摘要
In this paper,a new two-dimensional(2 D)/2 D composite of Bi2 WO6/MoS2 was facile synthesized,and then was used as supporting material for depositing Pt nanoparticles.The as-synthesized Pt-Bi2 WO6/MoS2 was extended into photo-assisted electrocatalytic oxidation of methanol,which is a model anode reaction for direct methanol fuel cell.Compare with traditional electrocatalytic process,PtBi2 WO6/MoS2 displays 1.5 times enhanced electrocatalytic performance on methanol oxidation with assistance of visible light irradiation and 2.2 times for commercial Pt/C.Besides,from the results of chronoamperometric and chronopotentiometry experiments,the stability of Pt-Bi2 WO6/MoS2 electrode is clearly improved under visible light irradiation.The synergistic effects of photo-and electro-catalytic in the heterojunction of Pt-Bi2 WO6/MoS2 in favor of the above enhancement.This research gives more insights in the fields of photo-assisted traditional electrocatalytic application by constructing of semiconductor heterojunction carrier.
In this paper,a new two-dimensional（2 D）/2 D composite of Bi2 WO6/MoS2 was facile synthesized,and then was used as supporting material for depositing Pt nanoparticles.The as-synthesized Pt-Bi2 WO6/MoS2 was extended into photo-assisted electrocatalytic oxidation of methanol,which is a model anode reaction for direct methanol fuel cell.Compare with traditional electrocatalytic process,PtBi2 WO6/MoS2 displays 1.5 times enhanced electrocatalytic performance on methanol oxidation with assistance of visible light irradiation and 2.2 times for commercial Pt/C.Besides,from the results of chronoamperometric and chronopotentiometry experiments,the stability of Pt-Bi2 WO6/MoS2 electrode is clearly improved under visible light irradiation.The synergistic effects of photo-and electro-catalytic in the heterojunction of Pt-Bi2 WO6/MoS2 in favor of the above enhancement.This research gives more insights in the fields of photo-assisted traditional electrocatalytic application by constructing of semiconductor heterojunction carrier.
基金
support of the National Natural Science Foundation of China (No.21603111)
