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Artykuły w czasopismach na temat „Ruthenium-based catalysts”

Autor: Grafiati

Data publikacji: 7 września 2024

Data aktualizacji: 31 lipca 2025

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1

Singh, Keisham. "Recent Advances in C–H Bond Functionalization with Ruthenium-Based Catalysts." Catalysts 9, no. 2 (2019): 173. http://dx.doi.org/10.3390/catal9020173.

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The past decades have witnessed rapid development in organic synthesis via catalysis, particularly the reactions through C–H bond functionalization. Transition metals such as Pd, Rh and Ru constitute a crucial catalyst in these C–H bond functionalization reactions. This process is highly attractive not only because it saves reaction time and reduces waste,but also, more importantly, it allows the reaction to be performed in a highly region specific manner. Indeed, several organic compounds could be readily accessed via C–H bond functionalization with transition metals. In the recent past, trem

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Nahra, Fady, and Catherine S. J. Cazin. "Sustainability in Ru- and Pd-based catalytic systems using N-heterocyclic carbenes as ligands." Chemical Society Reviews 50, no. 5 (2021): 3094–142. http://dx.doi.org/10.1039/c8cs00836a.

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This review is a critical presentation of catalysts based on palladium and ruthenium bearing N-heterocyclic carbene ligands that have enabled a more sustainable approach to catalysis and to catalyst uses.

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Weissenberger, Tobias, Ralf Zapf, Helmut Pennemann, and Gunther Kolb. "Catalyst Coatings for Ammonia Decomposition in Microchannels at High Temperature and Elevated Pressure for Use in Decentralized and Mobile Hydrogen Generation." Catalysts 14, no. 2 (2024): 104. http://dx.doi.org/10.3390/catal14020104.

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We report an investigation of catalyst performance for the decomposition of ammonia under industrially relevant conditions (high temperatures of up to 800 °C and an elevated pressure of 5 bar) with further emphasis on their stability at high reaction temperatures. The catalysts were applied and tested as coatings in 500 µm wide channels of microreactors. Nickel-based catalysts were studied and compared to a ruthenium-based catalyst supported on SiO2. The effect of the support on the catalytic performance was investigated, and CeO2-supported nickel catalysts were found to exhibit the highest ac

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4

Reany, Ofer, and N. Gabriel Lemcoff. "Light guided chemoselective olefin metathesis reactions." Pure and Applied Chemistry 89, no. 6 (2017): 829–40. http://dx.doi.org/10.1515/pac-2016-1221.

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AbstractAn appealing concept in synthetic chemistry is photo-induced catalysis; where dormant complexes become catalytically active upon activation with light. The ruthenium-based olefin metathesis complexes founded on the original Grubbs catalyst have probably been one of the most widely studied families of catalysts for the past 25 years. Greater stability and versatility of these olefin-metathesis catalysts has been achieved by careful design of the ligand sphere, including latent catalysts which are activated by external stimuli. This article describes our recent developments towards light

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5

Podolean, Iunia, Mara Dogaru, Nicolae Cristian Guzo, et al. "Highly Efficient Ru-Based Catalysts for Lactic Acid Conversion to Alanine." Nanomaterials 14, no. 3 (2024): 277. http://dx.doi.org/10.3390/nano14030277.

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The primary objective of this research was to develop efficient solid catalysts that can directly convert the lactic acid (LA) obtained from lignocellulosic biomass into alanine (AL) through a reductive amination process. To achieve this, various catalysts based on ruthenium were synthesized using different carriers such as multi-walled carbon nanotubes (MWCNTs), beta-zeolite, and magnetic nanoparticles (MNPs). Among these catalysts, Ru/MNP demonstrated a remarkable yield of 74.0% for alanine at a temperature of 200 °C. This yield was found to be superior not only to the Ru/CNT (55.7%) and Ru/

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6

Chen, Hui, Runxu Deng, Shixin Gao, and Feng Liu. "Preparation of porous iridium-ruthenium-based acidic water oxidation catalyst by ascorbic acid reduction and evaporation." Journal of Physics: Conference Series 2566, no. 1 (2023): 012017. http://dx.doi.org/10.1088/1742-6596/2566/1/012017.

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Abstract Green hydrogen is the ultimate direction for energy development technology. Hereon, the porous materials of promoted iridium-ruthenium-based catalyst were prepared by ascorbic acid reduction and evaporation drying methods. The unsupported iridium ruthenium-based catalysts were porous structures, characterized by scanning electron microscopes (SEM). In 0.5 mol·L−1 H2SO4, the electrochemical oxygen precipitation reaction overpotential was only 251 mV at 10 mA·cm2, compared to commercial 303 mV. The polarization overpotential was not significantly reduced, after 20 000 cycles of accelera

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7

Abubakar, Oluwafemi David, and Thomas Hamann. "Ligand Design for Enhanced Ruthenium-Based Electrocatalytic Ammonia Oxidation." ECS Meeting Abstracts MA2025-01, no. 52 (2025): 2589. https://doi.org/10.1149/ma2025-01522589mtgabs.

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The electrocatalytic oxidation of ammonia remains a critical challenge in energy and environmental technologies, with current molecular catalysts struggling with high overpotentials, limited stability, and low turnover frequencies. Since the first molecular catalyst, [Ru(tpy)(dmabpy)NH3)]2+, was reported in 2019, there has been progress in investigating alternative ligand frameworks and transition metal centers to better understand and control the reaction. This presentation will highlight a novel strategy for improving the electrocatalytic performance by systematically optimizing ligand bite

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Truszkiewicz, Elżbieta, Wioletta Raróg-Pilecka, Magdalena Zybert, Malwina Wasilewska-Stefańska, Ewa Topolska, and Kamila Michalska. "Effect of the ruthenium loading and barium addition on the activity of ruthenium/carbon catalysts in carbon monoxide methanation." Polish Journal of Chemical Technology 16, no. 4 (2014): 106–10. http://dx.doi.org/10.2478/pjct-2014-0079.

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Abstract A group of supported ruthenium catalysts was prepared and tested in methanation of small CO amounts (7000 ppm) in hydrogen-rich streams. High surface area graphitized carbon (484 m2/g) was used as a support for ruthenium and RuCl3 was used as a Ru precursor. Some of the Ru/C systems were additionally doped with barium (Ba(NO3)2 was barium precursor). The catalysts were characterized by the chemisorption technique using CO as an adsorbate. To determine the resistance of the catalysts to undesired carbon support methanation, the TG-MS experiments were performed. They revealed that the b

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9

Zhong, He Xiang, Hua Min Zhang, and Mei Ri Wang. "Oxygen Reduction Reaction on Carbon Supported Ruthenium-Based Electrocatalysts in PEMFC." Materials Science Forum 675-677 (February 2011): 97–100. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.97.

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The ruthenium-based electrocatalysts supported on carbon black were prepared by the decarbonylation of the transition metal carbonyl with the 1,6-hexanediol as the solvent. The catalysts were characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution TEM (HRTEM). The electrochemical behaviours of the catalysts were investigated by cyclic voltammetry (CV) and rotating disk electrode (RDE) measurements in 0.5 M H2SO4 solution. The catalysts demonstrate attractive catalytic activity towards the ORR. The catalyst is expected to be promising alternative no

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10

Ma, Peng, Jiaren Zhang, Xiaqian Wu, and Jianhui Wang. "Ruthenium Metathesis Catalysts with Imidazole Ligands." Catalysts 13, no. 2 (2023): 276. http://dx.doi.org/10.3390/catal13020276.

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Phosphine-free ruthenium benzylidene complexes containing imidazole ligands are reported. These catalysts are effective for ring-closing metathesis (RCM) and cross-metathesis (CM) reactions at high temperatures, where the more widely used phosphine-containing N-heterocyclic carbene-based ruthenium catalysts show side reactions. This discovery opens up a pathway to develop more selective ruthenium metathesis catalysts for reactions requiring harsh conditions.

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11

Dunn, E., and J. Tunge. "Decarboxylative Allylation of Ketone Enolates with Rh, Ir, and Mo." Latvian Journal of Chemistry 51, no. 1-2 (2012): 31–40. http://dx.doi.org/10.2478/v10161-012-0007-x.

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Decarboxylative Allylation of Ketone Enolates with Rh, Ir, and MoA variety of catalysts were investigated for their ability to impart branched regioselectivity in decarboxylative allylation reactions. While catalysts based on Mo, Rh, and Ir were active catalysts, their regio-selectivities were low and the reactions required an equivalent of base for efficient coupling. Alternatively, a ruthenium-based catalyst was identi-fied that operates under neutral conditions and gives high branched selectivity in decarboxylative allylations.

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12

Lovic, Jelena. "The kinetics and mechanism of methanol oxidation on Pt and PtRu catalysts in alkaline and acid media." Journal of the Serbian Chemical Society 72, no. 7 (2007): 709–12. http://dx.doi.org/10.2298/jsc0707709l.

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The kinetic of methanol electrochemical oxidation for a series of platinum and platinum-ruthenium catalysts was investigated. A correlation between the beginning of OHad adsorption and methanol oxidation was demonstrated on Pt single crystals and Pt nanocatalyst. The activity of the nano-structured Pt catalyst was compared with single crystal platinum electrodes assuming the Kinoshita model of nanoparticles. The ruthenium-containing catalysts shifted the onset of methanol oxidation to more negative potentials. The effect was more pronounced in acid than in alkaline media. Based on the establis

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13

Jawiczuk, Magdalena, Anna Marczyk, and Bartosz Trzaskowski. "Decomposition of Ruthenium Olefin Metathesis Catalyst." Catalysts 10, no. 8 (2020): 887. http://dx.doi.org/10.3390/catal10080887.

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Ruthenium olefin metathesis catalysts are one of the most commonly used class of catalysts. There are multiple reviews on their uses in various branches of chemistry and other sciences but a detailed review of their decomposition is missing, despite a large number of recent and important advances in this field. In particular, in the last five years several new mechanism of decomposition, both olefin-driven as well as induced by external agents, have been suggested and used to explain differences in the decomposition rates and the metathesis activities of both standard, N-heterocyclic carbene-b

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14

Müller, Daniel S., Olivier Baslé, and Marc Mauduit. "A tutorial review of stereoretentive olefin metathesis based on ruthenium dithiolate catalysts." Beilstein Journal of Organic Chemistry 14 (December 7, 2018): 2999–3010. http://dx.doi.org/10.3762/bjoc.14.279.

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Stereoretentive olefin metathesis based on ruthenium dithiolate complexes has become a very active field of research within the past years. This unique catalyst class is able to kinetically produce both Z- and E-alkenes in high stereochemical purity (typically >95:5) starting from stereochemically pure Z- or E-alkenes. The aim of this tutorial review is to organize the reported information concerning ruthenium dithiolate catalysts in a logic manner, thus providing an "operators handbook" for chemists who wish to apply this methodology in synthesis.

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15

Daniel, Quentin, Lei Wang, Lele Duan, Fusheng Li, and Licheng Sun. "Tailored design of ruthenium molecular catalysts with 2,2′-bypyridine-6,6′-dicarboxylate and pyrazole based ligands for water oxidation." Dalton Transactions 45, no. 37 (2016): 14689–96. http://dx.doi.org/10.1039/c6dt01287f.

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A series of tailor-designed Ruthenium based water oxidation catalysts have been synthesized. By fine tuning of the catalyst structure, the turnover frequency was increased up to 500 s<sup>−1</sup>and the stability over 6000 turnovers.

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16

Vieri, Hizkia Manuel, Arash Badakhsh, and Sun Hee Choi. "Comparative Study of Ba, Cs, K, and Li as Promoters for Ru/La2Ce2O7-Based Catalyst for Ammonia Synthesis." International Journal of Energy Research 2023 (May 13, 2023): 1–11. http://dx.doi.org/10.1155/2023/2072245.

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Ammonia is one of the promising carriers for hydrogen and a critical ingredient in many industries including fertilizers and pharmaceuticals. In the KAAP process, ruthenium- (Ru-) based catalysts showed 10-20 more activity compared with iron- (Fe-) based catalysts. The modifications that are applied to Ru-based catalysts revolve around changing the material of its support and/or promoters. This study compares the performance of a Ru-based catalyst for ammonia synthesis supported by La2Ce2O7 using barium (Ba), cesium (Cs), potassium (K), and lithium (Li) as promoters. Based on structural, physi

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17

Bazhenova, Maria A., Leonid A. Kulikov, Daria A. Makeeva, Anton L. Maximov, and Eduard A. Karakhanov. "Hydrodeoxygenation of Lignin-Based Compounds over Ruthenium Catalysts Based on Sulfonated Porous Aromatic Frameworks." Polymers 15, no. 23 (2023): 4618. http://dx.doi.org/10.3390/polym15234618.

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Bifunctional catalysts are a major type of heterogeneous catalytic systems that have been widely investigated for biomass upgrading. In this work, Ru-catalysts based on sulfonated porous aromatic frameworks (PAFs) were used in the hydrodeoxygenation (HDO) of lignin-derived compounds: guaiacol, veratrole, and catechol. The relationship between the activity of metal nanoparticles and the content of acid sites in synthesized catalysts was studied. Herein, their synergy was demonstrated in the Ru-PAF-30-SO3H/5-COD catalyst. The results revealed that this catalytic system promoted partial hydrogena

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18

Gutiérrez-Flores, Selena, Lidia García-Barrera, Daniel Zárate-Saldaña, and Jorge A. Cruz-Morales. "Synthesis of heterogeneous metathesis catalysts for the development of sustainable processes." Renewable Energy, Biomass & Sustainability 3, no. 1 (2022): 75–85. http://dx.doi.org/10.56845/rebs.v3i1.40.

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 In recent decades, it has been tried to develop processes that involve the use of catalysts that can be recovered from the reaction medium, to make them green and sustainable. Approximately, 90 % of all processes in chemistry and petrochemicals use heterogeneous catalysts. In this sense, the supported heterogeneous catalysts present advantages in the purification of the products and the reduction of costs. In the present work, the synthesis of a new heterogeneous supported catalyst, highly active in the metathesis reaction, based on a ruthenium-alkylidene complex, was carried out. The n

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19

Thongboon, Surached, Pacharaporn Rittiron, Danusorn Kiatsaengthong, Thanaphat Chukeaw, and Anusorn Seubsai. "Propylene Epoxidation to Propylene Oxide Over RuO2, CuO, TeO2, and TiO2 Supported on Modified Mesoporous Silicas." Journal of Nanoscience and Nanotechnology 20, no. 6 (2020): 3466–77. http://dx.doi.org/10.1166/jnn.2020.17408.

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Direct gas phase epoxidation of propylene to propylene oxide (PO) using O2 is a challenging problem in catalysis research. Silica-supported ruthenium-copper-based catalysts have been recently reported to be promising for propylene epoxidation. In this work, mesoporous silica supports modified with RuO2, CuO, and TeO2 with and without TiO2 were investigated for propylene epoxidation to PO. The prepared catalysts were divided into two groups. The first group consisted of mesoporous silica supports modified with RuO2, CuO, and TeO2, and the second group consisted of the same components as the fir

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Pye, Scott J., Justin M. Chalker, and Colin L. Raston. "Vortex Fluidic Ethenolysis, Integrating a Rapid Quench of Ruthenium Olefin Metathesis Catalysts." Australian Journal of Chemistry 73, no. 12 (2020): 1138. http://dx.doi.org/10.1071/ch20005.

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Ruthenium-catalysed ethenolysis occurs in a vortex fluidic device (VFD) – a scalable, thin-film microfluidic continuous flow process. This process takes advantage of the efficient mass transfer of gaseous reagents into the dynamic thin film of liquid. Also reported is the rapid quenching of the ruthenium-based olefin metathesis catalyst by the addition of a saturated solution of N-acetyl-l-cysteine in MeCN, as a convenient alternative to previously reported quenching methods.

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Drummond, Samuel M., Jennifer Naglic, Thossaporn Onsree, et al. "Promoted Ru/PrOx Catalysts for Mild Ammonia Synthesis." Catalysts 14, no. 9 (2024): 572. http://dx.doi.org/10.3390/catal14090572.

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Ammonia synthesis is one of the most important chemical reactions. Due to thermodynamic restrictions and the reaction requirements of the current commercial iron catalysts, it is also one of the worst reactions for carbon dioxide emissions and energy usage. Ruthenium-based catalysts can substantially improve the environmental impact as they operate at lower pressures and temperatures. In this work, we provide a screening of more than 40 metals as possible promoter options based on a Ru/Pr2O3 catalyst. Cesium was the best alkali promoter and was held constant for the series of double-promoted c

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Sun, Xiandi, Zhiyuan Cheng, Hang Liu, Siyu Chen, and Ya-Rong Zheng. "Porous Ruthenium–Tungsten–Zinc Nanocages for Efficient Electrocatalytic Hydrogen Oxidation Reaction in Alkali." Nanomaterials 14, no. 9 (2024): 808. http://dx.doi.org/10.3390/nano14090808.

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With the rapid development of anion exchange membrane technology and the availability of high-performance non-noble metal cathode catalysts in alkaline media, the commercialization of anion exchange membrane fuel cells has become feasible. Currently, anode materials for alkaline anion-exchange membrane fuel cells still rely on platinum-based catalysts, posing a challenge to the development of efficient low-Pt or Pt-free catalysts. Low-cost ruthenium-based anodes are being considered as alternatives to platinum. However, they still suffer from stability issues and strong oxophilicity. Here, we

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Lin, Bi-Li, Xing Chen, Bai-Tong Niu, Yuan-Ting Lin, Yan-Xin Chen, and Xiu-Mei Lin. "The Research Progress of Ruthenium-Based Catalysts for the Alkaline Hydrogen Evolution Reaction in Water Electrolysis." Catalysts 14, no. 10 (2024): 671. http://dx.doi.org/10.3390/catal14100671.

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The performance of the cathodic hydrogen evolution reaction (HER) in alkaline water electrolysis, an attractive hydrogen production technology, is highly dependent on efficient catalysts. Ruthenium (Ru), which is more affordable than platinum (Pt) and has a metal–hydrogen bond strength comparable to that of Pt, shows exceptional catalytic activity for the alkaline HER. Consequently, in recent years, research in the field of hydrogen production through alkaline water electrolysis has increasingly focused on Ru as a key element. This review first discusses the fundamentals of the alkaline HER, i

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Lei, Y. J., X. B. Wang, C. Song, F. H. Li, and X. R. Wang. "A study on ruthenium-based catalysts for pharmaceutical wastewater treatment." Water Science and Technology 64, no. 1 (2011): 117–21. http://dx.doi.org/10.2166/wst.2011.585.

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Ruthenium-based catalysts were prepared by a saturation-dip method. Their catalytic activity was evaluated by a catalytic wet oxidation (CWO) process. The ruthenium-based catalysts were used to purify organic pharmaceutical wastewater with high concentration pyridine and pyridine derivatives that have high chemical oxygen demand (COD). In the CWO process, organic pharmaceutical wastewater was continuously pumped into fixed-bed reactors filled with Ru-based catalysts, while the organic components in wastewater were catalytically degraded by oxygen at high temperatures and pressures (temperature

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Sanford, Melanie S, Lawrence M Henling, Michael W Day, and Robert H Grubbs. "Ruthenium-Based Four-Coordinate Olefin Metathesis Catalysts." Angewandte Chemie 112, no. 19 (2000): 3593–95. http://dx.doi.org/10.1002/1521-3757(20001002)112:19<3593::aid-ange3593>3.0.co;2-m.

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Sanford, Melanie S, Lawrence M Henling, Michael W Day, and Robert H Grubbs. "Ruthenium-Based Four-Coordinate Olefin Metathesis Catalysts." Angewandte Chemie 39, no. 19 (2000): 3451–53. http://dx.doi.org/10.1002/1521-3773(20001002)39:19<3451::aid-anie3451>3.0.co;2-u.

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Villani, Kenneth, Christine E. A. Kirschhock, Duoduo Liang, Gustaaf Van Tendeloo, and Johan A. Martens. "Catalytic Carbon Oxidation Over Ruthenium-Based Catalysts." Angewandte Chemie 118, no. 19 (2006): 3178–81. http://dx.doi.org/10.1002/ange.200503799.

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Villani, Kenneth, Christine E. A. Kirschhock, Duoduo Liang, Gustaaf Van Tendeloo, and Johan A. Martens. "Catalytic Carbon Oxidation Over Ruthenium-Based Catalysts." Angewandte Chemie International Edition 45, no. 19 (2006): 3106–9. http://dx.doi.org/10.1002/anie.200503799.

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Simonneaux, Gérard, and Pietro Tagliatesta. "Metalloporphyrin catalysts for organic synthesis." Journal of Porphyrins and Phthalocyanines 08, no. 09 (2004): 1166–71. http://dx.doi.org/10.1142/s1088424604000507.

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Novel chiral systems for the catalytic asymmetric oxidation and cyclopropanation of olefins based on metalloporphyrins containing iron, ruthenium and manganese, have been recently introduced. High catalyst turnover numbers and sometimes high enantiomeric excess were observed. New catalytic reactions with metalloporphyrins have recently been reported; these are the olefination of aldehydes and cyclotrimerization of terminal alkynes. Dendrimers and polymers containing metalloporphyrins, have also been found to be efficient catalysts for oxidation and carbene transfer.

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Melián-Rodríguez, Saravanamurugan, Meier, Kegnæs, and Riisager. "Ru-Catalyzed Oxidative Cleavage of Guaiacyl Glycerol--Guaiacyl Ether-a Representative -O-4 Lignin Model Compound." Catalysts 9, no. 10 (2019): 832. http://dx.doi.org/10.3390/catal9100832.

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The introduction of efficient and selective catalytic methods for aerobic oxidation of lignin and lignin model compounds to aromatics can extend the role of lignin applications in biorefineries. The current study focussed on the catalytic oxidative transformation of guaiacyl glycerol--guaiacyl ether (GGGE)–a -O-4 lignin model compound to produce basic aromatic compounds (guaiacol, vanillin and vanillic acid) using metal-supported catalysts. Ru/Al2O3, prepared with ruthenium(IV) oxide hydrate, showed the highest yields of the desired products (60%) in acetonitrile in a batch reactor at 160 C an

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Stepacheva, A., A. Simanova, and M. Monzharenko. "Ruthenium catalyst for fatty alcohols production." Bulletin of Science and Practice 4, no. 12 (2018): 106–12. https://doi.org/10.5281/zenodo.2255007.

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The current work is devoted to the study of fatty acid carboxylic group hydrogenation in order to obtain fatty alcohols which are the valuable products for fine chemistry. The catalysts based on the ruthenium impregnated into hypercrosslinked polystyrene (HPS) were used in the process. The influence of the type of support and metal loading on the yield of hydrogenation products was evaluated. Three different types of HPS were used as the catalyst supports non-functionalized, modified with amino– and sulfonic groups. The catalyst based on HPS modified with sulfonic groups showed good sele

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Michrowska, Anna, and Karol Grela. "Quest for the ideal olefin metathesis catalyst." Pure and Applied Chemistry 80, no. 1 (2008): 31–43. http://dx.doi.org/10.1351/pac200880010031.

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Attempts were made to create a catalyst that approaches Gladysz's vision of an "ideal catalyst". Modifications of the Hoveyda-Grubbs catalyst were carried out with the aim to increase its activity and broaden the scope of its applicability to challenging metathesis reactions. This was done by introduction of an electron-withdrawing substituent on the isopropoxybenzylidene group in order to diminish the donor properties of the oxygen atom. The resulting stable and easily accessible nitro-substituted Hoveyda-Grubbs catalyst has found a number of successful applications in various research and in

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Pieczykolan, Michał, Justyna Czaban-Jóźwiak, Maura Malinska, et al. "The Influence of Various N-Heterocyclic Carbene Ligands on Activity of Nitro-Activated Olefin Metathesis Catalysts." Molecules 25, no. 10 (2020): 2282. http://dx.doi.org/10.3390/molecules25102282.

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A set of nitro-activated ruthenium-based Hoveyda-Grubbs type olefin metathesis catalysts bearing sterically modified N-hetero-cyclic carbene (NHC) ligands have been obtained, characterised and studied in a set of model metathesis reactions. It was found that catalysts bearing standard SIMes and SIPr ligands (4a and 4b) gave the best results in metathesis of substrates with more accessible C–C double bonds. At the same time, catalysts bearing engineered naphthyl-substituted NHC ligands (4d–e) exhibited high activity towards formation of tetrasubstituted C–C double bonds, the reaction which was

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Yim, Kyungmin, Yoomo Koo, Sung Jong Yoo, and Jinsoo Kim. "Facile Spray Pyrolysis Synthesis of Ruthenium Single-Atomic Catalyst with High Activity and Stability for Hydrogen Evolution Reactions over a Wide pH Range." ECS Meeting Abstracts MA2022-01, no. 34 (2022): 1394. http://dx.doi.org/10.1149/ma2022-01341394mtgabs.

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Electrochemical water splitting is an economic, green and sustainable route to produce hydrogen through the hydrogen evolution reaction (HER). Nowadays, ruthenium is an efficient catalyst with a desirable cost for HER. Doping Ru with a transition metal oxide was recently shown to greatly boost the activity and durability of the HER, even with small amounts of ruthenium based electrocatalysts. It also reduced total amount of Ru. Recent literature reported that Ru-O-Mo sites have better HER than Ru single atom due to significantly improved H2O adsorption. Among the various synthetic method, spra

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Telleria, A., P. W. N. M. van Leeuwen, and Z. Freixa. "Azobenzene-based ruthenium(ii) catalysts for light-controlled hydrogen generation." Dalton Transactions 46, no. 11 (2017): 3569–78. http://dx.doi.org/10.1039/c7dt00542c.

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Echeverri, David Alexander, Luis Alberto Rios, and Juan Miguel Marín. "Synthesising unsaturated fatty alcohols from fatty methyl esters using catalysts based on ruthenium and tin supported on alumina." Ingeniería e Investigación 31, no. 1 (2011): 74–82. http://dx.doi.org/10.15446/ing.investig.v31n1.20528.

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Most promising catalysts for synthesising unsaturated fatty alcohols are based on group 8 metals with a promoter like tin, because the process can be carried out in moderate conditions, and these metals are less toxic than chromium. There have been no reports about the use of this catalyst to date using raw materials like methyl ester blends or evaluation reusing catalysts. This paper presents the hydrogenation of methyl esters from palm oil and commercial methyl oleate with Ru-Sn/Al2O3 catalysts prepared by impregnation, at moderate pressure and temperature (5 MPa and 270°C). Greater selectiv

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Zhang, Yajing, Qian Wang, Zongsheng Yan, Donglai Ma, and Yuguang Zheng. "Visible-light-mediated copper photocatalysis for organic syntheses." Beilstein Journal of Organic Chemistry 17 (October 12, 2021): 2520–42. http://dx.doi.org/10.3762/bjoc.17.169.

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Photoredox catalysis has been applied to renewable energy and green chemistry for many years. Ruthenium and iridium, which can be used as photoredox catalysts, are expensive and scarce in nature. Thus, the further development of catalysts based on these transition metals is discouraged. Alternative photocatalysts based on copper complexes are widely investigated, because they are abundant and less expensive. This review discusses the scope and application of photoinduced copper-based catalysis along with recent progress in this field. The special features and mechanisms of copper photocatalysi

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Ogba, O. M., N. C. Warner, D. J. O’Leary, and R. H. Grubbs. "Recent advances in ruthenium-based olefin metathesis." Chemical Society Reviews 47, no. 12 (2018): 4510–44. http://dx.doi.org/10.1039/c8cs00027a.

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Ruthenium-based olefin metathesis catalysts, known for their functional group tolerance and broad applicability in organic synthesis and polymer science, continue to evolve as an enabling technology in these areas.

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Borisov, Vadim A., Zaliya A. Fedorova, Victor L. Temerev, et al. "Ceria–Zirconia-Supported Ruthenium Catalysts for Hydrogen Production by Ammonia Decomposition." Energies 16, no. 4 (2023): 1743. http://dx.doi.org/10.3390/en16041743.

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Сommercial cerium–zirconium oxide supports (Ce0.5Zr0.5O2, Ce0.75Zr0.25O2, and Ce0.4Zr0.5Y0.05La0.05O2) were used to prepare Ru/CeZrOx catalysts. According to the XRD and IR spectroscopy data, the supports consist of ceria-based substitutional solid solutions. The specific surface areas of supports and catalysts are similar and range from 71–89 m2/g. As shown by TEM and XRD methods, the size of support particles equals 6–11 nm. According to the TEM data, the size of ruthenium particles does not exceed 1.3 nm. The catalyst activity in the ammonia decomposition process was studied. The Ru/Ce0.75Z

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Martins, Joana A., A. Catarina Faria, Miguel A. Soria, Carlos V. Miguel, Alírio E. Rodrigues, and Luís M. Madeira. "CO2 Methanation over Hydrotalcite-Derived Nickel/Ruthenium and Supported Ruthenium Catalysts." Catalysts 9, no. 12 (2019): 1008. http://dx.doi.org/10.3390/catal9121008.

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In this work, in-house synthesized NiMgAl, Ru/NiMgAl, and Ru/SiO2 catalysts and a commercial ruthenium-containing material (Ru/Al2O3com.) were tested for CO2 methanation at 250, 300, and 350 °C (weight hourly space velocity, WHSV, of 2400 mLN,CO2·g−1·h−1). Materials were compared in terms of CO2 conversion and CH4 selectivity. Still, their performances were assessed in a short stability test (24 h) performed at 350 °C. All catalysts were characterized by temperature programmed reduction (TPR), X-ray diffraction (XRD), N2 physisorption at −196 °C, inductively coupled plasma optical emission spe

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Shultz, Lorianne R., Corbin Feit, Jordan Stanberry, et al. "Ultralow Loading Ruthenium on Alumina Monoliths for Facile, Highly Recyclable Reduction of p-Nitrophenol." Catalysts 11, no. 2 (2021): 165. http://dx.doi.org/10.3390/catal11020165.

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The pervasive use of toxic nitroaromatics in industrial processes and their prevalence in industrial effluent has motivated the development of remediation strategies, among which is their catalytic reduction to the less toxic and synthetically useful aniline derivatives. While this area of research has a rich history with innumerable examples of active catalysts, the majority of systems rely on expensive precious metals and are submicron- or even a few-nanometer-sized colloidal particles. Such systems provide invaluable academic insight but are unsuitable for practical application. Herein, we

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Zhang, Rui. "Research Progress on Ruthenium-based Electrocatalysts for Oxygen Evolution Reaction in Water Electrolysis." Frontiers in Sustainable Development 5, no. 2 (2025): 46–49. https://doi.org/10.54691/nghjpc58.

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Water electrolysis, as a green hydrogen production technology, involves both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER). Researchers have been dedicated to developing high-activity, low-cost electrocatalytic materials for water electrolysis. Among these, ruthenium (Ru)-based OER materials stand out due to their exceptional catalytic activity, universality, and relatively low cost within the precious metal family, making them highly promising for future development. This paper provides a comprehensive review of recent advances in Ru-based catalytic materials,

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Orlando, Antonio, Fiorella Lucarini, Elisabetta Benazzi, Federico Droghetti, Albert Ruggi, and Mirco Natali. "Rethinking Electronic Effects in Photochemical Hydrogen Evolution Using CuInS2@ZnS Quantum Dots Sensitizers." Molecules 27, no. 23 (2022): 8277. http://dx.doi.org/10.3390/molecules27238277.

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Molecular catalysts based on coordination complexes for the generation of hydrogen via photochemical water splitting exhibit a large versatility and tunability of the catalytic properties through chemical functionalization. In the present work, we report on light-driven hydrogen production in an aqueous solution using a series of cobalt polypyridine complexes as hydrogen evolving catalysts (HECs) in combination with CuInS2@ZnS quantum dots (QDs) as sensitizers, and ascorbate as the electron donor. A peculiar trend in activity has been observed depending on the substituents present on the polyp

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Shi, Wenbo, Xiaolong Liu, Junlin Zeng, Jian Wang, Yaodong Wei, and Tingyu Zhu. "Gas-solid catalytic reactions over ruthenium-based catalysts." Chinese Journal of Catalysis 37, no. 8 (2016): 1181–92. http://dx.doi.org/10.1016/s1872-2067(15)61124-x.

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Smit, Wietse, Vitali Koudriavtsev, Giovanni Occhipinti, Karl W. Törnroos, and Vidar R. Jensen. "Phosphine-Based Z-Selective Ruthenium Olefin Metathesis Catalysts." Organometallics 35, no. 11 (2016): 1825–37. http://dx.doi.org/10.1021/acs.organomet.6b00214.

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Lozano-Vila, Ana M., Stijn Monsaert, Agata Bajek, and Francis Verpoort. "Ruthenium-Based Olefin Metathesis Catalysts Derived from Alkynes." Chemical Reviews 110, no. 8 (2010): 4865–909. http://dx.doi.org/10.1021/cr900346r.

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Vougioukalakis, Georgios C., and Robert H. Grubbs. "Ruthenium-Based Heterocyclic Carbene-Coordinated Olefin Metathesis Catalysts†." Chemical Reviews 110, no. 3 (2010): 1746–87. http://dx.doi.org/10.1021/cr9002424.

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Tijani, Amina, Bernard Coq, and François Figueras. "Hydrogenation ofpara-chloronitrobenzene over supported ruthenium-based catalysts." Applied Catalysis 76, no. 2 (1991): 255–66. http://dx.doi.org/10.1016/0166-9834(91)80051-w.

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KHAN, F., and N. SAHU. "Highly efficient and recyclable ruthenium-based supported catalysts." Journal of Catalysis 231, no. 2 (2005): 438–42. http://dx.doi.org/10.1016/j.jcat.2005.02.001.

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Harvey, Timothy G., Trevor W. Matheson, Kerry C. Pratt, and Mark S. Stanborought. "Hydroprocessing of shale oil using ruthenium-based catalysts." Fuel 66, no. 6 (1987): 766–70. http://dx.doi.org/10.1016/0016-2361(87)90121-9.

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