Article
Chemistry, Multidisciplinary
Lilia Longo, Somayeh Taghavi, Elena Ghedini, Federica Menegazzo, Alessandro Di Michele, Giuseppe Cruciani, Michela Signoretto
Summary: This study focuses on the development of sustainable and efficient catalysts for the selective hydrogenation of HMF to HHD using Ru supported on activated biochars. Activated biochars derived from different biomasses show distinct properties, with A(HSw) displaying better trapping and anchoring of Ru nanoparticles, leading to higher catalytic activity.
Review
Chemistry, Inorganic & Nuclear
Han Peng, Vincent Ritleng, Christophe Michon
Summary: This article reviews the development of supported Noyori-Ikariya catalysts based on ruthenium, rhodium, and iridium for asymmetric transfer hydrogenation and related tandem reactions over the past 7 years. It highlights and discusses the synthesis, reactivity, and recycling of these catalysts.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Marcus S. Lehnertz, Joel B. Mensah, Regina Palkovits
Summary: In this study, a novel protocol for catalytic depolymerisation of bio-based polyhydroxybutyrate and polylactic acid over Ru/CeO2 was presented. The corresponding monomers, 3-hydroxybutyric acid and lactic acid, were obtained with high yields of 79% and 94% respectively. Furthermore, the transformation of a mixture of both biopolyesters was also possible with comparable results.
Review
Chemistry, Physical
Muhammad Akram, Seerat Ul Ain Bhutto, Sikandar Aftab, Fengyun Wang, Xing Xu, Mingzhu Xia
Summary: This review summarizes the latest research progress on the hydrogenation of furfural using carbon-supported ruthenium catalysts. By evaluating experimental studies, it analyzes the impact of reaction conditions such as temperature, hydrogen pressure, stirring speed, and reaction duration on the hydrogenation reaction. The review suggests that future research should focus on discovering more efficient carbon-supported ruthenium catalysts and optimizing the hydrogenation process of furfural.
Review
Biochemistry & Molecular Biology
Vincent Ritleng, Johannes G. de Vries
Summary: This review focuses on the synthesis and application of ruthenacycles and iridacycles in hydrogen transfer reactions, specifically in (asymmetric) transfer hydrogenation of aldehydes, ketones, and imines, as well as some oxidation reactions.
Article
Chemistry, Physical
Kahoko Kato, Dian Deng, Yusuke Kita, Keigo Kamata, Michikazu Hara
Summary: Heterogeneous transition metal catalysts play an important role in the selective synthesis of primary amines. We have discovered a composite material composed of metallic cobalt and silica particles, which exhibits high catalytic performance under mild conditions and addresses the selectivity issues in the production of secondary and tertiary amines. Mechanistic studies revealed that the substrate nitrile and the product amine hinder the hydrogenation of secondary imine intermediates, resulting in a selective reaction. Additionally, the addition of coordinating organic molecules further improves the selectivity for primary amines.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Denise Lovison, Tobias Berghausen, Sophie R. Thomas, Jonathan Robson, Markus Drees, Christian Jandl, Alexander Poethig, Patrick Mollik, Dominik P. Halter, Walter Baratta, Angela Casini
Summary: In this study, water-soluble organometallic Ru(II) complexes were synthesized and found to act as anticancer agents by catalyzing transfer hydrogenation reactions with biomolecules. The structure-activity relationship and reaction mechanism were investigated, and the compounds were also tested for their anticancer activity in vitro.
Article
Chemistry, Physical
Alessandro Belle, Kohei Kusada, Hiroshi Kitagawa, Alvise Perosa, Lidia Castoldi, Daniele Polidoro, Maurizio Selva
Summary: The new C-supported bimetallic Ru-WOx catalysts showed high efficiency and stability in the liquid-phase hydrogenolysis of aqueous glycerol into 1,2-propanediol, with high selectivity towards the desired product.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Claudia E. Berdugo-Diaz, Yang Sik Yun, Melissa T. Manetsch, Jing Luo, David G. Barton, Xue Chen, David W. Flaherty
Summary: The direct reduction of esters to ethers offers an efficient pathway to obtain ethers from renewable intermediates. This study elucidates the reaction pathways of propyl acetate in the presence of hydrogen over Pd nanoparticles supported on high-surface area Nb2O5. The results show that esters react via three primary pathways, leading to the formation of different products. The formation of ethers is not affected by the pressure of C5H10O2 but is dependent on the pressure of H-2.
Article
Chemistry, Applied
Juan J. Musci, Maia Montana, Andrea B. Merlo, Elena Rodriguez-Aguado, Juan A. Cecilia, Enrique Rodriguez-Castellon, Ileana D. Lick, Monica L. Casella
Summary: This paper investigates the performance of a series of catalysts supported on different materials in the furfural hydrogenation reaction, and finds that the catalytic activity depends on both the metal particle size and dispersion, as well as the characteristics of the support.
Article
Engineering, Chemical
Ahmed K. AlAsseel, S. David Jackson
Summary: An investigation was conducted to study the feasibility of using 5% nickel/alumina catalysts synthesized with different methods and metal precursors for the hydrogenation of tetralin. The study found that there was a significant difference in selectivity and deactivation patterns among these catalysts, with the isomer ratio of the product being governed by kinetics.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Peter J. Topalian, Bo A. Carrillo, Paul M. Cochran, Michael F. Takemura, Mark E. Bussell
Summary: A series of Ni2-xRuxP/SiO2 catalysts were prepared spanning the full composition space, with Ru playing a key role in lowering the precursor reduction temperature and increasing the P content in the supported Ni2-xRuxP phase. Catalysts with higher Ru content exhibited significantly enhanced HDS activity and selectivity.
JOURNAL OF CATALYSIS
(2021)
Review
Chemistry, Multidisciplinary
Xingyu Qi, Tatsuya Shinagawa, Fuminao Kishimoto, Kazuhiro Takanabe
Summary: This paper discusses the chemical potential of electrons in solid catalysts during thermal catalysis, and proposes the use of electrochemical tools to quantify the illdefined chemical potentials of solids. Additionally, electrochemical means can directly perturb catalyst potentials, affecting the coverage of adsorbates.
Article
Chemistry, Multidisciplinary
Lingling Li, Ya-Fei Jiang, Tianhua Zhang, Hongfang Cai, Yanliang Zhou, Bingyu Lin, Xingyi Lin, Ying Zheng, Lirong Zheng, Xiuyun Wang, Cong-Qiao Xu, Chak-tong Au, Lilong Jiang, Jun Li
Summary: The study investigates the synthesis of Ru catalysts with different sizes, and finds that sub-nanometric Ru atomic clusters display superior performance and high turnover frequency in NH3 synthesis compared to nanoparticles.
Article
Chemistry, Physical
Andrey M. Kovalskii, Ilia N. Volkov, Nikolay D. Evdokimenko, Olga P. Tkachenko, Denis V. Leybo, Ilya V. Chepkasov, Zakhar I. Popov, Andrei T. Matveev, Anton Manakhov, Elizaveta S. Permyakova, Anton S. Konopatsky, Alexander L. Kustov, Dmitri V. Golberg, Dmitry V. Shtansky
Summary: The catalytic performance of Au/h-BN(O) and Pt/h-BN(O) nanohybrids in CO oxidation and CO2 hydrogenation reactions were thoroughly analyzed, with Pt/h-BN(O) nanohybrids demonstrating higher catalytic activity. Additionally, the particle size and distribution of catalysts also have an impact on catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
