气候变化领域集成服务门户(CCPortal): Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon

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DOI	10.1126/science.aao5023
	Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon
	Upham D.C.; Agarwal V.; Khechfe A.; Snodgrass Z.R.; Gordon M.J.; Metiu H.; McFarland E.W.
发表日期	2017
ISSN	0036-8075
起始页码	917
结束页码	921
卷号	358 期号:6365
英文摘要	Metals that are active catalysts for methane (Ni, Pt, Pd), when dissolved in inactive low–melting temperature metals (In, Ga, Sn, Pb), produce stable molten metal alloy catalysts for pyrolysis of methane into hydrogen and carbon. All solid catalysts previously used for this reaction have been deactivated by carbon deposition. In the molten alloy system, the insoluble carbon floats to the surface where it can be skimmed off. A 27% Ni–73% Bi alloy achieved 95% methane conversion at 1065°C in a 1.1-meter bubble column and produced pure hydrogen without CO2 or other by-products. Calculations show that the active metals in the molten alloys are atomically dispersed and negatively charged. There is a correlation between the amount of charge on the atoms and their catalytic activity. © 2017, American Association for the Advancement of Science. All rights reserved.
英文关键词	carbon; gallium; hydrogen; indium; lead; metal; methane; nickel; palladium; platinum; tin; alloy; carbon; carbon dioxide; catalysis; catalyst; chemical reaction; correlation; hydrogen; metal; methane; pyrolysis; temperature effect; Article; catalyst; density functional theory; electrolysis; energy dispersive X ray spectroscopy; energy resource; melting temperature; priority journal; pyrolysis; radical reaction; steady state; stoichiometry; surface area; X ray fluorescence
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245804
作者单位	Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, United States; Department of Chemical Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India; Department of Chemical Engineering, University of California, Santa Barbara, CA 93106-5080, United States
推荐引用方式 GB/T 7714	Upham D.C.,Agarwal V.,Khechfe A.,et al. Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon[J],2017,358(6365).
APA	Upham D.C..,Agarwal V..,Khechfe A..,Snodgrass Z.R..,Gordon M.J..,...&McFarland E.W..(2017).Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon.Science,358(6365).
MLA	Upham D.C.,et al."Catalytic molten metals for the direct conversion of methane to hydrogen and separable carbon".Science 358.6365(2017).