首页|Jellyfish bio-inspired Fe@CNT@CuNC derived from ZIF-8 for cathodic oxygen reduction

Jellyfish bio-inspired Fe@CNT@CuNC derived from ZIF-8 for cathodic oxygen reduction

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Biomimetics provides guidance to design and synthesize advanced catalysts for oxygen reduction reaction in microbial fuel cells(MFCs).Herein,jellyfish-inspired Fe clusters on carbon nanotubes connected with CuNC(Fe@CNT@CuNC)were designed and prepared by using zeolitic imidazolate framework(ZIF)-8 precursors to imitate the organic texture and function of jellyfish.The antibacterial effect of Cu+ions depressed the growth of cathode biofilm to ensure rapid mass transport.Fe clusters and CuNC connected by CNTs accelerated the electron transfer from Fe to CuNC.The optimization of oxygen adsorption was caused by electron redistribution between sites of Fe and Cu.Jellyfish-like catalysts achieved a half-wave potential of 0.86 V and onset potential of 0.95 V vs.reversible hydrogen electrode(RHE).MFCs gained the maximum power density of 1600 mW·m-2 after 500 h measurement.This work provides insights into the special design of advanced catalysts based on bio-inspiration and biomimetics.

bio-inspirationoxygen reduction reactionantibacterial abilitymicrobial fuel cellsdensity functional theory(DFT)rational design

Kai Cheng、Zequan Liu、Demin Jiang、Min Song、Yuqiao Wang

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Research Center for Nano Photoelectrochemistry and Devices,School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China

Yangtze River Delta Carbon Neutrality Strategy Development Institute,Southeast University,Nanjing 210096,China

School of Energy and Environment,Southeast University,Nanjing210096,China

Joint Funds of NUAA-SEUNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

69070460315207604352222609

2024

10.1007/s12274-023-6064-5

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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