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Xue M, Jia J, Wu H. A density functional theory study on the catalytic performance of metal (Ni, Pd) single atom, dimer and trimer for H2 dissociation. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2021.111336] [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]
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2
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C2H2 semi-hydrogenation on the Pdshell@Mcore (M = Cu, Ag, Au) alloy catalysts: The influence of shell Pd ensemble form on the catalytic activity and selectivity. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Qi Y, Wang B, Fan M, Li D, Zhang R. C2H2 semi-hydrogenation on the metal M (M = Cu, Ag, Au) alloyed single-atom Pd catalysts: Effects of Pd coordination number and environment on the catalytic performance. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Yuan D, Cai L, Xie T, Liao H, Hu W. Selective hydrogenation of acetylene on Cu-Pd intermetallic compounds and Pd atoms substituted Cu(111) surfaces. Phys Chem Chem Phys 2021; 23:8653-8660. [PMID: 33876026 DOI: 10.1039/d0cp05285j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective hydrogenation of acetylene was studied on the ordered Cu-Pd intermetallic compounds (L10-type CuPd, L12-type Cu3Pd, and L12-type CuPd3) and Pd-modified Cu(111) surfaces through first-principles calculations. The catalytic selectivity and activity of Cu-Pd alloy catalysts are closely related to the crystal structure and composition of Cu-Pd intermetallic compounds and the size of Pd ensembles of Cu-based dilute alloy surface for the selective hydrogenation of acetylene to ethylene. Significantly, we found that the ordered Cu-Pd alloy surface containing isolated Pd atoms (i.e., L12-type Cu3Pd(111) surface) is highly efficient for the selective hydrogenation reaction of C2H2 + H2→ C2H4. The contiguous Pd atom ensembles (Pd dimer and trimer) are catalytically active towards C2H2 + H → C2H3 and C2H3 + H → C2H4 reactions than the single Pd atom on a Pd-decorated Cu(111) surface. However, the small Pd ensembles on Cu(111) present a low chemical activity for H2 dissociation compared with the ordered Cu-Pd intermetallic compounds. Our theoretical results provide a strategy of crystal phase and composition control for enhancing the selectivity and activity of Cu-Pd catalysts towards acetylene selective hydrogenation.
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Affiliation(s)
- Dingwang Yuan
- Hunan University, College of Materials Science and Engineering, Changsha 410082, China.
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5
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Lu C, Zeng A, Wang Y, Wang A. Copper-Based Catalysts for Selective Hydrogenation of Acetylene Derived from Cu(OH) 2. ACS OMEGA 2021; 6:3363-3371. [PMID: 33553954 PMCID: PMC7860242 DOI: 10.1021/acsomega.0c05759] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 12/24/2020] [Indexed: 05/28/2023]
Abstract
Replacing precious metals with cheap metals in catalysts is a topic of interest in both industry and academia but challenging. Here, a selective hydrogenation catalyst was prepared by thermal treatment of Cu(OH)2 nanowires with acetylene-containing gas at 120 °C followed by hydrogen reduction at 150 °C. The characterization by means of transmission electron microscopy observation, X-ray diffraction, and X-ray photoelectron spectroscopy revealed that two crystallites were present in the resultant catalyst. One of the crystal phases was metal Cu, whereas the other crystal phase was ascribed to an interstitial copper carbide (Cu x C) phase. The reduction of freshly prepared copper (II) acetylide (CuC2) at 150 °C also afforded the formation of Cu and Cu x C crystallites, indicating that CuC2 was the precursor or an intermediate in the formation of Cu x C. The prepared catalysts consisting of Cu and Cu x C exhibited a considerably high hydrogenation activity at low temperatures in the selective hydrogenation of acetylene in the ethylene stream. In the presence of a large excess of ethylene, acetylene was completely converted at 110 °C and atmospheric pressure with an ethane selectivity of <15%, and the conversion and selectivity were constant in a 260 h run.
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Affiliation(s)
- Chenyang Lu
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Aonan Zeng
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yao Wang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- Liaoning
Key Laboratory of Petrochemical Technology and Equipment, Dalian University of Technology, Dalian 116024, P. R. China
| | - Anjie Wang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- Liaoning
Key Laboratory of Petrochemical Technology and Equipment, Dalian University of Technology, Dalian 116024, P. R. China
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6
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Gholinejad M, Khosravi F, Afrasi M, Sansano JM, Nájera C. Applications of bimetallic PdCu catalysts. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02339f] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetallic PdCu nanoparticles can be applied as catalysts in a wide range of chemical and electrochemical reactions.
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Affiliation(s)
- Mohammad Gholinejad
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
- Research Center for Basic Sciences & Modern Technologies (RBST)
| | - Faezeh Khosravi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Mahmoud Afrasi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - José M. Sansano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
- Departamento de Química Orgánica e Instituto de Síntesis Orgánica
| | - Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
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7
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The effects of doping metal type and ratio on the catalytic performance of C2H2 semi-hydrogenation over the intermetallic compound-containing Pd catalysts. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116131] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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8
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Lu C, Wang Y, Zhang R, Wang B, Wang A. Preparation of an Unsupported Copper-Based Catalyst for Selective Hydrogenation of Acetylene from Cu 2O Nanocubes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46027-46036. [PMID: 32945161 DOI: 10.1021/acsami.0c12522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Designing cheap, earth-abundant, and nontoxic metal catalysts for acetylene hydrogenation is of pivotal importance, but challenging. Here, a nonprecious metal catalyst for selective hydrogenation of acetylene in excess ethylene was prepared from Cu2O nanocubes. The preparation includes two steps: (1) thermal treatment in acetylene-containing gas at 160 °C and (2) hydrogen reduction at 180 °C. The resultant catalyst showed outstanding performance at low temperature (80-100 °C) and 0.1-0.5 MPa pressure, completely converting acetylene with a low selectivity to undesired ethane (<20%). The characterization results of high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy corroborated that the formation of an interstitial copper carbide (CuxC) might give rise to significantly enhanced hydrogenation activity. Preliminary density functional theory calculation demonstrated that the lattice spacing of Cu3C was nearly identical to that of the new CuxC crystallite measured in HRTEM and determined by XRD. The calculated dissociation energy of hydrogen on Cu3C(0001) was considerably lower than that on Cu(111), suggesting superior hydrogenation activity of Cu3C(0001). It is experimentally verified that copper(I) acetylide (Cu2C2) might be the precursor of CuxC. Cu2C2 underwent partial hydrogenation to fabricate CuxC crystallites and the thermal decomposition to Cu and carbon materials in parallel.
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Affiliation(s)
- Chenyang Lu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yao Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- Liaoning Key Laboratory of Petrochemical Technology and Equipment, Dalian University of Technology, Dalian 116024, P. R. China
| | - Riguang Zhang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024 Shanxi, P. R. China
| | - Baojun Wang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024 Shanxi, P. R. China
| | - Anjie Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- Liaoning Key Laboratory of Petrochemical Technology and Equipment, Dalian University of Technology, Dalian 116024, P. R. China
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9
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Probe into the effects of surface composition and ensemble effect of active sites on the catalytic performance of C2H2 semi-hydrogenation over the Pd-Ag bimetallic catalysts. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115549] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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11
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High-performance Pd/brass-fiber catalyst for selective hydrogenation of acetylene: Effect of calcination-assisted endogenous growth of ZnO-CuOx on brass-fiber. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Probing into the effects of cluster size and Pd ensemble as active center on the activity of H2 dissociation over the noble metal Pd-doped Cu bimetallic clusters. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Tang Q, Ji W, Russell CK, Zhang Y, Fan M, Shen Z. A new and different insight into the promotion mechanisms of Ga for the hydrogenation of carbon dioxide to methanol over a Ga-doped Ni(211) bimetallic catalyst. NANOSCALE 2019; 11:9969-9979. [PMID: 31070648 DOI: 10.1039/c9nr01245a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The hydrogenation of CO2 to CH3OH is one of the most promising technologies for the utilization of captured CO2 in the future. Nano Ni-Ga bimetallic catalysts have been proven to be excellent catalysts in the hydrogenation of CO2 to CH3OH. To investigate the promotion mechanisms of Ga for the hydrogenation of CO2 to CH3OH over Ga-doped Ni catalysts and the wide application of these promotion mechanisms in other catalysts and reactions, herein, density functional theory (DFT) was employed. The reaction mechanisms and the properties of Ni(211) and Ga-Ni(211) surfaces were comparatively studied. The results show that the Ni sites on both the Ni(211) and the Ga-Ni(211) surfaces are active sites, and the most stable structures of the intermediates are similar. Moreover, the Ga-Ni(211) surface is more favorable for the hydrogenation of CO2, whereas Ni(211) is more favorable for the dissociation of CO2. The activation barrier of the rate-limiting step in the CH3OH formation pathway on Ni(211) is 0.54 eV higher than that on Ga-Ni(211). According to the analyses of the projected density of states (PDOS) and Hirshfeld charge transfer, the addition of Ga atoms demonstrates the reactivity of the Ga-doped Ni(211) surfaces. Most importantly, the replacement of some secondary active sites of Ni atoms with the non-active Ga atoms may lower the activities of the secondary active sites and strengthen the activities of the active sites at the step edge. These results provide a new perspective for the reaction mechanism of the hydrogenation of CO2 to CH3OH over the state-of-the-art Ga-doped catalysts.
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Affiliation(s)
- Qingli Tang
- School of Energy Resouces and Departments of Chemical and Petroleum Engineering, University of Wyoming, 1000 East University Avenue, Laramie, 82071, Wyoming, USA. and School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, P.R. China.
| | - Wenchao Ji
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, P.R. China.
| | - Christopher K Russell
- Department of Civil and Environmental Engineering, Stanford University, Stanford 94305, CA, USA
| | - Yulong Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, P. R. China
| | - Maohong Fan
- School of Energy Resouces and Departments of Chemical and Petroleum Engineering, University of Wyoming, 1000 East University Avenue, Laramie, 82071, Wyoming, USA. and School of Civil and Environmental Engineering, Georgia Institute of Technology, North Avenue, Atlanta 30332, Georgia, USA
| | - Zhemin Shen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, P.R. China.
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14
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Tao Y, Krishna R, Yang LX, Fan YL, Wang L, Gao Z, Xiong JB, Sun LJ, Luo F. Enhancing C2H2/C2H4 separation by incorporating low-content sodium in covalent organic frameworks. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00922a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and general method by means of doping low-content Na+ ions into COFs to enhance C2H2/C2H4 separation potential is proposed herein.
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Affiliation(s)
- Yuan Tao
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Rajamani Krishna
- Van‘t Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1098 XH Amsterdam
- The Netherlands
| | - Li Xiao Yang
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Ya Ling Fan
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Li Wang
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Zhi Gao
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Jian Bo Xiong
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Li Jun Sun
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
| | - Feng Luo
- State Key Laboratory for Nuclear Resources and Environment
- and School of Biology
- Chemistry and Material Science
- East China University of Technology
- Nanchang
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