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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Article number2101168
Number of pages6
JournalEnergy Technology
Early online date26 Feb 2022
DOIs
Publication statusE-pub ahead of print - 26 Feb 2022

Fingerprint

Dive into the research topics of 'MXene (Ti3C2Tx)-Supported Binary Co-, Zn-Doped Carbon as Oxygen Reduction Reaction Catalyst for Anion Exchange Membrane Fuel Cells'. Together they form a unique fingerprint.

Cite this