IHEP OpenIR  > 北京同步辐射装置
Proton exchange membrane fuel cells powered with both CO and H-2
BSRF用户
2021
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume118Issue:43Pages:e2107332118
SubtypeArticle
AbstractThe CO electrooxidation is long considered invincible in the proton exchange membrane fuel cell (PEMFC), where even a trace level of CO in H-2 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, H-2, or a combination of the two. With a small amount of metal (24 mu g(metal).cm(-2)) used in the anode, the H-2 fuel cell performs its peak power density at 1.43 W.cm(-2). When operating with pure CO, this catalyst exhibits its maximum current density at 800 mA.cm(-2), 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.
DOI10.1073/pnas.2107332118
Indexed BySCI ; ADS
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000715115300010
ADS Bibcode2021PNAS..11807332W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2021PNAS..11807332W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2021PNAS..11807332W/citations
ItemNoBSRF00911
beamlineXAFS
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/293679
Collection北京同步辐射装置
Recommended Citation
GB/T 7714
BSRF用户. Proton exchange membrane fuel cells powered with both CO and H-2[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(43):e2107332118.
APA BSRF用户.(2021).Proton exchange membrane fuel cells powered with both CO and H-2.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(43),e2107332118.
MLA BSRF用户."Proton exchange membrane fuel cells powered with both CO and H-2".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.43(2021):e2107332118.
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