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Yang H, Li G, Liu Q, Cheng H, Wang X, Cheng J, Jiang G, Zhang F, Zhang Z, Hao Z. Tailoring the Electronic Metal-Support Interactions in Supported Silver Catalysts through Al modification for Efficient Ethylene Epoxidation. Angew Chem Int Ed Engl 2024; 63:e202400627. [PMID: 38390644 DOI: 10.1002/anie.202400627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Metal-modified catalysts have attracted extraordinary research attention in heterogeneous catalysis due to their enhanced geometric and electronic structures and outstanding catalytic performances. Silver (Ag) possesses necessary active sites for ethylene epoxidation, but the catalyst activity is usually sacrificed to obtain high selectivity towards ethylene oxide (EO). Herein, we report that using Al can help in tailoring the unoccupied 3d state of Ag on the MnO2 support through strong electronic metal-support interactions (EMSIs), overcoming the activity-selectivity trade-off for ethylene epoxidation and resulting in a very high ethylene conversion rate (~100 %) with 90 % selectivity for EO under mild conditions (170 °C and atmospheric pressure). Structural characterization and theoretical calculations revealed that the EMSIs obtained by the Al modification tailor the unoccupied 3d state of Ag, modulating the adsorption of ethylene (C2H4) and oxygen (O2) and facilitating EO desorption, resulting in high C2H4 conversion. Meanwhile, the increased number of positively charge Ag+ lowers the energy barrier for C2H4(ads) oxidation to produce oxametallacycle (OMC), inducing the unexpectedly high EO selectivity. Such an extraordinary electronic promotion provides new promising pathways for designing advanced metal catalysts with high activity and selectivity in selective oxidation reactions.
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Affiliation(s)
- Hongling Yang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
- Beijing Key Laboratory for VOCs Pollution Prevention and Treatment Technology and Application of Urban Air, Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China
| | - Ganggang Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Qinggang Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Haixia Cheng
- Material Digital R&D Center, China Iron & Steel Research Institute Group, Beijing, 100081, China
| | | | - Jie Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Guoxia Jiang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Fenglian Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Zhongshen Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
| | - Zhengping Hao
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of the Chinese Academy of Sciences, Beijing, 101408, China
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Particle size dependence of ethylene epoxidation rates on Ag/α-Al2O3 catalysts: Why particle size distributions matter. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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3
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Effect of Bulk and Surface Composition of Ni+Ga Intermetallic Compound Catalysts in Propane Steam/Wet Reforming: Origins of Nearly Ideal Experimental Product Selectivity. J Catal 2022. [DOI: 10.1016/j.jcat.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Sampath A, Ricciardulli T, Priyadarshini P, Ghosh R, Adams JS, Flaherty DW. Spectroscopic Evidence for the Involvement of Interfacial Sites in O–O Bond Activation over Gold Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02076] [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)
- Abinaya Sampath
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Tomas Ricciardulli
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Pranjali Priyadarshini
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Richa Ghosh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jason S. Adams
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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Li H, Abraham CS, Anand M, Cao A, Nørskov JK. Opportunities and Challenges in Electrolytic Propylene Epoxidation. J Phys Chem Lett 2022; 13:2057-2063. [PMID: 35212546 DOI: 10.1021/acs.jpclett.2c00257] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Propylene oxide (PO) is an important chemical. So far, its synthesis protocol relies on expensive oxidants. In contrast, direct epoxidation of propylene (DEP) using molecular oxygen is considered ideal for PO synthesis. Unfortunately, DEP has not met industrial demands due to the low propylene conversion and high side-product selectivity for known catalysts. Instead of a thermal process using molecular oxygen, electrolytic propylene oxidation can synthesize PO at room temperature, using the atomic oxygen generated from water-splitting. Herein, using density functional theory, surface Pourbaix analysis, scaling relation analysis, and microkinetic modeling, we show that (i) propylene epoxidation is facile on weak-binding catalysts if reactive atomic oxygen preexists; (ii) electrolytic epoxidation is facile to provide atomic oxygen for epoxidation, while hydroperoxyl formation does not overwhelm the epoxidation process at the potential of interest; (iii) propylene dehydrogenation is a competing step that forms side products. Finally, we discuss the opportunities and challenges of this green PO synthesis method.
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Affiliation(s)
- Hao Li
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, Lyngby 2800, Denmark
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
| | - Christina Susan Abraham
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, Lyngby 2800, Denmark
| | - Megha Anand
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, Lyngby 2800, Denmark
| | - Ang Cao
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, Lyngby 2800, Denmark
| | - Jens K Nørskov
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, Lyngby 2800, Denmark
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6
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Chen BWJ, Wang B, Sullivan MB, Borgna A, Zhang J. Unraveling the Synergistic Effect of Re and Cs Promoters on Ethylene Epoxidation over Silver Catalysts with Machine Learning-Accelerated First-Principles Simulations. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Benjamin W. J. Chen
- Agency for Science, Technology and Research, Institute of High Performance Computing, 1 Fusionopolis Way, #16−16 Connexis, Singapore 138632, Singapore
| | - Bo Wang
- Agency for Science, Technology and Research, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
| | - Michael B. Sullivan
- Agency for Science, Technology and Research, Institute of High Performance Computing, 1 Fusionopolis Way, #16−16 Connexis, Singapore 138632, Singapore
| | - Armando Borgna
- Agency for Science, Technology and Research, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
| | - Jia Zhang
- Agency for Science, Technology and Research, Institute of High Performance Computing, 1 Fusionopolis Way, #16−16 Connexis, Singapore 138632, Singapore
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7
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Ren J, Wang L, Li P, Xing X, Wang H, Lv B. Ag supported on alumina for the epoxidation of 1-hexene with molecular oxygen: the effect of Ag +/Ag 0. NEW J CHEM 2022. [DOI: 10.1039/d1nj05926b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The catalytic liquid-phase oxidation of 1-hexene with O2 using Ag/porous bowl-shaped alumina shows good selectivity for the epoxidation product.
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Affiliation(s)
- Jingzhao Ren
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liancheng Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Penghui Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangying Xing
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huixiang Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Baoliang Lv
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
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