气候变化领域集成服务门户(CCPortal): Electrochemical reduction of CO2 to synthesis gas with controlled CO/H2 ratios

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DOI	10.1039/c7ee00071e
	Electrochemical reduction of CO2 to synthesis gas with controlled CO/H2 ratios
	Sheng W.; Kattel S.; Yao S.; Yan B.; Liang Z.; Hawxhurst C.J.; Wu Q.; Chen J.G.
发表日期	2017
ISSN	17545692
起始页码	1180
结束页码	1185
卷号	10 期号:5
英文摘要	The electrochemical carbon dioxide reduction reaction (CO2RR) to simultaneously produce carbon monoxide (CO) and hydrogen (H2) has been achieved on carbon supported palladium (Pd/C) nanoparticles in an aqueous electrolyte. The synthesis gas product has a CO to H2 ratio between 0.5 and 1, which is in the desirable range for thermochemical synthesis of methanol and Fischer-Tropsch reactions using existing industrial processes. In situ X-ray absorption spectroscopy in both near-edge (XANES) and extended regions (EXAFS) and in situ X-ray diffraction show that Pd has transformed into β-phase palladium hydride (β-PdH) during the CO2RR. Density functional theory (DFT) calculations demonstrate that the binding energies of both adsorbed CO and H are significantly weakened on PdH than on Pd surfaces, and that these energies are potential descriptors to facilitate the search for more efficient electrocatalysts for syngas production through the CO2RR. © 2017 The Royal Society of Chemistry.
英文关键词	Binding energy; Carbon dioxide; Carbon monoxide; Density functional theory; Electrocatalysts; Electrolytes; Electrolytic reduction; Fischer-Tropsch synthesis; Pollution control; Synthesis gas; X ray absorption spectroscopy; X ray diffraction; Aqueous electrolyte; Carbon dioxide reduction; Carbon supported palladiums; Electrochemical reductions; Fischer-Tropsch reaction; In-situ X-ray absorption spectroscopy; In-situ X-ray diffraction; Industrial processs; Reduction; absorption; aqueous solution; carbon dioxide; carbon monoxide; catalyst; chemical binding; diffraction; electrochemistry; hydrogen; methanol; palladium; thermochemistry
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190555
作者单位	Department of Chemical Engineering, Columbia University, New York, NY 10027, United States; Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, United States; Material Science and Engineering, Stony Brook University, Stony Brook, NY 11794, United States
推荐引用方式 GB/T 7714	Sheng W.,Kattel S.,Yao S.,et al. Electrochemical reduction of CO2 to synthesis gas with controlled CO/H2 ratios[J],2017,10(5).
APA	Sheng W..,Kattel S..,Yao S..,Yan B..,Liang Z..,...&Chen J.G..(2017).Electrochemical reduction of CO2 to synthesis gas with controlled CO/H2 ratios.Energy & Environmental Science,10(5).
MLA	Sheng W.,et al."Electrochemical reduction of CO2 to synthesis gas with controlled CO/H2 ratios".Energy & Environmental Science 10.5(2017).