振動強耦合對鐵氰化鉀電化學氧化反應的影響

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中圖分類號：0431 文獻標志碼：A

Effect of vibrational strong coupling on electrochemical oxidation of potassium ferricyanide

RUI Zhenliang122，ZHANG Feng1 （1.SchoolofOptical-ElectricaladComputerEnineing，Uivesityofanghaiforiencehologang09， China; 2. Wenzhou Institute， University of Chinese Academy of Sciences， Wenzhou 325oo1， China）

Abstract： Vibrational strong coupling （VSC） has a remarkable ability to induce molecular energy level changes， which offers great potential for eective control of chemical reactions， especially electrochemical processes. However， there are few reports about redox processes in optical microcavities. The oxidation-reduction reaction of potassum ferricyanide on the surface of gold electrode was a classical reaction in electrochemistry. In order to study the effect of vibrational coupling on the oxidation reaction of potassium ferricyanide on the surface of gold electrode， an electrochemical micro-cavity was designed as an optical resonator and the oxidation reaction of potassium ferricyanide on the surface of gold electrode was studied. The experimental results show that the oxidation effciency of potassium ferricyanide is consistent with the O-H vibration band. Under the VSC of 3420cm-1 O-H stretching vibration， the O-H Rabi splitting affects the interaction between water molecules and changes the hydration of ions， so the oxidation efficiency of potassium ferricyanide is inhibited by about 52% compared with non-cavity system. This work provides a novel and more efficient physical means for regulating chemical reactions. More importantly， the integration of electrochemistry and microcavities enables real-time monitoring of reaction processes， addresses the challenge of detecting limited quantities of samples within a finite space.

Keywords： vibrational strong coupling; electrochemistry; potassum ferricyanide; optical resonator

在過去的十年里，利用混合光物質狀態(tài)操縱化學和材料性質的可能性引起了人們的極大興趣。（剩余8773字）