The core component of scanning electrochemical microscopy is an ultra-microelectrode. It possesses extraordinary spatiotemporal resolution and sensitivity thus it can image micro-scaled topography and detect trace electrochemically active species in the system. 扫描电化学显微镜的核心元器件超微电极具有极高的时空分辨率和灵敏度,可对微观形貌进行清晰成像,并检测局部微观区域中的微量电化学活性物种。