文献类型：期刊文献

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

作者：Hu, Feng[1];Chen, Huan[1];Zhang, Zhengliang[1];Niu, Bo[1];Zhang, Yayun[1,2];Long, Donghui[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Key Lab Specially Funct Mat & Related Technol, Minist Educ, Shanghai 200237, Peoples R China

年份：2023

卷号：11

期号：17

起止页码：9566

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20231714021063);WOS:【SCI-EXPANDED(收录号:WOS:000969222100001)】；

基金：This work was financially supported by National Natural Science Foundation of China (no 22008073, no. 21878091, no. 22078100, no. 52102098), Shanghai Sailing Program (no 20YF1410600), Fundamental Research Funds for the Central Universities, and Shanghai Talent Development Fund (2021021).

语种：英文

外文关键词：Catalysts - Catalytic oxidation - Nanosheets - Pore structure - Sulfur compounds

摘要：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 sp(2)-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 sp(2)-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.