Article
Chemistry, Physical
Samuel Carlier, Jim Gripekoven, Martin Philippo, Sophie Hermans
Summary: The study attempted a two-steps transformation of cellobiose using a single catalytic material, successfully hydrogenating glucose into sorbitol with Ru nanoparticles on carbon supports. N-doped carbon materials increased the activity of Ru nanoparticles but had no effect on cellobiose hydrolysis. The bifunctional catalysts showed no signs of deactivation after repeated use.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Energy & Fuels
Mariappan Mani, Lakhya Jyoti Konwar
Summary: Ru/N-doped activated carbon/NbOPO4 material with unique surface chemistry demonstrates exceptional catalytic activity for hydrolytic hydrogenation of cellobiose into sorbitol. The multifunctional catalyst was synthesized by mechanically grinding NbOPO4 with Ru/N-doped activated carbon and showed superior performance to benchmark Ru catalysts. The catalyst exhibited high stability in a fixed-bed reactor under continuous flow conditions.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Environmental
N. H. R. Annuar, Z. A. Alexzman, A. R. M. Daud, A. F. N. Alias, H. M. Hairi, H. D. Setiabudi
Summary: The increase in greenhouse gas emissions due to high consumption of fossil fuels is a major contributor to climate change. Catalytic hydrogenolysis of sorbitol is considered as an alternative approach to address this issue. However, catalyst deactivation has hindered its industrial application. Finding better catalysts to enhance the performance of hydrogenolysis reactions is of significant interest.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Ran Xi, Yiwei Tang, Richard Lee Smith Jr, Xiaoning Liu, Le Liu, Xinhua Qi
Summary: Ni-Ru bimetallic porous carbon sphere catalysts were synthesized using formaldehyde-assisted, metal-coordinated crosslinking sol-gel chemistry. The catalysts showed excellent stability and recyclability in the selective hydrogenation of glucose to sorbitol, even under high temperature and high concentration conditions.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Esther Frecha, Javier Remon, Daniel Torres, Isabel Suelves, Jose Luis Pinilla
Summary: The direct conversion of cellulose into sugar alcohols using nickel catalysts supported on carbon nanofibers is an attractive chemical route for biomass valorization. The design of the catalyst plays a crucial role in determining its hydrogenation ability and thus the effectiveness of the conversion process. This study investigates the effects of different impregnation techniques on the properties of the catalysts, and establishes a link between these properties and their reactivity in the hydrolytic hydrogenation of cellobiose. The findings suggest that a compromise between the surface area and resistance against oxidation of the catalyst is crucial for achieving high conversion rates.
FRONTIERS IN CHEMISTRY
(2022)
Article
Agricultural Engineering
Nikolay V. Gromov, Tatiana B. Medvedeva, Yulia A. Rodikova, Maria N. Timofeeva, Valentina N. Panchenko, Oxana P. Taran, Ivan V. Kozhevnikov, Valentin N. Parmon
Summary: This study investigated the one-pot synthesis of sorbitol using Ru-containing composites based on H3PW12O40 supported on ZrO2 and Nb2O5 as catalysts. The results showed that Ru-PW/ZrO2 systems were more active than Ru-PW/Nb2O5, with the highest sorbitol yield observed under certain specific reaction conditions. The catalyst showed good stability for multiple reaction cycles without loss of activity.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xin Chen, Yanni Zheng, Qian Zhang, Songbai Qiu, Qingwei Meng, Xiaoping Wu, Tiejun Wang
Summary: The study proposed a method for synthesizing renewable 1-hexanol from sorbitol derived from biomass in water phase deoxygenation reaction for the first time, demonstrating the efficiency of molybdenum carbide catalyst in this process.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Giada Innocenti, Stefan Emig, Lars Meyer, Matthias Mueller, Schirin Hanf, Stephan A. Schunk, Alois M. Kindler, Carsten Sievers
Summary: In situ infrared spectroscopy is used to study the hydrogenolysis of tetrahydrofurfuryl alcohol on Ru/SiO2 and SiO2. The key intermediate, hydroxy valeraldehyde, can undergo hydrogenation or the Tishchenko reaction. Both reactions produce 1,5-pentanediol, but the latter also produces hydroxyvaleric acid, which can polymerize on the catalyst surface.
Article
Chemistry, Multidisciplinary
Xin Xiao, San Hua Lim, Wei Chu, Yan Liu
Summary: Tailoring the metal properties over N-doped carbon materials is crucial for lignocellulose/cellobiose hydrogenation reactions. By adjusting the metal-support interaction and optimizing the content of N, excellent catalytic performance was achieved, indicating N-doped carbon materials as promising supports for a wide range of biomass hydrogenation.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Yaxuan Jing, Yanqin Wang, Shinya Furukawa, Jie Xia, Chengyang Sun, Max J. Hulsey, Haifeng Wang, Yong Guo, Xiaohui Liu, Ning Yan
Summary: By catalytic hydrogenolysis using a Ru/Nb2O5 catalyst, various aromatic plastic wastes containing C-O and/or C-C linkages can be upgraded to arenes, presenting a new approach to addressing the environmental impact of plastic waste.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Rebekah J. Jeans, Georgina M. Rosair, Alan J. Welch
Summary: This study presents the first example of controlled isomerization of a C,C'-bound bis(ortho-carborane) ligand to a C,B'-bound form without altering the rest of the molecule's structure. The different electron-donating properties of the C and B vertices in carboranes allow for fine-tuning the reactivity of the metal center.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Jordan Gonzaga Andrade Batista Silva, Ronaldo Costa Santos, Enrique Rodriguez-Castellon, Leonardo Sena Gomes Teixeira, Luiz Antonio Magalhaes Pontes
Summary: This study focused on the synthesis of sorbitol using Ru/Nb2O5 catalysts, with better results obtained when using crystalline phase Nb2O5 as a support. Structural modification of the catalytic support positively affected catalyst activity and sorbitol production.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Isaline Bonnin, Raphael Mereau, Thierry Tassaing, Francois Jerome, Karine De Oliveira Vigier
Summary: In this study, hydrogenation of glucose to sorbitol was successfully achieved using a commercial Ru/Al2O3 catalyst with a high yield of 97%. The catalyst exhibited stability due to reactivation under hydrogen during the reaction, maintaining its activity and showing low Ru leaching and consistent particle sizes. Additionally, the catalyst was also effective in hydrogenating other sugars to sugar alcohols, demonstrating outstanding stability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Maria Anderez, Oscar Benito-Roman, Alberto Romero, Esther Alonso
Summary: Ru/MCM48 catalyst is effective in the hydrolysis of cellobiose at high temperature, with good performance in one-pot hydrolytic hydrogenation as well.
Article
Biotechnology & Applied Microbiology
Anna Ylinen, Jorg C. de Ruijter, Paula Jouhten, Merja Penttila
Summary: This study demonstrated the production of poly(hydroxybutyrate) (PHB) in yeast Saccharomyces cerevisiae using cellobiose as a sole carbon source. Utilizing different cellobiose utilization routes led to increased PHB production and accumulation percentage, offering a promising solution for sustainable polymer production using microbial cells.
MICROBIAL CELL FACTORIES
(2022)
