Synthesis of Ultrathin and Grid‐Structural Carbon Nanosheets Coupled with Mo2C for Electrocatalytic Hydrogen Production. Issue 15 (24th June 2021)

• Record Type: Journal Article
• Authors: Du, Qianqian; Zhao, Ruihua; Chen, Xiaojun; Liu, Lu; Zhang, Shaoyang; Guo, Tianyu; Du, Jianping; Li, Jinping
• Is Part Of: Chemistry, an Asian journal. Volume 16:Issue 15(2021)
• Page Start: 2107
• Page End: 2112
• Publication Date: 2021-06-24
• Subjects: net-like carbon nanosheets -- Mo2C -- Mo-xerogel design -- electrocatalyst -- HER; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.202100512
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: Molybdenum carbide possessing a Pt‐like d‐band electronic structure is considered as one of potential candidates of electrocatalysts and it shows intrinsic catalytic property. However, a high carbonizing temperature easily leads to the coalescence of nanoparticles (NPs). Here, we propose a simple sol‐gel route to achieve high dispersity of carbide NPs by designing a Mo‐involved xerogel. The results show that molybdenum carbide NPs are dispersed and anchored on the nitrogen‐doped carbon nanosheets (Mo2 C@NC). Ultrathin carbon layers resemble graphene and the network structures act as a support of carbide NPs, which can hinder NPs' coalescence effectively. Nanpoparticles cross‐coupled on network‐structure nanosheets display the grid shapes. Electrochemical studies indicate that Mo2 C@NC material exhibits outstanding hydrogen evolution performance in alkaline electrolyte. Abstract : Mo2 C nanoparticles in‐situ dispersed on nitrogen‐doped carbon nanosheets have been prepared by pyrolysis of a gelatin‐assisted Mo‐xerogel for electrocatalyzing the hydrogen evolution reaction reaction.