界面微环境调控策略用于电催化转化的研究进展
摘要
<p indent="0mm">In recent years, there has been significant progress in the development of efficient electrocatalytic system driven by renewable electricity. Beyond traditional electrocatalyst design, it has been demonstrated that the regulation of the local microenvironment at the electrode-electrolyte interface (within the nanoscale) has a profound impact on the electrocatalytic performance, with many significant progresses made in recent years. This article reviewed the recent progress in interfacial microenvironment regulation strategies on the electrocatalytic conversion (such as carbon dioxide reduction and biomass molecule conversion). Taking the development of the double layer structure theory as a main line, we first introduced each component of electric double layer (EDL) according to the Gouy-Chapman-Stern (GCS) theory, which is the most widely recognized theory. Based on the structure evolution of EDL and the interactions among the interfacial species, we categorized the microenvironment regulation strategies into four types, including interfacial electric field regulation, interfacial pH regulation, interfacial substrate concentration regulation, and interfacial species interaction regulation. Firstly, we described the fundamental characteristics of interfacial electric field and the associated potential of zero charge (PZC) parameters. We discussed the effects of electrolyte and additive cations on the interfacial electric field. Based on the existing adsorption models of interfacial water and cations, detailed discussions on the effects of the types and concentrations of cations on the reaction performance were presented. At the end, we pointed out that the surfactant cations have a unique impact on the reaction performance when they are adsorbed over electrode. Secondly, the discussion of interfacial pH regulation was given from two aspects: Cationic acidity regulation and interface pH enhancement. The former one emphasizes the stability of cations i