Electrocatalytic hydrogenation of lignin monomer to methoxy-cyclohexanes with high faradaic efficiency. Issue 1 (14th December 2021)

• Record Type: Journal Article
• Authors: Wang, Miao; Peng, Tao; Yang, Chenxin; Liang, Baiyao; Chen, Henan; Kumar, Mohan; Zhang, Yun; Zhao, Wei
• Is Part Of: Green chemistry. Volume 24:Issue 1(2022)
• Page Start: 142
• Page End: 146
• Publication Date: 2021-12-14
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/d1gc03523a
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : A ternary RhPtRu electrocatalyst enables a record faradaic efficiency (FE) of 62.8% and selectivity of 91.2% towards high-value methoxy-cyclohexanes. Abstract : Developing efficient renewable electrocatalytic processes in chemical manufacturing is of commercial interest, especially from biomass-derived feedstock. Selective electrocatalytic hydrogenation (ECH) of biomass-derived lignin monomers to high-value oxygen-functional compounds is promising towards achieving this goal. However, ECH has to date lacked the satisfied selectivity to upgrade lignin monomers to high-value oxygenated chemicals due to the reduction of vulnerable −OCH3 that exists in most lignin monomers. Herein we report carbon-felt supported ternary RhPtRu catalysts with a record faradaic efficiency (FE) of 62.8% and selectivity of 91.2% to methoxy-cyclohexanes (2-methoxy-cyclohexanol and 2-methoxy-cyclohexanone) from guaiacol, via a strong inhibition effect on the cleavage of the methoxy group, representing the best performance compared to previous reports. We further conducted a brief TEA to demonstrate a profitable ECH of guaiacol to high-value methoxy-cyclohexanes using our designed RhPtRu ternary catalysts.