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Kaikhosravi M, Hadadzadeh H, Farrokhpour H, Salimi A, Mohtasham H, Foelske A, Sauer M. A combined experimental and theoretical study of RuO 2/TiO 2 heterostructures as a photoelectrocatalyst for hydrogen evolution. Dalton Trans 2023; 52:3472-3481. [PMID: 36843449 DOI: 10.1039/d2dt04123e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We report a joint experimental and theoretical study of RuO2/TiO2 heterostructures. In the experimental section, mesoporous RuO2/TiO2 heterostructures were prepared by impregnation of mesoporous TiO2 nanoparticles which were synthesized from a new precursor, Na2[Ti(C2O4)3], in an aqueous solution of ruthenium(III) chloride followed by calcination at 300 °C. Using various techniques, the prepared TiO2 and RuO2/TiO2 heterostructures were extensively characterized. The photoelectocatalytic application of the as-prepared heterostructures was then investigated toward the hydrogen evolution reaction (HER). The results illustrated that RuO2 is dispersed uniformly on the TiO2 surface. The loading of RuO2 on TiO2 decreases the band gap energy and extends the absorption edge to the visible light region. This wide absorption extends the photoelectrocatalytic activity of RuO2/TiO2 heterostructures. To obtain a deeper understanding of the increase of the photoelectrocatalytic activity of RuO2/TiO2 heterostructures compared to pure TiO2, theoretical calculations at the density functional theory (DFT) level were performed on some model clusters of pure TiO2 and the RuO2/TiO2 heterostructure. The theoretical results elucidated that the recombination ratio of electron-hole pairs decreases effectively for RuO2/TiO2 compared to pure TiO2.
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Affiliation(s)
- Mohammad Kaikhosravi
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hassan Hadadzadeh
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hossein Farrokhpour
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Hamed Mohtasham
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Annette Foelske
- Analytical Instrumentation Center, TU Wien, Lehargasse 6, 1060 Vienna, Austria
| | - Markus Sauer
- Analytical Instrumentation Center, TU Wien, Lehargasse 6, 1060 Vienna, Austria
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2
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Qu R, Junge K, Beller M. Hydrogenation of Carboxylic Acids, Esters, and Related Compounds over Heterogeneous Catalysts: A Step toward Sustainable and Carbon-Neutral Processes. Chem Rev 2023; 123:1103-1165. [PMID: 36602203 DOI: 10.1021/acs.chemrev.2c00550] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The catalytic hydrogenation of esters and carboxylic acids represents a fundamental and important class of organic transformations, which is widely applied in energy, environmental, agricultural, and pharmaceutical industries. Due to the low reactivity of the carbonyl group in carboxylic acids and esters, this type of reaction is, however, rather challenging. Hence, specifically active catalysts are required to achieve a satisfactory yield. Nevertheless, in recent years, remarkable progress has been made on the development of catalysts for this type of reaction, especially heterogeneous catalysts, which are generally dominating in industry. Here in this review, we discuss the recent breakthroughs as well as milestone achievements for the hydrogenation of industrially important carboxylic acids and esters utilizing heterogeneous catalysts. In addition, related catalytic hydrogenations that are considered of importance for the development of cleaner energy technologies and a circular chemical industry will be discussed in detail. Special attention is paid to the insights into the structure-activity relationship, which will help the readers to develop rational design strategies for the synthesis of more efficient heterogeneous catalysts.
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Affiliation(s)
- Ruiyang Qu
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, Rostock 18059, Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, Rostock 18059, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, Rostock 18059, Germany
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3
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Kong X, Xiao J, Chen A, Chen L, Li C, Feng L, Ren X, Fan X, Sun W, Sun Z. Enhanced Catalytic Denitrification Performance of Ruthenium-based Catalysts by Hydrogen Spillover from a Palladium Promoter. J Colloid Interface Sci 2022; 608:2973-2984. [PMID: 34838314 DOI: 10.1016/j.jcis.2021.11.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/29/2021] [Accepted: 11/05/2021] [Indexed: 11/27/2022]
Abstract
Catalytic denitrification, a promising technology for nitrate removal, is increasingly limited by the rising price of Pd. Replacing Pd with less-expensive Ru would significantly reduce the cost; however, Ru-based catalysts have been reported to perform inconsistently in denitrification applications, making their replacement prospects unclear. Herein, the surface oxidation of Ru catalysts was confirmed to be a key factor that inhibits activity. A series of Ru-Pd catalysts containing small amounts of Pd (0.5 wt%) was developed to eliminate the Ru surface-oxide layer through the spillover of hydrogen atoms activated on the Pd promoter. Ru-Pd/Fe3O4 exhibited superior catalytic activity to Ru-Pd/C and Ru-Pd/Al2O3 because the reducible carrier (Fe3O4) has a lower resistance to hydrogen spillover and diffusion, as determined experimentally and supported by density functional theory calculations. This study developed a method that eliminates ruthenium surface oxides in situ and restores its denitrification activity, further reducing the barrier to Ru replacing Pd in catalytic aqueous denitrification.
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Affiliation(s)
- Xiao Kong
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Jun Xiao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China
| | - Aitao Chen
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Long Chen
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Chao Li
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Liu Feng
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Xiaoli Ren
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China
| | - Xinzhuang Fan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, China
| | - Wuzhu Sun
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandon Province 255000, China.
| | - Zhongti Sun
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China.
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4
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Selective Hydrogenation of Glycolic Acid to Renewable Ethylene Glycol over Supported Ruthenium Catalysts. ChemCatChem 2022. [DOI: 10.1002/cctc.202101275] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Boukha Z, de Rivas B, González-Velasco JR, Gutiérrez-Ortiz JI, López-Fonseca R. Comparative Study of the Efficiency of Different Noble Metals Supported on Hydroxyapatite in the Catalytic Lean Methane Oxidation under Realistic Conditions. MATERIALS 2021; 14:ma14133612. [PMID: 34203405 PMCID: PMC8269712 DOI: 10.3390/ma14133612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022]
Abstract
The combustion of lean methane was studied over palladium, rhodium, platinum, and ruthenium catalysts supported on hydroxyapatite (HAP). The samples were prepared by wetness impregnation and thoroughly characterized by BET, XRD, UV-Vis-NIR spectroscopy, H2-TPR, OSC, CO chemisorption, and TEM techniques. It was found that the Pd/HAP and Rh/HAP catalysts exhibited a higher activity compared with Pt/HAP and Ru/HAP samples. Thus, the degree of oxidation of the supported metal under the reaction mixture notably influenced its catalytic performance. Although Pd and Rh catalysts could be easily re-oxidized, the re-oxidation of Pt and Ru samples appeared to be a slow process, resulting in small amounts of metal oxide active sites. Feeding water and CO2 was found to have a negative effect, which was more pronounced in the presence of water, on the activity of Pd and Rh catalysts. However, the inhibiting effect of CO2 and H2O decreased by increasing the reaction temperature.
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McCarver GA, Rajeshkumar T, Vogiatzis KD. Computational catalysis for metal-organic frameworks: An overview. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213777] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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7
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Tolek W, Nanthasanti N, Pongthawornsakun B, Praserthdam P, Panpranot J. Effects of TiO 2 structure and Co addition as a second metal on Ru-based catalysts supported on TiO 2 for selective hydrogenation of furfural to FA. Sci Rep 2021; 11:9786. [PMID: 33963216 PMCID: PMC8105368 DOI: 10.1038/s41598-021-89082-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 04/12/2021] [Indexed: 11/17/2022] Open
Abstract
The TiO2 supported Ru-based catalysts were prepared with 1.5 wt% Ru and 0-0.8 wt% Co on various TiO2 (anatase, rutile, P-25, and sol-gel TiO2) and studied in the liquid-phase selective hydrogenation of furfural to furfuryl alcohol (FA) under mild conditions (50 °C and 2 MPa H2). The presence of high anatase crystallographic composition on TiO2 support was favorable for enhancing hydrogenation activity, while the strong interaction between Ru and TiO2 (Ru-TiOx sites) was required for promoting the selectivity to FA. The catalytic performances of bimetallic Ru-Co catalysts were improved with increasing Co loading due to the synergistic effect of Ru-Co alloying system together with the strong interaction between Ru and Co as revealed by XPS, H2-TPR, and TEM-EDX results. The enhancement of reducibility of Co oxides in the bimetallic Ru-Co catalysts led to higher hydrogenation activity with the Ru-0.6Co/TiO2 catalyst exhibited the best performances in FA selective hydrogenation of furfural to FA under the reaction conditions used.
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Affiliation(s)
- Weerachon Tolek
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Natdanai Nanthasanti
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Boontida Pongthawornsakun
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Joongjai Panpranot
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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8
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Wang X, Zhang X, Pandharkar R, Lyu J, Ray D, Yang Y, Kato S, Liu J, Wasson MC, Islamoglu T, Li Z, Hupp JT, Cramer CJ, Gagliardi L, Farha OK. Insights into the Structure–Activity Relationships in Metal–Organic Framework-Supported Nickel Catalysts for Ethylene Hydrogenation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01844] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xingjie Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xuan Zhang
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Riddhish Pandharkar
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jiafei Lyu
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Debmalya Ray
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Ying Yang
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Satoshi Kato
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Jian Liu
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Megan C. Wasson
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Timur Islamoglu
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhong Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Joseph T. Hupp
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Christopher J. Cramer
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Omar K. Farha
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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9
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Gerber IC, Serp P. A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts. Chem Rev 2019; 120:1250-1349. [DOI: 10.1021/acs.chemrev.9b00209] [Citation(s) in RCA: 274] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Iann C. Gerber
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 avenue de Rangueil, F-31077 Toulouse, France
| | - Philippe Serp
- LCC-CNRS, Université de Toulouse, UPR 8241 CNRS, INPT, 31400 Toulouse, France
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10
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Efimov MN, Mironova EY, Vasilev AA, Muratov DG, Averin AA, Zhilyaeva NA, Dzidziguri EL, Yaroslavtsev AB, Karpacheva GP. Ethanol steam reforming over Co Ru nanoparticles supported on highly porous polymer-based carbon material. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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11
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Jin X, Fang T, Wang J, Liu M, Pan S, Subramaniam B, Shen J, Yang C, Chaudhari RV. Nanostructured Metal Catalysts for Selective Hydrogenation and Oxidation of Cellulosic Biomass to Chemicals. CHEM REC 2018; 19:1952-1994. [PMID: 30474917 DOI: 10.1002/tcr.201800144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/24/2018] [Indexed: 11/12/2022]
Abstract
Conversion of biomass to chemicals provides essential products to human society from renewable resources. In this context, achieving atom-economical and energy-efficient conversion with high selectivity towards target products remains a key challenge. Recent developments in nanostructured catalysts address this challenge reporting remarkable performances in shape and morphology dependent catalysis by metals on nano scale in energy and environmental applications. In this review, most recent advances in synthesis of heterogeneous nanomaterials, surface characterization and catalytic performances for hydrogenation and oxidation for biorenewables with plausible mechanism have been discussed. The perspectives obtained from this review paper will provide insights into rational design of active, selective and stable catalytic materials for sustainable production of value-added chemicals from biomass resources.
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Affiliation(s)
- Xin Jin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Tianqi Fang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Jinyao Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Mengyuan Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Siyuan Pan
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Bala Subramaniam
- Center for Environmentally Beneficial Catalysis, Department of Chemical and Petroleum Engineering, University of Kansas, 1501 Wakarusa Drive, Lawrence, Kansas, 66047, USA
| | - Jian Shen
- College of Environment and Resources, Xiangtan University, Xiangtan, China
| | - Chaohe Yang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, 266580, China
| | - Raghunath V Chaudhari
- Center for Environmentally Beneficial Catalysis, Department of Chemical and Petroleum Engineering, University of Kansas, 1501 Wakarusa Drive, Lawrence, Kansas, 66047, USA
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12
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Serwicka EM, Zimowska M, Duraczyńska D, Napruszewska BD, Nattich-Rak M, Mordarski G, Lityńska-Dobrzyńska L, Palkova H. PDDA-Montmorillonite Composites Loaded with Ru Nanoparticles: Synthesis, Characterization, and Catalytic Properties in Hydrogenation of 2-Butanone. Polymers (Basel) 2018; 10:E865. [PMID: 30960790 PMCID: PMC6403927 DOI: 10.3390/polym10080865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 07/27/2018] [Accepted: 08/01/2018] [Indexed: 11/16/2022] Open
Abstract
The effect of synthesis parameters on the physicochemical properties of clay/ polydiallyldimethylammonium (PDDA)/Ru composites and their applicability in hydrogenation of 2-butanone under very mild conditions (room temperature, atmospheric pressure, and aqueous solution) was studied. Three synthetic procedures were employed, differing in the order of addition of components and the stage at which metallic Ru species were generated. The materials were characterized with XRD (X-ray diffraction), XRF (X-ray fluorescence), EDS (energy-dispersive spectroscopy), AFM (atomic force microscopy), TEM/HRTEM (transmission electron microscopy/high resolution transmission electron microscopy), and TG/DSC (thermal gravimetry/differential scanning microscopy techniques. The study revealed that the method of composite preparation affects its structural and thermal properties, and controls the distribution and size of Ru particles. All catalysts are active in hydrogenation of 2-butanone. For best catalytic performance (100% conversion within 30 min) both the size of Ru particles and the load of polymer had to be optimized. Superior catalytic properties were obtained over the composite with intermediate crystal size and intermediate PDDA load, prepared by generation of metallic Ru species in the polymer solution prior to intercalation. This method offers an easy way of controlling the crystal size by modification of Ru/PDDA ratio.
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Affiliation(s)
- Ewa M Serwicka
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Małgorzata Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Dorota Duraczyńska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Bogna D Napruszewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Małgorzata Nattich-Rak
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Grzegorz Mordarski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
| | - Lidia Lityńska-Dobrzyńska
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Krakow, Poland.
| | - Helena Palkova
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 36 Bratislava, Slovakia.
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13
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Demir E, Akbayrak S, Önal AM, Özkar S. Nanoceria-Supported Ruthenium(0) Nanoparticles: Highly Active and Stable Catalysts for Hydrogen Evolution from Water. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6299-6308. [PMID: 29420007 DOI: 10.1021/acsami.7b17469] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Ruthenium(0) nanoparticles supported on nanoceria (Ru0/CeO2) were prepared by reduction of Ru3+ ions on the surface of ceria using aqueous solution of NaBH4. The Ru0/CeO2 samples were characterized by advanced analytical tools and employed as electrocatalysts on the glassy carbon electrode (GCE) in hydrogen evolution from water. The GCE, modified by Ru0/CeO2 (1.86 wt % Ru), provides an incredible electrocatalytic activity with a high exchange current density of 0.67 mA·cm-2, low overpotential of 47 mV at j = 10 mA·cm-2, and small Tafel slope of 41 mV·dec-1. Moreover, this modified GCE provides an unprecedented long-term stability without changing the onset potential (33 mV) even after 10 000 scans in acidic water splitting at room temperature. The hydrogen gas, evolved during the water splitting using the Ru0/CeO2 (1.86 wt % Ru) electrocatalyst, was also collected. The amount of the evolved H2 gas matches well with the calculated value, which indicates the achievement of nearly 100% Faradaic efficiency.
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Affiliation(s)
- Elif Demir
- Department of Chemistry, Middle East Technical University , 06800 Ankara, Turkey
- Department of Chemical Engineering and Applied Chemistry, Atılım University , 06830 Ankara, Turkey
| | - Serdar Akbayrak
- Department of Chemistry, Middle East Technical University , 06800 Ankara, Turkey
- Department of Chemistry, Faculty of Arts and Science, Sinop University , 57000 Sinop, Turkey
| | - Ahmet M Önal
- Department of Chemistry, Middle East Technical University , 06800 Ankara, Turkey
| | - Saim Özkar
- Department of Chemistry, Middle East Technical University , 06800 Ankara, Turkey
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14
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Liew KH, Rocha M, Pereira C, Pires AL, Pereira AM, Yarmo MA, Juan JC, Yusop RM, Peixoto AF, Freire C. Highly Active Ruthenium Supported on Magnetically Recyclable Chitosan-Based Nanocatalyst for Nitroarenes Reduction. ChemCatChem 2017. [DOI: 10.1002/cctc.201700649] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Kin Hong Liew
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
- School of Chemical Sciences and Food Technology; Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Darul Ehsan Malaysia
| | - Mariana Rocha
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
| | - Clara Pereira
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
| | - Ana L. Pires
- IFIMUP-IN, Department of Physics and Astronomy, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
| | - André M. Pereira
- IFIMUP-IN, Department of Physics and Astronomy, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
| | - Mohd Ambar Yarmo
- School of Chemical Sciences and Food Technology; Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Darul Ehsan Malaysia
| | - Joon Ching Juan
- Nanotechnology & Catalysis Research Centre, NANOCAT; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Rahimi M. Yusop
- School of Chemical Sciences and Food Technology; Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Darul Ehsan Malaysia
| | - Andreia F. Peixoto
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
| | - Cristina Freire
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; 4169-007 Porto Portugal
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