Spin Polarization of Chiral Amorphous Fe‐Ni Electrocatalysts Enabling Efficient Electrochemical Oxygen Evolution
Source abstract
Abstract
Abstract Chiral‐induced spin selectivity is recently demonstrated in a range of spin‐dependent optoelectronics and electrochemistry. Herein, a new type of amorphous chiral tartaric acid‐FeNi coordination polymer fabricated by electrodeposition methods, achieving both high spin‐polarization and high electrocatalytic activity for oxygen evolution, is reported. Circular dichroism shows signature optical activity from the coordination polymer. Conductive atomic force microscopy measurements demonstrate a high spin polarization through the chiral electrocatalyst, which significantly suppresses the formation of hydrogen peroxide byproducts compared to the achiral ones. These chiral Fe‐Ni electrocatalysts exhibit a low overpotential of 205 and 280 mV to achieve 10 and 100 mA cm−2, respectively.
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Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR 999077 China
Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong 999077 P. R. China
Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo City Zhejiang Province 315201 P. R. China
Ningbo New Materials Testing and Evaluation Center CO., Ltd Ningbo City Zhejiang Province 315201 P. R. China
Funding
National Natural Science Foundation of China · Hong Kong University of Science and Technology
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