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A Universal Lab‐on‐Salt‐Particle Approach to 2D Single‐Layer Ordered Mesoporous Materials
Author(s) -
Liu Liangliang,
Yang Xuanyu,
Xie Yujie,
Liu Huan,
Zhou Xinran,
Xiao Xingyu,
Ren Yuan,
Ma Zhen,
Cheng Xiaowei,
Deng Yonghui,
Zhao Dongyuan
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201906653
Subject(s) - mesoporous material , materials science , nanotechnology , diffusion , particle (ecology) , porosity , layer (electronics) , chemical engineering , nanoparticle , catalysis , organic chemistry , composite material , chemistry , physics , oceanography , engineering , thermodynamics , geology
The advantages of existing ordered mesoporous materials have not yet been fully realized, due to their limited accessibility of in‐pore surface and long mass‐diffusion length. A general, controllable, and scalable synthesis of a family of two‐dimensional (2D) single‐layer ordered mesoporous materials (SOMMs) with completely exposed mesopore channels, significantly improved mass diffusion, and diverse framework composition is reported here. The SOMMs are synthesized via a surface‐limited cooperative assembly (SLCA) on water‐removable substrates of inorganic salts (e.g., NaCl), combined with vacuum filtration. As a proof of concept, the obtained CeO 2 ‐based SOMMs show superior catalytic performance in CO oxidation with high conversion efficiency, ≈33 times higher than that of conventional bulk mesoporous CeO 2 . This SLCA is a promising approach for developing next‐generation porous materials for various applications.