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Controlled Assembly of Porphyrin‐MoS 2 Composite Nanosheets for Enhanced Photoelectrochemical Performance
Author(s) -
Wu Wenzhuo,
Wei Cong,
Lin Xiangcheng,
Xu Qun
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201800290
Subject(s) - photocurrent , porphyrin , catalysis , composite number , materials science , durability , absorption (acoustics) , chemical engineering , optoelectronics , nanotechnology , photochemistry , chemistry , composite material , organic chemistry , engineering
Abstract As a promising non‐precious metal photoelectrochemical (PEC) catalyst, MoS 2 exhibits high electrocatalytic activity and stability, while the weak light absorption efficiency and low photoresponse current limit its practical application. Herein, a facile co‐assembly approach is proposed to construct porphyrin‐MoS 2 composite photoelectrocatalysts. The as‐prepared photoelectrocatalysts show a significantly enhanced photocurrent response as high as 16 μA cm −2 , which is about 2 times higher than that of bare MoS 2 . Furthermore, the obtained porphyrin‐MoS 2 catalysts exhibit excellent durability when tested for 23000 s, thus providing a useful strategy for the design of highly efficient dye‐sensitized PEC catalysts.