GaN nanowires/Si photocathodes for CO_(2) reduction towards solar fuels and chemicals: advances, challenges, and prospects  

作　　者：Baowen Zhou Jinglin Li Xinyue Dong Lin Yao 

机构地区：[1]Key Laboratory for Power Machinery and Engineering of Ministry of Education,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai 201306,China

出　　处：《Science China Chemistry》2023年第3期739-754,共16页中国科学（化学英文版）

基　　金：supported by the Startup Fund of Shanghai Jiao Tong University and the National Natural Foundation of China(22109095);Shanghai Pilot Program for Basic Research-Shanghai Jiao Tong University(21TQ1400211).

摘　　要：Photoelectrocatalytic(PEC)production of fuels and chemicals by using solar energy,water,and CO_(2) paves a promising avenue toward carbon neutrality.Over the past decades,for accelerating this process,a variety of photocathodes have been explored.Among them,the hybrid of GaN nanowires(NWs)and planar silicon has appeared as a disruptive platform for this grand topic,owing to their distinctive structural,optoelectronic,and catalytic properties.This review illustrates the most recent advances in GaN NWs/Si-based photocathodes for CO_(2) reduction reactions powered by simulated sunlight,beginning with a discussion of the critical requirements and fundamental challenges of PEC CO_(2) reduction.The characteristics of GaN NWs/Si are then discussed,showing its great potential in precisely controlling the behavior of photons,charges,and chemical species.As the focus of this review,the progress on the PEC CO_(2) reduction reactions toward different products over GaN NWs/Si-based photocathodes is highlighted.In the end,the challenges and prospects of GaN NWs/Si-based photocathodes for the practical synthesis of solarfuels and chemicals are proposed.

关 键 词：GaN NWs/Si PHOTOCATHODES solar fuels and CHEMICALS CO REDUCTION REACTIONS 

分 类 号：O643.36[理学—物理化学]