气候变化领域集成服务门户(CCPortal): Voltage cycling process for the electroconversion of biomass-derived polyols

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DOI	10.1073/pnas.2113382118
	Voltage cycling process for the electroconversion of biomass-derived polyols
	Kim D.; Zhou C.; Zhang M.; Cargnello M.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:41
英文摘要	Electrification of chemical reactions is crucial to fundamentally transform our society that is still heavily dependent on fossil resources and unsustainable practices. In addition, electrochemistry-based approaches offer a unique way of catalyzing reactions by the fast and continuous alteration of applied potentials, unlike traditional thermal processes. Here, we show how the continuous cyclic application of electrode potential allows Pt nanoparticles to electrooxidize biomass-derived polyols with turnover frequency improved by orders of magnitude compared with the usual rates at fixed potential conditions. Moreover, secondary alcohol oxidation is enhanced, with a ketoses-to-aldoses ratio increased up to sixfold. The idea has been translated into the construction of a symmetric single-compartment system in a two-electrode configuration. Its operation via voltage cycling demonstrates high-rate sorbitol electrolysis with the formation of H2 as a desired coproduct at operating voltages below 1.4 V. The devised method presents a potential approach to using renewable electricity to drive chemical processes. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Electroconversion; platinum; polyols; voltage cycling
语种	英语
scopus关键词	alcohol; aldose; erythritol; glycerol; ketose; monosaccharide; platinum nanoparticle; polyol; ribitol; sorbitol; unclassified drug; adsorption; alcohol oxidation; Article; biomass; catalysis; chronoamperometry; controlled study; current density; cyclic voltammetry; dehydrogenation; electric potential; electrical parameters; electrical potential parameters; electricity; electrochemical potential cycling; electrode potential; electrolysis; electrooxidization; oxidation; renewable energy; surface area; voltage cycling process
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238341
作者单位	Department of Chemical Engineering, Stanford University, Stanford, CA 94305, United States; Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, CA 94305, United States
推荐引用方式 GB/T 7714	Kim D.,Zhou C.,Zhang M.,et al. Voltage cycling process for the electroconversion of biomass-derived polyols[J],2021,118(41).
APA	Kim D.,Zhou C.,Zhang M.,&Cargnello M..(2021).Voltage cycling process for the electroconversion of biomass-derived polyols.Proceedings of the National Academy of Sciences of the United States of America,118(41).
MLA	Kim D.,et al."Voltage cycling process for the electroconversion of biomass-derived polyols".Proceedings of the National Academy of Sciences of the United States of America 118.41(2021).