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Simultaneous Activation–Exfoliation–Reassembly to Form Layered Carbon with Hierarchical Pores
Author(s) -
Ong Wei Li,
Wong Judith Hui Min,
Ng Serene Wen Ling,
Tan Hui Ru,
Lim Yee Fun,
Ho Ghim Wei
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700137
Subject(s) - mesoporous material , interconnectivity , macropore , exfoliation joint , materials science , carbon fibers , porosity , nanotechnology , chemical engineering , adsorption , catalysis , chemistry , composite material , organic chemistry , graphene , computer science , composite number , engineering , artificial intelligence
Abstract Currently, the production of hierarchical 2 D layered carbon is mostly limited by low yields, laborious processing, and the high tendency for reaggregation. Hence, it is still a challenge to attain stable porous carbon structures with a well‐preserved layered structure and hierarchical pores. Here, we demonstrate a facile and simultaneous activation–exfoliation–reassembly technique to perform structural modification and pore tailoring of carbonaceous matrices conveniently. Various pore creations can be realized concurrently from in‐plane micro‐/mesopores by chemical activation, expansion of intersheet mesopores, and interconnectivity of the layered structure to form 3 D macropores. Finally, a proof‐of‐concept demonstration of the combination of hierarchical macro‐/micro‐/mesoporous layered carbon structure and TiO 2 nanosheets shows promising adsorption and catalytic properties.