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Fabrication of a porous NiFeP/Ni electrode for highly efficient hydrazine oxidation boosted H₂ evolution.

ABSTRACT: Rational optimization of the surface electronic states and physical structures of non-noble metal nanomaterials is essential to improve their electrocatalytic performance. Herein, we report a facile dual-regulation strategy to fabricate NiFeP/Ni (P-NiFeP/Ni) porous nanoflowers, which involves Fe-doping and creating pores on nanosheets. The as-prepared P-NiFeP/Ni has a hierarchically porous surface, which exposes more electrochemically active sites and dramatically enhances the electron transfer rate. Thus, it exhibits excellent catalytic activity in both anodic hydrazine oxidation reaction (HzOR) and cathodic hydrogen evolution reaction (HER). Interestingly, the coupled electrolysis cell only offers a potential of 0.162 V at 10 mA cm^-2 to enable HzOR boosted H₂ evolution, highlighting an energy-saving hydrogen evolution strategy.

SUBMITTER: Wang H

PROVIDER: S-EPMC9417549 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Fabrication of a porous NiFeP/Ni electrode for highly efficient hydrazine oxidation boosted H2 evolution.

Wang Honglei H Tao Shengyang S

Nanoscale advances 20210302 8

Rational optimization of the surface electronic states and physical structures of non-noble metal nanomaterials is essential to improve their electrocatalytic performance. Herein, we report a facile dual-regulation strategy to fabricate NiFeP/Ni (P-NiFeP/Ni) porous nanoflowers, which involves Fe-doping and creating pores on nanosheets. The as-prepared P-NiFeP/Ni has a hierarchically porous surface, which exposes more electrochemically active sites and dramatically enhances the electron transfer ...[more]

PMID: 36133764

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