Rational design of a low-cost, simple technology and high-performance CoNi/Co₃O₄ as a catalyst in sodium borohydride electro-oxidation reaction

We present a simple self-supporting catalyst containing CoNi nanosheets grown on Co3O4 electrodes. In the DBHPFC test, it has a maximum power density of 108.5 mW cm−2, an open circuit potential of 1.8 V, and good operating stability.