期刊
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
卷 51, 期 7, 页码 665-671出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1023193515070058
关键词
CoB2O4 catalyst; hydrolysis of NaBH4; H-2-O-2 fuel cell; generation of H2O2
资金
- Shota Rustaveli National Research Foundation [AR/338/6-440/11, 10/04]
Ultrasonic treatment and annealing at 450A degrees C were used to synthesize a finely dispersed (CoBO4)-O-2 catalyst for hydrolysis of the alkaline NaBH4 solution. The specific rate of hydrogen evolution on the obtained catalyst was 16 x 10(3) mL (min g)-(1) at the temperature of 40A degrees C, the calculated activation energy of NaBH4 hydrolysis was 58.57 kJ mol(-1). Current density generated by a H-2-O-2 fuel cell with simultaneous generation of hydrogen peroxide operating on hydrogen fuel obtained in situ by NaBH4 reforming for 2 h at the temperature of 20A degrees C was stable and was 29 mA cm-(2); the current efficiency of (HO2)-O-2 was 97%.
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