Selective demethoxylation of guaiacol to alkylphenols in supercritical methanol over a HT-MoS2 catalyst
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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12
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Catalysis Today, Volume 368, pp. 260-271
Abstract
The high value-added products such as alkyl substituted phenols (A-Ps) are very important from lignin-derived feedstocks. Herein, the selective conversion of guaiacol, an important chemical of lignin-derived bio-oil, to A-Ps over hydrothermally synthesized bulk MoS2 (HT-MoS2) was examined under supercritical methanol conditions without any gaseous hydrogen input. HRTEM confirms the formation of MoS2 with the nanosheet-like structure and XPS analysis exhibited the presence of Mo5+ and S22- species which are likely the active species for demethoxylation (DMO) and alkylation of guaiacol. The possible reaction pathways along with their plausible intermediates of guaiacol conversion are proposed. The HT-MoS2 catalyst can be reused up to 4 catalytic runs without loss of its catalytic activity.Description
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Wu, K, Kasipandi, S, Yan, F, Sang, Y, Ma, Z, Chen, M, Chen, H & Li, Y 2021, 'Selective demethoxylation of guaiacol to alkylphenols in supercritical methanol over a HT-MoS2 catalyst', Catalysis Today, vol. 368, pp. 260-271. https://doi.org/10.1016/j.cattod.2020.11.005