Preparation of Nitrogen-doped Silver Phosphate and Its Performance of Supercapacitors

摘要

Silver phosphate (Ag3PO4) has been proved to be an excellent visible light catalyst. It also has a certain specific capacity, but if used as a supercapacitor anode material, its specific capaci- tance still needs to be further improved. To increase the specific capacity of Ag3PO4, a facile method is to dope it with nitrogen. In this work, the nitrogen-doped Ag3PO4 material (N- Ag3PO4) was synthesized via the reaction of AgNO3 with Na2HPO4 ?12H2O in the presence of urea at 80°C by means of liquid precipitation. Electrochemical analyses of the as-synthe- sized N-Ag3PO4 composites were carried out in a three- electrode geometry system.