PtNi-W/C with Atomically Dispersed Tungsten Sites Toward Boosted ORR in Proton Exchange Membrane Fuel Cell Devices

Autor:	Huawei Wang, Jialong Gao, Changli Chen, Wei Zhao, Zihou Zhang, Dong Li, Ying Chen, Chenyue Wang, Cheng Zhu, Xiaoxing Ke, Jiajing Pei, Juncai Dong, Qi Chen, Haibo Jin, Maorong Chai, Yujing Li
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Fuel cells Membrane electrode assembly PGM catalyst Synergistic catalysis Oxygen reduction Technology
Zdroj:	Nano-Micro Letters, Vol 15, Iss 1, Pp 1-19 (2023)
Druh dokumentu:	article
ISSN:	2311-6706 2150-5551
DOI:	10.1007/s40820-023-01102-9
Popis:	Highlights A hybrid electrocatalyst consisting of PtNi-W alloy nanocrystals loaded on carbon surface with atomically dispersed W sites was realized. Single-atomic W formed protonic acid sites and established an extended proton transport network at the catalyst surface. Peak power density is enhanced by 64.4% compared to that with the commercial Pt/C catalyst in fuel cell as cathode at ultra-low loading of 0.05 mgPt cm−2.
Databáze:	Directory of Open Access Journals
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