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Zeitschriftenartikel zum Thema „Capture et la conversion du N2“

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Veröffentlicht am 25. Mai 2024

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1

Bass, Adam Stuart, Anand Chandra Singh, Scott Paulson та Viola Ingrid Birss. "Minimizing Coke Formation at La_0.3Ca_0.7Fe_0.7Cr_0.3O_3-δ Perovskite Anodes in a Syngas Fed-SOFC". ECS Meeting Abstracts MA2023-02, № 46 (2023): 2238. http://dx.doi.org/10.1149/ma2023-02462238mtgabs.

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As the world moves to decarbonize the fossil fuel sector, transition technologies are needed that bridge the gap between natural gas power plants and more sustainable low-carbon energy sources. These newer technologies often still rely on fossil fuels but have improved energy conversion efficiencies and lower net carbon dioxide (CO2) outputs over conventional fossil fuel based electric power generation systems. In this work, we are exploring one such technology, namely the use of a syngas-fed solid oxide fuel cell (SOFC) to generate heat, electricity, steam, and captured CO2. Core to this tech

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Mezza, Alessio, Angelo Pettigiani, Nicolò B. D. Monti, et al. "An Electrochemical Platform for the Carbon Dioxide Capture and Conversion to Syngas." Energies 14, no. 23 (2021): 7869. http://dx.doi.org/10.3390/en14237869.

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We report on a simple electrochemical system able to capture gaseous carbon dioxide from a gas mixture and convert it into syngas. The capture/release module is implemented via regeneration of NaOH and acidification of NaHCO3 inside a four-chamber electrochemical flow cell employing Pt foils as catalysts, while the conversion is carried out by a coupled reactor that performs electrochemical reduction of carbon dioxide using ZnO as a catalyst and KHCO3 as an electrolyte. The capture module is optimized such that, powered by a current density of 100 mA/cm2, from a mixture of the CO2–N2 gas strea

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HASAN, A. T., and T. J. GRAY. "EXPERIMENTAL STUDY OF SINGLE-ELECTRON-CAPTURE CROSS SECTIONS BY LOW-ENERGY $N^+_2$ AND N+ IONS IN N2 MOLECULAR GAS." International Journal of Modern Physics E 11, no. 06 (2002): 567–72. http://dx.doi.org/10.1142/s0218301302001113.

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Absolute total cross sections for single-electron-capture are measured for [Formula: see text] and N+ ions traversing N2 molecular gas of collision energies in the range of 0.60 to 1.5 keV. These cross sections are found to be in the range of 3.97 - 6.25 Å2 for [Formula: see text] ions, and in the range of 0.46 - 1.67 Å2 for N+ ions. A comparison is made between the present measurements of the total cross sections of the N+ + N2 system and all the experimental results, which are represented by B. G. Lindsay et al.,1 for the O+ + N2 system. The present measurements of the total cross section of

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Mekbuntoon, Pongsakorn, Sirima Kongpet, Walailak Kaeochana, et al. "The Modification of Activated Carbon for the Performance Enhancement of a Natural-Rubber-Based Triboelectric Nanogenerator." Polymers 15, no. 23 (2023): 4562. http://dx.doi.org/10.3390/polym15234562.

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Increasing energy demands and growing environmental concerns regarding the consumption of fossil fuels are important motivations for the development of clean and sustainable energy sources. A triboelectric nanogenerator (TENG) is a promising energy technology that harnesses mechanical energy from the ambient environment by converting it into electrical energy. In this work, the enhancement of the energy conversion performance of a natural rubber (NR)-based TENG has been proposed by using modified activated carbon (AC). The effect of surface modification techniques, including acid treatments an

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Snoeckx, R., S. Heijkers, K. Van Wesenbeeck, S. Lenaerts, and A. Bogaerts. "Correction: CO₂ conversion in a dielectric barrier discharge plasma: N₂ in the mix as a helping hand or problematic impurity?" Energy & Environmental Science 15, no. 2 (2022): 866. http://dx.doi.org/10.1039/d2ee90005j.

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Correction for ‘CO2 conversion in a dielectric barrier discharge plasma: N2 in the mix as a helping hand or problematic impurity?’ by R. Snoeckx et al., Energy Environ. Sci., 2016, 9, 999–1011, DOI: 10.1039/C5EE03304G.

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Gong, Dehong, Zhongxiao Zhang, and Ting Zhao. "Decay on Cyclic CO2 Capture Performance of Calcium-Based Sorbents Derived from Wasted Precursors in Multicycles." Energies 15, no. 9 (2022): 3335. http://dx.doi.org/10.3390/en15093335.

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In order to obtain the cheap waste calcium-based sorbent, three wasted CaCO3 precursors, namely carbide slag, chicken eggshells, and analytical reagent-grade calcium carbonate, were selected and prepared at 700 °C to form calcium-based sorbents for CO2 capture. TGA was used to test the CO2 uptake performance of each calcium-based sorbent in 20 cycles. To identify the decay mechanism of CO2 uptake with an increasing number of cycles, all calcium-based sorbents were characterized by using XRF, XRD, and N2 adsorption. The specific surface area of calcium-based sorbents was used to redefine the fo

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Donskoy, I. G. "Thermodynamic modeling of solid fuel gasification in mixtures of oxygen and carbon dioxide." Journal of Physics: Conference Series 2119, no. 1 (2021): 012101. http://dx.doi.org/10.1088/1742-6596/2119/1/012101.

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Abstract One of the main problems in the use of solid fuels is inevitable formation of significant amounts of carbon dioxide. The prospects for reducing CO2 emissions (carbon capture and storage, CCS) are opening up with the use of new coal technologies, such as thermal power plants with integrated gasification (IGCC) and transition to oxygen-enriched combustion (oxyfuel). In order to study the efficiency of solid fuel conversion processes using carbon dioxide, thermodynamic modeling was carried out. Results show that difference between efficiency of fuel conversion in O2/N2 and O2/CO2 mixture

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Moreira-Coello, Víctor, Beatriz Mouriño-Carballido, Emilio Marañón, Ana Fernández-Carrera, María PÉrez-Lorenzo, and Antonio Bode. "Quantifying the overestimation of planktonic N2 fixation due to contamination of 15N2 gas stocks." Journal of Plankton Research 41, no. 4 (2019): 567–70. http://dx.doi.org/10.1093/plankt/fbz034.

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AbstractThe 15N2-tracer assay [Montoya et al. (1996) A simple, high-precision, high-sensitivity tracer assay for N2 fixation. Appl. Environ. Microbiol., 62, 986–993.] is the most used method for measuring biological N2 fixation in terrestrial and aquatic environments. The reliability of this technique depends on the purity of the commercial 15N2 gas stocks used. However, Dabundo et al. [(2014) PLoS One, 9, e110335.] reported the contamination of some of these stocks with labile 15N-labeled compounds (ammonium, nitrate and/or nitrite). The contamination of commercial 15N2 gas stocks with 15N-la

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Àlvares, Cristina. "Narration et prédation: Pascal Quignard et la théorie cynégétique du récit." Semiotica 2021, no. 239 (2021): 81–97. http://dx.doi.org/10.1515/sem-2018-0055.

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Résumé Notre propos est de réunir quelques réflexions de Pascal Quignard sur le récit afin d’en dégager les coordonnées ou les prémisses d’une théorie narrative chez cet écrivain qui, n’étant pas un théoricien, est sans doute quelqu’un qui fait œuvre de pensée. Notre hypothèse est que, situées dans le cadre d’une épistémologie naturaliste et d’un récit anthropogénétique au sein duquel la prédation joue un rôle majeur, en particulier celui de condition de possibilité de la narration, les spéculations de Quignard s’élaborent sur fond de la théorie sémio-narrative laquelle subit ainsi une reformu

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Piccirilli, Luca, Danielle Lobo Justo Pinheiro, and Martin Nielsen. "Recent Progress with Pincer Transition Metal Catalysts for Sustainability." Catalysts 10, no. 7 (2020): 773. http://dx.doi.org/10.3390/catal10070773.

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Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydr

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Yin, Huayi, and Dihua Wang. "(Invited) Electrochemical Conversion of CO₂ Into Oxygen/ and C/CO in Molten Carbonate." ECS Meeting Abstracts MA2023-01, no. 56 (2023): 2737. http://dx.doi.org/10.1149/ma2023-01562737mtgabs.

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The molten salt CO2 capture and electrochemical transformation (MSCC-ET) process has been demonstrated as an effective approach to capturing and converting CO2 into oxygen and C/CO [1-2]. The effective CO2 capture and electrochemical conversion rely on the high-temperature molten carbonate electrolytes and the cost-effective inert oxygen-evolution anode. In recent years, we have focused on the electrolyte engineering to modulate the reactions at both the cathode and anode as well as the CO2 capture efficiency [3-4]. Besides, we insist on developing iron- and nickel-base oxygen-evolution inert

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Wang, Lei, Wu Qin, Ling Nan Wu, et al. "Experimental Study on Coal Chemical Looping Combustion Using CuFe₂O₄ as Oxygen Carrier." Advanced Materials Research 805-806 (September 2013): 1387–90. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1387.

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Chemical-looping combustion (CLC) has been proposed as an efficient and clean technology that could contribute to achieve carbon dioxide capture with negligible cost. The technology uses a metal oxide as oxygen carrier that indirectly transfer oxygen from air to fuels to oxidize the fuels. CuFe2O4 was prepared as a novel oxygen carrier to decrease the cost of raw material and increase the reactivity of iron-based oxygen carrier. The structure of the prepared oxygen carrier was characterized by scanning electron microscope (SEM) and an X-ray diffractometer (XRD). The reaction of CuFe2O4 with co

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Du, Yapeng, Yu Chai, Xiaoping Zheng, and Yanzhen Zheng. "Theoretical Study on the Multiple Free Radical Scavenging Reactions of Pyranoanthocyanins." Antioxidants 13, no. 1 (2023): 33. http://dx.doi.org/10.3390/antiox13010033.

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The free radical trapping capacities of multiple pyranoanthocyanins in wine storage and ageing were theoretically explored by density functional theory (DFT) methods. Intramolecular hydrogen bonds were detected in all pyranoanthocyanins, and the planarity of the compounds worsened with an increasing dielectric constant in the environment. Solvents significantly influenced the reaction enthalpies; thus, the preferred thermodynamic mechanisms of the free radical scavenging reactions were modified in different phases. This study incorporates hydrogen atom transfer (HAT), proton loss (PL), electro

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Reisner, Erwin. "(Invited) Solar Panel Technologies for Light-to-Chemical Conversion." ECS Meeting Abstracts MA2023-02, no. 47 (2023): 2370. http://dx.doi.org/10.1149/ma2023-02472370mtgabs.

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Solar panels are well known to produce electricity, but they are also in early-stage development for the production of sustainable fuels and chemicals. These panels mimic plant leaves in shape and function as demonstrated for overall solar water splitting to produce green H2 by the laboratories of Nocera and Domen.1,2 This presentation will give an overview of our recent progress to construct prototype solar panel devices for the conversion of carbon dioxide and solid waste streams into fuels and higher-value chemicals through molecular surface-engineering of solar panels with suitable catalys

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Micheli, Francesca, Enrica Mattucci, Claire Courson, and Katia Gallucci. "Bi-Functional Catalyst/Sorbent for a H2-Rich Gas from Biomass Gasification." Processes 9, no. 7 (2021): 1249. http://dx.doi.org/10.3390/pr9071249.

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The aim of this work is to identify the effect of the CaO phase as a CO2 sorbent and mayenite (Ca12Al14O33) as a stabilizing phase in a bi-functional material for CO2 capture in biomass syngas conditioning and cleaning at high temperature. The effect of different CaO weight contents is studied (0, 56, 85, 100 wt%) in sorbents synthesized by the wet mixing method. These high temperature solid sorbents are upgraded to bi-functional compounds by the addition of 3 or 6 wt% of nickel chosen as the metal active phase. N2 adsorption, X-ray diffraction, scanning electronic microscopy, temperature-prog

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Hsieh, Chu-Chin, Jyong-Sian Tsai, and Jen-Ray Chang. "Effects of Moisture on NH3 Capture Using Activated Carbon and Acidic Porous Polymer Modified by Impregnation with H3PO4: Sorbent Material Characterized by Synchrotron XRPD and FT-IR." Materials 15, no. 3 (2022): 784. http://dx.doi.org/10.3390/ma15030784.

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The performances of reactive adsorbents, H3PO4/C (activated carbon) and H3PO4/A (Amberlyst 35), in removing NH3 from a waste-gas stream were investigated using a breakthrough column. Accelerated aging tests investigated the effects of the water content on the performance of the adsorbents. Results of breakthrough tests show that the adsorption capacity greatly decreased with the drying time of H3PO4/C preparation. Synchrotron XRPD indicated increased amorphous phosphorus species formation with drying time. Nitrogen adsorption-desorption isotherms results further suggested that the evaporation

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Di Lauro, Enrico, Maria Maza, Javier L. Lara, Inigo J. Losada, and Diego Vicinanza. "NUMERICAL MODELING OF WAVE INTERACTION WITH A NON-CONVENTIONAL BREAKWATER FOR WAVE ENERGY CONVERSION." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 64. http://dx.doi.org/10.9753/icce.v36.structures.64.

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The hybrid non-conventional breakwaters are innovative coastal structures, which have as a primary function the coastal and harbours protection, but with the important benefit of electricity production, due to their combination with Wave Energy Converters. The most recent example of a non-conventional breakwater is called OBREC, standing for Overtopping Breakwater for Energy Conversion (Vicinanza et al., 2014). The device consists of a traditional rubble mound breakwater, in which the seaward armour layer in the upper part is replaced with a frontal sloping ramp and a reservoir. The structure

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Bohlen, Barbara, Nick Daems, and Tom Breugelmans. "Electrochemical Production of Formate Directly from Amine-Based CO₂ Capture Media." ECS Meeting Abstracts MA2023-01, no. 26 (2023): 1722. http://dx.doi.org/10.1149/ma2023-01261722mtgabs.

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Introduction There is an urgency for the development and establishment of technologies to deal with the effects of climate change and increasing temperature of the planet.1 The decrease in the CO2 emissions is a possible path, and the capture of CO2 from the atmosphere is another alternative to try and tackle the effects of climate change.2 The combination of capture and conversion of CO2 is a potential approach to achieve the net-zero emission goals and a circular economy for the future.3 Amine scrubbing is an industrially established capture technology that utilizes mainly monoethanolamine (

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Jiang, Z., T. Xiao, V. L. Kuznetsov, and P. P. Edwards. "Turning carbon dioxide into fuel." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, no. 1923 (2010): 3343–64. http://dx.doi.org/10.1098/rsta.2010.0119.

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Our present dependence on fossil fuels means that, as our demand for energy inevitably increases, so do emissions of greenhouse gases, most notably carbon dioxide (CO 2 ). To avoid the obvious consequences on climate change, the concentration of such greenhouse gases in the atmosphere must be stabilized. But, as populations grow and economies develop, future demands now ensure that energy will be one of the defining issues of this century. This unique set of (coupled) challenges also means that science and engineering have a unique opportunity—and a burgeoning challenge—to apply their understa

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Shibata, Setsuko, Eiko Kawano, and Takeshige Nakabayashi. "Research Center of Radioisotopes at University of Osaka Prefecture Radiocarbon Dates I." Radiocarbon 39, no. 1 (1997): 79–87. http://dx.doi.org/10.1017/s0033822200040935.

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The radiocarbon dating laboratory has been in operation since 1984 at the Radiation Center of Osaka Prefecture (OR), predecessor of the Research Center of Radioisotopes, University of Osaka Prefecture. We use liquid scintillation counting (LSC), following sample conversion to methanol through combustion and LiAlH4 reduction. This method was developed by Yamada et al. (Yamada, Higashimura and Shidei 1966; Yamada and Kobashigawa 1986). In cooperation with Yamada, we somewhat modified their procedure: 1) sample charcoal is burned at 700° in the presence of CuO needles and Sulfix grains to remove

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Ghodake, Pravinkumar. "The complexity of harmonically scattered nonlinear waves from triangular, circular, and rectangular corners of the 2-D domain." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A262. http://dx.doi.org/10.1121/10.0023468.

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Considering recent advancements in the nonlinear pulse-echo technique, understanding reflected nonlinear waves from inaccessible edges and surfaces becomes important. A unique geometrical model solved numerically using the finite element method is proposed and studied via extensive numerical experiments to gain insight into harmonically scattered waves from different shapes of the 2-D spaced corners considering the challenges of theoretical solutions that can capture the interplay between multiple phenomena. Tang et al. (2012), Kube (2017-18), and Achenbach and Wang (2017-18) studied the harmo

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Kim, Seon Il, Yong Jae Kim, JaeHyoung Yun, and Wonhyoung Ryu. "MnO₂-Modified 3D-Printed Lattice Photo-Bioelectrode for Photosynthetic Energy Conversion from Spinach Thylakoids." ECS Meeting Abstracts MA2022-01, no. 45 (2022): 1884. http://dx.doi.org/10.1149/ma2022-01451884mtgabs.

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Photosynthetic bio-solar energy conversion has been widely investigated as a promising potential in the field of renewable energy due to its high internal quantum efficiency. Thylakoid membranes (TMs) are organelles in chloroplasts where photosynthesis occurs. Once photosynthesis begins photosynthetic electrons (PEs) were generated, and they were transferred via proteins embedded in TMs by sequential redox reactions. To efficiently collect PEs, several approaches were reported to improve electrical connections such as carbon nanotube modified electrode [1], graphene oxide (GO)/TMs composites [

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Owhoso, Fiki V., and David G. Kwabi. "Effect of Covalent Modification on Proton-Coupled Electron Transfer at Quinone-Functionalized Carbon Electrodes." ECS Meeting Abstracts MA2022-02, no. 57 (2022): 2171. http://dx.doi.org/10.1149/ma2022-02572171mtgabs.

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Electrodes functionalized with molecularly well-defined reactive/catalytic species have become attractive for promoting a wide variety of electrochemical energy conversion processes or systems, such as electrocatalytic CO2 and O2 reduction, as well as metal-sulfur and redox-flow batteries.1-3 Critical to the performance of these electrodes is the interaction between the electric field, and the molecular species at the electrical double layer. Nevertheless, elucidating the potential/electric field experienced at the functionalized interface is challenging. We show in this work that the acid-bas

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Fasolini, Andrea, Silvia Ruggieri, Cristina Femoni, and Francesco Basile. "Highly Active Catalysts Based on the Rh4(CO)12 Cluster Supported on Ce0.5Zr0.5 and Zr Oxides for Low-Temperature Methane Steam Reforming." Catalysts 9, no. 10 (2019): 800. http://dx.doi.org/10.3390/catal9100800.

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Syngas and Hydrogen productions from methane are industrially carried out at high temperatures (900 °C). Nevertheless, low-temperature steam reforming can be an alternative for small-scale plants. In these conditions, the process can also be coupled with systems that increase the overall efficiency such as hydrogen purification with membranes, microreactors or enhanced reforming with CO2 capture. However, at low temperature, in order to get conversion values close to the equilibrium ones, very active catalysts are needed. For this purpose, the Rh4(CO)12 cluster was synthetized and deposited ov

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Harvey, S. P., and H. J. Richter. "Gas Turbine Cycles With Solid Oxide Fuel Cells—Part I: Improved Gas Turbine Power Plant Efficiency by Use of Recycled Exhaust Gases and Fuel Cell Technology." Journal of Energy Resources Technology 116, no. 4 (1994): 305–11. http://dx.doi.org/10.1115/1.2906458.

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In conventional energy conversion processes, the fuel combustion is usually highly irreversible, and is thus responsible for the low overall efficiency of the power generation process. The energy conversion efficiency of the combustion process can be improved if immediate contact of fuel and oxygen is prevented and an oxygen carrier is used. In a previous paper (Harvey et al., 1992), a gas turbine cycle was investigated in which part of the exhaust gases—consisting mainly of CO2, H2O, and N2—are recycled and used as oxygen-carrying components. For the optimized process, a theoretical thermal e

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Song, Jun Tae, Yuta Takaoka, Atsushi Takagaki, Motonori Watanabe, and Tatsumi Ishihara. "Synergistic Integration of Zr-MOF (UiO-66) and Bi Electrocatalysts for Enhanced CO₂ Conversion to Formate." ECS Meeting Abstracts MA2023-02, no. 47 (2023): 2382. http://dx.doi.org/10.1149/ma2023-02472382mtgabs.

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The utilization of renewable energy-driven CO2 conversion technology has garnered considerable attention as a potential remedy for both the energy crisis and climate change. Among various methods, the electrocatalytic CO2 reduction reaction (CO2RR) has received particular focus due to its mild reaction conditions and its ability to produce various valuable products. Specifically, formic acid holds great promise for CO2 electrolysis due to its potential for energy storage and transportation, as well as its commercial viability as indicated by techno-economic assessments. Bi, In, and Sn are seve

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Dubadi, Rabindra, Ewelina Weidner, Bogdan Samojeden та ін. "Exploring the Multifunctionality of Mechanochemically Synthesized γ-Alumina with Incorporated Selected Metal Oxide Species". Molecules 28, № 5 (2023): 2002. http://dx.doi.org/10.3390/molecules28052002.

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γ-Alumina with incorporated metal oxide species (including Fe, Cu, Zn, Bi, and Ga) was synthesized by liquid-assisted grinding—mechanochemical synthesis, applying boehmite as the alumina precursor and suitable metal salts. Various contents of metal elements (5 wt.%, 10 wt.%, and 20 wt.%) were used to tune the composition of the resulting hybrid materials. The different milling time was tested to find the most suitable procedure that allowed the preparation of porous alumina incorporated with selected metal oxide species. The block copolymer, Pluronic P123, was used as a pore-generating agent.

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Ustarroz, Jon, Miguel Bernal Lopez, Daniel Torres, Sajid Hussain, and Leonardo Bertolucci Coelho. "(Invited) High-Throughput Nanoscale Resolved Electrochemistry to Study Electrochemical Nucleation, Growth and Dissolution." ECS Meeting Abstracts MA2022-01, no. 23 (2022): 1148. http://dx.doi.org/10.1149/ma2022-01231148mtgabs.

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Electrochemical nucleation and growth (EN&G) is the cornerstone for many (nano)material growth routes and the main factor limiting battery durability. At the same time electrochemical dissolution (ED) is the main cause of material degradation in exposed environments (corrosion) or energy conversion and storage devices. The in-depth experimental assessment of both processes is very challenging. The reasons are the random nature of initiation events (nucleation), the heterogeneity of surfaces and the (very) fast kinetics of these processes across several length scales. For all that, our curr

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Carpenter, Chris. "Natural-Gas-Foam Fluid Reduces Water Needed for Fracture Stimulations." Journal of Petroleum Technology 73, no. 06 (2021): 56–57. http://dx.doi.org/10.2118/0621-0056-jpt.

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This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 201450, “Reducing the Volume of Water Needed For Hydraulic Fracturing by Using Natural-Gas-Foamed Stimulation Fluid,” by Raj Malpani, SPE, Chris Daeffler, and Sandeep Verma, SPE, Schlumberger, et al., prepared for the 2020 SPE Annual Technical Conference and Exhibition, originally scheduled to be held in Denver, Colorado, 5–7 October. The paper has not been peer reviewed. Using natural-gas (NG) -foam fracturing fluids reduces the enormous water requirements for stimulation by as much as 60 to 80% a

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Harada, Yuya, Daiki Kono, Dai Xinjie, and Tsukasa Yoshida. "Hydrogen Evolution Reaction By Metal-Free Poly-Neutral Red Electrocatalyst." ECS Meeting Abstracts MA2022-02, no. 22 (2022): 925. http://dx.doi.org/10.1149/ma2022-0222925mtgabs.

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While electric power supply by renewable sources such as solar and wind has become viable for their significant cost reduction, its intermittency demands urgent development of large scale storage technologies. Although conversion of electrical energy into storable hydrogen via electrolysis of water is ideal, noble metals and their oxides are used as electrocatalysts for their activities and stabilities. Alternative electrocatalysts out of abundant elements are needed for sustainable technological development. Recently, some metal-free organic conductive polymers with hydrogen-bonding capabilit

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Novoselova, Inessa, Sergiy Kuleshov, and Anatoliy Omel'chuk. "(Digital Presentation) Electrochemical Conversion of CO₂ into Tungsten Carbides in Molten Salts." ECS Meeting Abstracts MA2023-01, no. 26 (2023): 1744. http://dx.doi.org/10.1149/ma2023-01261744mtgabs.

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Huge amounts of anthropogenic emissions of the greenhouse gas carbon dioxide into the Earth's atmosphere are one of the key factors causing global warming. To mitigate the consequences of the severe climate changes caused by this phenomenon, over the last two decades great efforts of researchers have been directed towards the development of sustainable, environmentally friendly, carbon neutral and, if possible, not very expensive (in terms of used energy and inexpensive consumables) technologies for capture, conversion and storage (CCS) of CO2. Electrochemical conversion of CO2 using molten sa

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Noudari, Abhinav, Shailesh Pathak, William Mcginley, Gautam Gupta, Sreedevi Upadhyayula, and Mahendra Sunkara. "Plasma-Catalytic Methane Pyrolysis for Hydrogen and Valuable Carbons." ECS Meeting Abstracts MA2023-01, no. 20 (2023): 1497. http://dx.doi.org/10.1149/ma2023-01201497mtgabs.

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Current technologies for hydrogen production are based primarily on reforming of fossil fuels using steam, which produces large amount of carbon dioxide emissions (> 9 tons of CO2 per ton of hydrogen produced). Majority of refineries, ammonia producers, and fuel cell power plants utilize steam methane reforming for production of hydrogen at scale. In this paper, we discuss an approach for activating methane and pyrolyzing using molten metal based alloys that includes Gallium. Sunkara’s group had developed this process earlier for making carbon micro-tubes with tunable morphology.[1, 2] Here

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Tekin, Serdar B., Saeed Almalki, Andrea Vezzoli, et al. "(Digital Presentation) Optimization of MIM Rectifiers for Terahertz Rectennas." ECS Meeting Abstracts MA2022-01, no. 19 (2022): 1076. http://dx.doi.org/10.1149/ma2022-01191076mtgabs.

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There is a significant demand for harvesting renewable infrared (IR) energy from unused heat sources. The rectifying antenna (rectenna) device has the ability to capture alternating current (AC) IR radiation and rectify it into usable direct current (DC) electricity. Metal-Insulator-Metal (MIM) diodes have shown to be the most prominent contenders for rectenna applications. This is due to their ultra-fast current transport mechanism in the femtosecond range by means of quantum mechanical tunnelling. Optical rectification at 28.3 THz has recently been demonstrated by rectenna devices based on M

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Dominguez-Benetton, Xochitl. "Synthesis of Nanostructures Using Gas-Diffusion Electrodes." ECS Meeting Abstracts MA2022-02, no. 24 (2022): 994. http://dx.doi.org/10.1149/ma2022-0224994mtgabs.

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Gas diffusion electrodes (GDEs) intertwine an ionically conducting liquid and a gas with an electrically conducting solid, supporting electrochemical reactions involving constituents linked to the three phases (i.e., chemical species, electrons). GDEs are broadly used in electrochemical energy-conversion devices, such as fuel cells and metal-air batteries, as well as in electrolyzers aiming at chemical synthesis, like in the chlor-alkali industry, hydrogen peroxide production, CO2 conversions to fuels and fine chemicals, or N2 reduction to ammonia. Recently, the use of GDEs was pioneered for m

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Dominguez-Benetton, Xochitl. "(Invited) Lithium Recovery from Geothermal Brines." ECS Meeting Abstracts MA2022-02, no. 27 (2022): 1040. http://dx.doi.org/10.1149/ma2022-02271040mtgabs.

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Lithium is a critical raw material for developing current lithium-ion batteries and prospective next-generation batteries. Its reserves are concentrated in a handful of countries. It is primarily extracted from continental brines, wherein Li+ is relatively concentrated (0.3 –1.5 wt%) in a complex mixture of many more components with relatively large water solubilities. Current practices to extract lithium from continental brines involve evaporation, i.e., >90% of water. Eventually, the concentration of Li+ intensifies up to 6–7%, in a brine which follows numerous chemical processing steps,

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Cobb, Samuel J., Azim M. Dharani, Ana Rita Oliveira, Inês A. C. Pereira, and Erwin Reisner. "Using Enzymes to Understand and Control the Local Environment of Catalysis." ECS Meeting Abstracts MA2023-02, no. 52 (2023): 2530. http://dx.doi.org/10.1149/ma2023-02522530mtgabs.

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Local environments within porous electrodes are an inherent, but often neglected component of catalysis as the local conversion of reactants to products means catalysis occurs in a very different environment to bulk solution. By understanding and modifying these local environments using a combination of experimental and computational techniques, we show how to improve the performance of electrocatalytic reactions to address the climate crisis by efficiently converting renewable energy to chemical fuels. The selectivity and activity of enzymes means they are ideal model catalysts that can guide

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Roberts, James M., Chelsea E. Stockwell, Robert J. Yokelson, et al. "The nitrogen budget of laboratory-simulated western US wildfires during the FIREX 2016 Fire Lab study." Atmospheric Chemistry and Physics 20, no. 14 (2020): 8807–26. http://dx.doi.org/10.5194/acp-20-8807-2020.

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Abstract. Reactive nitrogen (Nr, defined as all nitrogen-containing compounds except for N2 and N2O) is one of the most important classes of compounds emitted from wildfire, as Nr impacts both atmospheric oxidation processes and particle formation chemistry. In addition, several Nr compounds can contribute to health impacts from wildfires. Understanding the impacts of wildfire on the atmosphere requires a thorough description of Nr emissions. Total reactive nitrogen was measured by catalytic conversion to NO and detection by NO–O3 chemiluminescence together with individual Nr species during a

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Gupta, Subodh. "Technology Focus: Decarbonization (July 2023)." Journal of Petroleum Technology 75, no. 07 (2023): 96–97. http://dx.doi.org/10.2118/0723-0096-jpt.

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With several applications under its belt, carbon capture and sequestration (CCS) is a proven technology. Costs are a concern, however, when it is not accompanied with CO2 enhanced oil recovery. Naturally, the effort is now to bring down costs by understanding various aspects of the process. This is reflected amply in the overwhelming majority of the approximately 300 papers on emissions reduction produced since late 2021 at various SPE conferences. These cover a range of CCS-related topics, such as onshore to offshore applications, drilling operations, well metallurgy, well-flow modeling, repu

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He, Wanru, Xuecao Li, Yuyu Zhou, et al. "Global urban fractional changes at a 1 km resolution throughout 2100 under eight scenarios of Shared Socioeconomic Pathways (SSPs) and Representative Concentration Pathways (RCPs)." Earth System Science Data 15, no. 8 (2023): 3623–39. http://dx.doi.org/10.5194/essd-15-3623-2023.

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Abstract. The information of global spatially explicit urban extents under scenarios is important to mitigate future environmental risks caused by global urbanization and climate change. Although future dynamics of urban extent were commonly modeled with conversion from non-urban to urban extent using cellular-automata (CA)-based models, gradual changes of impervious surface area (ISA) at the pixel level were limitedly explored in previous studies. In this paper, we developed a global dataset of urban fractional changes at a 1 km resolution from 2020 to 2100 (5-year interval), under eight scen

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Hu, Shu. "(Invited) A Coating Strategy for Heterogeneous Photocatalysis Producing Renewable Fuels." ECS Meeting Abstracts MA2022-01, no. 36 (2022): 1554. http://dx.doi.org/10.1149/ma2022-01361554mtgabs.

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Photocatalysts coevolve reductive and oxidative reactions in close proximity. Due to simplified reactor implementation, photocatalysis promises solar fuels production at scale. Despite decades of study, their rates and selectivity were often improved by trial and error, and their solar-to-fuel conversion efficiencies remain much lower than the theoretical limit. I will discuss an emerging coating strategy to stabilize particulate photocatalysts in a photo-reactor that promises solar energy utilization at scale. Those photocatalysts coevolve reductive and oxidative reactions in close proximity,

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AIB, Ekejiuba. "Universal “Plug and Play” Real-Time Entire Automotive Exhaust Effluents, Industry Vents and Flue Gas Emissions Liquefiers: The Game Changer Approach-Phase Two Category." Petroleum & Petrochemical Engineering Journal 7, no. 2 (2023): 1–56. http://dx.doi.org/10.23880/ppej-16000349.

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The first in the series of Azuberths Game Changer publications “Synergy of the Conventional Crude Oil and the FT-GTL Processes for Sustainable Synfuels Production: The Game Changer Approach-Phase One Category” a.k.a. (DOI: 10.23880/ppej16000330) is targeted at reducing 80 per cent CO2 emissions from the internal combustion engines by upgrading from the conventional crude oil refinery products to the synthetic fuels products (ultra-low-carbon fuels). This paper will focus on the complete elimination of the remaining 20 per cent CO2 emissions (i.e. to achieve zero- CO2 emissions) in transportati

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Bhattacharyya, Paramita, Brahim Ahammou, Fahmida Azmi, Rafael Kleiman, and Peter Mascher. "Design and Fabrication of Multiple-Color-Generating Thin-Film Optical Filters for Photovoltaic Applications." ECS Meeting Abstracts MA2022-01, no. 19 (2022): 1064. http://dx.doi.org/10.1149/ma2022-01191064mtgabs.

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The use of electric vehicles (EVs) can reduce greenhouse gas emissions, air pollution, dependency on fossil fuels, and their adverse health effects on humans. But, we can only utilize the full environmental benefits of EVs when they are charged with renewable energy sources with zero or low carbon emissions. As a solution, Mobarak et al. [1] suggested integrating low-cost, flexible, and thin-film copper indium gallium selenide (CIGS) solar cells directly onto the steel of all the upward-facing body parts of the vehicles. But, this integration of solar cells comes with an aesthetic drawback. Pr

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Liu, Matthew Junjie, Huaxin Gong, Kindle Shea Williams, et al. "Electrocatalytic Nitrate Reduction to Ammonia at Atomically Dispersed Titanium Sites on Carbon Nanoflowers." ECS Meeting Abstracts MA2023-01, no. 39 (2023): 2299. http://dx.doi.org/10.1149/ma2023-01392299mtgabs.

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Active nitrogen species are widely acknowledged as pollutants that are both harmful to the environment as well as human health. Emissions from wastewater and agricultural applications contain nitrogen in many forms, but in soils and waterways nitrate (NO3 -) predominates due to the presence of nitrifying bacteria. In comparison to more reduced forms of nitrogen such as total ammonia (NH3/NH4 +), nitrate is not only a less versatile species from a chemical manufacturing and energy standpoint; it is also more difficult to selectively separate from wastewater streams. For instance, we have conduc

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Nowell, W. B., J. Curtis, F. Xie, et al. "THU0564 PARTICIPANT ENGAGEMENT IN AN ARTHRITISPOWER REAL-WORLD STUDY TO CAPTURE SMARTWATCH AND PATIENT-REPORTED OUTCOME DATA AMONG RHEUMATOID ARTHRITIS PATIENTS." Annals of the Rheumatic Diseases 79, Suppl 1 (2020): 523–24. http://dx.doi.org/10.1136/annrheumdis-2020-eular.2355.

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Background:Clear characterization of how different types of patient-generated data reflect patient experience is needed to guide integration of electronic patient-reported outcome (ePRO) measures and biometrics in generating real-word evidence (RWE) related to rheumatoid arthritis (RA).Objectives:To characterize the level of participant (pt) engagement/adherence and data completeness in an ongoing study of 250 RA pts enrolled in the Digital Tracking of Arthritis Longitudinally (DIGITAL) study1of the ArthritisPower real-world registry.Methods:ArthritisPower pts with RA were invited to join a di

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Nagel, A., M. Radziszewski, B. Khatri, et al. "POS0456 AUTOPHAGY-RELATED RISK LOCI IN SLE AND THEIR ROLE IN NEUTROPHILS." Annals of the Rheumatic Diseases 81, Suppl 1 (2022): 482.1–482. http://dx.doi.org/10.1136/annrheumdis-2022-eular.2496.

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BackgroundSystemic lupus erythematous (SLE) is an autoimmune disease with ~150 established susceptibility risk loci. Genome wide-association (GWA) studies in SLE cases and controls of Korean ancestry identified the SLE risk locus ATG16L2-P2RY2, and rs11235604 as a SLE-associated missense variant (R220W) of Autophagy Related 16 Like 2 (ATG16L2) [1]. PRDM1-ATG5 is also an SLE risk locus in European populations that is implicated in autophagy. Autophagy plays a crucial role in neutrophil extracellular trap (NET) formation, degranulation, and limiting autoantigens in blood. Dysregulated autophagy

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Gado, Alanna M., Deniz Ipekçi, Stoyan Bliznakov, Leonard J. Bonville, Jeffrey McCutcheon, and Radenka Maric. "Investigation of the Performance and Durability of Reactive Spray Deposition Fabricated Electrodes on a Bifunctional Membrane for Alkaline Water Electrolysis and CO₂ Reduction Reaction." ECS Meeting Abstracts MA2023-01, no. 38 (2023): 2250. http://dx.doi.org/10.1149/ma2023-01382250mtgabs.

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Alkaline water electrolysis (AWE) is a promising technology for carbon capture [1]. Anion exchange membrane water electrolyzers (AEMWEs) utilize low-cost, non-precious metal materials, providing an economically viable alternative to more expensive proton exchange membrane water electrolyzers (PEMWEs). While PEMWEs can operate at much higher current densities, they require noble metal catalysts and titanium components for the high potential environment anode [1]. The implementation of a bipolar membrane (BPM) will allow both HER and OER to occur under kinetically favorable conditions [2, 3] by

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Rocha, N. A. S., B. C. S. Leão, M. F. Accorsi, and G. Z. Mingoti. "90 INTRACELLULAR REACTIVE OXYGEN SPECIES IN BOVINE EMBRYOS CULTURED IN VITRO WITH CATALASE UNDER VARIOUS OXYGEN TENSIONS." Reproduction, Fertility and Development 24, no. 1 (2012): 157. http://dx.doi.org/10.1071/rdv24n1ab90.

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The production of reactive oxygen species (ROS), such as superoxide anion (O2–), hydroxyl radical (OH–) hydrogen peroxide (H2O2) and organic peroxides, is a normal process that occurs in the cellular mitochondrial respiratory chain. The high oxygen tension in in vitro culture (IVC) conditions is believed to induce oxidative stress, as a result of increase in ROS intracellular production, that can be correlated with embryonic developmental failure. Supplementation with antioxidants during IVC appears to increase the resistance of bovine embryos to the oxidative stress and consequently improve e

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Sachs, Michael, Benjamin Poulter, Zhaoyuan Yang, et al. "Impact of Solvent-Solute Hydrogen Bonding on Ultrafast Electron Transfer in a Trimetallic Iron-Ruthenium Complex." ECS Meeting Abstracts MA2022-02, no. 48 (2022): 1807. http://dx.doi.org/10.1149/ma2022-02481807mtgabs.

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Transition metal complexes (TMCs) are widely used as light absorbers and catalysts for photochemical energy conversion processes such as photocatalytic reactions in liquid environments. Of particular interest are TMCs which incorporate multiple bridged metal centres because they represent a step towards more complex supramolecular assemblies that can ultimately enable control of the charge flow in solution-based photo-redox processes. However, the development of design guidelines for such molecular assemblies is impeded by an incomplete understanding of the coupling between their electronic an

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Carpenter, Chris. "Well-Integrity Risk-Assessment Strategy Applied to CO2 Sequestration Project." Journal of Petroleum Technology 75, no. 01 (2023): 78–80. http://dx.doi.org/10.2118/0123-0078-jpt.

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_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper IPTC 22348, “Scrutinizing Well Integrity for Determining Long-Term Fate of a CO2 Sequestration Project: An Improved and Rigorous Risk-Assessment Strategy,” by Parimal A. Patil, SPE, Asyraf M. Hamimi, and M. Azuan B. Abu Bakar, Petronas, et al. The paper has not been peer reviewed. Copyright 2022 International Petroleum Technology Conference. Reproduced by permission. _ Depleted hydrocarbon reservoirs are considered inherently safe for carbon sequestration, but a high density of wells penetrating the

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Ashok Choppadandi. "Enhancing Customer Experience in E-Commerce Through AI-Powered Personalization: A Case Study." Tuijin Jishu/Journal of Propulsion Technology 43, no. 4 (2023): 516–24. http://dx.doi.org/10.52783/tjjpt.v43.i4.6018.

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Aim: This study is intended to engage in the in-depth study of AI-enabled personalization tactics on the quality of customer experience as competition informs the e-commerce environment. The research employs a case study assessment of a prominent world-wide retailer with the primary aim of revealing the dominant influence of cutting-edge AI personalisation technology in actual applications. Methods: The study applied the mixed-methods research, which was made up of quantitative as well as qualitative research techniques such as sound data analysis and field research approaches to arrive at a c

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