Výsledky vyhledávání - "Sonja A. Francis"

Reduction of Aqueous CO2 to 1-Propanol at MoS2 Electrodes

Autor: Bruce S. Brunschwig, Kimberly M. Papadantonakis, Ivonne M. Ferrer, Jesus M. Velazquez, Xinghao Zhou, Dan Guevarra, Forrest P. Hyler, Jimmy John, Matthew T. McDowell, Sonja A. Francis, Nathan S. Lewis, Fadl H. Saadi, Daniel A. Torelli, Matthias H. Richter, Ke Sun

Publikováno v: Chemistry of Materials. 30:4902-4908

Reduction of carbon dioxide in aqueous electrolytes at single-crystal MoS_2 or thin-film MoS_2 electrodes yields 1-propanol as the major CO_2 reduction product, along with hydrogen from water reduction as the predominant reduction process. Lower leve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aea06b41d1d2cd8893e10fcbfde3d84
https://doi.org/10.1021/acs.chemmater.7b04428

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Solar-Driven Reduction of 1 atm CO 2 to Formate at 10% Energy-Conversion Efficiency by Use of a TiO 2 -Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst

Autor: Sonja A. Francis, Erik Verlage, Yikai Chen, Ke Sun, Rui Liu, Chengxiang Xiang, Xinghao Zhou, Nathan S. Lewis

Publikováno v: ECS Transactions. 77:31-41

A solar-driven CO2 reduction (CO2R) cell was constructed, consisting of a tandem GaAs/InGaP/TiO2/Ni photoanode in 1.0 M KOH(aq) (pH = 13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO3(a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df9893a3c48071d63d5670d2758e619e
https://doi.org/10.1149/07704.0031ecst

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Solar-Driven Reduction of 1 atm of CO2 to Formate at 10% Energy-Conversion Efficiency by Use of a TiO2-Protected III–V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode

Autor: Xinghao Zhou, Rui Liu, Erik Verlage, Ke Sun, Nathan S. Lewis, Chengxiang Xiang, Sonja A. Francis, Yikai Chen

Publikováno v: ACS Energy Letters. 1:764-770

A solar-driven CO_2 reduction (CO_2R) cell was constructed, consisting of a tandem GaAs/InGaP/TiO_2/Ni photoanode in 1.0 M KOH(aq) (pH = 13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8948a44f52aaec80196356ae3e99770c
https://doi.org/10.1021/acsenergylett.6b00317

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Nickel–Gallium-Catalyzed Electrochemical Reduction of CO2 to Highly Reduced Products at Low Overpotentials

Autor: Nathan S. Lewis, Jonathan R. Thompson, Bruce S. Brunschwig, J. Chance Crompton, Manuel P. Soriaga, Daniel A. Torelli, Sonja A. Francis, Alnald Javier

Publikováno v: ACS Catalysis. 6:2100-2104

We report the electrocatalytic reduction of CO2 to the highly reduced C2 products, ethylene and ethane, as well as to the fully reduced C1 product, methane, on three different phases of nickel–gallium (NiGa, Ni3Ga, and Ni5Ga3) films prepared by dro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9a37710c04900bdaf64383aa409e227
https://doi.org/10.1021/acscatal.5b02888

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The Predominance of Hydrogen Evolution on Transition Metal Sulfides and Phosphides under CO2 Reduction Conditions: An Experimental and Theoretical Study

Autor: A. L. Landers, Thomas R. Hellstern, Thomas F. Jaramillo, Christopher Hahn, Meredith Fields, Jakob Kibsgaard, Daniel A. Torelli, Charlie Tsai, Nathan S. Lewis, Jianping Xiao, Karen Chan, Sonja A. Francis

Publikováno v: Landers, A T, Fields, M, Torelli, D A, Xiao, J, Hellstern, T R, Francis, S A, Tsai, C, Kibsgaard, J, Lewis, N S, Chan, K, Hahn, C & Jaramillo, T F 2018, ' The Predominance of Hydrogen Evolution on Transition Metal Sulfides and Phosphides under CO 2 Reduction Conditions: An Experimental and Theoretical Study ', ACS Energy Letters, vol. 3, no. 6, pp. 1450-1457 . https://doi.org/10.1021/acsenergylett.8b00237

A combination of experiment and theory has been used to understand the relationship between the hydrogen evolution reaction (HER) and CO2 reduction (CO2R) on transition metal phosphide and transition metal sulfide catalysts. Although multifunctional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a77aa760dde02d42c1ab9209de21c89
https://orbit.dtu.dk/en/publications/f74916a3-a8c5-4af9-96af-7c4a99078a92

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Methods for comparing the performance of energy-conversion systems for use in solar fuels and solar electricity generation

Autor: Shawn Chatman, Nathan S. Lewis, Matthew T. McDowell, Sonja A. Francis, Victoria Dix, Robert H. Coridan, Adam C. Nielander

Publikováno v: BASE-Bielefeld Academic Search Engine

The energy-conversion efficiency is a key metric that facilitates comparison of the performance of various approaches to solar energy conversion. However, a suite of disparate methodologies has been proposed and used historically to evaluate the effi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69f1d68d771f86f9152b63eab9091753
https://doi.org/10.1039/c5ee00777a

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Low Pt-loading Ni–Pt and Pt deposits on Ni: Preparation, activity and investigation of electronic properties

Autor: Steven H. Bergens, Sonja A. Francis

Publikováno v: Journal of Power Sources. 196:7470-7480

A unique, self-limiting, galvanostatic deposition was used to synthesize co-deposits of Ni and Pt onto nickel substrates from sonicated solutions of 0.2 M NiCl 2 in 2.0 M NH 4 Cl, with a platinum blacked counter electrode as the sole platinum source.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::450edf5f0cac8cb1fd2f11ab1485dac2
https://doi.org/10.1016/j.jpowsour.2011.05.011

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A taxonomy for solar fuels generators

Autor: Kimberly M. Papadantonakis, Matthew R. Shaner, Nathan S. Lewis, Adam C. Nielander, Sonja A. Francis

A number of approaches to solar fuels generation are being developed, each of which has associated advantages and challenges. Many of these solar fuels generators are identified as “photoelectrochemical cells” even though these systems collective

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efad7dfb668703cdbe41985ee94ac3ba
https://resolver.caltech.edu/CaltechAUTHORS:20141008-080542214

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Glancing angle deposited Ni nanopillars coated with conformal, thin layers of Pt by a novel electrodeposition: application to the oxygen reduction reaction

Autor: Michael J. Brett, Shuai Xu, Chao Wang, Steven H. Bergens, Jason B. Sorge, Sonja A. Francis, Ryan T. Tucker, Reza B. Moghaddam

Glancing Angle Deposition (GLAD) was used to prepare 500 nm long Ni nanopillars directly on glassy carbon disc electrodes (Ni GLAD /GC). Ni GLAD {Pt}/GC core-layer nanopillars were prepared by depositing Pt on the Ni GLAD substrate via a novel rotati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e60f69a217ce0eabb61a2a69494a2c66
https://nrc-publications.canada.ca/eng/view/object/?id=73d45998-5571-4152-9bb2-3344d25bed81

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