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

Zhongwei Fang; Chenxi Xu; Xiaole Zhang; Yucheng Wang; Tao Xiao; Ling Wang; Mei Chen; Xiaoteng Liu

doi:10.1002/ente.202101168

MXene (Ti₃C₂T_x)-Supported Binary Co-, Zn-Doped Carbon as Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells

Zhongwei Fang, Chenxi Xu^*, Xiaole Zhang, Yucheng Wang, Tao Xiao, Ling Wang, Mei Chen, Xiaoteng Liu

^*Corresponding author for this work

Mechanical and Construction Engineering Department

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Transition 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.

Original language	English
Article number	2101168
Number of pages	6
Journal	Energy Technology
Volume	10
Issue number	5
Early online date	26 Feb 2022
DOIs	https://doi.org/10.1002/ente.202101168
Publication status	Published - 1 May 2022

Keywords

oxygen reduction reaction (ORR)
non-precious metal catalysts
MXenes
alkaline fuel cells

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10.1002/ente.202101168

Cite this

@article{264101e932604bef84694e1119138e6d,

title = "MXene (Ti3C2Tx)-Supported Binary Co-, Zn-Doped Carbon as Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells",

abstract = "Transition 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.",

keywords = "oxygen reduction reaction (ORR), non-precious metal catalysts, MXenes, alkaline fuel cells",

author = "Zhongwei Fang and Chenxi Xu and Xiaole Zhang and Yucheng Wang and Tao Xiao and Ling Wang and Mei Chen and Xiaoteng Liu",

note = "Funding information: We thank thefinancial support from the National Key Research andDevelopment Program of China under Grant no. 2021YFE0191700, andInstitute of Energy, Hefei Comprehensive National Science Center underGrant no. 21KZS210.",

year = "2022",

month = may,

day = "1",

doi = "10.1002/ente.202101168",

language = "English",

volume = "10",

journal = "Energy Technology",

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TY - JOUR

T1 - MXene (Ti3C2Tx)-Supported Binary Co-, Zn-Doped Carbon as Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells

AU - Fang, Zhongwei

AU - Xu, Chenxi

AU - Zhang, Xiaole

AU - Wang, Yucheng

AU - Xiao, Tao

AU - Wang, Ling

AU - Chen, Mei

AU - Liu, Xiaoteng

N1 - Funding information: We thank thefinancial support from the National Key Research andDevelopment Program of China under Grant no. 2021YFE0191700, andInstitute of Energy, Hefei Comprehensive National Science Center underGrant no. 21KZS210.

PY - 2022/5/1

Y1 - 2022/5/1

N2 - Transition 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.

AB - Transition 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.

KW - oxygen reduction reaction (ORR)

KW - non-precious metal catalysts

KW - MXenes

KW - alkaline fuel cells

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DO - 10.1002/ente.202101168

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