Wang Qi, Tang Qianlin, Li Peipei, Bai Xiaoxia
Department of Applied Chemistry, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, Shaanxi 710126, People's Republic of China.
Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, Shaanxi 710126, People's Republic of China.
Nanotechnology. 2024 Oct 4;35(50). doi: 10.1088/1361-6528/ad7e30.
Scanning electrochemical microscopy (SECM) is a scanning probe technique capable of imaging substrate topography and measuring the local electrochemical reactivity of interfaces. Since introduced by Allen J. Bard and co-workers in 1989, it has expanded into a wide variety of fields, such as nanomaterial characterization, energy, kinetics, electrocatalysis, metal anti-corrosion, biology and instrumental development. SECM uses an ultra-microelectrode as the probe to record redox current during probe scanning across sample surfaces to obtain local topography and electrochemical reactivity of samples. Specifically, three main topics are reviewed and discussed: (1) the working principles and operating modes of SECM; (2) the recent developments in the application of SECM in energy science, including solar cell, rechargeable batteries, fuel cells and supercapacitors, with an emphasis on the last five years (2019-2023); (3) the perspectives and outlook of SECM in various energy devices. We anticipate that a wider adoption of SECM by the energy community will allow for the operando characterization of many types of reactions, and hold the potential to provide new insights into the structure/activity and composition/activity relationships.
扫描电化学显微镜(SECM)是一种扫描探针技术,能够对基底形貌进行成像并测量界面的局部电化学反应活性。自1989年由艾伦·J·巴德及其同事引入以来,它已扩展到广泛的领域,如纳米材料表征、能源、动力学、电催化、金属防腐、生物学和仪器开发。SECM使用超微电极作为探针,在探针扫描样品表面的过程中记录氧化还原电流,以获取样品的局部形貌和电化学反应活性。具体而言,本文将对三个主要主题进行综述和讨论:(1)SECM的工作原理和操作模式;(2)SECM在能源科学中的应用的最新进展,包括太阳能电池、可充电电池、燃料电池和超级电容器,重点关注过去五年(2019 - 2023年);(3)SECM在各种能源装置中的前景和展望。我们预计,能源领域更广泛地采用SECM将有助于对多种类型的反应进行原位表征,并有可能为结构/活性和组成/活性关系提供新的见解。