The rising of microscopic electrochemistry: "watching" the local electron transfer optically

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2015,（21）
• 页码范围: 1866-1867
• 页数: 2页
• 语种: 中文
• DOI: 10.1007/s11434-015-0915-8

摘要

Determination of the electron transfer rate plays a central role in electrochemistry.In a typical single-electron electro-oxidation reaction (Red-e =Ox), a reactant molecule, Red, loses one electron to generate a product molecule, Ox.Traditionally, electrical signal measured by ammeter or potentiostat has been the only read-out signal that was utilized to quantify the electron transfer rate, i.e.,the current, and to study its dependence with the electrode potential.Although powerful, electrical read-out faces two emerging challenges.Firstly, electrical signal is lack of spatial resolution and is not suitable for the wide-fieldelectrochemical imaging.