Pivotal MoOx-decorated Ru/C with a monomeric structure boosts the room temperature and low-pressure hydrogenation of levulinic acid to γ−valerolactone

Rodiansono,, Syahruji,, Heny Puspita Dewi, Atina Sabila Azzahra, Kiky Corneliasari Sembiring, Indri Badria Adilina and Ahmad Afandi

Renewable Energy, 2024, vol. 229, issue C

Abstract: Pivotal molybdenum oxide-decorated ruthenium on charcoal catalysts exhibited high efficiency and selectivity for the room temperature and low pressure hydrogenation of levulinic acid (LA) to renewable fuel γ−valerolactone (GVL). The Ru-(y)MoOx/C (y = the amount of co-loaded Mo in wt%) catalysts were synthesised by using a one-pot coprecipitation-hydrothermal method of a solution that consisted of Ru and Mo species at 150 °C for 24 h, followed by reduction with H2 at 300–600 °C for 1.5 h. The Ru-(0.55)/MoOx/C catalyst (pre-reduced at 500 °C) exhibited high dispersion of Ru nanoparticles on the surface of MoOx/C composite support, demonstrating the highest yield of GVL (>99) with a turnover frequency (TOF) reaching up to 2730 h−1 at 30 °C, 10 bar H2, and 1 h. The Ru-(0.55)/MoOx/C also catalysed various carboxylic acids to corresponding alcohols and was reusable without any significant loss of selectivity.

Keywords: Biomass conversion; Room temperature hydrogenation; Low-pressure hydrogenation; MoOx-modified Ru catalyst; Levulinic acid; γ−valerolactone (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:229:y:2024:i:c:s0960148124008152

DOI: 10.1016/j.renene.2024.120747

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