N-doped Carbon-encapsulated Nickel Oxide and Nickel Molybdate Composite for Urea Oxidation Electrocatalysis
In this paper,N-doped carbon-encapsulated nickel oxide and nickel molybdate composite(C-N@NiO-NiMo O4)was synthesized by stepwise hydrothermal as well as an-nealing methods,and was loaded on nickel foam(NF)for UOR electrocatalysis.The N-doped carbon-encapsulated structure and the synergistic effect of C-N@NiO and NiMo O4 can enhance the conductivity,charge transfer ability,poisoning resistance and increase the elec-troactive surface area,which significantly improve the electrocatalytic activity and long-term stability of the C-N@NiO-NiMo O4.It was found that the current density of C-N@NiO-Ni-Mo O4/NF at 1.8 V is 1.7 times higher than that of NiMo O4/NF and 3.6 times higher than that of C-N@NiO/NF.There was no significant change in the catalytic performance after 57 h of reaction at a current density of 10 mA·cm-2.The results showed that the prepared C-N@NiO-NiMo O4/NF has a good practical application prospect.
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维普
