Synergistic role of MoS2 in gelation-induced fabrication of graphene oxide films

• Published in: Scientific reports Vol. 14; no. 1; pp. 12159 - 8
• Main Authors: Choi, Minah, Lim, Joonwon, Yang, Jieun
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 28.05.2024; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301; 639/925; Carbon; Catalysts; Electrical conductivity; Electrodes; Electron transfer; Fabrication; Gelation; Graphene; Humanities and Social Sciences; Molybdenum disulfide; multidisciplinary; Science; Science (multidisciplinary); Synergistic effect
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-62146-4

Supporting materials for electrocatalysts must exhibit relative chemical inertness to facilitate unimpeded movement of gas, and demonstrate electrical conductivity to promote efficient electron transfer to the catalyst. Conventional catalyst electrodes, such as glassy carbon, carbon cloths, or Ni foam, are commonly employed. However, the challenge lies in the limited stability observed during testing due to the relatively weak adhesion between the catalyst and the electrode. Addressing this limitation is crucial for advancing the stability and performance of catalyst-electrode systems in various applications. Here, we suggest a novel fabrication method for a freestanding conducting film, accomplished through gelation, incorporating 1T-MoS 2 and graphene oxide. 1T-MoS 2 nanosheets play a crucial role in promoting the reduction of graphene oxide (GO) on the Zn foil. This contribution leads to accelerated film formation and enhanced electrical conductivity in the film. The synergistic effect also enhances the film’s stability as catalyst supports. This study provides insights into the effective utilization of MoS 2 and graphene oxide in the creating of advanced catalyst support systems with potential applications in diverse catalytic reaction.