Directional hydrothermal hydrogenation of palmitic acid to alcohol over carbon-encapsulated highly dispersed Co catalyst

Lin, Min; Jiang, Daxin; Yan, Yuhao; Zhou, Shaomin; Li, Rui; Song, Xianliang; Wu, Yulong

doi:10.1016/j.ces.2024.120236

Chemical Engineering Science

2024

DOI: 10.1016/j.ces.2024.120236

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Directional hydrothermal hydrogenation of palmitic acid to alcohol over carbon-encapsulated highly dispersed Co catalyst

Min Lin,

Daxin Jiang,

Yuhao Yan

et al.

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2024

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Cited by 2 publications

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Advanced progress in constructing carbon-coated metal materials for electrocatalytic CO2 reduction

Yan,

Wen,

Qiang

et al. 2024

Journal of Alloys and Compounds

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Advanced progress in constructing carbon-coated metal materials for electrocatalytic CO2 reduction

Yan,

Wen,

Qiang

et al. 2024

Journal of Alloys and Compounds

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Revealing the Effects of Mo Doping to Ni on Catalyzing Hydrogenation of Fatty Acids to Fatty Alcohols

Xu,

Luo,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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Fatty acid hydrogenation is an important method for the production of fatty alcohols. The combination of Ni and Mo has been reported to be an effective and low-cost catalyst. However, the effect of Mo doping has yet to be fully understood. Here Ni-MoO x /TiO 2 catalysts were prepared via simple impregnation. and the enhancement effects of Mo doping were comprehensively revealed. First, MoO x can attract electrons from Ni, reduce the electron density of Ni to improve the intrinsic activity of Ni, and form a Ni δ+ -(MoO x ) δ− heterojunction to induce H 2 heterolytic cleavage to active hydrogen ions. Second, the reduction of MoO x generates oxygen vacancies, which can absorb C�O of the fatty acid and facilitate the reaction progression. Third, a Ni 1−x Mo x solid solution can be formed, which can increase the hydrogen adsorption quantity and accelerate the reaction rate. Finally, the bond strength of Mo−O is found to be the most optimum that can absorb the fatty acids while releasing the alcohols so as to recover the oxygen vacancies and avoid overhydrogenation. Therefore, high activity and selectivity for the hydrogenation of carboxylic acid substrates to alcohols can be obtained. Under significantly milder conditions (155 °C, 3 MPa H 2 ) the catalyst provided a 98% yield of lauryl alcohol from lauric acid hydrogenation with a low activation energy of 40.1 kJ/mol. This work could provide an insightful understanding about the effects of Mo doping to Ni on catalyzing hydrogenation reactions.

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Directional hydrothermal hydrogenation of palmitic acid to alcohol over carbon-encapsulated highly dispersed Co catalyst

Cited by 2 publications

References 50 publications

Advanced progress in constructing carbon-coated metal materials for electrocatalytic CO2 reduction

Advanced progress in constructing carbon-coated metal materials for electrocatalytic CO2 reduction

Revealing the Effects of Mo Doping to Ni on Catalyzing Hydrogenation of Fatty Acids to Fatty Alcohols

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