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Lyu M, Zheng J, Coulthard C, Ren J, Zhao Y, Tsang SCE, Chen C, O'Hare D. Core-shell silica@Cu xZnAl LDH catalysts for efficient CO 2 hydrogenation to methanol. Chem Sci 2023; 14:9814-9819. [PMID: 37736646 PMCID: PMC10510760 DOI: 10.1039/d3sc02205f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/02/2023] [Indexed: 09/23/2023] Open
Abstract
The efficient production of methanol by reduction of CO2 using green hydrogen is a promising strategy from both a green chemistry and a carbon net zero perspective. Herein, we report the synthesis of well-dispersed core-shell catalyst precursors using silica@CuxZnAl-LDHs that can convert CO2 to methanol. The catalyst precursors can be formed using either a commercially available silica (ES757) or a mesoporous silica (e.g. MCM-48). These hybrid materials show significantly enhanced catalytic performance compared to the equivalent unsupported CuxZnAl LDH precursor. Space-time yields of up to 0.7 gMeOH gcat-1 h-1 under mild operating conditions were observed.
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Affiliation(s)
- Meng Lyu
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK +44(0)1865 272686
| | - Jianwei Zheng
- Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Claire Coulthard
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK +44(0)1865 272686
| | - Jing Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology 100029 Beijing P. R. China
| | - Yufei Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology 100029 Beijing P. R. China
| | - Shik Chi Edman Tsang
- Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Chunping Chen
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK +44(0)1865 272686
| | - Dermot O'Hare
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK +44(0)1865 272686
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2
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Feng J, Li K, Ning P, Wang C, Sun X, Wang F, Gao P. Preparation of MgX/Al 2O 3-Y sorbent for highly efficient simultaneous removal of hydrogen fluoride and hydrogen chloride under low-temperature environment. ENVIRONMENTAL TECHNOLOGY 2023; 44:2230-2243. [PMID: 34986750 DOI: 10.1080/09593330.2022.2026484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/18/2021] [Indexed: 06/04/2023]
Abstract
In this study, a series of Mg-modified γ-Al2O3 sorbents have been introduced to simultaneously remove HCl and HF in a low-temperature environment. These sorbents were prepared by impregnation, and the effects of Mg loading amount and calcination temperature on the performance of the sorbent were investigated. The optimal sorbent (modified by 15 wt% Mg and calcined at 400℃, Mg15/Al2O3-400) exhibited the highest adsorption capacity of all the sorbents tested, 37.89 mg(HF)•gsorbent-1 and 34.54 mg(HCl)•gsorbent-1, respectively. Taking into account an excellent HF(HCl) capacity of the Mg15/Al2O3-400, these sorbents are very promising HF(HCl)sorbents usable in a low-temperature environment. The role of MgO loaded on γ-Al2O3 was investigated by Brunauer-Emmet-Teller (BET) method, X-ray diffractometer (XRD), scanning electron microscopy (SEM-EDS), X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of CO2 (CO2-TPD), and thermogravimetric analysis (TG-DTG). The results revealed that MgO acted as a 'leading role' to promote the adsorption activity of the sorbents. BET analysis demonstrated that the Mg modification process did not seriously change the pore type of the γ-Al2O3. CO2-TPD results revealed that the calcination temperature will significantly affect the number and strength of the basic sites on the surface of the sorbent. In addition, XRD and XPS analysis indicated that the consumption of MgO and the accumulation of reaction products on the surface and pores are the main reasons for the deactivation of the sorbent.
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Affiliation(s)
- Jiayu Feng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Kai Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
- National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Chi Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Xin Sun
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Fei Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Peng Gao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
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3
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Sanders LM, Nguyen Sorenson AHT, Sultan JA, Hall SB, Anderson HC, Asplund MC, Stowers KJ. Inherent Redox Activity of Titania Support Enhances Catalytic Activity of Highly Dispersed Cu Catalyst. ChemistrySelect 2022. [DOI: 10.1002/slct.202202489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lindsey M. Sanders
- Department of Chemistry and Biochemistry Brigham Young University Provo Utah 84604 USA
| | | | - Jack A. Sultan
- Department of Chemistry and Biochemistry Brigham Young University Provo Utah 84604 USA
| | - Seth B. Hall
- Department of Chemistry and Biochemistry Brigham Young University Provo Utah 84604 USA
| | - Hans C. Anderson
- Principal Research Scientist Northrop Grumman R&D Motor Health Management 9160 N. Hwy 83 Promontory Utah 84307 USA
| | - Matthew C. Asplund
- Department of Chemistry and Biochemistry Brigham Young University Provo Utah 84604 USA
| | - Kara J. Stowers
- Department of Chemistry and Biochemistry Brigham Young University Provo Utah 84604 USA
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4
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Chuklina S, Zhukova A, Fionov Y, Kadyko M, Fionov A, Zhukov D, Il'icheva A, Podzorova L, Mikhalenko I. Selectivity of Ethanol Conversion on Al/Zr/Ce Mixed Oxides: Dehydration and Dehydrogenation Pathways Based on Surface Acidity Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202203031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sofia Chuklina
- Department of Physical and Colloid Chemistry Peoples Friendship University of Russia (RUDN University) 6, Miklukho-Maklaya str. Moscow 117198 Russia
| | - Anna Zhukova
- Department of Physical and Colloid Chemistry Peoples Friendship University of Russia (RUDN University) 6, Miklukho-Maklaya str. Moscow 117198 Russia
| | - Yuri Fionov
- Department of Physical and Colloid Chemistry Peoples Friendship University of Russia (RUDN University) 6, Miklukho-Maklaya str. Moscow 117198 Russia
| | - Mikhail Kadyko
- Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Leninskii av. 31–4 119071 Moscow Russia
| | - Alexander Fionov
- Department of Chemistry Lomonosov Moscow State University Moscow 119991 Russia
| | - Dmitry Zhukov
- Mendeleev University of Chemical Technology 9, Miusskaya squ. Moscow 125047 Russia
| | - Alla Il'icheva
- Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences Moscow 119991 Russia
| | - Ludmila Podzorova
- Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences Moscow 119991 Russia
| | - Irina Mikhalenko
- Department of Physical and Colloid Chemistry Peoples Friendship University of Russia (RUDN University) 6, Miklukho-Maklaya str. Moscow 117198 Russia
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5
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Zhang Z, Guo R, Yang X, Fang YX. Potassium Carbonate (K 2CO 3)-Assisted Copper-Catalyzed Liquid-Phase Hydrogenation of Furfural: Striking Promotion Synergy Enables a Superior High Furfuryl Alcohol Yield at Mild Reaction Conditions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhaoxia Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Renxin Guo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xu Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yan-Xiong Fang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China
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6
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Thermal transformation of copper incorporated hydrotalcite-derived oxides and their catalytic activity for ethanol dehydrogenation. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Ciotonea C, Chirieac A, Dragoi B, Catrinescu C, Royer S, Ungureanu A. Cu–Ga 2 O 3 nanoparticles supported on ordered mesoporous silica for the catalytic hydrogenation of cinnamaldehyde. CR CHIM 2022. [DOI: 10.5802/crchim.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Pampararo G, Garbarino G, Comite A, Busca G, Riani P. Acetaldehyde production by ethanol dehydrogenation over Cu-ZnAl2O4: effect of catalyst synthetic strategies on performances. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Zakharova A, Iqbal MW, Madadian E, Simakov DSA. Reverse Microemulsion-Synthesized High-Surface-Area Cu/γ-Al 2O 3 Catalyst for CO 2 Conversion via Reverse Water Gas Shift. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22082-22094. [PMID: 35522907 DOI: 10.1021/acsami.2c01959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Reverse microemulsion method was implemented to synthesize a CuO/γ-Al2O3 catalyst (18 wt % Cu) with a specific surface area (SSA) of 328 m2/g (after calcination at 400 °C). Catalytic performance was evaluated in the range of temperatures and space velocities (300-600 °C and 10,000-200,000 mL/(g h)). The catalyst was 100% selective to CO generation while attaining a nearly equilibrium CO2 conversion at 500 °C (ca. 50% at 10,000 mL/(g h) and H2/CO2 = 4). Despite the initial reduction of surface area under the reaction conditions, the reduced Cu/γ-Al2O3 catalyst demonstrated a stable performance for 80 h on stream, attaining a nearly equilibrium CO2 conversion at 600 °C (ca. 60% at 60,000 mL/(g h) and H2/CO2 = 4). The selectivity to CO generation remained complete during the stability test, and no significant carbon deposition was detected.
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Affiliation(s)
- Anastasiia Zakharova
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
| | - Muhammad Waqas Iqbal
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
- Chemical, Polymer and Composite Material Engineering Department, KSK Campus, University of Engineering and Technology Lahore, Lahore, Punjab 39161, Pakistan
| | - Edris Madadian
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
| | - David S A Simakov
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
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10
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Al-Auda Z, Li X, Hohn KL. Dehydrogenation of 2,3-Butanediol to Acetoin Using Copper Catalysts. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zahraa Al-Auda
- Department of Chemical Engineering, The University of Technology, PO Box 35010 Baghdad 10066, Iraq
| | - Xu Li
- Department of Chemical Engineering, Kansas State University, 1005 Durland Hall, Manhattan, Kansas 66506, United States
| | - Keith L. Hohn
- Department of Chemical, Paper, Biomedical Engineering, Miami University, 64 Engineering Building 650 E. High St, Oxford, Ohio 45056, United States
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11
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Synthesis and Characterization of Supported Pd Catalysts for Potential Application in Glycerol Electro-Oxidation. Catalysts 2022. [DOI: 10.3390/catal12020192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ceria-supported Pd catalysts encompassing oxides of Cu, Co, and Fe were synthesized and characterized using XRD, TEM, SEM-EDX, TPR, BET, and Raman. After the incorporation of the metal oxides, the surface area and pore volume of the ceria support decreased. XRD showed the presence of the metal oxide phases as well as the support, CeO2. TPR showed that the bimetallic catalyst had improved reducibility compared to the monometallic Pd/CeO2. TEM images showed irregular-shaped particles with an average size distribution of 2–10 nm. SEM-EDX showed that the metal oxides were evenly distributed over the surface of the support. The electro-oxidation of glycerol in an alkaline environment was evaluated using cyclic voltammetry, and the products formed were identified and quantified using GC-MS. Glyceric acid was the dominant product over Pd-CuO/CeO2, while glyceraldehyde and dihydroxyacetone were dominant over Pd-Co3O4/CeO2 and Pd-Fe2O3/CeO2, respectively.
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12
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Dhengale SD, Rode CV, Kolekar GB, Anbhule PV. Synthesis of indeno-[1,2- b]-quinoline-9,11(6 H,10 H)-dione and 7,7-dimethyl-10-aryl-7,8-dihydro-5 H-indeno[1,2- b]quinoline-9,11(6 H,10 H)-dione derivatives in presence of heterogeneous Cu/zeolite-Y as a catalyst. RSC Adv 2022; 12:2083-2093. [PMID: 35425268 PMCID: PMC8979121 DOI: 10.1039/d1ra06637d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/30/2021] [Indexed: 12/19/2022] Open
Abstract
A simple method for the synthesis of indeno-[1,2-b]-quinoline-9,11-(6H,10H)-dione derivatives and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-diones through the reaction of aromatic aldehydes, indan-1,3-dione, dimedone, and p-toluidine/ammonium acetate in the presence of heterogeneous CuO supported on a zeolite-Y catalyst has been investigated in ethanol under reflux conditions. By this method, the reaction time has been reduced, giving an excellent yield of the product. The catalyst was prepared by a hydrothermal method followed by a wet impregnation method. The catalyst had shown Brønsted acid sites and Lewis acid sites. The used catalyst could be actively recycled with a marginal decrease in yield up to five recycles. The prepared catalyst was characterized by FT-IR, pyridine FT-IR, XRD, SEM, EDS, XPS, TEM, and BET surface area analysis. The synthesized compounds were characterized by FT-IR, 1H NMR, 13C NMR and GC-MS spectroscopy.
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Affiliation(s)
- Shankar D Dhengale
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shivaji University Kolhapur-416004 India
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road Pune-411008 India
| | - Chandrashekhar V Rode
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road Pune-411008 India
| | - Govind B Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University Kolhapur-416004 MS India
| | - Prashant V Anbhule
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shivaji University Kolhapur-416004 India
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13
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Wang T, Jiang Z, Tang Q, Wang B, Wang S, Yu M, Chang R, Yue Y, Zhao J, Li X. Interactions between atomically dispersed copper and phosphorous species are key for the hydrochlorination of acetylene. Commun Chem 2022; 5:2. [PMID: 36697741 PMCID: PMC9814576 DOI: 10.1038/s42004-021-00619-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 12/14/2021] [Indexed: 01/28/2023] Open
Abstract
Vinyl chloride, the monomer of polyvinyl chloride (PVC), is industrially synthesized via acetylene hydrochlorination. Thereby, easy to sublimate but toxic mercury chloride catalysts are widely used. It is imperative to find environmentally friendly non-mercury catalysts to promote the green production of PVC. Low-cost copper-based catalysts are promising candidates. In this study, phosphorus-doped Cu-based catalysts are prepared. It is shown that the type of phosphorus configuration and the distribution on the surface of the carrier can be adjusted by changing the calcination temperature. Among the different phosphorus species, the formed P-C bond plays a key role. The coordination structure formed by the interaction between P-C bonds and atomically dispersed Cu2+ species results in effective and stable active sites. Insights on how P-C bonds activate the substrate may provide ideas for the design and optimization of phosphorus-doped catalysts for acetylene hydrochlorination.
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Affiliation(s)
- Ting Wang
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Zhao Jiang
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Qi Tang
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Bolin Wang
- grid.412245.40000 0004 1760 0539School of Chemical Engineering, Northeast Electric Power University, Jilin, 132012 China
| | - Saisai Wang
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Mingde Yu
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Renqin Chang
- grid.469325.f0000 0004 1761 325XResearch Center of Analysis Measurement, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Yuxue Yue
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Jia Zhao
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Xiaonian Li
- grid.469325.f0000 0004 1761 325XIndustrial Catalysis Institute of Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
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14
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Navarro-Jaén S, Virginie M, Morin JC, Thuriot JR, Wojcieszak R, Khodakov A. Hybrid monometallic and bimetallic copper-palladium zeolite catalysts for direct synthesis of dimethyl ether from CO2. NEW J CHEM 2022. [DOI: 10.1039/d1nj05734k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nowadays, carbon dioxide is the major reason of the global climate changes. The direct CO2 hydrogenation to dimethyl ether produces an important platform molecule for synthesis of fuels and chemicals...
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15
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Zhukova A, Chuklina S, Maslenkova S. Study of Cu modified Zr and Al mixed oxides in ethanol conversion: The structure-catalytic activity relationship. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Jin R, Easa J, O'Brien CP. Highly Active CuO x/SiO 2 Dot Core/Rod Shell Catalysts with Enhanced Stability for the Reverse Water Gas Shift Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38213-38220. [PMID: 34346672 DOI: 10.1021/acsami.1c06979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cu-based catalysts are highly active and selective for several CO2 conversion reactions; however, traditional monometallic Cu-based catalysts suffer poor thermal stability due to the aggregation of copper particles at high temperatures. In this work, we demonstrate a crystal engineering strategy to controllably prepare copper/silica (CuOx/SiO2) catalysts for the reverse water gas shift reaction (RWGS) at high temperatures. We show that CuOx/SiO2 catalysts derived from the in situ reduction of pure copper silicate nanotubes in a CO2 and H2 atmosphere exhibit superior catalytic activity with enhanced stability compared to traditional monometallic Cu-based catalysts for the RWGS at high temperatures. Detailed structural characterization reveals that there is a strong interaction between Cu and SiO2 in CuOx/SiO2 catalysts, which produces more Cu+ sites and smaller CuOx nanoparticles. Moreover, CuOx/SiO2 catalysts possess a unique dot core/rod shell structure, which could prevent the aggregation of Cu particles. This structural confinement effect, enhanced CO2 adsorption by Cu+, and small CuOx nanoparticles presumably caused the catalyst's extraordinary activity with enhanced stability at high temperatures.
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Affiliation(s)
- Renxi Jin
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Justin Easa
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Casey P O'Brien
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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17
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Feng J, Wang F, Wang C, Li K, Sun X, Ning P. Cu/HZSM-5 Sorbent Treated by NH 3 Plasma for Low-Temperature Simultaneous Adsorption-Oxidation of H 2S and PH 3. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24670-24681. [PMID: 34018716 DOI: 10.1021/acsami.1c02584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, an NH3 plasma-treated Cu/HZSM-5 sorbent was introduced to simultaneously remove H2S and PH3 in low-temperature and low-oxygen environments. The effects of the Cu loading amounts, modification methods, and plasma-treatment conditions on the adsorption-oxidation performance of the sorbents were investigated. From the performance test results, the sorbent treated by NH3 plasma with the specific energy input (SEI, electrical input energy to the unit volume of gas) value of 1 J·mL-1 (Cu/HZSM-5-[S1]) was identified as having the highest breakthrough capacities of 108.9 mg S·g-1 and 150.9 mg P·g-1 among all of the materials tested. After three times of regeneration, the sorbent can still maintain the ideal performance. The results of Fourier transform infrared (FT-IR) spectroscopy and CO2 temperature-programmed desorption (CO2-TPD) indicated that the NH3 plasma treatment can introduce amino groups (functional groups) onto the sorbent surface, which greatly increases the number and strength of the basic sites on the sorbent surface. Results of N2 adsorption/desorption isotherms and scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) showed that the morphology of the sorbent changed after the plasma treatment, which exposed more active sites (copper species). In situ IR spectra showed that the amino groups are continuously consumed during the reaction process, indicating that these amino groups can help sorbents to capture gas molecules. Moreover, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses indicated that CuO is the main active species and the consumption of CuO and accumulation of the reaction products on the surface and inner pores of the sorbent are the primary reasons for the deactivation of the sorbent.
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Affiliation(s)
- Jiayu Feng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Fei Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Chi Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Kai Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xin Sun
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China
- National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming University of Science and Technology, Kunming 650500, P. R. China
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18
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Prabhakar Reddy K, Choi H, Kim D, Ryoo R, Park JY. Cu oxide deposited on shape-controlled ceria nanocrystals for CO oxidation: influence of interface-driven oxidation states on catalytic activity. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01269j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The polar CeO2 (100) surface facets contribute considerably to the formation of surface hydroxyl groups, which are necessary for selective, stable Cu1+ state loading and enhancement of CO oxidation activity.
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Affiliation(s)
- Kasala Prabhakar Reddy
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hanseul Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Daeho Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ryong Ryoo
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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19
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González-Castaño M, Dorneanu B, Arellano-García H. The reverse water gas shift reaction: a process systems engineering perspective. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00478b] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RWGS reaction thermodynamics, mechanisms and kinetics. Process design and process intensification – from lab scale to industrial applications and CO2 value chains. Pathways for further improvement of catalytic systems, reactor and process design.
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Affiliation(s)
- Miriam González-Castaño
- Department of Process and Plant Technology
- Brandenburg University of Technology (BTU) Cottbus-Senftenberg
- Cottbus
- Germany
| | - Bogdan Dorneanu
- Department of Process and Plant Technology
- Brandenburg University of Technology (BTU) Cottbus-Senftenberg
- Cottbus
- Germany
| | - Harvey Arellano-García
- Department of Process and Plant Technology
- Brandenburg University of Technology (BTU) Cottbus-Senftenberg
- Cottbus
- Germany
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20
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Guo J, Duchesne PN, Wang L, Song R, Xia M, Ulmer U, Sun W, Dong Y, Loh JYY, Kherani NP, Du J, Zhu B, Huang W, Zhang S, Ozin GA. High-Performance, Scalable, and Low-Cost Copper Hydroxyapatite for Photothermal CO2 Reduction. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03806] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jiuli Guo
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, P. R. China
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Paul N. Duchesne
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Lu Wang
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Guangdong 518172, P. R. China
| | - Rui Song
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Meikun Xia
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Ulrich Ulmer
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Wei Sun
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Yuchan Dong
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Joel Y. Y. Loh
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Electrical and Computer Engineering, Department of Materials Science and Engineering, University of Toronto, Toronto M5S 3E4, Canada
| | - Nazir P. Kherani
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Electrical and Computer Engineering, Department of Materials Science and Engineering, University of Toronto, Toronto M5S 3E4, Canada
| | - Jimin Du
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, P. R. China
| | - Baolin Zhu
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Weiping Huang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Shoumin Zhang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Geoffrey A. Ozin
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
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21
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Zahrani AA, Ayati B. Improving Fe-based heterogeneous Electro-Fenton nano catalyst using transition metals in a novel orbiting electrodes reactor. CHEMOSPHERE 2020; 256:127049. [PMID: 32447107 DOI: 10.1016/j.chemosphere.2020.127049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/25/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
In recent decades the electro-Fenton process has widely been utilized for removing recalcitrant compounds. However, this process is accompanied by several problems such as limited working pH range, production of significant amount of iron sludge, and incapability in reusing used iron ions. Hence, the heterogeneous electro-Fenton process is a convenient way to address these problems. One of the shortcomings of this method, in comparison with the homogeneous electro-Fenton process, is its lower reaction rate. In the first phase of this study, a heterogeneous Fe-based nanocatalyst was prepared. After optimizing the affecting parameters, three transition metals (M: Cu, Co and, Cr) were used in the second phase of the study to improve the performance of this nanocatalyst in removing the indicator pollutant (acid blue 25). The characteristics of nanocatalysts were determined via FESEM, XRD, FTIR, and N2 adsorption-desorption techniques. The results indicated an enhancement in dye removal efficiency (nearly 8 percent), and the reaction rate (nearly 64 percent) due to the nanocatalysts improved by the presence of transition metals. The reactions with Fe-based nanocatalyst containing copper ions in pH = 3, initial dye concentration = 200 mg L-1, I = 3.57 mA cm-2, nanocatalyst concentration = 100 mg L-1, electrodes angular velocity = 50 rpm, Na2SO4 concentration = 0.01 M were capable of removing 97% of dye, 79% of COD and, 65% of TOC. The nanocatalysts were used in 5 cycles, and the dye removal efficiency did not drop considerably, a feature that adds to their importance from an economic point of view. The concentration of leached transition metals into the solution was measured using the ICP-AES technique, which was less than the allowable Iranian standard concentration of discharge into the surface water bodies, thus no need for secondary treatment of wastewater.
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Affiliation(s)
- Amir Ahmadi Zahrani
- Civil and Environmental Engineering Faculty, Tarbiat Modares University, P.O. Box, 14115-397, Tehran, Iran
| | - Bita Ayati
- Civil and Environmental Engineering Faculty, Tarbiat Modares University, P.O. Box, 14115-397, Tehran, Iran.
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22
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Dasireddy VDBC, Bharuth-Ram K, Hanzel D, Likozar B. Heterogeneous Cu-Fe oxide catalysts for preferential CO oxidation (PROX) in H 2-rich process streams. RSC Adv 2020; 10:35792-35802. [PMID: 35517100 PMCID: PMC9056926 DOI: 10.1039/d0ra06969h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/12/2020] [Indexed: 11/21/2022] Open
Abstract
The influence of Fe loading in Cu–Fe phases and its effect on carbon monoxide (CO) oxidation in H2-rich reactant streams were investigated with the catalyst material phases characterized by Field Emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD) studies and Mössbauer Spectroscopy (MS). There was no change in the oxidation state of the Fe ions with copper or iron loading. The catalytic activity was examined in the feed consisting of H2, H2O and CO2 for the preferential CO oxidation (PROX) process. These catalysts showed an optimized performance in converting CO in WGS streams in the temperature range of 80–200 °C. In addition to the formation of the CuFe2O4 phase, the Fe and Cu were found to be incorporated into a Cu–Fe supersaturated solid solution which improved CO oxidation activity, with carbon dioxide and water produced selectively with high catalytic activity in depleted hydrogen streams. Relatively high conversion of CO was obtained with high Fe metal loading. In addition to their catalytic efficiency, the employed heterogeneous catalysts are inexpensive to produce and do not contain any critical raw materials such as platinum group metals. Fe loading in Cu–Fe phases and its effect on carbon monoxide oxidation in H2-rich reactant streams were investigated with the catalyst material phases characterized by Field Emission Scanning Electron Microscopy, X-ray diffraction studies and Mössbauer Spectroscopy.![]()
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Affiliation(s)
- Venkata D B C Dasireddy
- Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry Slovenia Hajdrihova 19 SI-1001 Ljubljana Slovenia
| | - Krish Bharuth-Ram
- Physics Department, Durban University of Technology Durban 4000 South Africa
| | - Darko Hanzel
- Jozef Stefan Institute Jamova 39 Ljubljana Slovenia
| | - Blaž Likozar
- Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry Slovenia Hajdrihova 19 SI-1001 Ljubljana Slovenia
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23
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Xin H, Yang H, Lei X, Du X, Zhou K, Li D, Hu C. Ni–Fe Catalysts Supported on γ-Al 2O 3/HZSM-5 for Transformation of Palmitic Acid into Hydrocarbon Fuel. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01937] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hui Xin
- College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Huiru Yang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Xiaomei Lei
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Xiangze Du
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Keyao Zhou
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Dan Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Changwei Hu
- College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
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24
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Cu-Mg-Fe-O-(Ce) Complex Oxides as Catalysts of Selective Catalytic Oxidation of Ammonia to Dinitrogen (NH3-SCO). Catalysts 2020. [DOI: 10.3390/catal10020153] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Multicomponent oxide systems 800-Cu-Mg-Fe-O and 800-Cu-Mg-Fe-O-Ce were tested as catalysts of selective catalytic oxidation of ammonia to dinitrogen (NH3-SCO) process. Materials were obtained by calcination of hydrotalcite-like compounds at temperature 800 °C. Some catalysts were doped with cerium by the wet impregnation method. Not only simple oxides, but also complex spinel-like phases were formed during calcination. The influence of chemical composition, especially the occurrence of spinel phases, copper loading and impregnation by cerium, were investigated. Materials were characterized by several techniques: X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), low-temperature nitrogen adsorption (BET), cyclic voltammetry (CV), temperature programmed reduction (H2-TPR), UV-vis diffuse reflectance spectroscopy and scanning electron microscopy (SEM). Examined oxides were found to be active as catalysts of selective catalytic oxidation of ammonia with high selectivity to N2 at temperatures above 300 °C. Catalysts with low copper amounts (up to 12 wt %) impregnated by Ce were slightly more active at lower temperatures (up to 350 °C) than non-impregnated samples. However, when an optimal amount of copper (12 wt %) was used, the presence of cerium did not affect catalytic properties. Copper overloading caused a rearrangement of present phases accompanied by the steep changes in reducibility, specific surface area, direct band gap, crystallinity, dispersion of CuO active phase and Cu2+ accessibility leading to the decrease in catalytic activity.
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25
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Koverga AA, Flórez E, Dorkis L, Rodriguez JA. Promoting effect of tungsten carbide on the catalytic activity of Cu for CO2 reduction. Phys Chem Chem Phys 2020; 22:13666-13679. [DOI: 10.1039/d0cp00358a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supporting Cu atoms on WC(0001) surfaces stabilizes CO2 molecules relative to Cu(111), promoting the CO2 catalytic activity on Cu/WC(0001).
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Affiliation(s)
- Andrey A. Koverga
- Universidad Nacional de Colombia sede Medellín
- Facultad de Minas
- Departamento de Materiales y Minerales
- Grupo de Investigación en Catálisis y Nanomateriales
- Medellín
| | - Elizabeth Flórez
- Universidad de Medellín
- Facultad de Ciencias Básicas
- Grupo de Investigación Mat&mpac
- Medellín
- Colombia
| | - Ludovic Dorkis
- Universidad Nacional de Colombia sede Medellín
- Facultad de Minas
- Departamento de Materiales y Minerales
- Grupo de Investigación en Catálisis y Nanomateriales
- Medellín
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26
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Janampelli S, Sethia G, Darbha S. Selective, bifunctional Cu–WO x/Al 2O 3 catalyst for hydrodeoxygenation of fatty acids. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01939a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cu–WOx/Al2O3 is highly selective for hydrodeoxygenation of oleic acid. Texture and acidity influenced the catalyst activity.
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Affiliation(s)
- Sagar Janampelli
- Catalysis and Inorganic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Govind Sethia
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt & Marine Chemicals Research Institute
- Gijubhai Bhadheka Marg
- Bhavnagar-364002
- India
| | - Srinivas Darbha
- Catalysis and Inorganic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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27
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Pascher TF, Ončák M, van der Linde C, Beyer MK. Decomposition of Copper Formate Clusters: Insight into Elementary Steps of Calcination and Carbon Dioxide Activation. ChemistryOpen 2019; 8:1453-1459. [PMID: 31871848 PMCID: PMC6916659 DOI: 10.1002/open.201900282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/13/2019] [Indexed: 11/29/2022] Open
Abstract
The decomposition of copper formate clusters is investigated in the gas phase by infrared multiple photon dissociation of Cu(II) n (HCO2)2n+1 -, n≤8. In combination with quantum chemical calculations and reactivity measurements using oxygen, elementary steps of the decomposition of copper formate are characterized, which play a key role during calcination as well as for the function of copper hydride based catalysts. The decomposition of larger clusters (n >2) takes place exclusively by the sequential loss of neutral copper formate units Cu(II)(HCO2)2 or Cu(II)2(HCO2)4, leading to clusters with n=1 or n=2. Only for these small clusters, redox reactions are observed as discussed in detail previously, including the formation of formic acid or loss of hydrogen atoms, leading to a variety of Cu(I) complexes. The stoichiometric monovalent copper formate clusters Cu(I) m (HCO2) m+1 -, (m=1,2) decompose exclusively by decarboxylation, leading towards copper hydrides in oxidation state +I. Copper oxide centers are obtained via reactions of molecular oxygen with copper hydride centers, species containing carbon dioxide radical anions as ligands or a Cu(0) center. However, stoichiometric copper(I) and copper(II) formate Cu(I)(HCO2)2 - and Cu(II)(HCO2)3 -, respectively, is unreactive towards oxygen.
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Affiliation(s)
- Tobias F. Pascher
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Milan Ončák
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Christian van der Linde
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Martin K. Beyer
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
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28
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Abstract
A one-step catalytic process was used to catalyze the hydrodeoxygenation of 5-methyl-3-heptanone (C8 ketone) to a mixture of 5-methyl-3-heptene, 5-methyl-2-heptene (C8 alkenes), and 3-methyl heptane (C8 alkane). High conversion of C8 ketone to the desired products was achieved over a single bed of a supported catalyst (bifunctional heterogeneous catalyst) consisting of one transition metal (copper (Cu) or platinum (Pt)) loaded on alumina (Al2O3) under mild operating conditions (reaction temperatures were varied between 180 °C to 260 °C, and the pressure was 1 atm). The C8 ketone was hydrogenated to 5-methyl-3-heptanol (C8 alcohol) over metal sites, followed by dehydration of the latter on acid sites on the support to obtain a mixture of C8 alkenes. These C8 alkenes can be further hydrogenated on metal sites to make a C8 alkane. The results showed that the main products over copper loaded on alumina (20 wt% Cu–Al2O3) were a mixture of C8 alkenes and C8 alkane in different amounts depending on the operating conditions (the highest selectivity for C8 alkenes (~82%) was obtained at 220 °C and a H2/C8 ketone molar ratio of 2). However, over platinum supported on alumina (1 wt% Pt–Al2O3), the major product was a C8 alkane with a selectivity up to 97% and a conversion of 99.9% at different temperatures and all H2/C8 ketone ratios.
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29
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Cao X, Lyu T, Xie W, Mirjalili A, Bradicich A, Huitema R, Jang BWL, Keum JK, More K, Liu C, Yan X. Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-019-1822-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Bahmanpour AM, Héroguel F, Kılıç M, Baranowski CJ, Artiglia L, Röthlisberger U, Luterbacher JS, Kröcher O. Cu–Al Spinel as a Highly Active and Stable Catalyst for the Reverse Water Gas Shift Reaction. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01822] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ali M. Bahmanpour
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Florent Héroguel
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Murat Kılıç
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Christophe J. Baranowski
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Luca Artiglia
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - Ursula Röthlisberger
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Jeremy S. Luterbacher
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Oliver Kröcher
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
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31
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Li C, Yang X, Gao G, Li Y, Zhang W, Chen X, Su H, Wang S, Wang Z. Copper on the inner surface of mesoporous TiO2 hollow spheres: a highly selective photocatalyst for partial oxidation of methanol to methyl formate. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01595g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To raise the methyl formate (MF) selectivity at high methanol conversion is one of the most challenging topics for photocatalytic partial oxidation of methanol to MF.
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Affiliation(s)
- Changfu Li
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Xuzhuang Yang
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Guanjun Gao
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Yuanyuan Li
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Weida Zhang
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Xuetao Chen
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Haiquan Su
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Sijia Wang
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering
- Inner Mongolia Key Lab of Rare Earth Materials Chemistry and Physics
- Inner Mongolia University
- Hohhot
- P. R. China
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32
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Metals on ZrO2: Catalysts for the Aldol Condensation of Methyl Ethyl Ketone (MEK) to C8 Ketones. Catalysts 2018. [DOI: 10.3390/catal8120622] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Methyl ethyl ketone (MEK) was converted to heavier ketones in one step, using a multi-functional catalyst having both aldol condensation (aldolization and dehydration) and hydrogenation properties. 15% Cu supported zirconia (ZrO2) was investigated in the catalytic gas phase reaction of MEK in a fixed bed reactor. The results showed that the main product was 5-methyl-3-heptanone (C8 ketone), with side products including 5-methyl-3-heptanol, 2-butanol, and other heavy products (C12 and up). The effects of various reaction parameters, like temperature and molar ratio of reactants (H2/MEK), on the overall product selectivity were studied. It was found that with increasing the temperature of the reaction, the selectivity to the C8 ketone increased, while selectivity to the 2-butanol decreased. Also, hydrogen pressure played a significant role in the selectivity of the products. It was observed that with increasing the H2/MEK molar ratio, the 2-butanol selectivity increased because of the hydrogenation reaction, while decreasing this ratio led to increasing the aldol condensation products. In addition, it was noted that both the conversion and selectivity to the main product increased using a low loading percentage of copper, 1% Cu–ZrO2. The highest selectivity of 5-methyl-3-heptanone reached ~64%, and was obtained at a temperature of around 180 °C and a molar ratio of H2/MEK equal to 2. Other metals (Ni, Pd, and Pt) that were supported on ZrO2 also produced 5-methyl-3-heptanone as the main product, with slight differences in selectivity, suggesting that a hydrogenation catalyst is important for producing the C8 ketone, but that the exact identity of the metal is less important.
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33
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Mitta H, Seelam PK, Chary KVR, Mutyala S, Boddula R, Inamuddin, Asiri AM. Efficient Vapor-Phase Selective Hydrogenolysis of Bio-Levulinic Acid to γ-Valerolactone Using Cu Supported on Hydrotalcite Catalysts. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1800028. [PMID: 30774979 PMCID: PMC6360448 DOI: 10.1002/gch2.201800028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/01/2018] [Indexed: 10/13/2023]
Abstract
In this work, Cu nanoparticles (Cu NPs, 2-20 nm) supported on Hydrotalcite catalysts exhibit enhanced selectivity for γ-valerolactone (GVL) during hydrogenolysis of levulinic acid (LA). At 260 °C, over 3 wt% Cu achieved 87.5% of LA conversion with a maximum GVL selectivity (95%). In contrast, LA hydrogenolysis over 3Cu/Hydrotalcite catalyst is highly active and stable toward the production of GVL due to balanced acido-basicity and higher Cu dispersion with ultrasmall particle sizes, which are investigated through the temperature programmed desorption (TPD) of ammonia, N2O titration, and transmission electron microscopy (TEM) analysis. Hydrotalcite in combination with inexpensive Cu catalyst is found to be an efficient and environmentally benign for LA hydrogenolysis.
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Affiliation(s)
- Harisekhar Mitta
- State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China
- Catalysis DivisionCSIR—Indian Institute of Chemical TechnologyHyderabad500007TelanganaIndia
| | - Prem Kumar Seelam
- Environmental and Chemical Engineering UnitFaculty of TechnologyUniversity of OuluP.O. Box 4300FI‐90014OuluFinland
| | - K. V. Raghava Chary
- Catalysis DivisionCSIR—Indian Institute of Chemical TechnologyHyderabad500007TelanganaIndia
| | - Suresh Mutyala
- Catalysis DivisionCSIR—Indian Institute of Chemical TechnologyHyderabad500007TelanganaIndia
| | - Rajender Boddula
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Centre for Nanoscience and TechnologyNo. 11 ZhongGuanCun, BeiYiTiao100190BeijingP. R. China
| | - Inamuddin
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia
- Centre of Excellence for Advanced Materials ResearchKing Abdulaziz UniversityJeddah21589Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia
- Centre of Excellence for Advanced Materials ResearchKing Abdulaziz UniversityJeddah21589Saudi Arabia
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Díaz-Pérez MA, Moya J, Serrano-Ruiz JC, Faria J. Interplay of Support Chemistry and Reaction Conditions on Copper Catalyzed Methanol Steam Reforming. Ind Eng Chem Res 2018; 57:15268-15279. [PMID: 30487661 PMCID: PMC6251558 DOI: 10.1021/acs.iecr.8b02488] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/15/2018] [Accepted: 10/24/2018] [Indexed: 11/29/2022]
Abstract
A series of Cu catalysts supported on SiO2, Al2O3-SiO2, TiO2 rutile, and Cu/TiO2 anatase metal oxides has been studied for methanol reforming in the vapor phase. The highest activity was obtained on Cu/SiO2 catalysts (5493 μmol H2 min-1·gcat -1) followed by Cu/TiO2 rutile, Cu/Al2O3-SiO2, and anatase. XRD and HRTEM characterization after reaction revealed that on Cu/SiO2 significant sintering occurred during reaction. In contrast, the particle size growth on Cu/TiO2 rutile and anatase was less pronounced, which could be associated with the interaction between Cu clusters and TiO2. Characterization by TGA showed that on Cu/Al2O3-SiO2 the main cause of deactivation was coke deposition.
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Affiliation(s)
| | - Javier Moya
- Abengoa Research, C/Energía Solar 1, Campus Palmas Altas, Sevilla, 41014, Spain
| | - Juan Carlos Serrano-Ruiz
- Abengoa Research, C/Energía Solar 1, Campus Palmas Altas, Sevilla, 41014, Spain.,Universidad de Loyola, Andalucía, Department of Engineering, C/Energía Solar 1, Campus Palmas Altas, Sevilla, 41014, Spain
| | - Jimmy Faria
- Abengoa Research, C/Energía Solar 1, Campus Palmas Altas, Sevilla, 41014, Spain.,Chemical Processes and Materials, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
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Wan Q, Wei F, Wang Y, Wang F, Zhou L, Lin S, Xie D, Guo H. Single atom detachment from Cu clusters, and diffusion and trapping on CeO 2(111): implications in Ostwald ripening and atomic redispersion. NANOSCALE 2018; 10:17893-17901. [PMID: 30225476 DOI: 10.1039/c8nr06232c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ostwald ripening is a key mechanism for sintering of highly dispersed metal nanoparticles in supported catalysts. However, our microscopic understanding of such processes is still primitive. In this work, the atomistic mechanism of the Ostwald ripening of Cu on CeO2(111) is examined via density functional theory calculations. In particular, the detachment of a single Cu atom from ceria supported Cun (n = 2-10, 12, 14, 16, 18, and 20) clusters and trapping on the CeO2(111) surface is investigated in the absence and presence of CO adsorption. It is shown that the adsorption of CO on Cu reduces its detachment energy, which helps in the formation of single atom species on CeO2(111). In addition, the Cu1-CO species is found to diffuse on the CeO2(111) surface with a much lower barrier than a Cu atom. These observations suggest an efficient mechanism for the Ostwald ripening of Cu clusters supported on ceria in the presence of CO. It is further predicted that the Cu1-CO species can eventually migrate to a step site on ceria, generating a stable single-atom motif with a relatively larger binding energy. Finally, the single Cu atom catalyst is shown to possess high activity for the oxygen reduction reaction.
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Affiliation(s)
- Qiang Wan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China.
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36
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Tang H, Li Y, Liu N, Fu L, Liu Y. A Highly-Efficient KF-Modified Nanorod Support Zr−Ce Oxide Catalyst and its Application. ChemCatChem 2018. [DOI: 10.1002/cctc.201801036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongjuan Tang
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
| | - Yongfei Li
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
- National &Local United Engineering Research Center for Chemical process Simulation and Intensification; Xiangtan University; Xiangtan 411105 P. R. China
| | - Ning Liu
- School of Materials and Chemistry Engineering; Hunan Institute of Technology; Hengyang 421002 P. R. China
| | - Lin Fu
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
| | - Yuejin Liu
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
- National &Local United Engineering Research Center for Chemical process Simulation and Intensification; Xiangtan University; Xiangtan 411105 P. R. China
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37
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Nagaiah P, Pramod CV, Venkata Rao M, David Raju B, Rama Rao KS. Product Selectivity as a Function of ZrO2 Phase in Cu/ZrO2 Catalysts in the Conversion of Cyclohexanol. Catal Letters 2018. [DOI: 10.1007/s10562-018-2473-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Chetty T, Dasireddy VDBC, Callanan LH, Friedrich HB. Continuous Flow Preferential Hydrogenation of an Octanal/Octene Mixture Using Cu/Al 2O 3 Catalysts. ACS OMEGA 2018; 3:7911-7924. [PMID: 31458932 PMCID: PMC6644744 DOI: 10.1021/acsomega.7b01993] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/23/2018] [Indexed: 06/10/2023]
Abstract
γ-Alumina-supported catalysts with varying copper loadings (5-25 wt %) were prepared by incipient wet impregnation and characterized by various characterization techniques. These catalysts were tested for the selective hydrogenation of octanal in a mixture containing 10 wt % octanal and 2 wt % octene diluted in octanol. The reactions were carried out in a continuous flow fixed-bed reactor in a down flow mode with varying pressures, liquid hourly space velocities, and hydrogen (H2)-to-aldehyde molar ratios. The catalyst activities were assessed over a temperature range between 100 and 180 °C using hydrogen gas as the hydrogen source. The results obtained showed that under these experimental conditions, copper preferentially hydrogenates the aldehyde and the copper content exhibited no significant influence on the catalyst activity or product selectivity. Kinetic modeling revealed that both octanal and octene hydrogenation were first-order reactions, although octene conversion was very low until octanal conversion had reached a significant level. The activation energy for octanal hydrogenation is higher than the octene hydrogenation. A maximum octanal conversion of >99% was obtained at 160 °C, and the best selectivity toward octanol of 99% was achieved at 100 °C (53% conversion). The pressure played a small role with regards to octanal conversion and selectivity toward octanol, whereas it exhibited a significant influence on the octene conversion. Increasing the hydrogen-to-aldehyde ratio was found to have a direct influence on both octanal and octene conversion.
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Affiliation(s)
- Thashini Chetty
- Catalysis
Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Venkata D. B. C. Dasireddy
- Catalysis
Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Linda H. Callanan
- Department
of Process Engineering, Stellenbosch University, Stellenbosch 7602, South Africa
| | - Holger B. Friedrich
- Catalysis
Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
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39
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Requies JM, Frias M, Cuezva M, Iriondo A, Agirre I, Viar N. Hydrogenolysis of 5-Hydroxymethylfurfural To Produce 2,5-Dimethylfuran over ZrO2 Supported Cu and RuCu Catalysts. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01234] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jesús M. Requies
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
| | - Mikel Frias
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
| | - Marcos Cuezva
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
| | - Aitziber Iriondo
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
| | - Ion Agirre
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
| | - Nerea Viar
- Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), C/Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
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40
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Quesada J, Faba L, Díaz E, Ordóñez S. Copper-Basic Sites Synergic Effect on the Ethanol Dehydrogenation and Condensation Reactions. ChemCatChem 2018. [DOI: 10.1002/cctc.201800517] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jorge Quesada
- Department of Chemical and Environmental Engineering; University of Oviedo; Av. Julián Clavería s/n, Oviedo 33006 Spain
| | - Laura Faba
- Department of Chemical and Environmental Engineering; University of Oviedo; Av. Julián Clavería s/n, Oviedo 33006 Spain
| | - Eva Díaz
- Department of Chemical and Environmental Engineering; University of Oviedo; Av. Julián Clavería s/n, Oviedo 33006 Spain
| | - Salvador Ordóñez
- Department of Chemical and Environmental Engineering; University of Oviedo; Av. Julián Clavería s/n, Oviedo 33006 Spain
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41
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Sun Y, Li C, Guo Y, Zhan W, Guo Y, Wang L, Wang Y, Lu G. Catalytic oxidation of hydrogen chloride to chlorine over Cu-K-Sm/γ-Al2O3 catalyst with excellent catalytic performance. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.04.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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Selective vapour phase dehydrogenation of biomass-derived 1,4-butanediol to gamma butyrolactone over Cu/ZrO2 catalysts: influence of La2O3 promotor. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3457-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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43
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Hinokuma S, Kiritoshi S, Kawabata Y, Araki K, Matsuki S, Sato T, Machida M. Catalytic ammonia combustion properties and operando characterization of copper oxides supported on aluminum silicates and silicon oxides. J Catal 2018. [DOI: 10.1016/j.jcat.2018.03.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Yang L, Liang Y, Yang H, Li F, Xue J, Lv Z. Preparation, characterization, and catalytic behavior of xMO/yNaZSM-5 catalyst for dichlorohydrin dechlorination reaction. ASIA-PAC J CHEM ENG 2018. [DOI: 10.1002/apj.2194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lu Yang
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
| | - Yunxia Liang
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
| | - Huimin Yang
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
| | - Fuxiang Li
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
| | - Jianwei Xue
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
| | - Zhiping Lv
- Research Institute of Special Chemicals; Taiyuan University of Technology; Taiyuan 030024 China
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45
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Hu D, Hu H, Zhou H, Li G, Chen C, Zhang J, Yang Y, Hu Y, Zhang Y, Wang L. The effect of potassium on Cu/Al2O3 catalysts for the hydrogenation of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan in a fixed-bed reactor. Catal Sci Technol 2018. [DOI: 10.1039/c8cy02017e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly efficient selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF) was achieved in a fixed-bed reactor by using inexpensive potassium-doped Cu/Al2O3 catalysts.
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Affiliation(s)
- Danxin Hu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Hualei Hu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Hao Zhou
- Technology Center
- China Tobacco Henan Industrial Co., Ltd
- Zhengzhou 450000
- China
| | - Guozheng Li
- Technology Center
- China Tobacco Henan Industrial Co., Ltd
- Zhengzhou 450000
- China
| | - Chunlin Chen
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Jian Zhang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Yong Yang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Yaoping Hu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Yajie Zhang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Lei Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
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46
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Vapor Phase Catalytic Transfer Hydrogenation (CTH) of Levulinic Acid to γ-Valerolactone Over Copper Supported Catalysts Using Formic Acid as Hydrogen Source. Catal Letters 2017. [DOI: 10.1007/s10562-017-2241-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Cross-Aldol Condensation of Acetone and n-Butanol into Aliphatic Ketones over Supported Cu Catalysts on Ceria-Zirconia. Catalysts 2017. [DOI: 10.3390/catal7090249] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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48
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Kadam RG, Rathi AK, Cepe K, Zboril R, Varma RS, Gawande MB, Jayaram RV. Hexagonal Mesoporous Silica-Supported Copper Oxide (CuO/HMS) Catalyst: Synthesis of Primary Amides from Aldehydes in Aqueous Medium. Chempluschem 2017; 82:467-473. [PMID: 31962015 DOI: 10.1002/cplu.201600611] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/17/2017] [Indexed: 11/08/2022]
Abstract
Hexagonal mesoporous silica (HMS)-supported copper oxides (CuO/HMS) have been prepared by a sol-gel method and characterized by X-ray diffraction, FTIR spectroscopy, transmission electron microscopy, N2 sorption, inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), H2 temperature-programed reduction (TPR), NH3 temperature-programed desorption (TPD), and high-resolution (HR)-TEM techniques. An analysis of these results revealed a mesoporous material system with a high surface area (974 m2 g-1 ) and uniform pore-size distribution. The catalytic efficacy of CuO on the HMS support with varying Cu loadings (1, 3, 5, 10, and 15 wt %) was investigated for the transformation of aldehydes to primary amides; 3 wt % CuO/HMS exhibited good catalytic performance with good to excellent yields of amides (60-92 %) in benign aqueous medium. The intrinsically heterogeneous catalyst could be recovered after the reaction and reused without any noticeable loss in activity.
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Affiliation(s)
- Ravishankar G Kadam
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai, 400019, India
| | - Anuj K Rathi
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Klara Cepe
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Manoj B Gawande
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Radha V Jayaram
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai, 400019, India
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49
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Yun YS, Kim TY, Yun D, Lee KR, Han JW, Yi J. Understanding the Reaction Mechanism of Glycerol Hydrogenolysis over a CuCr 2 O 4 Catalyst. CHEMSUSCHEM 2017; 10:442-454. [PMID: 27863078 DOI: 10.1002/cssc.201601269] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/01/2016] [Indexed: 06/06/2023]
Abstract
The reaction mechanism of glycerol hydrogenolysis to 1,2-propanediol over a spinel CuCr2 O4 catalyst was investigated by using DFT calculations. Theoretical models were developed from the results of experimental characterization. Adsorption configurations and energetics of the reactant, intermediates, final product, and transition states were calculated on Cu(1 1 1) and CuCr2 O4 (1 0 0). Based on our DFT results, we found that the formation of acetol is preferred to that of 3-hydroxypropionaldehyde thermodynamically and kinetically on both surfaces. For glycerol hydrogenolysis to 1,2-propanediol, the CuCr2 O4 surface is less exothermic but more kinetically favorable than the Cu surface. The low activation barrier during the reaction on the CuCr2 O4 surface is attributed to the unique surface structure; the cubic spinel structure provides a stable adsorption site on which reactants are allowed to be dehydrated and hydrogenated easily with the characteristic adsorption configuration. The role of the Cu and Cr atoms in a CuCr2 O4 surface were revealed. The results of reaction tests supported our theoretical calculations.
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Affiliation(s)
- Yang Sik Yun
- World Class University Program of Chemical Convergence for Energy&Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Tae Yong Kim
- World Class University Program of Chemical Convergence for Energy&Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Danim Yun
- World Class University Program of Chemical Convergence for Energy&Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Kyung Rok Lee
- World Class University Program of Chemical Convergence for Energy&Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, University of Seoul, Seoul, 130-743, Republic of Korea
| | - Jongheop Yi
- World Class University Program of Chemical Convergence for Energy&Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
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50
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Singh L, Rekha P, Chand S. Cu-impregnated zeolite Y as highly active and stable heterogeneous Fenton-like catalyst for degradation of Congo red dye. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.06.059] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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