1
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Zhang S, Wang K, He F, Gao X, Fan S, Ma Q, Zhao T, Zhang J. H 2O Derivatives Mediate CO Activation in Fischer-Tropsch Synthesis: A Review. Molecules 2023; 28:5521. [PMID: 37513393 PMCID: PMC10384174 DOI: 10.3390/molecules28145521] [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: 06/30/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
The process of Fischer-Tropsch synthesis is commonly described as a series of reactions in which CO and H2 are dissociated and adsorbed on the metals and then rearranged to produce hydrocarbons and H2O. However, CO dissociation adsorption is regarded as the initial stage of Fischer-Tropsch synthesis and an essential factor in the control of catalytic activity. Several pathways have been proposed to activate CO, namely direct CO dissociation, activation hydrogenation, and activation by insertion into growing chains. In addition, H2O is considered an important by-product of Fischer-Tropsch synthesis reactions and has been shown to play a key role in regulating the distribution of Fischer-Tropsch synthesis products. The presence of H2O may influence the reaction rate, the product distribution, and the deactivation rate. Focus on H2O molecules and H2O-derivatives (H*, OH* and O*) can assist CO activation hydrogenation on Fe- and Co-based catalysts. In this work, the intermediates (C*, O*, HCO*, COH*, COH*, CH*, etc.) and reaction pathways were analyzed, and the H2O and H2O derivatives (H*, OH* and O*) on Fe- and Co-based catalysts and their role in the Fischer-Tropsch synthesis reaction process were reviewed.
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Affiliation(s)
- Shuai Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Kangzhou Wang
- School of Materials and New Energy, Ningxia University, Yinchuan 750021, China
| | - Fugui He
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xinhua Gao
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Subing Fan
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qingxiang Ma
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Tiansheng Zhao
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Jianli Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
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2
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Li K, Li X, Li L, Chang X, Wu S, Yang C, Song X, Zhao ZJ, Gong J. Nature of Catalytic Behavior of Cobalt Oxides for CO 2 Hydrogenation. JACS AU 2023; 3:508-515. [PMID: 36873681 PMCID: PMC9975827 DOI: 10.1021/jacsau.2c00632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/01/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Cobalt oxide (CoO x ) catalysts are widely applied in CO2 hydrogenation but suffer from structural evolution during the reaction. This paper describes the complicated structure-performance relationship under reaction conditions. An iterative approach was employed to simulate the reduction process with the help of neural network potential-accelerated molecular dynamics. Based on the reduced models of catalysts, a combined theoretical and experimental study has discovered that CoO(111) provides active sites to break C-O bonds for CH4 production. The analysis of the reaction mechanism indicated that the C-O bond scission of *CH2O species plays a key role in producing CH4. The nature of dissociating C-O bonds is attributed to the stabilization of *O atoms after C-O bond cleavage and the weakening of C-O bond strength by surface-transferred electrons. This work may offer a paradigm to explore the origin of performance over metal oxides in heterogeneous catalysis.
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Affiliation(s)
- Kailang Li
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Xianghong Li
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Lulu Li
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Xin Chang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Shican Wu
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Chengsheng Yang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Xiwen Song
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Zhi-Jian Zhao
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
| | - Jinlong Gong
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University; Collaborative Innovation Center for Chemical
Science and Engineering, Tianjin 300072, China
- Joint
School of National University of Singapore and Tianjin University,
International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
- National
Industry-Education Platform of Energy Storage, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
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3
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Wang SD, Chen JJ, Liu YZ, Ma TM, Li XN, He SG. Facile CO bond cleavage on polynuclear vanadium nitride clusters V 4N 5. Phys Chem Chem Phys 2022; 24:29765-29771. [PMID: 36458914 DOI: 10.1039/d2cp04304a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Identifying the structural configurations of precursors for CO dissociation is fundamentally interesting and industrially important in the fields of, e.g., Fischer-Tropsch synthesis. Herein, we demonstrated that CO could be dissociated on polynuclear vanadium nitride V4N5- clusters at room temperature, and a key intermediate, with CO in a N-assisted tilted bridge coordination where the C-O bond ruptures easily, was discovered. The reaction was characterized by mass spectrometry, photoelectron spectroscopy, and quantum-chemistry calculations, and the nature of the adsorbed CO on product V4N5CO- was further characterized by a collision-induced dissociation experiment. Theoretical analysis evidences that CO dissociation is predominantly governed by the low-coordinated V and N atoms on the (V3N4)VN- cluster and the V3N4 moiety resembles a support. This finding strongly suggests that a novel mode for facile CO dissociation was identified in a gas-phase cluster study.
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Affiliation(s)
- Si-Dun Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China. .,State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
| | - Jiao-Jiao Chen
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. .,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Yun-Zhu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China.,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Tong-Mei Ma
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. .,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China.,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
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4
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Vasiliades MA, Govender NS, Govender A, Crous R, Moodley D, Botha T, Efstathiou AM. The Effect of H 2 Pressure on the Carbon Path of Methanation Reaction on Co/γ-Al 2O 3: Transient Isotopic and Operando Methodology Studies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michalis A. Vasiliades
- Department of Chemistry, Heterogeneous Catalysis Laboratory, University of Cyprus, University Campus,
P.O. Box 20537, Nicosia, CY2109, Cyprus
| | - Nilenindran S. Govender
- Research and Technology, Energy Operations and Technology, Sasol South Africa, 1 Klasie Havenga Street, Sasolburg1947, South Africa
| | - Ashriti Govender
- Research and Technology, Energy Operations and Technology, Sasol South Africa, 1 Klasie Havenga Street, Sasolburg1947, South Africa
| | - Renier Crous
- Research and Technology, Energy Operations and Technology, Sasol South Africa, 1 Klasie Havenga Street, Sasolburg1947, South Africa
| | - Denzil Moodley
- Research and Technology, Energy Operations and Technology, Sasol South Africa, 1 Klasie Havenga Street, Sasolburg1947, South Africa
| | - Thys Botha
- Research and Technology, Energy Operations and Technology, Sasol South Africa, 1 Klasie Havenga Street, Sasolburg1947, South Africa
| | - Angelos M. Efstathiou
- Department of Chemistry, Heterogeneous Catalysis Laboratory, University of Cyprus, University Campus,
P.O. Box 20537, Nicosia, CY2109, Cyprus
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5
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Tucker CL, Ragoo Y, Mathe S, Macheli L, Bordoloi A, Rocha TC, Govender S, Kooyman PJ, van Steen E. Manganese promotion of a cobalt Fischer-Tropsch catalyst to improve operation at high conversion. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Wang Y, Yang X, Xiao L, Qi Y, Yang J, Zhu YA, Holmen A, Xiao W, Chen D. Descriptor-Based Microkinetic Modeling and Catalyst Screening for CO Hydrogenation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yalan Wang
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Xiaoli Yang
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
- State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao 266071, P. R. China
| | - Ling Xiao
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanying Qi
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Jia Yang
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Yi-An Zhu
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Anders Holmen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
| | - Wende Xiao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai 200240, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
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7
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Mohammadnasabomran S, Márquez-Álvarez C, Pérez-Pariente J, Martínez A. Short-channel mesoporous SBA-15 silica modified by aluminum grafting as a support for CoRu Fischer–Tropsch synthesis catalysts. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02418j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Highly ordered short-channel mesoporous silica SBA-15 with large pores (11.2 nm) was synthesized from tetramethyl orthosilicate, using the block copolymer Pluronic PE-10400 as structure-directing agent, and triisopropylbenzene as a swelling agent.
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Affiliation(s)
| | | | | | - Agustín Martínez
- Instituto de Tecnología Química
- Universitat Politècnica de València – Consejo Superior de Investigaciones Científicas (UPV – CSIC)
- 46022 Valencia
- Spain
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8
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Bertella F, Lopes CW, Foucher AC, Agostini G, Concepción P, Stach EA, Martínez A. Insights into the Promotion with Ru of Co/TiO2 Fischer–Tropsch Catalysts: An In Situ Spectroscopic Study. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05359] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francine Bertella
- Instituto de Tecnología Química, Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas (UPV−CSIC), Avda. de los Naranjos s/n, 46022 Valencia, Spain
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul—UFRGS, Av. Bento Gonçalves, 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Christian W. Lopes
- Instituto de Tecnología Química, Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas (UPV−CSIC), Avda. de los Naranjos s/n, 46022 Valencia, Spain
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul—UFRGS, Av. Bento Gonçalves, 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Alexandre C. Foucher
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Giovanni Agostini
- CELLS—ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain
| | - Patricia Concepción
- Instituto de Tecnología Química, Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas (UPV−CSIC), Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Eric A. Stach
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Agustín Martínez
- Instituto de Tecnología Química, Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas (UPV−CSIC), Avda. de los Naranjos s/n, 46022 Valencia, Spain
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9
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10
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Fischer–Tropsch Synthesis: Computational Sensitivity Modeling for Series of Cobalt Catalysts. Catalysts 2019. [DOI: 10.3390/catal9100857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Nearly a century ago, Fischer and Tropsch discovered a means of synthesizing organic compounds ranging from C1 to C70 by reacting carbon monoxide and hydrogen on a catalyst. Fischer–Tropsch synthesis (FTS) is now known as a pseudo-polymerization process taking a mixture of CO as H2 (also known as syngas) to produce a vast array of hydrocarbons, along with various small amounts of oxygenated materials. Despite the decades spent studying this process, it is still considered a black-box reaction with a mechanism that is still under debate. This investigation sought to improve our understanding by taking data from a series of experimental Fischer–Tropsch synthesis runs to build a computational model. The experimental runs were completed in an isothermal continuous stirred-tank reactor, allowing for comparison across a series of completed catalyst tests. Similar catalytic recipes were chosen so that conditional comparisons of pressure, temperature, SV, and CO/H2 could be made. Further, results from the output of the reactor that included the deviations in product selectivity, especially that of methane and CO2, were considered. Cobalt was chosen for these exams for its industrial relevance and respectfully clean process as it does not intrinsically undergo the water–gas shift (WGS). The primary focus of this manuscript was to compare runs using cobalt-based catalysts that varied in two oxide catalyst supports. The results were obtained by creating two differential equations, one for H2 and one for CO, in terms of products or groups of products. These were analyzed using sensitivity analysis (SA) to determine the products or groups that impact the model the most. The results revealed a significant difference in sensitivity between the two catalyst–support combinations. When the model equations for H2 and CO were split, the results indicated that the CO equation was significantly more sensitive to CO2 production than the H2 equation.
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11
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Highly dispersed cobalt Fischer–Tropsch synthesis catalysts supported on γ-Al2O3, CNTs, and graphene nanosheet using chemical vapor deposition. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2019. [DOI: 10.1007/s40090-019-00195-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Abstract
Highly dispersed 15.0 wt% cobalt catalysts were prepared on γ-Al2O3, carbon nanotubes (CNTs), and graphene nanosheet (GNS) using chemical vapor deposition (CVD) procedure. The physico-chemical properties of the catalysts were studied by inductively coupled plasma (ICP), Brunauer–Emmett–Teller (BET), X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FESEM), and temperature-programmed reduction (TPR) techniques, and the Fischer–Tropsch synthesis (FTS) performance of the catalysts was assessed at 220 °C, 18 bar, H2/CO = 2 and feed flow rate of 45 ml/min g cat. Based on BET results, Co/GNS catalyst provided highest surface area in comparison to the other catalysts. XRD and FESEM results revealed that CVD method prepared smaller particles on GNS compared to the other supports and resulted in the most dispersed metal particles on GNS according to H2-chemisorption results. The performance of Co/Al2O3 catalyst prepared by CVD method was compared with conventional 15 wt% Co/Al2O3 catalyst prepared by impregnation method. The Co/Al2O3 catalyst prepared with CVD method showed 5.3% higher %CO conversion and 2.1% lower C5+ selectivity as compared with the Co/Al2O3 catalysts prepared by impregnation method. Among three catalysts prepared by CVD, Co/GNS showed higher %CO conversion of 78.4% and C5+ selectivity of 70.3%. Co/γ-Al2O3 catalyst showed higher stability.
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12
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De Vrieze JE, Bremmer GM, Aly M, Navarro V, Thybaut JW, Kooyman PJ, Saeys M. Shape of Cobalt and Platinum Nanoparticles Under a CO Atmosphere: A Combined In Situ TEM and Computational Catalysis Study. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01840] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jenoff E. De Vrieze
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - G. Marien Bremmer
- Huygens-Kamerlingh Onnes Laboratory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Mostafa Aly
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Violeta Navarro
- Huygens-Kamerlingh Onnes Laboratory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Joris W. Thybaut
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Patricia J. Kooyman
- Catalysis Institute, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa
| | - Mark Saeys
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
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13
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Yao Z, Guo C, Mao Y, Hu P. Quantitative Determination of C–C Coupling Mechanisms and Detailed Analyses on the Activity and Selectivity for Fischer–Tropsch Synthesis on Co(0001): Microkinetic Modeling with Coverage Effects. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01150] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zihao Yao
- School of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
| | - Chenxi Guo
- School of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
| | - Yu Mao
- School of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
| | - P. Hu
- School of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, U.K
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14
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Pestman R, Chen W, Hensen E. Insight into the Rate-Determining Step and Active Sites in the Fischer–Tropsch Reaction over Cobalt Catalysts. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00185] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Robert Pestman
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 3, 5612 AE Eindhoven, The Netherlands
| | - Wei Chen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 3, 5612 AE Eindhoven, The Netherlands
| | - Emiel Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 3, 5612 AE Eindhoven, The Netherlands
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15
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Sarkar C, Pendem S, Shrotri A, Dao DQ, Pham Thi Mai P, Nguyen Ngoc T, Chandaka DR, Rao TV, Trinh QT, Sherburne MP, Mondal J. Interface Engineering of Graphene-Supported Cu Nanoparticles Encapsulated by Mesoporous Silica for Size-Dependent Catalytic Oxidative Coupling of Aromatic Amines. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11722-11735. [PMID: 30838855 DOI: 10.1021/acsami.8b18675] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, graphene nanosheet-supported ultrafine Cu nanoparticles (NPs) encapsulated with thin mesoporous silica (Cu-GO@m-SiO2) materials are fabricated with particle sizes ranging from 60 to 7.8 nm and are systematically investigated for the oxidative coupling of amines to produce biologically and pharmaceutically important imine derivatives. Catalytic activity remarkably increased from 76.5% conversion of benzyl amine for 60 nm NPs to 99.3% conversion and exclusive selectivity of N-benzylidene-1-phenylmethanamine for 7.8 nm NPs. The superior catalytic performance along with the outstanding catalyst stability of newly designed catalysts are attributed to the easy diffusion of organic molecules through the porous channel of mesoporous SiO2 layers, which not only restricts the restacking of the graphene nanosheets but also prevents the sintering and leaching of metal NPs to an extreme extent through the nanoconfinement effect. Density functional theory calculations were performed to shed light on the reaction mechanism and to give insight into the trend of catalytic activity observed. The computed activation barriers of all elementary steps are very high on terrace Cu(111) sites, which dominate the large-sized Cu NPs, but are significantly lower on step sites, which are presented in higher density on smaller-sized Cu NPs and could explain the higher activity of smaller Cu-GO@m-SiO2 samples. In particular, the activation barrier for the elementary coupling reaction is reduced from 139 kJ/mol on flat terrace Cu(111) sites to the feasible value of 94 kJ/mol at step sites, demonstrating the crucial role of the step site in facilitating the formation of secondary imine products.
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Affiliation(s)
- Chitra Sarkar
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Saikiran Pendem
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Abhijit Shrotri
- Institute for Catalysis , Hokkaido University , Kita 21 Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Duy Quang Dao
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
| | | | | | - Dhanunjaya Rao Chandaka
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Tumula Venkateshwar Rao
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Quang Thang Trinh
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
- Cambridge Centre for Advanced Research and Education in Singapore (CARES) , Campus for Research Excellence and Technological Enterprise (CREATE) , 1 Create Way , 138602 , Singapore
| | - Matthew P Sherburne
- A Singapore Berkeley Research Initiative for Sustainable Energy , Berkeley Educational Alliance for Research in Singapore , 1 Create Way , 138602 , Singapore
- Materials Science and Engineering Department , University of California, Berkeley , Berkeley , California 94720 , United States
| | - John Mondal
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
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16
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De Vrieze JE, Gunasooriya GTKK, Thybaut JW, Saeys M. Operando computational catalysis: shape, structure, and coverage under reaction conditions. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2019.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Castillo J, Arteaga-Pérez LE, Karelovic A, Jiménez R. The consequences of surface heterogeneity of cobalt nanoparticles on the kinetics of CO methanation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01753d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The CO hydrogenation reaction was studied under methanation conditions (H2/CO >3, 250–300 °C) on Co/SiO2 catalysts with different mean Co nanoparticle size (dp = 4 nm, 13 nm and 33 nm).
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Affiliation(s)
- José Castillo
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Concepcion
- Chile
| | - Luis E. Arteaga-Pérez
- Laboratory of Thermal and Catalytic Processes (LPTC)
- Department of Wood Engineering
- University of Bio-Bio
- Concepcion
- Chile
| | - Alejandro Karelovic
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Concepcion
- Chile
| | - Romel Jiménez
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Concepcion
- Chile
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18
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De Wispelaere K, Martínez-Espín JS, Hoffmann MJ, Svelle S, Olsbye U, Bligaard T. Understanding zeolite-catalyzed benzene methylation reactions by methanol and dimethyl ether at operating conditions from first principle microkinetic modeling and experiments. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.02.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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