Abstract:
In this present work, we synthesized a three dimensional (3D) BiOCOOH micro flowers by a
solvothermal approach and applied to photosupercapacitor application for the first time. When it is used
as electrode material for photosupercapacitor, the BiOCOOH material shows long cycling stability (5000
cycles) during the continuous charge-discharge process. This improvement in the cycle life of the BiOCOOH
material is ascribed to its highly stable three dimensional structures. The as-prepared BiOCOOH exhibits a
maximum specific capacitance value of 140 Fg-1 and outstanding cycle life with maximum specific
capacitance retention of about 78% after 5000 cycles. This rational synthesis provided an effective strategy
to enhance the photosupercapacitor performance towards commercial application. With the good
electrical conductivity, and outstanding specific surface area, the as-prepared BiOCOOH electrode presents
great potential for high performance applications. The 3 wt% Pt modification of the BiOCOOH generates
441 μmol g−1 h−1 of H2, upon 5 h illumination
