Rapid access to ordered mesoporous carbons for chemical hydrogen storage

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 single step was attributed to their ordered pore structure and N-doping effect.

Jeong, U., Kim, H., Ramesh, S., Dogan, N. A., Wongwilawan, S., Kang, S., … Yavuz, C. T. (2021). Rapid access to ordered mesoporous carbons for chemical hydrogen storage. Angewandte Chemie International Edition. doi:10.1002/anie.202109215


Angewandte Chemie


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