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Rapid Access to Ordered Mesoporous Carbons for Chemical Hydrogen Storage
Author(s) -
Jeong Uiseok,
Kim HyeonJi,
Ramesh Sreerangappa,
Dogan Nesibe A.,
Wongwilawan Sirinapa,
Kang Sungsu,
Park Jungwon,
Cho Eun Seon,
Yavuz Cafer T.
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202109215
Subject(s) - mesoporous material , hydrogen storage , materials science , dehydrogenation , nanoporous , nanoparticle , carbon fibers , chemical engineering , nanocomposite , nanotechnology , catalysis , oxide , template , hydrogen , chemistry , organic chemistry , composite number , composite material , engineering , metallurgy
Abstract Ordered mesoporous carbon materials offer robust network of organized pores for energy storage and catalysis applications, but suffer from time‐consuming and intricate preparations hindering their widespread use. Here we report a new and rapid synthetic route for a N‐doped ordered mesoporous carbon structure through a preferential heating of iron oxide nanoparticles by microwaves. A nanoporous covalent organic polymer is first formed in situ covering the hard templates of assembled nanoparticles, paving the way for a long‐range order in a carbonaceous nanocomposite precursor. Upon removal of the template, a well‐defined cubic mesoporous carbon structure was revealed. The ordered mesoporous carbon was used in solid state hydrogen storage as a host scaffold for NaAlH 4 , where remarkable improvement in hydrogen desorption kinetics was observed. The state‐of‐the‐art lowest activation energy of dehydrogenation as a single step was attributed to their ordered pore structure and N‐doping effect.