The effect of nitrogen on the synthesis of porous carbons by iron-catalyzed graphitization †

Robert D. Hunter, Emily C. Hayward, Glen J. Smales, Brian R. Pauw, A. Kulak, Shaoliang Guan, Zoe Schnepp*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This paper reports a systematic study into the effect of nitrogen on iron-catalyzed graphitization of biomass. Chitin, chitosan, N-acetylglucosamine, gelatin and glycine were selected to represent nitrogen-rich saccharides and amino-acid/polypeptide biomass precursors. The materials were pyrolyzed with an iron catalyst to produce carbons with a wide range of chemical and structural features such as mesoporosity and nitrogen-doping. Many authors have reported the synthesis of nitrogen-doped carbons by pyrolysis and these have diverse applications. However, this is the first systematic study of how nitrogen affects pyrolysis of biomass and importantly the catalytic graphitization step. Our data demonstrates that nitrogen inhibits graphitization but that some nitrogen survives the catalytic graphitization process to become incorporated into various chemical environments in the carbon product.
Original languageEnglish
Pages (from-to)2070-2077
Number of pages8
JournalMaterials Advances
Volume2023
Issue number4
Early online date22 Mar 2023
DOIs
Publication statusE-pub ahead of print - 22 Mar 2023

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