journal article·2025-12

Dual-template synthesis of CoNi alloy nanoparticles anchored on N-doped carbon nanotubes for efficient oxygen reduction reaction

Shengyi Huang, Yao Shen, Ang Li, Huiling Zhou, Yanxin Qiao, Aihua Yuan, Hu Zhou, Shunli Zheng

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Abstract

The fabrication of one-dimensional metal/N-doped carbon materials has shown a promising prospect as efficient electrocatalysts for oxygen reduction reaction (ORR). Herein, CoNi alloy nanoparticles anchored on N-doped carbon nanotubes (CoNi@NCNT) are prepared by a dual-template strategy, using polypyrrole (PPy) tubes and CoNi-based metal–organic framework as the precursors. The as-formed CoNi@NCNT catalyst displays a half-wave potential (0.83 V) as well as good durability under alkaline medium. The excellent electrocatalytic performance is ascribed to a synergistic coupling of hierarchically tubular structure, highly electronic conductivity, and abundantly alloy-type active sites. When the CoNi@NCNT catalyst is applied in zinc–air battery (ZAB), the device displays a stable charge–discharge cycling performance. The present work affords a useful approach to constructing alloy/nitrogen-incorporated carbonaceous materials as bifunctional electrocatalysts for high-performance ZABs.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

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References (59)

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