MXene (Ti3C2Tx)-Supported Binary Co-, Zn-Doped Carbonas Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells

Fang, Zhongwei, Xu, Chenxi, Zhang, Xiaole, Wang, Yucheng, Xiao, Tao, Wang, Ling ORCID: https://orcid.org/0000-0002-7225-2878, Chen, Mei and Liu, Xiaoteng 2022. MXene (Ti3C2Tx)-Supported Binary Co-, Zn-Doped Carbonas Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells. Energy Technology 10 (5) , 2101168. 10.1002/ente.202101168

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Abstract

ransition metal–nitrogen–carbon materials are used as catalysts for the oxygen reduction reaction (ORR) because of their low cost, high activity, and stability in the alkaline medium. Herein, CoZn/nitrogen–carbon (NC)–Ti3C2 as an ORR electrocatalyst is prepared by one-step pyrolysis of zeolitic imidazolate framework (ZIF)-67/ZIF-8 on the Ti3C2 surface. The CoZn/NC–Ti3C2 catalyst presents considerable kinetics with a half-wave potential (E1/2) of 0.847 V, and the fuel cell peak power density reaches 245 mW cm−2. Furthermore, this catalyst exhibits an excellent stability with only 4.83% drop of relative current after 30000 s of testing. Herein, a new strategy for high-effective and high-stability non-precious metal catalysts for anion exchange membrane fuel cells is provided.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	Wiley-VCH Verlag
ISSN:	2194-4288
Date of Acceptance:	18 February 2022
Last Modified:	04 Jan 2023 10:45
URI:	https://orca.cardiff.ac.uk/id/eprint/155265

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