报告题目：Double layer effects on electrocatalytic reactions: Frumkin corrections and beyond
主持人（邀请人）： 赵晓 教授
报告地点: 唐敖庆楼D区 D429
摘要：Double layer effects on outer-sphere electron transfer was conceived by Frumkin in the 1930s, experimentally studied by the Frumkin school in the 1950-70s, and enriched greatly since 1970s thanks to new developments in experimental single crystals etc. and theoretical first-principles based approaches electrochemistry. This spectacular research line will be briefly reviewed in the first part of my talk. The main part of my talk is about threefold challenges of understanding of double layer effects on inner-sphere electron transfer to which electrocatalytic reactions belong. First, the double layer structure and properties are dramatically changed by specific adsorption and chemisorption of electrolyte species. Second, double layer effects on inner-sphere electron transfer reactions go beyond electrostatics; instead, short-range electronic effects and their interplay with electrostatic effects are essential. Third, as electrocatalytic reactions involve multiple electrons and the double layer structure is influenced by mass transport in the electrolyte solution, a hierarchal consideration of multielectron microkinetics, double layer charging and mass transport is important to comprehend the double layer effects.
. Tsirlina G. The role of supporting electrolyte in heterogeneous electron transfer. Journal of Solid State Electrochemistry, 2017. [An excellent review on Frumkin corrections, and my first part will heavily rely on this paper]
. Huang J. Zooming into the Inner Helmholtz Plane of Pt(111)-Aqueous Solution Interfaces: Chemisorbed Water and Partially-Charged Ions. JACS Au, 2023 [This paper discusses newcompared to non-electrocatalytic metals features of electrocatalytic double layers at the example of Pt 111]
. Huang J. Mixed quantum-classical treatment of electron transfer at electrocatalytic interfaces: Theoretical framework and conceptual analysis. The Journal of Chemical Physics. 2020. [On the interplay between electronic and electrostatic effects on inner-sphere electron transfer]
. Huang J, Climent V, Groß A, Feliu JM. Understanding surface charge effects in electrocatalysis. Part 2: Hydrogen peroxide reactions at platinum. Chinese Journal of Catalysis. 2022. [a hierarchal model combining multielectron microkinetics, double layer charging and mass transport]