Small molecules induction can achieve the oriented migration of metal elements, which affords functional materials with synergistic components. In this paper, P-WO3/NF catalyst was obtained by phosphating the nickel foam… Click to show full abstract
Small molecules induction can achieve the oriented migration of metal elements, which affords functional materials with synergistic components. In this paper, P-WO3/NF catalyst was obtained by phosphating the nickel foam (NF) supported octahedral WO3 with phosphine. Through a series of test results, it is proved that Ni forms Ni-P bond to migrate from NF to WO3 under the induction of P, leaving complex oxide W1.3Ni0.24O4 and Ni2P2O7in the particle interior and nickel phosphide on the octahedral grain surface. The catalytic activity of urea oxidation reaction (UOR) can be improved by synergistic action of the components in the synthesized hybrid particles, which can be used as another anodic hydrogen production reaction of oxygen evolution reaction. At the potential of 1.305 V, the current density of 10 mA/cm2 can be reached, the double layer capacitance (Cdl) value of the catalyst is significantly increased, and the electron transfer impedance of catalytic UOR is reduced. This work demonstrates that small molecule induction is suitable for constructing co-catalysts with complex components in a simple protocol, which provides a new idea for the design of highly efficient urea oxidation catalysts.
               
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