光电解水制氢耦合生物质醇/醛氧化的研究进展

生物质醇/醛是一类重要的生物基平台化合物, 通过催化氧化重整可将其进一步转化为高值含氧化学品或燃料. 太阳能驱动的光电催化技术是实现生物质醇/醛氧化最为绿色高效的途径之一. 与传统光电解水制氢相比, 利用生物质醇/醛氧化来替代阳极析氧过程不仅可以提高阳极产物的附加值, 同时可以提升太阳能到氢能的转化效率. 因此, 光电解水制氢耦合生物质醇/醛氧化对绿氢提效降本和高值化学品合成具有重要意义. 本文综合评述了光电解水制氢耦合生物质醇/醛的氧化反应机理, 总结了目前光电催化技术在生物质醇/醛氧化方面的研究进展, 最后对该领域所面临的机遇和挑战进行了展望.

Recent Progress in Photoelectrochemical H2 Production Coupled with Biomass-derived Alcohol/aldehyde Oxidation

Biomass-derived alcohol/aldehydes are important platform compounds， which can be further converted into high-value-added chemicals or fuels through catalytic oxidation. Photoelectrocatalytic（PEC） technology driven by solar energy is one of the most green and efficient ways to realize the oxidation of biomass-derived alcohol/aldehydes. Compared with the traditional PEC water splitting process to produce both O₂ and H₂， the use of PEC oxidation of biomass-derived alcohol/aldehydes instead of anodic oxygen evolution process can not only increase the value of anodic products， but also improve the conversion efficiency of solar energy to hydrogen， which is of great significance for H₂ production and high value chemical synthesis. In this review， we introduce the reaction mechanism of PEC H₂ production coupled with biomass-derived alcohol/aldehyde oxidation， and summarize the recent progress in PEC oxidation of biomass-derived alcohol/aldehydes. Moreover， the opportunities and challenges in this field are also prospected.