Premium
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 .