journal article·2022-05

Hierarchical Architecture of Well‐Aligned Nanotubes Supported Bimetallic Catalysis for Efficient Oxygen Redox

Qing Zhang, Pengfei Liu, Xiaogang Fu, Yang Yuan, Liguang Wang, Rui Gao, Lirong Zheng, Lin Yang, Zhengyu Bai

Advanced Functional Materials· Volume 32· Issue 22
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Abstract

Abstract Rational design of efficient non‐precious materials for oxygen redox electrocatalysis is currently a critical obstacle for rechargeable zinc‐air batteries. Herein, this work presents a strategy to modulate the activity and mass transfer performance for advanced bifunctional electrocatalysts. This is achieved via a prior vacuum heat treatment‐assisted pyrolysis approach, obtaining atomically disperse Fe/Co sites and alloy nanoparticle composites rooted in the unique well‐aligned nanotubes hierarchical architecture. The design of multiple metal active species and hierarchically porous structure facilitates the bifunctional activity and accessibility of the active sites, respectively, which affords the catalyst enhanced performance in rechargeable zinc‐air batteries, outperforming the commercial Pt/C‐Ir/C benchmarks. This work provides a new avenue to improve activity and accessibility together with single atomic catalysts as advanced bifunctional air cathodes for efficient oxygen redox electrocatalysis.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China

Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 P. R. China

Institute of Zhejiang University‐Quzhou 78 Jiuhua Boulevard North Quzhou 324000 P. R. China

Department of Chemical Engineering Waterloo Waterloo Institute for Nanotechnology Waterloo Institute for Sustainable Energy University of Waterloo Ontario N2L 3G1 Canada

Beijing Synchrotron Radiation Facility (BSRF) Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China

Funding

National Natural Science Foundation of China · Higher Education Discipline Innovation Project

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