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Tsai DH, Wu TT, Lin HC, Chueh LY, Lin KH, Yu WY, Pan YT. Cu/MgO Reverse Water Gas Shift Catalyst with Unique CO 2 Adsorption Behaviors. Chem Asian J 2024:e202300955. [PMID: 38332680 DOI: 10.1002/asia.202300955] [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: 10/31/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/10/2024]
Abstract
Activation of inert CO2 molecules for the reverse water gas shift (RWGS) reaction is tackled by incorporating magnesium oxide as a support material for copper, forming a Cu/MgO supported catalyst. The RWGS performance is greatly improved when compared with pure Cu or carbon supported Cu (Cu/C). Operating under a weight hourly space velocity (WHSV) of 300,000 mL ⋅ g-1 ⋅ h-1 , the Cu/MgO catalyst demonstrates high activity, maintaining over 70 % equilibrium conversion and nearly 100 % CO selectivity in a temperature range of 300-600 °C. In contrast, both Cu/C and commercial Cu, even at ten-times lower WHSV, can only achieve up to 40 % of the equilibrium conversion and quickly deactivated due to sintering. Based on the studies of in-situ temperature resolved infrared spectroscopy and temperature programmed desorption, the improved RWGS performance is attributed to the unique adsorption behavior of CO2 on Cu/MgO. Density functional theory studies provides a plausible explanation from a surface reaction perspective and reveals the spill-over property of CO2 from MgO to Cu being critical.
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Affiliation(s)
- Ding-Huei Tsai
- Department of Chemical Engineering, National Tsing Hua University, 101 Sec. 2, Kuang-Fu Rd., Hsinchu City, Taiwan, 300044
| | - Tung-Ta Wu
- Department of Chemical Engineering, National Taiwan University, 1 Section 4, Roosevelt Rd., Taipei City, Taiwan, 106319
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, 1 Section 4, Roosevelt Rd., Taipei City, Taiwan, 106319
| | - Hung-Chin Lin
- Department of Chemical Engineering, National Tsing Hua University, 101 Sec. 2, Kuang-Fu Rd., Hsinchu City, Taiwan, 300044
| | - Lu-Yu Chueh
- Department of Chemical Engineering, National Tsing Hua University, 101 Sec. 2, Kuang-Fu Rd., Hsinchu City, Taiwan, 300044
| | - Kun-Han Lin
- Department of Chemical Engineering, National Tsing Hua University, 101 Sec. 2, Kuang-Fu Rd., Hsinchu City, Taiwan, 300044
| | - Wen-Yueh Yu
- Department of Chemical Engineering, National Taiwan University, 1 Section 4, Roosevelt Rd., Taipei City, Taiwan, 106319
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, 1 Section 4, Roosevelt Rd., Taipei City, Taiwan, 106319
| | - Yung-Tin Pan
- Department of Chemical Engineering, National Tsing Hua University, 101 Sec. 2, Kuang-Fu Rd., Hsinchu City, Taiwan, 300044
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Wu HY, Qin YY, Xiao YH, Chen JS, Ye R, Guo R, Yao YG. Boosting Activity and Selectivity of UiO-66 through Acidity/Alkalinity Functionalization in Dimethyl Carbonate Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208238. [PMID: 36734211 DOI: 10.1002/smll.202208238] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/13/2023] [Indexed: 05/04/2023]
Abstract
The acid-base properties of supports have an enormous impact on catalytic reactions to regulate the selectivity and activity of supported catalysts. Herein, a train of Pd-X-UiO-66 (X = NO2 , NH2 , and CH3 ) catalysts with different acidity/alkalinity functional groups and encapsulated Pd(II) species is first developed, whose activities in dimethyl carbonate (DMC) catalysis are then investigated in details. Thereinto, the Pd-NO2 -UiO-66 catalyst with acidity functionalization exhibits the best catalytic behavior: the DMC selectivity stemmed from methyl nitrite (MN) is up to 68%, the conversion of CO is 73.4%. The obtained experimental results demonstrate that the NO2 group not only affected the interaction between X-UiO-66 and Pd(II) active sites but also play an indispensable role in the adsorption and activation of MN and CO, which remarkably promote the formation of the COOCH3 * intermediate and DMC product.
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Affiliation(s)
- Han-Ying Wu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ye-Yan Qin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Yi-Hong Xiao
- College of Environmental and Biological Engineering, Putian University, Putian, 351100, P. R. China
| | - Jian-Shan Chen
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Runping Ye
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Rong Guo
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Yuan-Gen Yao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Jin Lee H, Tung Nguyen T, Vy Tran A, Sik Kim H, Suh YW, Baek J, Jin Kim Y. Engineering pKa value of 3° amine for enhanced production of dialkyl carbonate via Se-catalyzed oxidative carbonylation. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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DFT Investigations of the Reaction Mechanism of Dimethyl Carbonate Synthesis from Methanol and CO on Various Cu Species in Y Zeolites. Catalysts 2023. [DOI: 10.3390/catal13030477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
In this study, a density functional theory method is employed to investigate the reaction mechanisms of dimethyl carbonate (DMC) formation, through oxidative carbonylation of methanol, on four types of Y zeolites doped with Cu+, Cu2+, Cu2O and CuO, respectively. A common chemical route is found for these zeolites and identified as, first, the adsorbed CH3OH is oxidized to CH3O species; subsequently, CO inserts into CH3O to CH3OCO, which reacts with CH3O to form DMC rapidly; and finally, the adsorbed DMC is released into the gas phase. The rate-limiting step on Cu2+Y zeolite is identified as oxidation of CH3OH to CH3O with activation barrier of 66.73 kJ·mol−1. While for Cu+Y, Cu2O-Y and CuO-Y zeolites, the rate-limiting step is insertion of CO into CH3O, and the corresponding activation barriers are 63.73, 60.01 and 104.64 kJ·mol−1, respectively. For Cu+Y, Cu2+Y and Cu2O-Y zeolites, adsorbed CH3OH is oxidized to CH3O with the presence of oxygen, whereas oxidation of CH3OH on CuO-Y is caused by the lattice oxygen of CuO. The order of catalytic activities of these four types of zeolites with different Cu states follows Cu+Y ≈ Cu2O-Y > Cu2+Y > CuO-Y zeolite. Therefore, CuY catalysts with Cu+ and Cu2O as dominated Cu species are beneficial to the formation of DMC.
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Copper nanoparticles control of carbon supported copper catalysts for dimethyl carbonate synthesis: A short review. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Liu C, Chi Z, Yan Y, Lu Z, Li XG, Yan JM, Luo M, Xiao W. Tunable Transesterification of Dimethyl Carbonate with Ethanol on K 2CO 3/Al 2O 3 Catalysts: Kinetic Modeling. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chengwei Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Ziyi Chi
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Yong Yan
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Zhenyang Lu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Xue-Gang Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Jian-Min Yan
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Man Luo
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
| | - Wende Xiao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University (SJTU), Shanghai200240, China
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Ren X, Quan Y, Yang W, Zhao J, Shi R, Ren J. Highly efficient super activated carbon supported ultra-low loading copper catalyst for the oxidative carbonylation of methanol to dimethyl carbonate. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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