气候变化领域集成服务门户(CCPortal): Direct observation of enhanced water and carbon dioxide reactivity on multivalent metal oxides and their composites

CCPortal

DOI	10.1039/c7ee00363c
	Direct observation of enhanced water and carbon dioxide reactivity on multivalent metal oxides and their composites
	Huang Y.-L.; Pellegrinelli C.; Geller A.; Liou S.-C.; Jarry A.; Wang L.; Yu Y.; Bluhm H.; Crumlin E.J.; Gaskell K.J.; Eichhorn B.W.; Wachsman E.D.
发表日期	2017
ISSN	17545692
起始页码	919
结束页码	923
卷号	10 期号:4
英文摘要	Electrochemical gas-solid reactions are important for many energy technologies, involving partial pressure dependent surface catalysis and bulk conduction phenomenon unresolvable using conventional techniques. We report for the first time water and CO2 reactivity on perovskites, fluorites, and their composites across a wide temperature- oxygen partial pressure (pO2) range by in situ gas phase isotopic oxygen exchange, demonstrating that multivalent metal oxides actively "breathe" oxygen from these gasses. We reveal the importance of cation oxidation state and the roles of electronic, ionic, and mixed conductor phases, as well as their composites. Moreover, we show that an ionic and electronic conducting oxide composite dramatically modifies the kinetics of oxygen exchange as compared to these materials individually or as compared to the effect of creating a composite from two mixed conducting oxides. © The Royal Society of Chemistry 2017.
英文关键词	Carbon; Ion exchange; Oxygen; Carbon dioxide reactivity; Conventional techniques; Direct observations; Energy technologies; Gas-solid reaction; Isotopic oxygen exchange; Mixed conducting oxides; Oxygen partial pressure; Carbon dioxide; carbon dioxide; chemical property; chemical reaction; composite; electrochemical method; fluorite; kinetics; metal; oxidation; oxide; oxygen; partial pressure; perovskite; temperature; water
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/190497
作者单位	University of Maryland Energy Research Center, University of Maryland, College Park, MD 20742, United States; Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States; AIMLab, Nano Center, University of Maryland, College Park, MD 20742, United States; Advanced Light Source at Lawrence Berkeley National LaboratoryCA, United States
推荐引用方式 GB/T 7714	Huang Y.-L.,Pellegrinelli C.,Geller A.,et al. Direct observation of enhanced water and carbon dioxide reactivity on multivalent metal oxides and their composites[J],2017,10(4).
APA	Huang Y.-L..,Pellegrinelli C..,Geller A..,Liou S.-C..,Jarry A..,...&Wachsman E.D..(2017).Direct observation of enhanced water and carbon dioxide reactivity on multivalent metal oxides and their composites.Energy & Environmental Science,10(4).
MLA	Huang Y.-L.,et al."Direct observation of enhanced water and carbon dioxide reactivity on multivalent metal oxides and their composites".Energy & Environmental Science 10.4(2017).