Letteratura scientifica selezionata sul tema "Pt probe"
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Articoli di riviste sul tema "Pt probe":
Freitas, João R., Sara Pimenta, Diogo J. Santos, Bruno Esteves, Nuno M. Gomes e José H. Correia. "Flexible Neural Probe Fabrication Enhanced with a Low-Temperature Cured Polyimide and Platinum Electrodeposition". Sensors 22, n. 24 (10 dicembre 2022): 9674. http://dx.doi.org/10.3390/s22249674.
Xu, Zong Wei, Feng Zhou Fang e Xiao Tang Hu. "Fabrication of Carbon Nanotube Probes in Atomic Force Microscopy". Advanced Materials Research 76-78 (giugno 2009): 497–501. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.497.
Middleton, Christine. "Laser pulses probe quantum beats". Physics Today 75, n. 3 (1 marzo 2022): 18–20. http://dx.doi.org/10.1063/pt.3.4957.
Benka, Stephen. "Optical pump-probe diagnosis for melanoma?" Physics Today 64, n. 7 (luglio 2011): 18. http://dx.doi.org/10.1063/pt.3.1154.
Blau, Steven K. "An optical probe of quantum gravity?" Physics Today 65, n. 5 (maggio 2012): 19. http://dx.doi.org/10.1063/pt.3.1546.
Castanon, Elisa G., Alexander Fernández Scarioni, Hans W. Schumacher, Steve Spencer, Richard Perry, James A. Vicary, Charles A. Clifford e Héctor Corte-León. "Calibrated Kelvin-probe force microscopy of 2D materials using Pt-coated probes". Journal of Physics Communications 4, n. 9 (1 ottobre 2020): 095025. http://dx.doi.org/10.1088/2399-6528/abb984.
Zhukov, M. V., F. E. Komissarenko e A. M. Mozharov. "Kelvin probe force microscopy with high aspect ratio Pt/C nanowhisker probes". Journal of Physics: Conference Series 1135 (dicembre 2018): 012040. http://dx.doi.org/10.1088/1742-6596/1135/1/012040.
Li, Michelle S. M., Fraser P. Filice e Zhifeng Ding. "Submicron probes for scanning electrochemical microscopy". Canadian Journal of Chemistry 96, n. 3 (marzo 2018): 328–35. http://dx.doi.org/10.1139/cjc-2017-0611.
Day, Charles. "A new probe for a changing constant". Physics Today 68, n. 12 (dicembre 2015): 24. http://dx.doi.org/10.1063/pt.3.3007.
Pu, J., X. L. Hu, J. Liao, Y. W. Li, J. L. Qin, Y. L. Xie, C. G. Zhan, X. L. Yang e F. Liao. "Achievement of linear response for competitive bioaffinity assays of ligands: criteria of optimized interaction systems". RSC Advances 6, n. 112 (2016): 110858–65. http://dx.doi.org/10.1039/c6ra06426d.
Tesi sul tema "Pt probe":
Bagot, Paul A. J. "The effects of gaseous adsorption on Pt-alloy catalyst surfaces studied with 3D atom-probe". Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418816.
Zheldakov, Igor. "Ultrafast Photophysics and Photochemistry Of Hexacoordinated Bromides of Pt(IV), Os(IV), and, Ir(IV) in the Condensed Phase Studied by Femtosecond Pump-Probe Spectroscopy". Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1279998360.
Pressley, Daniel Lawrence. "Constellations : authorship and authority in Franz Kafka’s short prose". Thesis, University of Warwick, 2008. http://wrap.warwick.ac.uk/877/.
Kovchar, Jean. "Design, modeling, fabrication and characterization of a micro-device for the study of alternating flow - Application to energy harvesting and conversion". Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCD009.
This thesis focuses on the study of alternating flows within milli- and sub-millimeter-sized channels. The aim is to contribute to the optimization of a miniature (sub-millimeter dimensions) low-temperature (T < 200 °C) energy recovery and conversion machine based on the Stirling cycle principle. This is in line with the recovery of waste heat which is still not exploited in many industrial environments. In Stirling-type engines, the working fluid flows in alternating directions. Although these flows are fairly well understood on a macroscopic scale, very little is known about them on milli and sub-millimeter scales. However, a good understanding of this type of flow at these scales is essential for engine dimensioning and design. In order to contribute to the characterization of alternating flows at these small scales, channels with dimensions close to those of the miniature machine were produced using microfabrication technology. The channels produced have a hydraulic diameter ranging from 200 µm to 1 mm, an aspect ratio between 0.1 and 1, and two different channel lengths (25 mm and 50 mm). Channels with bends were also built to study their influence on flow characteristics. These channels were then implemented on the experimental bench. Initially, the study focused on the characterization of permanent flows, in the Reynolds range from 15 to 510, whose results, in agreement with those from the literature, served as a reference for the study of alternating flows, carried out in a second step with a Womersley number ranging from 0.02 to 0.67. The characterization of alternating flows has shown that the aspect ratio and the hydraulic diameter of the channels affect the flow significantly. On the other hand, this thesis has shown that the influence of channel length and the presence of singularities (bends) on the flow characteristics do not appear to be as decisive as expected. Consequently, among the parameters tested in this thesis, the aspect ratio and hydraulic diameter of the channels are important parameters to take into account for the design of the micro Stirling machine, especially to avoid impacting considerably its efficiency
Ford, Alison. "Klaus Mann and the Weimar Republic : literary tradition and experimentation in his prose, 1924-1933". Thesis, University of Nottingham, 1999. http://eprints.nottingham.ac.uk/11719/.
Johnson, Mark Oliver. "A poetics of dwelling : the prose work of Botho Strauß and late thought of Martin Heidegger". Thesis, University of Birmingham, 2005. http://etheses.bham.ac.uk//id/eprint/219/.
Praetorius, Christian Michael [Verfasser], Kai [Gutachter] Fauth e Ralph [Gutachter] Claessen. "Ce M4,5 XAS and XMCD as Local Probes for Kondo and Heavy Fermion Materials - A Study of CePt5/Pt(111) Surface Intermetallics - / Christian Michael Praetorius. Gutachter: Kai Fauth ; Ralph Claessen". Würzburg : Universität Würzburg, 2016. http://d-nb.info/1111785783/34.
XIE, XIAN-GUI, e 謝現貴. "Probe DNA damage and repair by antibodies against cis-Pt-DNA adducts". Thesis, 1990. http://ndltd.ncl.edu.tw/handle/71238972580856721992.
Mai, Chen-Fu, e 麥真富. "On the Adsorption of Formaldehyde at Pt(111) and Pt(100) Electrodes: as Probed with Voltammetry and Scanning Tunneling Microscopy". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/22583973075476609436.
國立中央大學
化學研究所
92
Abstract This thesis is divided into four parts. First, the adsorption of formaldehyde (HCHO)、methanol(CH3OH) and formic acid (HCOOH) on Pt(111) and Pt(100) electrode surfaces was examined with cyclic voltammetry and in situ scanning tunneling microscope (STM) in 0.1 M HClO4. Ⅰ. Methanol on Pt(111) and Pt(100) The adsorption of methanol on Pt(111) electrode is so weak that experimental parameters such as supporting electrolyte and potential strongly affect the coverage and structures of methanol ad-molecules. For example, the coverage of methanol was less than one tenth of a monolayer within the potential region of 0.1 and 0.3 V in 0.1 M HClO4. Methanol ad-molecules were adsorbed randomly, producing island-like aggregations. The coverage of methanol indeed increased with more positive potentials, but no ordered structure was identified by high-resolution STM imaging. In contrast, STM molecular resolution reveals the formation of a highly ordered adlattice of (Ö2 ´ Ö2)R45° at 0.32 V in 0.1 M HClO4 upon the addition of methanol into the STM cell. This square lattice contains equally bright protrusions separated by a nearest neighbor spacing of 4 Å. These protrusions are likely to be methoxy (CH3) produced from dehydrogenation of methanol molecules upon their adsorption on Pt(100). This ordered array was gradually eliminated upon stepping potential positively to 0.5 V. Meanwhile, high resolution STM imaging shows the appearance of Pt(100) substrate lattice, suggesting that all methoxy species were completely oxidized to CO2. Formaldehyde on Pt(111) and Pt(100) In dilute (1 mM) HCHO, no adsorption was noted at both Pt electrodes in 0.1 M HClO4. Electroxidation of the hydrated formaldehyde, methylene glycol, and methanol produced peaks near 0.4 and 0.6 V in the voltammograms for both electrodes. Formyl like ad-species were adsorbed on both electrodes when [HCHO] ³ 10 mM. These adsorbates caused some delays in the electroxidation of methylene glycol, the predominant molecular form in aqueous formaldehyde solutions. This phenomenon is particularly pronounced for Pt(100), where the onset of oxidation shifted from 0.4 to 0.6 V for Pt(100) at a scan rate of 10 mV/s. The peak current due to electroxidation of methylene glycol on Pt(100) was nearly three times higher than that of Pt(111), indicating that the former was a more efficient catalyst for this reaction. High-quality in situ STM molecular resolution revealed highly ordered structures, identified as (Ö7 ´ Ö7)R19.1° and c(2 ´ 2), on Pt(111) and Pt(100), respectively, in the potential region between 0.1 and 0.3 V. The adsorption of hydrogen adatoms predominated to displace these two ordered arrays at negative potentials. The effect of potential on the adlayer was imaged by in situ STM, revealing high activity at step defects at low potential polarization, but a more universal reaction scheme at high polarization. These changes were reversible with respect to potential, i.e. ordered structures emerged again at more negative potentials. Formic acid on Pt(111) and Pt(100) The adsorption of formic acid on Pt(111) electrode surfaces was only partial in 0.1 M HClO4 , as revealed by the formation of islands on terraces. High resolution STM imaging reveals the each molecule appeared as a pair of bright spots, suggesting formic acid molecules were adsorbed via its two oxygen in the carboxylic acid group. The ordered structure is characterized as (2 ´ 2) with an intermolecular spacing of 5.6. The effect of scan rate on the morphology of the i-E profile was examined to elucidate the kinetics HCOOH electroxidation. Both positive and negative scans produce pronounced anodic current at potentials between 0.05 and 0.9 V. However, increasing scan rates from 50 to 500 mV/s produced marked differences between the profiles between 0.2 and 0.35 V, where protons discharge. Since the typical hydrogen features is observed at a 500 mV/s scan rate but not at 50 mV/s scan rate, it seems that the adsorption of formic acid was slower than that of hydrogen atoms. Ⅱ. Pb electrodeposition on Pt(111) Underpotential deposition of Pb adatoms results in patches of ordered structures, identified as (2´Ö3), on Pt(111) electrode. Deposition of Pb adatoms preferentially occurs at step edges, followed by lateral expansion of nucleation seeds as more Pb adatoms were deposited. However, the structure of Pb adatoms remained unchanged with deposition of Pb. Ⅲ. The adsorption of carbon monoxide on Pt(111) The goal of conducting in situ STM imaging of carbon monoxide on Pt(111) was to examine the stability of Pt electrodes and mobility of Pt atoms in CO-saturated perchloric acid. The potential of Pt(111) was set at 0.1 V, at which an ordered structure, characterized as (2 ´ 2), q = 0.75 ML, was imaged. Time-dependent STM images reveal that the adsorption of CO molecules yielded relocations of Pt atoms from near step ledges to terraces. STM shows that nearly all step ledges, irrespective of their orientation, became greatly zigzag, along with aggregation of Pt atoms into monoatomic high islands. It seems that the adsorption of CO molecules substantially reduced the binding energy, or greatly increased the mobility of Pt atoms located at step ledges. Ⅳ. The electroxidation of Pt(111) In situ STM was used to examine the restructuring of Pt surface induced by anodic oxidation at potentials positive of 1.6 V. This experiment was performed by conducting potential sweeping between 0 and 1.6 V. Topographic STM scans reveal terrace and step structures seen initially at Pt(111) electrode was nearly unchanged, but a high density of pits and islands were produced by the potential sweeping process. High resolution STM imaging was possible to discern an ordered Pt(111) atomic arrays on not only on terraces, but also on islands. It appears that anodic oxidation of Pt electrode caused displacement of Pt atoms from terraces, rather than steps. The present STM results clearly illustrate that the electric field at E > 1.6 V was strong enough to induce place-exchange between Pt and oxygen atoms. The numbers of islands and pits on terraces increased sharply with the numbers of potential cycling between 0 and 1.6 V.
Tu, Hsin-Ling, e 杜欣霖. "Cu electrodeposition on thiol-modified Pt(111) and UPD Cu/Pt(111) single crystal electrodes as probed by EC-STM". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/02545321321018151023.
國立中央大學
化學研究所
99
In situ scanning tunneling microscopy (STM) and cyclic voltammetry (CV) have been used to examine the effect of 3-mercaptopropanesulfonate (MPS) and bis-3-sodiumsulfopropyldi-sulfide (SPS) on the electrodeposition of copper onto a well-ordered single crystalline electrodes of Pt(111) in 0.1 M HClO4. In situ STM imaging reveals atomically flat surface morphology of copper films deposited on ordered Pt(111) electrode, implying layer-by-layer growth mode of Cu in 0.1 M HClO4 + 1 mM Cu(ClO4)2 + 1 mM KCl. However, it implied islands growth mode of Cu with MPS or SPS-modified Pt(111). The MPS or SPS admolecules were adsorbed upright on Pt(111). The cyclic voltammetric results show that the MPS or SPS adlayer on Pt(111) would inhibit Cu deposition because the addition of MPS or SPS to the electrolyte of 0.1 M HClO4 + 1 mM KCl + 1 mM Cu(ClO4)2 reduced the amount of the Cu deposit, even in the presence of chloride. For MPS-modified and Cu-coated Pt(111) electrodes system, Cu film grew in smooth flakelike morphology. The deposition rate is 3D > 2D. The MPS admolecules readily formed a highly ordered molecular structure identified as (4 ×2 √3)rect on Pt(111) precoated with a monolayer of Cu adatoms and a ordered structure identified as (2 ×2) on thicker layers of Cu adatoms. For SPS-modified and Cu-coated Pt(111) electrodes system, Cu film also grew in flakelike morphology. But the processes of SPS adsorption varied greatly with the structures of the electrified interface of Pt(111) at 0.4 and 0.2 V (vs. Ag/AgCl), where Cu adatoms and chloride anions were coadsorbed in highly ordered arrays. The Cu-coated Pt(111) electrode was then exposed to a dosing solution containing SPS. In situ STM imaging revealed that the (4 × 4) - Cu + Cl bidlayer produced at 0.4 V was completely displaced by SPS molecules, resulting in MPS molecules adsorbed randomly on the Pt(111) electrode and cupric cations dissolving in the electrolyte. Incontrast, the Pt(111) - (√7 × √7)R19.1°–Cu + Cl structure produced at 0.2 V wasstable against the subsequently deposited SPS molecules, yielding locally ordered (4 × 4) –SPS structures residing on the Cu + Cl bilayer. With an overpotential η< 100 mV, bulk Cu deposition proceeded slowly and built up the Cu film in layers. Each Cu layer appeared to be atomically smooth and arranged in an ordered structure. Intriguingly, the second Cu layer was unique, because it adapted a square-like lattice, tentatively attributed to MPS molecules residing atop a pseudo Cu(100) network. As the Cu deposit thickened, in situ STM revealed a (2 × 2) structure, attributable to MPS admolecules sitting on a hexagonal Cu(111) lattice. MPS molecules could be produced by the reduction of SPS. Copper, chloride and MPS or SPS all need to be in a specific ratio and MPS or SPS-modified on Cu-coated Pt(111) electrode so that could accelerate Cu deposition. If MPS or SPS modified on Pt(111) even if at the specific ratio, the result will be inhibited the Cu deposition.
Libri sul tema "Pt probe":
2, Art Recess, a cura di. A Poet In Center City Pt. 2: (from A Poet In Center City Pt. 2 on Art Recess 2). Conshohocken, Pa: Art Recess 2, 2013.
Room, Red, a cura di. A Poet In Center City Pt. 2: (A Poet In Center City Preface in Red Room, 8-10-14). California, USA: Red Room, 2014.
Alfano, R. R. Semiconductors Probed by Ultrafast Laser Spectroscopy Pt II. Elsevier Science & Technology Books, 2012.
Alfano, R. R. Semiconductors Probed by Ultrafast Laser Spectroscopy Pt I. Elsevier Science & Technology Books, 2012.
A Poet In Center City Pt. 2. San Francisco, USA: Internet Archive, 2013.
Hardie, William Ross 1862-1916. Latin Prose Composition, Comprising: Pt. 1. Notes on Grammar, Style, and Idiom. Pt. 2. English Passages for Translation Into Latin. Franklin Classics Trade Press, 2018.
Hardie, William Ross 1862-1916. Latin Prose Composition, Comprising: Pt. 1. Notes on Grammar, Style, and Idiom. Pt. 2. English Passages for Translation into Latin. Creative Media Partners, LLC, 2018.
Woodruff, Frank Edward. Key to New Greek Prose Composition: Pt. 1. Based upon the Anabasis, Books I and Ii... Creative Media Partners, LLC, 2022.
Skupio, Rafał. Zastosowanie nieinwazyjnych pomiarów rdzeni wiertniczych do zwiększenia informacji na temat parametrów skał zbiornikowych. Instytut Nafty i Gazu - Państwowy Instytut Badawczy, 2022. http://dx.doi.org/10.18668/pn2022.237.
Capitoli di libri sul tema "Pt probe":
Sauer, D. E., R. L. Borup e E. M. Stuve. "Electrocatalysis of Formic Acid and Carbon Monoxide with Probe Adlayers of Carbon and Ethylidyne on Pt(111)". In ACS Symposium Series, 283–96. Washington, DC: American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0656.ch020.
Chen, C. Julian. "Overview". In Introduction To Scanning Tunneling Microscopy, 1–50. Oxford University PressNew York, NY, 1993. http://dx.doi.org/10.1093/oso/9780195071504.003.0001.
Chakraborty, Amrita, Mohammad Al-Mamun e Marius Orlowski. "Inertness and Other Properties of Thin Ruthenium Electrodes in ReRAM Applications". In Ruthenium - Materials Properties, Device Characterizations, and Advanced Applications [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110531.
Belskaya, Olga B., Irina G. Danilova, Maxim O. Kazakov, Roman M. Mironenko, Alexander V. Lavrenov e Vladimir A. Likholobov. "FTIR Spectroscopy of Adsorbed Probe Molecules for Analyzing the Surface Properties of Supported Pt (Pd) Catalysts". In Infrared Spectroscopy - Materials Science, Engineering and Technology. InTech, 2012. http://dx.doi.org/10.5772/36275.
Larsson, Mikael, Bengt Andersson, Odd Arne Bariås e Anders Holmen. "The use of the H2-D2 equilibration reaction as a probe reaction to study the deactivation on Pt/Al2O3 and Pt-Sn/Al2O3 catalysts during propane dehydrogenation". In Catalyst Deactivation 1994, Proceedings of the 6th International Symposium, 233–40. Elsevier, 1994. http://dx.doi.org/10.1016/s0167-2991(08)62745-7.
Atti di convegni sul tema "Pt probe":
Nielsen, Emil Gorm. "Probe pT-dependent flow vector fluctuations with ALICE". In The Eighth Annual Conference on Large Hadron Collider Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.382.0207.
Nielsen, Emil Gorm. "Probe pT-dependent flow vector fluctuations with ALICE". In The Eighth Annual Conference on Large Hadron Collider Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.382.0207.
Saitoh, Shiroh, Tsuyoshi Kobayashi, Senji Shimanuki e Yohachi Yamashita. "Single-element ultrasonic probe using PZN-PT single crystal". In Medical Imaging 1997, a cura di K. Kirk Shung. SPIE, 1997. http://dx.doi.org/10.1117/12.271333.
Hong, Yong K., Sung Q. Lee, Eun Kyoung Kim, Kang Ho Park e Kee S. Moon. "PMN-PT piezoelectric near field optical probe for data storage". In Optics East 2006, a cura di Yukitoshi Otani e Farrokh Janabi-Sharifi. SPIE, 2006. http://dx.doi.org/10.1117/12.689527.
Strickland, Michael. "Using bottomonium production as a tomographic probe of the quark-gluon plasma". In 13th International Workshop in High pT Physics in the RHIC and LHC Era. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.355.0020.
Darcie, Todd, e J. Stewart Aitchison. "Non-Reciprocity-Based Integrated Biosensing In PT Symmetric Coupled Resonators". In CLEO: Science and Innovations. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_si.2023.sf2e.2.
Akutsu, Haruko, Hiroshi Uchida, Kazuhiko Nakamura, Toshihiko Iinuma e Kyoichi Suguro. "New Finding of Pt Segregation at the NiSi/Si Interface by Atom Probe". In 2007 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2007. http://dx.doi.org/10.7567/ssdm.2007.f-3-6l.
MORII, T., Y. B. DONG e T. YAMANISHI. "SEMI-INCLUSIVE LARGE-PT LIGHT HADRON PAIR PRODUCTION AS A PROBE OF POLARIZED GLUONS". In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777218_0054.
Zhang, Li, James A. Bain, Jian-Gang Zhu, Leon Abelmann e Takahiro Onoue. "The Role of STM Tip Shape in Heat Assisted Magnetic Probe Recording on CONI/PT Film". In ASME 2004 3rd Integrated Nanosystems Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/nano2004-46057.
Okano, Yuuki, Masato Ooishi, Atsushi Ohma, Kazuyoshi Fushinobu e Ken Okazaki. "Potential Distribution Measurement in PEFC Electrolyte Membrane for Membrane Degradation Analysis". In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22510.
Rapporti di organizzazioni sul tema "Pt probe":
Vitus, C. M., S. C. Chang, B. C. Schardt e M. J. Weaver. In-Situ Scanning Tunneling Microscopy as a Probe of Adsorbate-Induced Reconstruction at Ordered Monocrystalline Electrodes: CO on Pt(100). Fort Belvoir, VA: Defense Technical Information Center, ottobre 1991. http://dx.doi.org/10.21236/ada241794.
Brossia. L52119 Comparative Consumption Rates of Impressed Current Cathodic Protection Anodes. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), gennaio 2004. http://dx.doi.org/10.55274/r0010953.