The foamed Ni electrode modified by reduced graphene(rGO) oxide-precious metal Pd was prepared by a simple one-step impregnation method.The microstructure and surface morphology of the composite electrode were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The catalytic activity and stability of the electrode in H2O2 reduction reaction were tested by cyclic voltammetry,linear voltammetry and chronoamperometry.The results shown that the rGO oxide was coated on the surface of the foamed Ni skeleton,and the noble metal Pd nanoparticles with the diameter of about 100nm were uniformly dispersed in the rGO oxide.The composite electrode exhibited good catalytic performance for H2O2 electroreduction.In the mixed solution of 1mol/L NaOH+0.5mol/L H2O2,the current density can reach 164 mA/cm2 when the potential was -0.5V,and it shown good stability.
Sun Limei, Wen Fengchun, Li Suriguga, Zhang Zixuan, Hao Yanting
. Electrocatalytic reduction of H2O2 by foam Ni supported rGO oxide/Pd composite electrode[J]. New Chemical Materials, 2021
, 49(2)
: 149
-152
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.02.034
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