气候变化领域集成服务门户(CCPortal): Proton exchange membrane fuel cells powered with both CO and H2

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DOI	10.1073/pnas.2107332118
	Proton exchange membrane fuel cells powered with both CO and H2
	Wang X.; Li Y.; Wang Y.; Zhang H.; Jin Z.; Yang X.; Shi Z.; Liang L.; Wu Z.; Jiang Z.; Zhang W.; Liu C.; Xing W.; Ge J.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:43
英文摘要	The CO electrooxidation is long considered invincible in the proton exchange membrane fuel cell (PEMFC), where even a trace level of CO in H2 seriously poisons the anode catalysts and leads to huge performance decay. Here, we describe a class of atomically dispersed IrRu-N-C anode catalysts capable of oxidizing CO, H2, or a combination of the two. With a small amount of metal (24 μgmetalcm22) used in the anode, the H2 fuel cell performs its peak power density at 1.43 Wcm22. When operating with pure CO, this catalyst exhibits its maximum current density at 800 mAcm22, while the Pt/C-based cell ceases to work. We attribute this exceptional catalytic behavior to the interplay between Ir and Ru single-atom centers, where the two sites act in synergy to favorably decompose H2O and to further facilitate CO activation. These findings open up an avenue to conquer the formidable poisoning issue of PEMFCs. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Antipoisoning; Fuel cell; Hydrogen oxidation reaction; Single atomic sites synergy
语种	英语
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/238331
作者单位	State Key Laboratory of Electroanalytic Chemistry, Jilin Province Key Laboratory of Low Carbon Chemistry Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China; Shanghai Institute of Applied Physics, University of Chinese Academy of Sciences, Beijing, 100049, China; Shanghai Synchrotron Radiation Facility, Zhangjiang National Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China; Electron Microscopy Center, Key Laboratory of Automobile Materials Ministry of Education, School of Materials Science & Engineering, Jilin University, Changchun, China
推荐引用方式 GB/T 7714	Wang X.,Li Y.,Wang Y.,et al. Proton exchange membrane fuel cells powered with both CO and H2[J],2021,118(43).
APA	Wang X..,Li Y..,Wang Y..,Zhang H..,Jin Z..,...&Ge J..(2021).Proton exchange membrane fuel cells powered with both CO and H2.Proceedings of the National Academy of Sciences of the United States of America,118(43).
MLA	Wang X.,et al."Proton exchange membrane fuel cells powered with both CO and H2".Proceedings of the National Academy of Sciences of the United States of America 118.43(2021).