气候变化领域集成服务门户(CCPortal): Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure

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DOI	10.1126/science.aaz9139
	Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure
	Wu Y.; Zhu B.; Huang M.; Liu L.; Shi Q.; Akbar M.; Chen C.; Wei J.; Li J.F.; Zheng L.R.; Kim J.S.; Song H.B.
发表日期	2020
ISSN	10959203
起始页码	184
结束页码	188
卷号	369 期号:6500
英文摘要	Tuning a semiconductor to function as a fast proton conductor is an emerging strategy in the rapidly developing field of proton ceramic fuel cells (PCFCs). The key challenge for PCFC researchers is to formulate the proton-conducting electrolyte with conductivity above 0.1 siemens per centimeter at low temperatures (300 to 600°C). Here we present a methodology to design an enhanced proton conductor by means of a Na x CoO2/CeO2 semiconductor heterostructure, in which a field-induced metallic state at the interface accelerates proton transport. We developed a PCFC with an ionic conductivity of 0.30 siemens per centimeter and a power output of 1 watt per square centimeter at 520°C. Through our semiconductor heterostructure approach, our results provide insight into the proton transport mechanism, which may also improve ionic transport in other energy applications. Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
语种	英语
来源机构	Science (New York, N.Y.)
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133361
推荐引用方式 GB/T 7714	Wu Y.,Zhu B.,Huang M.,et al. Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure[J]. Science (New York, N.Y.),2020,369(6500).
APA	Wu Y..,Zhu B..,Huang M..,Liu L..,Shi Q..,...&Song H.B..(2020).Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure.,369(6500).
MLA	Wu Y.,et al."Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure".369.6500(2020).