Vanadium‐Incorporated CoP <sub>2</sub> with Lattice Expansion for Highly Efficient Acidic Overall Water Splitting
نویسندگان
چکیده
Abstract A proton exchange membrane water electrolyzer (PEMWE) in acidic medium is a hopeful scenario for hydrogen production using renewable energy, but the grand challenge lies substituting noble‐metal catalysts. Herein, robust electrocatalyst of V−CoP 2 porous nanowires arranged on carbon cloth successfully fabricated by incorporating vanadium into CoP lattice. Structural characterizations and theoretical analysis indicate that lattice expansion caused V incorporation results upshift d‐band center, which conducive to adsorption boosting evolution reaction (HER). Besides, promotes surface reconstruction generate thicker Co 3 O 4 layer with an oxygen vacancy enhances acid‐corrosion resistance optimizes oxygen‐containing species, thus improving activity stability toward (OER). Accordingly, it presents superior overall splitting (1.47 V@10 mA cm −2 ) Pt−C/CC||RuO /CC (1.59 ), remarkable stability. This work proposes new route design efficient non‐noble metal electrocatalysts PEMWE.
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2022
ISSN: ['1521-3773', '1433-7851', '0570-0833']
DOI: https://doi.org/10.1002/ange.202116233