Abstract
Photoelectrochemical(PEC)small-molecule oxidation can selectively transform substrates into high-value-added fine chemi-cals and increase the rate of cathode hydrogen evolution.Nevertheless,achieving high-selectivity PEC oxidation of small molecules to produce specific products is a very challenging task.In general,selectivity can be improved by changing the surface catalytic sites of the photoanode and modulating the interfacial environments of the reactions.Herein,recent advances in approaches to improving selective PEC oxidation of small molecules are introduced.We first briefly discuss the basic con-cept and fundamentals of small-molecule PEC oxidation.The reported approaches to improving the performance of selective PEC oxidation of small molecules are highlighted from two aspects:(1)changing the surface properties of photoanodes by selecting suitable materials or modifying the photoanodes and(2)mediating the oxidation reactions using redox mediators.The PEC oxidation mechanism of these studies is emphasized.We also discuss the challenges in this research direction and offer a perspective on the further development of selective PEC-based small-molecule transformation.
基金项目
国家自然科学基金(22136005)
中国科学院战略规划重点项目(XDB36000000)
维普
万方数据