![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
In this paper, nano-carbon black and polypropylene were used as raw materials to prepare Φ18 mm disc working electrode by the process of hot extrusion mixing-hot embossing-electrode preparing. Saturated calomel electrode was used as a reference electrode and graphite plate as the auxiliary electrode to study the electrochemical properties of disc working electrode in the vanadium redox battery solution. The results indicated that the higher nano-carbon black content was, the higher electrochemical activity and the worse corrosion resistance in the nano-carbon black polypropylene disc working electrode would be. The suitable nano-carbon black content was 45%. The disc working electrode with 45% nano-carbon black content possessed a hydrogen evolution potential at −1·0 V and an oxygen evolution potential at +2·5 V in the vanadium redox battery solution. The suitable working temperature of disc working electrode was 35°C. The suitable scanning rate range of disc working electrode was 50–200 mV s−1.