石墨烯
介孔材料
催化作用
三嗪
过电位
材料科学
三唑
化学
化学计量学
组合化学
纳米技术
无机化学
物理化学
有机化学
高分子化学
电化学
电极
作者
In Young Kim,Sungho Kim,Jin X,Premkumar Selvarajan,Goutam Kumar Chandra,Nam‐Suk Lee,Gurudas P. Mane,Seong‐Ju Hwang,Siva Umapathy,Ajayan Vinu
标识
DOI:10.1002/ange.201811061
摘要
Abstract Mesoporous carbon nitrides (MCN) with C 3 N 4 stoichiometry could find applications in fields ranging from catalysis, sensing, and adsorption–separation to biotechnology. The extension of the synthesis of MCN with different nitrogen contents and chemical structures promises access to a wider range of applications. Herein we prepare mesoporous C 3 N 5 with a combined triazole and triazine framework via a simple self‐assembly of 5‐amino‐1 H ‐tetrazole (5‐ATTZ). We are able to hybridize these nanostructures with graphene by using graphene–mesoporous‐silica hybrids as a template to tune the electronic properties. DFT calculations and spectroscopic analyses clearly demonstrate that the C 3 N 5 consists of 1 triazole and 2 triazine moieties. The triazole‐based mesoporous C 3 N 5 and its graphene hybrids are found to be highly active for oxygen reduction reaction (ORR) with a higher diffusion‐limiting current density and a decreased overpotential than those of bulk g‐C 3 N 4 .
科研通智能强力驱动
Strongly Powered by AbleSci AI