Tuning Crystallinity and Surface Hydrophobicity of a Cobalt Phosphide Cocatalyst to Boost CO 2  Photoreduction Performance | Zendy

Niu Pingping | Zendy; Pan Zhiming | Zendy; Wang Sibo | Zendy; Wang Xinchen | Zendy

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Tuning Crystallinity and Surface Hydrophobicity of a Cobalt Phosphide Cocatalyst to Boost CO 2 Photoreduction Performance

Author(s) -

Niu Pingping,

Pan Zhiming,

Wang Sibo,

Wang Xinchen

Publication year - 2021

Publication title -

chemsuschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.412

H-Index - 157

eISSN - 1864-564X

pISSN - 1864-5631

DOI - 10.1002/cssc.202002755

Subject(s) - phosphide , cobalt , crystallinity , selectivity , photocatalysis , catalysis , chemisorption , materials science , yield (engineering) , chemical engineering , inorganic chemistry , chemistry , organic chemistry , metallurgy , composite material , engineering

Photocatalytic CO 2 conversion is a promising method to yield carbon fuels, but it remains challenging to regulate catalytic materials for enhanced reaction efficiency and tunable product selectivity. This study concerns the development of a facile and efficient thermal post‐treatment method to improve the crystallinity and surface hydrophobicity of a cobalt phosphide (CoP) cocatalyst, which promotes the separation and transfer of photoexcited charge carriers, reinforces CO 2 chemisorption, and weakens the H 2 O affinity. Compared with pristine CoP, the optimal CoP‐600 cocatalyst displays a 3.5‐fold enhancement in activity and a 2.3‐fold increase in selectivity for the reduction of CO 2 to CO with a high rate of 68.1 μmol h −1 .

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