Hierarchically Ordered Macro-/Mesoporous N,P-Codoped Carbon with Fe-Co Dual Sites for Efficient Electrocatalytic Oxygen Reduction.

IF 3.5 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemistry - An Asian Journal Pub Date : 2025-02-23 DOI:10.1002/asia.202401761

Fulin Li, Jing Dong, Tingting Sun, Pianpian Zhang, Yixin Zhang, Anvar A Zakhidov, Ray H Baughman, Lianbin Xu

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Abstract

The development of high-performance, low-cost non-precious-metal electrocatalysts as alternatives to Pt-based catalysts for the oxygen reduction reaction (ORR) is crucial for promoting the commercial application of fuel cells and metal-air batteries. In this work, we report a novel type of ORR electrocatalyst with Fe and Co sites anchored on N,P-codoped hierarchically ordered macro-/mesoporous carbon (FeCo/NP-HOMMC) through a facile one-pot, controllable synthesis method with the aid of dual-templating technique. The FeCo/NP-HOMMC catalyst shows robust ORR performance under alkaline conditions with a half-wave potential (E_1/2) of 0.90 V vs. reversible hydrogen electrode (RHE), significantly surpassing the commercial 20 wt% Pt/C catalyst, while also exhibiting remarkable long-term stability and great methanol tolerance. Control experiments reveal that the superior performance of the FeCo/NP-HOMMC catalyst for ORR benefits from the synergistic catalysis of highly dispersed Fe and Co dual active sites, and the advantages of the unique hierarchically ordered macro-/mesoporous structure, which can provide improved active site accessibility, excellent conductivity, and maximized mass/charge transport.

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来源期刊

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).