Issue 17, 2023

Self-supporting nano-porous carbon nanosheet with organized sp2-C network for unprecedented catalytic performance in room-temperature H2S oxidization

Abstract

Graphene-based carbons have promising applications in non-metal catalysis but are challenged by interlayer stack and poor porosity. Herein, the concept of graphene-like carbons is proposed with porous carbon nanosheets (PCNs) being prepared via a melt-foaming strategy. PCNs show abundant pore structure and organized sp2-C network around nanopores. Moreover, the robust and curved nanosheet is spatially isolated and is thus totally stack-free. The unimpeded accessibility to functional groups, defects, and sp2-C network enables PCNs with outstanding activity of activating oxygen and high compatibility as carbon support. Thus, alkali-modified PCNs present appealing catalytic oxidation of hydrogen sulfide with unprecedented sulfur capacity up to 10.7 g H2S g−1 catalyst, 3-fold than that of graphene-based benchmark counterparts. This study provides new insights into the rational design of next-generation carbon catalysts, opening up exciting opportunities for diverse applications.

Graphical abstract: Self-supporting nano-porous carbon nanosheet with organized sp2-C network for unprecedented catalytic performance in room-temperature H2S oxidization

Supplementary files

Article information

Article type
Paper
Submitted
13 Feb 2023
Accepted
30 Mar 2023
First published
31 Mar 2023

J. Mater. Chem. A, 2023,11, 9566-9578

Self-supporting nano-porous carbon nanosheet with organized sp2-C network for unprecedented catalytic performance in room-temperature H2S oxidization

F. Hu, H. Chen, Z. Zhang, B. Niu, Y. Zhang and D. Long, J. Mater. Chem. A, 2023, 11, 9566 DOI: 10.1039/D3TA00822C

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