Surface/Interface Engineering of Si-Based Photocathodes for Efficient Hydrogen Evolution
Surface/Interface Engineering of Si-Based Photocathodes for Efficient Hydrogen Evolution
复制标题
DOI：
10.1021/acsphotonics.2c00708
复制
发表时间：
2022-11
期刊：
影响因子：
7
通讯作者：
Sijie Li;Huiwen Lin;Shunqin Luo;Qi Wang;Jinhua Ye
中科院分区：
文献类型：
--
作者：
Sijie Li;Huiwen Lin;Shunqin Luo;Qi Wang;Jinhua Ye
太阳能驱动的光电化学（PEC）水分解成氢燃料是一种有前途的可再生能源转化途径，以克服能源危机和环境问题。地球上丰富的硅半导体具有良好的光捕获能力，是PEC析氢反应（HER）的合适的光电阴极候选者，但存在固有的不稳定性和缓慢的动力学。大量的研究表明，表面/界面工程可以作为制造具有足够表面催化活性和易于界面载流子传输的si基光电阴极的有效策略。本文首先简要介绍了硅基光电阴极PEC HER的研究现状，并对其制备技术进行了综述。随后，系统概述了硅基光电阴极表面/界面工程方面的最新成就，以说明它们在提高PEC-HER性能方面的独特作用。最后，对进一步发展实用硅基光电阴极进行了展望。本文旨在促进对高效硅基PEC HER的表面/界面工程策略的深入理解和技术评估。
Solar-driven photoelectrochemical (PEC) water splitting into hydrogen fuel is a promising avenue for renewable energy conversion to overcome energy crises and environmental concerns. Earth-abundant Si semiconductors with excellent light-harvesting capabilities are suitable photocathode candidates for the PEC hydrogen evolution reaction (HER), but suffer from intrinsic instability and sluggish kinetics. Extensive studies have demonstrated that surface/interface engineering can serve as an effective strategy for fabricating Si-based photocathodes with sufficient surface catalytic activity and facile interfacial carrier transport. In this Review, we first briefly introduce the current status of PEC HER using Si-based photocathodes and summarize their fabrication techniques. Subsequently, a systematic overview of recent achievements in surface/interface engineering of Si-based photocathodes is presented to illustrate their distinct roles in boosting the PEC-HER performance. Finally, the perspective views regarding the further development of practical Si-based photocathodes are discussed. This Review aims to promote an in-depth understanding and technical evaluation of surface/interface engineering strategies for efficient Si-based PEC HER.