异质结
材料科学
光电阴极
光电子学
甲酸
水溶液
化学
物理
色谱法
物理化学
量子力学
电子
作者
Xiu Gong,Shuhan Fan,Qu Yang,Jingliang Yang,Yanli Chen,Xiaosi Qi,Hui Shen,Dan Ren,Mingkui Wang
标识
DOI:10.1016/j.cej.2024.152773
摘要
Using photoelectrochemical technology to construct efficient photoelectric materials has aroused extensive research interest. In this study, we propose a two-dimensional porous CuSe@BiOI isotype heterojunction photocathode for CO2 reduction to formic acid. The heterojunction was constructed by the epitaxial growth of high-quality oriented BiOI nanosheets onto the porous CuSe framework. The CuSe framework as a template to ensure the formation of the (1 0 2) facets of BiOI and the isotropic charge transport characteristics of the (1 0 2) surface greatly improve the efficiency of charge separation and transfer. This CuSe@BiOI isotype heterojunction electrode can efficiently reduce CO2 to formic acid with a selectivity of up to 80.5 % in 0.5 M potassium bicarbonate aqueous solution. Meanwhile, the performance of the photodetector based on CuSe@BiOI heterostructure is 6.97 × 1011 Jones and a response rate of 87.13 mA W−1. This finding provides a new approach to designing stable heterojunction photoelectrocatalysts with isotropy
科研通智能强力驱动
Strongly Powered by AbleSci AI