Добірка наукової літератури з теми "Tellurium cycling"

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Статті в журналах з теми "Tellurium cycling"

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Koketsu, Toshinari, Benjamin Paul, Chao Wu, Ralph Kraehnert, Yunhui Huang, and Peter Strasser. "A lithium–tellurium rechargeable battery with exceptional cycling stability." Journal of Applied Electrochemistry 46, no. 6 (April 9, 2016): 627–33. http://dx.doi.org/10.1007/s10800-016-0959-8.

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Akin, T. G., Bryan Hemingway, and Steven Peil. "Tellurium spectrometer for 1S01P1 transitions in strontium and other alkaline-earth atoms." Review of Scientific Instruments 93, no. 5 (May 1, 2022): 053002. http://dx.doi.org/10.1063/5.0084122.

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We measure the spectrum of tellurium-130 in the vicinity of the 461 nm [Formula: see text] cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases. The lack of hyperfine structure in tellurium results in a spectral density of transitions nearly 50 times lower than that available in iodine, making use of tellurium as a laser-frequency reference challenging. By frequency-offset locking two lasers, we generate the large frequency shifts required to span the difference between a tellurium line and the [Formula: see text] resonance in strontium or other alkaline-earth atoms. The resulting laser architecture is long-term frequency stable, widely tunable, and optimizes the available laser power. The versatility of the system is demonstrated by using it to quickly switch between any strontium isotope in a magneto-optical trap and by adapting it to spectroscopy on a thermal beam with a different alkaline-earth atom.
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Missen, Owen P., Barbara Etschmann, Stuart J. Mills, Santonu K. Sanyal, Rahul Ram, Jeremiah Shuster, Maria A. D. Rea, et al. "Tellurium biogeochemical transformation and cycling in a metalliferous semi-arid environment." Geochimica et Cosmochimica Acta 321 (March 2022): 265–92. http://dx.doi.org/10.1016/j.gca.2021.12.024.

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Salakhova, Elza, D. B. Tagiyev, P. E. Kalantarova, and A. M. Asgarova. "The Electrodeposition rhenium-tellurium alloys from chlorides asides electrolytes." JOURNAL OF ADVANCES IN CHEMISTRY 15, no. 2 (July 4, 2018): 6199–206. http://dx.doi.org/10.24297/jac.v15i2.7457.

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There has been investigated the joint electrodeposition of rhenium with tellur from chlorides electrolyte, by measuring the cycling volt-ampere curves there has been determined the field of potentials, at the presence of which the joint electrodeposition of rhenium with sulphur takes place. It has been shown, that the joint deposition of rhenium with tellur goes with a certain depolarization, besides, the depolarization is caused by the energy emanating along formation of ReTe2 compounds. There was studied the influence of current density, temperature and acidity on the composition and quality of cathode sediments. It was established, that with the rise of current density and the temperature of electrolyte the concentration of rhenium in the alloy increases.
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Zhang, Yue, Wei Lu, Donald J. Freschi, Yulong Liu, and Jian Liu. "Investigation of Cathode Structure and Electrolyte Chemistry for Emerging Metal-Tellurium Batteries." ECS Meeting Abstracts MA2022-01, no. 4 (July 7, 2022): 567. http://dx.doi.org/10.1149/ma2022-014567mtgabs.

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Tellurium (Te) has received rising attention as electrode materials in next-generation high-energy-density rechargeable batteries due to its superior electronic conductivity and comparable specific volumetric capacity compared to conversion-type sulfur or selenium. To date, there is a lack of comprehensive understanding regarding the fundamental electrochemistry, structure design and electrolyte chemistry in emerging metal-Te battery systems. Herein, extensive efforts have been made in our group to figure out the role of carbon host in Te/C cathode architecture and construct highly stable Te/C cathodes. Our finding is that an ideal porous carbon is required to possess a majority of micropores to confine Te active materials and a small portion of mesopores to facilitate electrolyte wetting and Li-ion transport. Importantly, a durable Li-Te battery over 1,000 cycles at 2C was achieved with microporous carbon as Te host to constrain volume change of Te. A quasi-solid-state Li-Te is also constructed and demonstrates superior cycling and rate performance than Li-S/Se batteries with the same cell configuration. Moreover, the electrolyte chemistry and reaction mechanism in K-Te battery system are comprehensively revealed from the aspects of redox kinetics and surface chemistry. The two electrolyte salts (potassium hexafluorophosphate, KPF6 and potassium bis(fluorosulfonyl)imide, KFSI) induce similar phase transformation but different specific capacity, reaction kinetics, and SEI composition on the Te/C cathode. These findings are expected to promote the development of Te-based next-generation energy storage systems.
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Aghazadeh, Mustafa, and Hamzeh Foratirad. "Facile fabrication of mixed samarium/tellurium metal–organic frameworks onto Ni foam and its outstanding cycling performance as binder-free battery-type electrode for supercapacitors." Materials Letters 313 (April 2022): 131804. http://dx.doi.org/10.1016/j.matlet.2022.131804.

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Yu, Zhijing, Shuqiang Jiao, Jiguo Tu, Yiwa Luo, Wei-Li Song, Handong Jiao, Mingyong Wang, Haosen Chen, and Daining Fang. "Rechargeable Nickel Telluride/Aluminum Batteries with High Capacity and Enhanced Cycling Performance." ACS Nano 14, no. 3 (March 2, 2020): 3469–76. http://dx.doi.org/10.1021/acsnano.9b09550.

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Brostow, Witold, Tea Datashvili, Haley E. Hagg Lobland, Travis Hilbig, Lisa Su, Carolina Vinado, and John White. "Bismuth telluride-based thermoelectric materials: Coatings as protection against thermal cycling effects." Journal of Materials Research 27, no. 22 (October 29, 2012): 2930–36. http://dx.doi.org/10.1557/jmr.2012.335.

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Harish, S., D. Sivaprahasam, B. Jayachandran, R. Gopalan, and G. Sundararajan. "Performance of bismuth telluride modules under thermal cycling in an automotive exhaust thermoelectric generator." Energy Conversion and Management 232 (March 2021): 113900. http://dx.doi.org/10.1016/j.enconman.2021.113900.

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Han, Chao, Zhen Li, Wei-jie Li, Shu-lei Chou, and Shi-xue Dou. "Controlled synthesis of copper telluride nanostructures for long-cycling anodes in lithium ion batteries." Journal of Materials Chemistry A 2, no. 30 (June 18, 2014): 11683. http://dx.doi.org/10.1039/c4ta01579g.

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Дисертації з теми "Tellurium cycling"

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Feleni, Usisipho. "Quantum dots-amplified electrochemical cytochrome P450 phenotype sensor for tamoxifen, a breast cancer drug." University of the Western Cape, 2017. http://hdl.handle.net/11394/5505.

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Philosophiae Doctor - PhD
Breast cancer is regarded as the most common cancer in South Africa and its rate of occurrence is increasing. About one in every 31 South African women are at the risk of developing breast cancer and early diagnosis and treatment guarantee 90% survival rate. Tamoxifen is the drugs of choice for the treatment of all stages of breast cancer. The drug binds with estrogen receptor (ER) to minimize the transcription of estrogen dependent genes. However, nearly 50% of ER-positive breast cancer patients either become resistant or fail to respond to tamoxifen resulting in a serious clinical challenge in breast cancer management. The Grand Health Challenges of South Africa includes the development of cost effective diagnostic systems suitable for early detection of diseases and drug resistivity for timely invention and better patient management.
2020-08-31
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Feleni, Usisipho. "Palladium telluride quantum dots biosensor for the determination of indinavir drug." 2013. http://hdl.handle.net/11394/3504.

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Magister Scientiae - MSc
Indinavir is a potent and well tolerated protease inhibitor drug used as a component of the highly active antiretroviral therapy (HAART) of HIV/AIDS, which results in pharmacokinetics that may be favourable or adverse. These drugs work by maintaining a plasma concentration that is sufficient to inhibit viral replication and thereby suppressing a patient’s viral load. A number of antiretroviral drugs, including indinavir, undergo metabolism that is catalysed by cytochrome P450-3A4 enzyme found in the human liver microsomes. The rate of drug metabolism influences a patient’s response to treatment as well as drug interactions that may lead to life-threatening toxic conditions, such as haemolytic anaemia, kidney failure and liver problems. Therapeutic drug monitoring (TDM) during HIV/AIDS treatment has been suggested to have a potential to reduce drug toxicity and optimise individual therapy. A fast and reliable detection technique, such as biosensing, is therefore necessary for the determination of a patient’s metabolic profile for indinavir and for appropriate dosing of the drugs. In this study biosensors developed for the determination of ARV drugs comprised of cysteamine self-assembled on a gold electrode, on which was attached 3-mercaptopropionic acid-capped palladium telluride (3-MPA-PdTe) or thioglycolic acid-capped palladium telluride (TGA-PdTe) quantum dots that are cross-linked to cytochrome P450-3A4 (CYP3A4) in the presence of 1-ethyl-3(3-dimethylaminopropyl) carbodiimide hydrochloride and N-hydroxysuccinimide. The quantum dots were synthesized in the presence of capping agents (3-MPA or TGA) to improve their stability, solubility and biocompatibility. The capping of PdTe quantum dots with TGA or 3-MPA was confirmed by FTIR, where the SH group absorption band disappeared from the spectra of 3-MPA-PdTe and TGA-PdTe. The particle size of the quantum dots (< 5 nm) was estimated from high resolution transmission electron microscopy (HRTEM) measurements. Optical properties of the materials were confirmed by UV-Vis spectrophotometry which produced absorption iii bands at ~320 nm that corresponded to energy band gap values of 3 eV (3.87 eV) for TGAPdTe (3-MPA-PdTe) quantum dots. The electrocatalytic properties of the quantum dots biosensor systems were studied by cyclic voltammetry (CV) for which the characteristic reduction peak at 0.75 V was used to detect the response of the biosensor to indinavir. Results for indinavir biosensor constructed with 3-MPA-SnSe quantum dots are also reported in this thesis. The three biosensors systems were very sensitive towards indinavir; and gave low limits of detection (LOD) values of 3.22, 4.3 and 6.2 ng/mL for 3-MPA-SnSe, 3-MPA-PdTe and TGA-PdTe quantum dots biosensors, respectively. The LOD values are within the ‘maximum plasma concentration’ (Cmax) value of indinavir (5 - 15 ng/mL) normally observed 8 h after drug intake.
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Книги з теми "Tellurium cycling"

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Mountain biking Colorado's La Platas: Great rides between Durango and Telluride. Boulder, Colo: Pruett Pub. Co., 1995.

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Scarmuzzi, Don J. Telluride Trails: Hiking Passes, Loops, and Summits of Southwest Colorado. West Margin Press, 2013.

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Частини книг з теми "Tellurium cycling"

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Madhu Mohan, Varishetty, Madhavi Jonnalagadda, and VishnuBhotla Prasad. "Advanced Chalcogen Cathode Materials for Lithium-Ion Batteries." In Chalcogenides – Preparation and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103042.

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As on today the main power sources of lithium-ion batteries (LIBs) research developments gradually approach their theoretical limits in terms of energy density. Therefore, an alternative next-generation of power sources is required with high-energy densities, low cost, and environmental safety. Alternatively, the chalcogen materials such as sulfur, selenium, and tellurium (SSTs) are used due to their excellent theoretical capacities, low cost, and no toxicity. However, there will be some challenges to overcome such as sluggish reaction of kinetics, inferior cycling stability, poor conductivity of S, and “shuttle effect” of lithium polysulfides in the Li-S batteries. Hence, several strategies have been discussed in this chapter. First, the Al-SSTs systems with more advanced techniques are systematically investigated. An advanced separators or electrolytes are prepared with the nano-metal sulfide materials to reduce the resistance in interfaces. Layered structured cathodes made with chalcogen ligand (sulfur), polysulfide species, selenium- and tellurium-substituted polysulfides, Se1-xSx uniformly dispersed in 3D porous carbon matrix were discussed. The construction of nanoreactors for high-energy density batteries are discussed. Finally, the detailed classification of flexible sulfur, selenium, and tellurium cathodes based on carbonaceous (e.g., carbon nanotubes, graphene, and carbonized polymers) and their composite (polymers and inorganics) materials are explained.
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Sato, R., and T. Kimura. "Cyclic Sulfones." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00924.

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Sato, R., and T. Kimura. "Cyclic Sulfoximides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00929.

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Sato, R., and T. Kimura. "Cyclic Sulfonediimines." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00932.

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García-Ruano, J. L., M. B. Cid, A. M. Martín-Castro, and J. Alemán. "Cyclic Sulfoxides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00953.

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García-Ruano, J. L., M. B. Cid, A. M. Martín-Castro, and J. Alemán. "Cyclic Sulfimides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00997.

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Sato, R., and T. Kimura. "Cyclic Disulfides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01102.

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Sato, R., and T. Kimura. "Cyclic Polysulfides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01120.

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Shimizu, T., and N. Kamigata. "Cyclic Selenoxides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01393.

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Shimizu, T., and N. Kamigata. "Cyclic Selenimides." In Sulfur, Selenium, and Tellurium, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01396.

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Тези доповідей конференцій з теми "Tellurium cycling"

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Headings, Leon M., Gregory N. Washington, Shawn Midlam-Mohler, and Joseph P. Heremans. "High Temperature Multi-Fuel Combustion-Powered Thermoelectric Auxiliary Power Unit." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1290.

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With rising worldwide energy demands, there is a growing need for technologies which are able to utilize alternative forms and sources of energy as well as to reduce consumption. While energy storage technologies are rapidly advancing, they are not yet capable of matching the energy densities of combustible fuels. The internal combustion engine (ICE), coupled with a generator, is the predominant method of converting this chemical energy into electrical energy, yet the mechanical nature of this system presents performance limitations. An alternative being developed here is a combustion-powered thermoelectric generator (C-TEG) to directly convert the heat released from combustion into electricity. The solid-state nature of thermoelectric (TE) devices provides the attractive inherent benefits of reliability, fuel flexibility, controllability, and potential for power densities exceeding that of ICE/generator systems. While low material and device efficiencies have thus far limited the use of TEGs to niche applications, recently developed materials have more than doubled the TE figure of merit, a material parameter strongly influencing efficiency. The rapid rate of TE material advancements merits the parallel development of device technologies. Opportunities for a durable, multi-fuel, high power density generator make C-TEGs potential candidates for many consumer, industrial, and military power applications including automotive auxiliary power. Within the automotive field, C-TEGs may be applied in hybrid-electric vehicles to provide power during engine cycling or in conjunction with a TE waste heat recovery system to provide power on demand. With sufficient improvements in efficiency, C-TEGs may be used in plug-in hybrid-electric vehicles where the C-TEG serves as the range extender in lieu of an ICE/generator system. Another application is to provide auxiliary power in commercial vehicles. In this research, a baseline prototype was first constructed with a conventional heat exchange configuration, a commercial bismuth telluride module (maximum 225 °C), and a novel fuel atomizer. This prototype was used to develop and validate a computer simulator, identify the greatest opportunities for improvement, validate the use of the fuel atomizer with diesel fuel for TE power generation, and provide a baseline performance with which to compare system improvements. Subsequent improvements were made to increase combustion efficiency, reduce thermal losses, and characterize the heat exchangers at 500 °C for accurate simulation of the system performance with high performance lead telluride modules. In addition, multiple fuels were tested to verify multi-fuel capability and performance, and the use of a Pt/Pd combustion catalyst was tested to quantify improvements in heat exchange effectiveness.
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