Issue 27, 2019

Sol–gel chemistry in molten Brønsted acids towards “activated” carbons and beyond

Abstract

“Chemical activation” using Brønsted acids as chemical agents is widely used to generate activated carbons for various sorption applications. Commercially relevant is especially a process using phosphoric acid as activating agent applied to abundant and inexpensive biomass such as wood or coconut shells. In this manuscript, we revisit the porogenesis mechanism based on experiments involving molecular model compounds and oxygen-free polymer precursors, as well as different molten acids as activating agents. Describing acid activation with principles of sol–gel chemistry results in a more general understanding and uncovers a versatile synthetic tool for materials nanochemistry.

Graphical abstract: Sol–gel chemistry in molten Brønsted acids towards “activated” carbons and beyond

  • This article is part of the themed collection: Nanocarbons

Supplementary files

Article information

Article type
Paper
Submitted
25 feb. 2019
Accepted
27 may. 2019
First published
12 jun. 2019

Nanoscale, 2019,11, 13154-13160

Sol–gel chemistry in molten Brønsted acids towards “activated” carbons and beyond

B. Koyutürk, J. Evans, H. Multhaupt, S. Selve, J. R. J. Simke, M. Wark and T. Fellinger, Nanoscale, 2019, 11, 13154 DOI: 10.1039/C9NR01722D

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