The Equipment for High-Throughput Screening Electrocatalysts

Jiacheng Wang*, Qiangjian Ju, Ruguang Ma

The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

ABSTRACT: The present research focuses on high-throughput equipment for materials characterization. The 10×10 arrayed electrode was made of graphite rods within porous ceramics (Fig. 1). The catalysts were loaded on the end of the arrayed electrode by coating the ink, magnetic sputtering, PLD, etc. This arrayed working electrode was tested by a multi-channel electrochemical station which was constructed by modifying the traditional single-channel electrochemical station. An arrayed on-off was set to connect the arrayed working electrode and the traditional electrochemical station. A 10×10 on-off array matches 10×10 working electrode one-by-one. Two working models could be set. The switch on of the on-off array could activate the working electrode array. Alternatively, some specific rows of the working electrode array could be activated by switching on the corresponding on-off arrays. The measurements were made by the electrochemical station. By adopting this strategy, the 10×10 electrode array could be characterized by LSVs, EIS, Chronoamperometry, etc. And the catalytic performance of all electrodes could be obtained. The as-development equipment could be applied to greatly improve the efficiency of materials study and screening.

Fig. 1 (a) The design of 10×10working electrode array; (b) The mechanism of the on-off array.