1
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Chen S, Xu Y, Chang X, Pan Y, Sun G, Wang X, Fu D, Pei C, Zhao ZJ, Su D, Gong J. Defective TiO x overlayers catalyze propane dehydrogenation promoted by base metals. Science 2024; 385:295-300. [PMID: 39024431 DOI: 10.1126/science.adp7379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/29/2024] [Indexed: 07/20/2024]
Abstract
The industrial catalysts utilized for propane dehydrogenation (PDH) to propylene, an important alternative to petroleum-based cracking processes, either use expensive metals or metal oxides that are environmentally unbenign. We report that a typically less-active oxide, titanium oxide (TiO2), can be combined with earth-abundant metallic nickel (Ni) to form an unconventional Ni@TiOx catalyst for efficient PDH. The catalyst demonstrates a 94% propylene selectivity at 40% propane conversion and superior stability under industrially relevant conditions. Complete encapsulation of Ni nanoparticles was allowed at elevated temperatures (>550°C). A mechanistic study suggested that the defective TiOx overlayer consisting of tetracoordinated Ti sites with oxygen vacancies is catalytically active. Subsurface metallic Ni acts as an electronic promoter to accelerate carbon-hydrogen bond activation and hydrogen (H2) desorption on the TiOx overlayer.
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Affiliation(s)
- Sai Chen
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Yiyi Xu
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Xin Chang
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Yue Pan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Guodong Sun
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Xianhui Wang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Donglong Fu
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Chunlei Pei
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Zhi-Jian Zhao
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, China
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jinlong Gong
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, 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, Tianjin 300350, China
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2
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Olowoyo JO, Gharahshiran VS, Zeng Y, Zhao Y, Zheng Y. Atomic/molecular layer deposition strategies for enhanced CO 2 capture, utilisation and storage materials. Chem Soc Rev 2024; 53:5428-5488. [PMID: 38682880 DOI: 10.1039/d3cs00759f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Elevated levels of carbon dioxide (CO2) in the atmosphere and the diminishing reserves of fossil fuels have raised profound concerns regarding the resulting consequences of global climate change and the future supply of energy. Hence, the reduction and transformation of CO2 not only mitigates environmental pollution but also generates value-added chemicals, providing a dual remedy to address both energy and environmental challenges. Despite notable advancements, the low conversion efficiency of CO2 remains a major obstacle, largely attributed to its inert chemical nature. It is imperative to engineer catalysts/materials that exhibit high conversion efficiency, selectivity, and stability for CO2 transformation. With unparalleled precision at the atomic level, atomic layer deposition (ALD) and molecular layer deposition (MLD) methods utilize various strategies, including ultrathin modification, overcoating, interlayer coating, area-selective deposition, template-assisted deposition, and sacrificial-layer-assisted deposition, to synthesize numerous novel metal-based materials with diverse structures. These materials, functioning as active materials, passive materials or modifiers, have contributed to the enhancement of catalytic activity, selectivity, and stability, effectively addressing the challenges linked to CO2 transformation. Herein, this review focuses on ALD and MLD's role in fabricating materials for electro-, photo-, photoelectro-, and thermal catalytic CO2 reduction, CO2 capture and separation, and electrochemical CO2 sensing. Significant emphasis is dedicated to the ALD and MLD designed materials, their crucial role in enhancing performance, and exploring the relationship between their structures and catalytic activities for CO2 transformation. Finally, this comprehensive review presents the summary, challenges and prospects for ALD and MLD-designed materials for CO2 transformation.
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Affiliation(s)
- Joshua O Olowoyo
- Department of Chemical and Biochemical Engineering, Thompson Engineering Building, Western University, London, ON N6A 5B9, Canada.
| | - Vahid Shahed Gharahshiran
- Department of Chemical and Biochemical Engineering, Thompson Engineering Building, Western University, London, ON N6A 5B9, Canada.
| | - Yimin Zeng
- Natural Resources Canada - CanmetMaterials, Hamilton, Canada
| | - Yang Zhao
- Department of Mechanical and Materials Engineering, Western University, London, ON N6A 5B9, Canada.
| | - Ying Zheng
- Department of Chemical and Biochemical Engineering, Thompson Engineering Building, Western University, London, ON N6A 5B9, Canada.
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3
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Wang T, Xin Y, Chen B, Zhang B, Luan S, Dong M, Wu Y, Cheng X, Liu Y, Liu H, Han B. Selective hydrodeoxygenation of α, β-unsaturated carbonyl compounds to alkenes. Nat Commun 2024; 15:2166. [PMID: 38461211 PMCID: PMC10925037 DOI: 10.1038/s41467-024-46383-9] [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: 07/26/2023] [Accepted: 02/23/2024] [Indexed: 03/11/2024] Open
Abstract
Achieving selective hydrodeoxygenation of α, β-unsaturated carbonyl groups to alkenes poses a substantial challenge due to the presence of multiple functional groups. In this study, we develop a ZnNC-X catalyst (X represents the calcination temperature) that incorporates both Lewis acidic-basic sites and Zn-Nx sites to address this challenge. Among the catalyst variants, ZnNC-900 catalyst exhibits impressive selectivity for alkenes in the hydrodeoxygenation of α, β-unsaturated carbonyl compounds, achieving up to 94.8% selectivity. Through comprehensive mechanism investigations and catalyst characterization, we identify the Lewis acidic-basic sites as responsible for the selective hydrogenation of C=O bonds, while the Zn-Nx sites facilitate the subsequent selective hydrodeoxygenation step. Furthermore, ZnNC-900 catalyst displays broad applicability across a diverse range of unsaturated carbonyl compounds. These findings not only offer valuable insights into the design of effective catalysts for controlling alkene selectivity but also extend the scope of sustainable transformations in synthetic chemistry.
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Affiliation(s)
- Tianjiao Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yu Xin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Bin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Sen Luan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Minghua Dong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuxuan Wu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaomeng Cheng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ye Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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4
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Wang L, Wang H, Cheng R, Wang M, Cai X, Ren P, Xiao D, Wang N, Wen XD, Diao J, Wang X, Ma D, Liu H. High-Density Coordinatively Unsaturated Zn Catalyst for Efficient Alkane Dehydrogenation. J Am Chem Soc 2023; 145:20936-20942. [PMID: 37703050 DOI: 10.1021/jacs.3c06311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The exploration of non-noble metal catalysts for alkane dehydrogenation and their catalytic mechanisms is the priority in catalysis research. Here, we report a high-density coordinatively unsaturated Zn cation (Zncus) catalyst for the direct dehydrogenation (DDH) of ethylbenzene (EB) to styrene (ST). The catalyst demonstrated good catalytic performance (∼40% initial EB conversion rate and >98% ST selectivity) and excellent regeneration ability in the reaction, which is attributed to the high-density (HD) distribution and high-stability structure of Zncus active sites on the surface of zinc silicate (HD-Zncus@ZS). Density functional theory (DFT) calculations further illustrated the reaction pathway and intermediates, supporting that the Zncus sites can efficiently activate the C-H bond of ethyl on ethylbenzene. Developing the high-density Zncus catalyst and exploring the catalytic mechanism laid a good foundation for designing practical non-noble metal catalysts.
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Affiliation(s)
- Linlin Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
| | - Hui Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan030001, P. R. China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing 101400, P. R. China
| | - Renfei Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
| | - Maolin Wang
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Xiangbin Cai
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, 999077P. R. China
| | - Pengju Ren
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan030001, P. R. China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing 101400, P. R. China
| | - Dequan Xiao
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical Engineering, University of New Haven, 300 Boston Post Road, West Haven, Connecticut 06516, United States
| | - Ning Wang
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, 999077P. R. China
| | - Xiao-Dong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan030001, P. R. China
| | - Jiangyong Diao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiaohui Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Hongyang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
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5
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Zhou H, Docherty SR, Phongprueksathat N, Chen Z, Bukhtiyarov AV, Prosvirin IP, Safonova OV, Urakawa A, Copéret C, Müller CR, Fedorov A. Combining Atomic Layer Deposition with Surface Organometallic Chemistry to Enhance Atomic-Scale Interactions and Improve the Activity and Selectivity of Cu-Zn/SiO 2 Catalysts for the Hydrogenation of CO 2 to Methanol. JACS AU 2023; 3:2536-2549. [PMID: 37772188 PMCID: PMC10523371 DOI: 10.1021/jacsau.3c00319] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 09/30/2023]
Abstract
The direct synthesis of methanol via the hydrogenation of CO2, if performed efficiently and selectively, is potentially a powerful technology for CO2 mitigation. Here, we develop an active and selective Cu-Zn/SiO2 catalyst for the hydrogenation of CO2 by introducing copper and zinc onto dehydroxylated silica via surface organometallic chemistry and atomic layer deposition, respectively. At 230 °C and 25 bar, the optimized catalyst shows an intrinsic methanol formation rate of 4.3 g h-1 gCu-1 and selectivity to methanol of 83%, with a space-time yield of 0.073 g h-1 gcat-1 at a contact time of 0.06 s g mL-1. X-ray absorption spectroscopy at the Cu and Zn K-edges and X-ray photoelectron spectroscopy studies reveal that the CuZn alloy displays reactive metal support interactions; that is, it is stable under H2 atmosphere and unstable under conditions of CO2 hydrogenation, indicating that the dealloyed structure contains the sites promoting methanol synthesis. While solid-state nuclear magnetic resonance studies identify methoxy species as the main stable surface adsorbate, transient operando diffuse reflectance infrared Fourier transform spectroscopy indicates that μ-HCOO*(ZnOx) species that form on the Cu-Zn/SiO2 catalyst are hydrogenated to methanol faster than the μ-HCOO*(Cu) species that are found in the Zn-free Cu/SiO2 catalyst, supporting the role of Zn in providing a higher activity in the Cu-Zn system.
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Affiliation(s)
- Hui Zhou
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
- Department
of Energy and Power Engineering, Tsinghua
University, 100084 Beijing, China
| | - Scott R. Docherty
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | - Nat Phongprueksathat
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The
Netherlands
| | - Zixuan Chen
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
| | - Andrey V. Bukhtiyarov
- Synchrotron
Radiation Facility SKIF, Boreskov Institute
of Catalysis SB RAS, 630559 Kol’tsovo, Russia
| | | | | | - Atsushi Urakawa
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The
Netherlands
| | - Christophe Copéret
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | - Christoph R. Müller
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
| | - Alexey Fedorov
- Department
of Mechanical and Process Engineering, ETH
Zürich, CH-8092 Zürich, Switzerland
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6
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Qi L, Das S, Zhang Y, Nozik D, Gates BC, Bell AT. Ethene Hydroformylation Catalyzed by Rhodium Dispersed with Zinc or Cobalt in Silanol Nests of Dealuminated Zeolite Beta. J Am Chem Soc 2023; 145:2911-2929. [PMID: 36715296 DOI: 10.1021/jacs.2c11075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Catalysts for hydroformylation of ethene were prepared by grafting Rh into nests of ≡SiOZn-OH or ≡SiOCo-OH species prepared in dealuminated BEA zeolite. X-ray absorption spectra and infrared spectra of adsorbed CO were used to characterize the dispersion of Rh. The Rh dispersion was found to increase markedly with increasing M/Rh (M = Zn or Co) ratio; further increases in Rh dispersion occurred upon use for ethene hydroformylation catalysis. The turnover frequency for ethene hydroformylation measured for a fixed set of reaction conditions increased with the fraction of atomically dispersed Rh. The ethene hydroformylation activity is 15.5-fold higher for M = Co than for M = Zn, whereas the propanal selectivity is slightly greater for the latter catalyst. The activity of the Co-containing catalyst exceeds that of all previously reported Rh-containing bimetallic catalysts. The rates of ethene hydroformylation and ethene hydrogenation exhibit positive reaction orders in ethene and hydrogen but negative orders in carbon monoxide. In situ IR spectroscopy and the kinetics of the catalytic reactions suggest that ethene hydroformylation is mainly catalyzed by atomically dispersed Rh that is influenced by Rh-M interactions, whereas ethene hydrogenation is mainly catalyzed by Rh nanoclusters. In situ IR spectroscopy also indicates that the ethene hydroformylation is rate limited by formation of propionyl groups and by their hydrogenation, a conclusion supported by the measured H/D kinetic isotope effect. This study presents a novel method for creating highly active Rh-containing bimetallic sites for ethene hydroformylation and provides new insights into the mechanism and kinetics of this process.
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Affiliation(s)
- Liang Qi
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States.,National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Sonali Das
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Yanfei Zhang
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States.,College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Danna Nozik
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Bruce C Gates
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Alexis T Bell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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7
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Active Zn Species Nest in Dealumination Zeolite Composite for Propane Dehydrogenation. Catal Letters 2022. [DOI: 10.1007/s10562-022-04244-4] [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]
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8
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Feng F, Zhang H, Chu S, Zhang Q, Wang C, Wang G, Wang F, Bing L, Han D. Recent progress on the traditional and emerging catalysts for propane dehydrogenation. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.001] [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]
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9
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Yu K, Srinivas S, Wang C, Chen W, Ma L, Ehrlich SN, Marinkovic N, Kumar P, Stach EA, Caratzoulas S, Zheng W, Vlachos DG. High-Temperature Pretreatment Effect on Co/SiO 2 Active Sites and Ethane Dehydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03180] [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)
- Kewei Yu
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Sanjana Srinivas
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Cong Wang
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Weiqi Chen
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Lu Ma
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Steven N. Ehrlich
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Nebojsa Marinkovic
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Pawan Kumar
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Eric A. Stach
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Stavros Caratzoulas
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Weiqing Zheng
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Dionisios G. Vlachos
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- RAPID Manufacturing Institute, Catalysis Center for Energy Innovation, Delaware Energy Institute, Center for Plastics Innovation, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
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10
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Shen X, Wang Z, Wang Q, Tumurbaatar C, Bold T, Liu W, Dai Y, Tang Y, Yang Y. Modified Ni-carbonate interfaces for enhanced CO2 methanation activity: Tuned reaction pathway and reconstructed surface carbonates. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Yuan Y, Lee JS, Lobo RF. Ga +-Chabazite Zeolite: A Highly Selective Catalyst for Nonoxidative Propane Dehydrogenation. J Am Chem Soc 2022; 144:15079-15092. [PMID: 35793461 DOI: 10.1021/jacs.2c03941] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Ga-chabazite zeolites (Ga-CHA) have been found to efficiently catalyze propane dehydrogenation with high propylene selectivity (96%). In situ Fourier transform infrared spectroscopy and pulse titrations are employed to determine that upon reduction, surface Ga2O3 is reduced and diffuses into the zeolite pores, displacing the Brønsted acid sites and forming extra-framework Ga+ sites. This isolated Ga+ site reacts reversibly with H2 to form GaHx (2034 cm-1) with an enthalpy of formation of ∼-51.2 kJ·mol-1, a result supported by density functional theory calculations. The initial C3H8 dehydrogenation rates decrease rapidly (40%) during the first 100 min and then decline slowly afterward, while the C3H6 selectivity is stable at ∼96%. The reduction in the reaction rate is correlated with the formation of polycyclic aromatics inside the zeolite (using UV-vis spectroscopy) indicating that the accumulation of polycyclic aromatics is the main cause of the deactivation. The carbon species formed can be easily oxidized at 600 °C with complete recovery of the PDH catalytic properties. The correlations between GaHx vs Ga/Al ratio and PDH rates vs Ga/Al ratio show that extra-framework Ga+ is the active center catalyzing propane dehydrogenation. The higher reaction rate on Ga+ than In+ in CHA zeolites, by a factor of 43, is the result of differences in the stabilization of the transition state due to the higher stability of Ga3+ vs In3+. The uniformity of the Ga+ sites in this material makes it an excellent model for the molecular understanding of metal cation-exchanged hydrocarbon interactions in zeolites.
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Affiliation(s)
- Yong Yuan
- Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Jason S Lee
- Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Raul F Lobo
- Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
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12
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Song S, Yang K, Zhang P, Wu Z, Li J, Su H, Dai S, Xu C, Li Z, Liu J, Song W. Silicalite-1 Stabilizes Zn-Hydride Species for Efficient Propane Dehydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shaojia Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Kun Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Peng Zhang
- Petrochemical Research Institute, PetroChina Company Limited, Beijing 102206, China
| | - Zhijie Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Jun Li
- Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Su
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Sheng Dai
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Zhenxing Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
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13
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Liu Y, Zhang G, Wang J, Zhu J, Zhang X, Miller JT, Song C, Guo X. Promoting propane dehydrogenation with CO2 over Ga2O3/SiO2 by eliminating Ga-hydrides. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63900-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Nozik D, Tinga FMP, Bell AT. Propane Dehydrogenation and Cracking over Zn/H-MFI Prepared by Solid-State Ion Exchange of ZnCl 2. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03641] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Danna Nozik
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Francesca Mikaela P. Tinga
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Alexis T. Bell
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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15
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C3N Non-metallic Catalyst for Propane Dehydrogenation: A Density Functional Theory Study. Catal Letters 2021. [DOI: 10.1007/s10562-021-03564-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Zhao D, Tian X, Doronkin DE, Han S, Kondratenko VA, Grunwaldt JD, Perechodjuk A, Vuong TH, Rabeah J, Eckelt R, Rodemerck U, Linke D, Jiang G, Jiao H, Kondratenko EV. In situ formation of ZnO x species for efficient propane dehydrogenation. Nature 2021; 599:234-238. [PMID: 34759363 PMCID: PMC8580824 DOI: 10.1038/s41586-021-03923-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/18/2021] [Indexed: 11/09/2022]
Abstract
Propane dehydrogenation (PDH) to propene is an important alternative to oil-based cracking processes, to produce this industrially important platform chemical1,2. The commercial PDH technologies utilizing Cr-containing (refs. 3,4) or Pt-containing (refs. 5-8) catalysts suffer from the toxicity of Cr(VI) compounds or the need to use ecologically harmful chlorine for catalyst regeneration9. Here, we introduce a method for preparation of environmentally compatible supported catalysts based on commercial ZnO. This metal oxide and a support (zeolite or common metal oxide) are used as a physical mixture or in the form of two layers with ZnO as the upstream layer. Supported ZnOx species are in situ formed through a reaction of support OH groups with Zn atoms generated from ZnO upon reductive treatment above 550 °C. Using different complementary characterization methods, we identify the decisive role of defective OH groups for the formation of active ZnOx species. For benchmarking purposes, the developed ZnO-silicalite-1 and an analogue of commercial K-CrOx/Al2O3 were tested in the same setup under industrially relevant conditions at close propane conversion over about 400 h on propane stream. The developed catalyst reveals about three times higher propene productivity at similar propene selectivity.
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Affiliation(s)
- Dan Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P. R. China
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
| | - Xinxin Tian
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan, P. R. China
| | - Dmitry E Doronkin
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Shanlei Han
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P. R. China
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
| | | | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | | | | | - Jabor Rabeah
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
| | | | - Uwe Rodemerck
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
| | - David Linke
- Leibniz-Institut für Katalyse e.V., Rostock, Germany
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P. R. China.
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V., Rostock, Germany.
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17
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Fonseca J, Lu J. Single-Atom Catalysts Designed and Prepared by the Atomic Layer Deposition Technique. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01200] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Javier Fonseca
- Nanomaterial Laboratory for Catalysis and Advanced Separations, Department of Chemical Engineering, Northeastern University, 313 Snell Engineering Center, 360 Huntington Avenue, Boston, Massachusetts 02115-5000, United States
| | - Junling Lu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
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18
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Martín N, Cirujano FG. Supported Single Atom Catalysts for C−H Activation: Selective C−H Oxidations, Dehydrogenations and Oxidative C−H/C−H Couplings. ChemCatChem 2021. [DOI: 10.1002/cctc.202100345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Nuria Martín
- Instituto de Ciencia Molecular (ICMol) Universitat de Valencia Catedrático José Beltrán Martínez n° 2 46980 Paterna Valencia Spain
| | - Francisco G. Cirujano
- Instituto de Ciencia Molecular (ICMol) Universitat de Valencia Catedrático José Beltrán Martínez n° 2 46980 Paterna Valencia Spain
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19
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Abstract
In the past several decades, light alkane dehydrogenation to mono-olefins, especially propane dehydrogenation to propylene has gained widespread attention and much development in the field of research and commercial application. Under suitable conditions, the supported Pt-Sn and CrOx catalysts widely used in industry exhibit satisfactory dehydrogenation activity and selectivity. However, the high cost of Pt and the potential environmental problems of CrOx have driven researchers to improve the coking and sintering resistance of Pt catalysts, and to find new non-noble metal and environment-friendly catalysts. As for the development of the reactor, it should be noted that low operation pressure is beneficial for improving the single-pass conversion, decreasing the amount of unconverted alkane recycled back to the reactor, and reducing the energy consumption of the whole process. Therefore, the research direction of reactor improvement is towards reducing the pressure drop. This review is aimed at introducing the characteristics of the dehydrogenation reaction, the progress made in the development of catalysts and reactors, and a new understanding of reaction mechanism as well as its guiding role in the development of catalyst and reactor.
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Affiliation(s)
- Chunyi Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580, P. R. China.
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20
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Wang Y, Suo Y, Lv X, Wang Z, Yuan ZY. Enhanced performances of bimetallic Ga-Pt nanoclusters confined within silicalite-1 zeolite in propane dehydrogenation. J Colloid Interface Sci 2021; 593:304-314. [PMID: 33744539 DOI: 10.1016/j.jcis.2021.02.129] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 10/22/2022]
Abstract
Ga-based catalysts are promising for use in propane dehydrogenation (PDH) because of the relatively superior activity, but the conventional Ga-based catalysts usually suffer from serious deactivation and unsatisfactory propene selectivity. Here, ultrafine bimetallic Ga-Pt nanocatalysts encapsulated into silicalite-1 (S-1) zeolites (GaPt@S-1) were synthesized by a facile ligand-protected direct H2-reduction method. It is indicated that this catalyst is composed of confined ultra-small GaPt alloy nanoclusters and a part of isolated tetrahedral coordination of Ga species. The confined GaPt alloy nanoclusters are the active sites for PDH reaction, and their high electron density could boost the desorption of products, resulting in a high propene selectivity of 92.1% and propene formation rate of 20.5 mol g-1Pt h-1 at 600 °C. Moreover, no obvious deactivation was observed over GaPt@S-1 catalyst even after 24 h on stream at 600 °C, affording an extremely low deactivation constant of 0.0068 h-1, which is much lower than that of the conventional Ga-based catalysts. Notably, the restriction of the zeolite can enhance the regeneration stability of the catalyst, and the catalytic activity kept unchanged after four consecutive cycles.
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Affiliation(s)
- Yansu Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yujun Suo
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xianwei Lv
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Zheng Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, Ningxia, China
| | - Zhong-Yong Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
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21
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Operando high-pressure investigation of size-controlled CuZn catalysts for the methanol synthesis reaction. Nat Commun 2021; 12:1435. [PMID: 33664267 PMCID: PMC7933282 DOI: 10.1038/s41467-021-21604-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/01/2021] [Indexed: 11/08/2022] Open
Abstract
Although Cu/ZnO-based catalysts have been long used for the hydrogenation of CO2 to methanol, open questions still remain regarding the role and the dynamic nature of the active sites formed at the metal-oxide interface. Here, we apply high-pressure operando spectroscopy methods to well-defined Cu and Cu0.7Zn0.3 nanoparticles supported on ZnO/Al2O3, γ-Al2O3 and SiO2 to correlate their structure, composition and catalytic performance. We obtain similar activity and methanol selectivity for Cu/ZnO/Al2O3 and CuZn/SiO2, but the methanol yield decreases with time on stream for the latter sample. Operando X-ray absorption spectroscopy data reveal the formation of reduced Zn species coexisting with ZnO on CuZn/SiO2. Near-ambient pressure X-ray photoelectron spectroscopy shows Zn surface segregation and the formation of a ZnO-rich shell on CuZn/SiO2. In this work we demonstrate the beneficial effect of Zn, even in diluted form, and highlight the influence of the oxide support and the Cu-Zn interface in the reactivity.
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22
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23
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Chen S, Chang X, Sun G, Zhang T, Xu Y, Wang Y, Pei C, Gong J. Propane dehydrogenation: catalyst development, new chemistry, and emerging technologies. Chem Soc Rev 2021; 50:3315-3354. [DOI: 10.1039/d0cs00814a] [Citation(s) in RCA: 132] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review describes recent advances in the propane dehydrogenation process in terms of emerging technologies, catalyst development and new chemistry.
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Affiliation(s)
- Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xin Chang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Guodong Sun
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Tingting Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yiyi Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yang Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300072
- China
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24
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Dai Y, Gao X, Wang Q, Wan X, Zhou C, Yang Y. Recent progress in heterogeneous metal and metal oxide catalysts for direct dehydrogenation of ethane and propane. Chem Soc Rev 2021; 50:5590-5630. [DOI: 10.1039/d0cs01260b] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Metal and metal oxide catalysts for non-oxidative ethane/propane dehydrogenation are outlined with respect to catalyst synthesis, structure–property relationship and catalytic mechanism.
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Affiliation(s)
- Yihu Dai
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xing Gao
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qiaojuan Wang
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xiaoyue Wan
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Chunmei Zhou
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yanhui Yang
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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25
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Ingale P, Knemeyer K, Preikschas P, Ye M, Geske M, Naumann d'Alnoncourt R, Thomas A, Rosowski F. Design of PtZn nanoalloy catalysts for propane dehydrogenation through interface tailoring via atomic layer deposition. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01528h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic approach for precise formation of PtZn bimetallic nano-alloys is reported, which are highly active and selective towards propane dehydrogenation.
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Affiliation(s)
- Piyush Ingale
- BasCat – UniCat BASF JointLab
- Technische Universität Berlin
- Berlin 10623
- Germany
| | - Kristian Knemeyer
- BasCat – UniCat BASF JointLab
- Technische Universität Berlin
- Berlin 10623
- Germany
| | - Phil Preikschas
- BasCat – UniCat BASF JointLab
- Technische Universität Berlin
- Berlin 10623
- Germany
| | - Mengyang Ye
- Functional Materials
- Department of Chemistry
- Technische Universität Berlin
- Berlin 10623
- Germany
| | - Michael Geske
- BasCat – UniCat BASF JointLab
- Technische Universität Berlin
- Berlin 10623
- Germany
| | | | - Arne Thomas
- Functional Materials
- Department of Chemistry
- Technische Universität Berlin
- Berlin 10623
- Germany
| | - Frank Rosowski
- BasCat – UniCat BASF JointLab
- Technische Universität Berlin
- Berlin 10623
- Germany
- BASF SE
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26
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Otroshchenko T, Jiang G, Kondratenko VA, Rodemerck U, Kondratenko EV. Current status and perspectives in oxidative, non-oxidative and CO2-mediated dehydrogenation of propane and isobutane over metal oxide catalysts. Chem Soc Rev 2021; 50:473-527. [DOI: 10.1039/d0cs01140a] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conversion of propane or isobutane from natural/shale gas into propene or isobutene, which are indispensable for the synthesis of commodity chemicals, is an important environmentally friendly alternative to oil-based cracking processes.
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Affiliation(s)
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum, Beijing
- Beijing
- P. R. China
| | | | - Uwe Rodemerck
- Leibniz-Institut für Katalyse e.V
- D-18059 Rostock
- Germany
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27
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Xie Z, Yu T, Song W, Li J, Zhao Z, Liu B, Gao Z, Li D. Highly Active Nanosized Anatase TiO2–x Oxide Catalysts In Situ Formed through Reduction and Ostwald Ripening Processes for Propane Dehydrogenation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02825] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Zean Xie
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Tingting Yu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Jianmei Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Zhen Zhao
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Baijun Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Zhenfei Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Chang Ping, Beijing 102249, China
| | - Dong Li
- Institute of Catalysis for Energy and Environment, Shenyang Normal University, Shenyang 110034, China
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28
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Perechodjuk A, Kondratenko VA, Lund H, Rockstroh N, Kondratenko EV. Oxide of lanthanoids can catalyse non-oxidative propane dehydrogenation: mechanistic concept and application potential of Eu 2O 3- or Gd 2O 3-based catalysts. Chem Commun (Camb) 2020; 56:13021-13024. [PMID: 33000811 DOI: 10.1039/d0cc05496h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper demonstrates the potential of Eu2O3 and Gd2O3 as catalysts for non-oxidative propane dehydrogenation to propene. They reveal a higher activity than the state-of-the-art bare ZrO2-based catalysts due to the higher intrinsic activity of Gdcus or Eucus in comparison with that of Zrcus (cus = coordinatively unsaturated).
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Affiliation(s)
- Anna Perechodjuk
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
| | - Vita A Kondratenko
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
| | - Henrik Lund
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
| | - Nils Rockstroh
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
| | - Evgenii V Kondratenko
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
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29
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Ingale P, Knemeyer K, Piernavieja Hermida M, Naumann d’Alnoncourt R, Thomas A, Rosowski F. Atomic Layer Deposition of ZnO on Mesoporous Silica: Insights into Growth Behavior of ZnO via In-Situ Thermogravimetric Analysis. NANOMATERIALS 2020; 10:nano10050981. [PMID: 32443853 PMCID: PMC7279530 DOI: 10.3390/nano10050981] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 11/16/2022]
Abstract
ZnO is a remarkable material with many applications in electronics and catalysis. Atomic layer deposition (ALD) of ZnO on flat substrates is an industrially applied and well-known process. Various studies describe the growth of ZnO layers on flat substrates. However, the growth characteristics and reaction mechanisms of atomic layer deposition of ZnO on mesoporous powders have not been well studied. This study investigates the ZnO ALD process based on diethylzinc (DEZn) and water with silica powder as substrate. In-situ thermogravimetric analysis gives direct access to the growth rates and reaction mechanisms of this process. Ex-situ analytics, e.g., N2 sorption analysis, XRD, XRF, HRTEM, and STEM-EDX mapping, confirm deposition of homogenous and thin films of ZnO on SiO2. In summary, this study offers new insights into the fundamentals of an ALD process on high surface area powders.
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Affiliation(s)
- Piyush Ingale
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany; (P.I.); (K.K.); (M.P.H.); (F.R.)
| | - Kristian Knemeyer
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany; (P.I.); (K.K.); (M.P.H.); (F.R.)
| | - Mar Piernavieja Hermida
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany; (P.I.); (K.K.); (M.P.H.); (F.R.)
| | - Raoul Naumann d’Alnoncourt
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany; (P.I.); (K.K.); (M.P.H.); (F.R.)
- Correspondence:
| | - Arne Thomas
- Institut für Chemie, Technische Universität Berlin, 10623 Berlin, Germany;
| | - Frank Rosowski
- BasCat—UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany; (P.I.); (K.K.); (M.P.H.); (F.R.)
- Process Research and Chemical Engineering, BASF SE, 67056 Ludwigshafen, Germany
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30
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Atomic Layer Deposition for Preparing Isolated Co Sites on SiO 2 for Ethane Dehydrogenation Catalysis. NANOMATERIALS 2020; 10:nano10020244. [PMID: 32019069 PMCID: PMC7075116 DOI: 10.3390/nano10020244] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 11/16/2022]
Abstract
Unlike Co clusters, isolated Co atoms have been shown to be selective for catalytic dehydrogenation of ethane to ethylene; however, preparation of isolated Co sites requires special preparation procedures. Here, we demonstrate that Atomic Layer Deposition (ALD) of tris(2,2,6,6-tetramethyl-3,5-heptanedionato)cobalt(III) (Co(TMHD)3) on silica and other supports is effective in producing these isolated species. Silica-supported catalysts prepared with one ALD cycle showed ethylene selectivities greater than 96% at 923 K and were stable when CO2 was co-fed with the ethane. Co catalysts prepared by impregnation formed clusters that were significantly less active, selective, and stable. Rates and selectivities also decreased for catalysts with multiple ALD cycles. Isolated Co catalysts prepared on Al2O3 and MgAl2O4 showed reasonable selectivity for ethane dehydrogenation but were not as effective as their silica counterpart.
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31
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Kaphan DM, Ferrandon MS, Langeslay RR, Celik G, Wegener EC, Liu C, Niklas J, Poluektov OG, Delferro M. Mechanistic Aspects of a Surface Organovanadium(III) Catalyst for Hydrocarbon Hydrogenation and Dehydrogenation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02800] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- David M. Kaphan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Magali S. Ferrandon
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Ryan R. Langeslay
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Gokhan Celik
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Evan C. Wegener
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Cong Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Jens Niklas
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Oleg G. Poluektov
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
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ZnO supported on high-silica HZSM-5 as efficient catalysts for direct dehydrogenation of propane to propylene. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110508] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Hu ZP, Yang D, Wang Z, Yuan ZY. State-of-the-art catalysts for direct dehydrogenation of propane to propylene. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63360-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Xu Z, Xu R, Yue Y, Yuan P, Bao X, Abou-Hamad E, Basset JM, Zhu H. Bimetallic Pt-Sn nanocluster from the hydrogenolysis of a well-defined surface compound consisting of [( AlO )Pt(COD)Me] and [( AlO )SnPh3] fragments for propane dehydrogenation. J Catal 2019. [DOI: 10.1016/j.jcat.2019.04.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Choojun K, Worathanaseth A, Kuhatasanadeekul S, Kurato T, Ketaniruj S, Phichitsurathaworn P, Promchana P, Prakobtham K, Numwong N, Poo-arporn Y, Sooknoi T. Effect of cobalt complex precursors on reactivity of cationic cobalt catalysts: Cyclohexane dehydrogenation. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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36
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Zhao D, Li Y, Han S, Zhang Y, Jiang G, Wang Y, Guo K, Zhao Z, Xu C, Li R, Yu C, Zhang J, Ge B, Kondratenko EV. ZnO Nanoparticles Encapsulated in Nitrogen-Doped Carbon Material and Silicalite-1 Composites for Efficient Propane Dehydrogenation. iScience 2019; 13:269-276. [PMID: 30870784 PMCID: PMC6417264 DOI: 10.1016/j.isci.2019.02.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/15/2018] [Accepted: 12/06/2018] [Indexed: 02/08/2023] Open
Abstract
Non-oxidative propane dehydrogenation (PDH) is an attractive reaction from both an industrial and a scientific viewpoint because it allows direct large-scale production of propene and fundamental analysis of C-H activation respectively. The main challenges are related to achieving high activity, selectivity, and on-stream stability of environment-friendly and cost-efficient catalysts without non-noble metals. Here, we describe an approach for the preparation of supported ultrasmall ZnO nanoparticles (2–4 nm, ZnO NPs) for high-temperature applications. The approach consists of encapsulation of NPs into a nitrogen-doped carbon (NC) layer in situ grown from zeolitic imidazolate framework-8 on a Silicalite-1 support. The NC layer was established to control the size of ZnO NPs and to hinder their loss to a large extent at high temperatures. The designed catalysts exhibited high activity, selectivity, and on-stream stability in PDH. Propene selectivity of about 90% at 44.4% propane conversion was achieved at 600°C after nearly 6 h on stream. Supported catalysts with stable ultrasmall ZnO nanoparticles were prepared The N-doped carbon layer helps to protect ZnO NPs from sintering and volatilization The catalysts exhibited excellent activity and stability in propane dehydrogenation
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Affiliation(s)
- Dan Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Yuming Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Shanlei Han
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Yaoyuan Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China.
| | - Yajun Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Ke Guo
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Ranjia Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Changchun Yu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Binghui Ge
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China.
| | - Evgenii V Kondratenko
- Leibniz-Institut für Katalyse. V. an der Universität Rostock, Albert-Einstein-Strasse 29A, 18059 Rostock, Germany.
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Zhang Y, Zhao Y, Otroshchenko T, Han S, Lund H, Rodemerck U, Linke D, Jiao H, Jiang G, Kondratenko EV. The effect of phase composition and crystallite size on activity and selectivity of ZrO2 in non-oxidative propane dehydrogenation. J Catal 2019. [DOI: 10.1016/j.jcat.2019.02.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Plascencia C, Curtiss LA, Liu C. Hydrogen Activation by Silica-Supported Metal Ion Catalysts: Catalytic Properties of Metals and Performance of DFT Functionals. J Phys Chem A 2019; 123:171-186. [PMID: 30516380 DOI: 10.1021/acs.jpca.8b08340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single-site heterogeneous catalysts (SSHC) have received increasing attention due to their well-defined active sites and potentially high specific activity. Detailed computational studies were carried out on a set of potential SSHC's, i.e., silica-supported metal ions, to investigate the reactivity of these catalysts with H2 as well as to evaluate the performance of density functional theory (DFT) methods in conjunction with triple-ζ quality basis sets (i.e., cc-pVTZ) on reaction energetics. The ions considered include 4d and 5d metals as well as several post-transition metal ions. A representative cluster model of silica is used to calculate reaction free energies of the metal hydride formation that results from the heterolytic cleavage of H2 on the M-O bond. The hydride formation free energy is previously shown to be strongly correlated with the catalytic activity of such catalysts for alkene hydrogenation. ONIOM calculations (CCSD(T)//MP2) are used to assess the accuracy and reliability of the MP2 results and it is found that MP2 is a suitable level of theory for gauging the performance of DFT functionals. The performance of various DFT functionals is assessed relative to MP2 results and it is found that the wB97xd and PBE0 functionals have the lowest standard deviation (STD) value while the MN12SX and PBE functionals have the lowest mean absolute deviation (MAD) values. The B3LYP functional is shown to have similar MAD and STD values as the top performing functionals. Potential active SSHC's for exergonic hydrogen activation predicted in this study include mostly late and post transition metal ions, i.e., Au3+, Pd2+, Pt4+, Pd4+, Ir4+, Hg2+, Rh3+, Pb4+, Tl3+, In3+, Ir3+, Os4+, Cd2+, Ru2+, and Ga3+. This study provides important guidance to future computational studies of such catalyst systems.
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Affiliation(s)
- Cesar Plascencia
- Materials Science Division , Argonne National Laboratory , 9700 South Cass Avenue , Lemont Illinois 60439 United States.,Department of Chemistry , Michigan State University , 220 Trowbridge Road , East Lansing , Michigan 48824 United States
| | - Larry A Curtiss
- Materials Science Division , Argonne National Laboratory , 9700 South Cass Avenue , Lemont Illinois 60439 United States
| | - Cong Liu
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 South Cass Avenue , Lemont Illinois 60439 United States
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39
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Chen C, Hu Z, Ren J, Zhang S, Wang Z, Yuan ZY. ZnO Nanoclusters Supported on Dealuminated Zeolite β as a Novel Catalyst for Direct Dehydrogenation of Propane to Propylene. ChemCatChem 2019. [DOI: 10.1002/cctc.201801708] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chong Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry School of Materials Science and Engineering; Nankai University; Tianjin 300071 P.R. China
| | - Zhongpan Hu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry School of Materials Science and Engineering; Nankai University; Tianjin 300071 P.R. China
| | - Jintao Ren
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry School of Materials Science and Engineering; Nankai University; Tianjin 300071 P.R. China
| | - Shoumin Zhang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry School of Materials Science and Engineering; Nankai University; Tianjin 300071 P.R. China
| | - Zheng Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering; Ningxia University; Yinchuan 750021 P.R. China
| | - Zhong-Yong Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry School of Materials Science and Engineering; Nankai University; Tianjin 300071 P.R. China
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40
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Singh JA, Hoffman AS, Schumann J, Boubnov A, Asundi AS, Nathan SS, Nørskov J, Bare SR, Bent SF. Role of Co2
C in ZnO-promoted Co Catalysts for Alcohol Synthesis from Syngas. ChemCatChem 2018. [DOI: 10.1002/cctc.201801724] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Joseph A. Singh
- Department of Chemistry; Stanford University; Stanford CA-94305 USA
| | - Adam S. Hoffman
- SSRL, SLAC National Accelerator Laboratory; Menlo Park CA-94025 USA
| | - Julia Schumann
- Department of Chemical Engineering; Stanford University; Stanford CA-94305 USA
| | - Alexey Boubnov
- SSRL, SLAC National Accelerator Laboratory; Menlo Park CA-94025 USA
| | - Arun S. Asundi
- Department of Chemical Engineering; Stanford University; Stanford CA-94305 USA
| | - Sindhu S. Nathan
- Department of Chemical Engineering; Stanford University; Stanford CA-94305 USA
| | - Jens Nørskov
- Department of Chemical Engineering; Stanford University; Stanford CA-94305 USA
- Department of Physics; Technical University of Denmark Kongens; Lyngby 2800 Denmark
| | - Simon R. Bare
- SSRL, SLAC National Accelerator Laboratory; Menlo Park CA-94025 USA
| | - Stacey F. Bent
- Department of Chemical Engineering; Stanford University; Stanford CA-94305 USA
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41
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Zhao Y, Sohn H, Hu B, Niklas J, Poluektov OG, Tian J, Delferro M, Hock AS. Zirconium Modification Promotes Catalytic Activity of a Single-Site Cobalt Heterogeneous Catalyst for Propane Dehydrogenation. ACS OMEGA 2018; 3:11117-11127. [PMID: 31459220 PMCID: PMC6645419 DOI: 10.1021/acsomega.8b00862] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 08/30/2018] [Indexed: 06/10/2023]
Abstract
The effect of Zr modification on the catalytic activity of Co/SiO2 was investigated for nonoxidative propane dehydrogenation. Isolated Zr on SiO2 surface sites were prepared by organometallic synthesis using Zr(O t Bu)4 as a precursor. The resulting Zr/SiO2 support was functionalized with Co2+ ions via strong electrostatic adsorption. Spectroscopic (diffuse reflectance infrared Fourier transform spectroscopy, UV-vis, electron paramagnetic resonance) and microscopic characterization (transmission electron microscopy, scanning transition electron microscopy) results are consistent with single-site cobalt that preferentially associates with the mono-dispersed Zr at a variety of loadings and Co/Zr ratios. The oxidation state of Co in the as-prepared Co/SiO2 and Co-Zr/SiO2 was both +2 with tetrahedral and octahedral geometries, respectively. In situ X-ray absorption near edge structure and extended X-ray absorption fine structure results confirmed that the oxidation state of Co remained as +2 under reaction condition for both Co/SiO2 and Co-Zr/SiO2 samples and both catalysts have tetrahedral Co2+ as the active catalyst. Despite similar Co coordination environments, the catalytic activity and selectivity was significantly improved by the Zr modification of the silica support versus Co/SiO2. This was attributed to the change in oxygen donor ability and Co-O bond strength of the ≡SiO-Zr-O sites of Co-Zr/SiO2 compared with the ≡SiO- ligands in Co/SiO2. These results show that tuning of the support SiO2 oxygen donation ability by use of an anchoring site (e.g., ≡SiO-Zr-O-) can be used to alter both rate and selectivity of propane dehydrogenation with single-site heterogeneous catalysts. These results also show some preference for Co2+ active sites to associate with ≡SiO-Zr-O- sites over ≡SiO-.
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Affiliation(s)
- Yiqing Zhao
- Department
of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Hyuntae Sohn
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Bo Hu
- Department
of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jens Niklas
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Oleg G. Poluektov
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jun Tian
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Adam S. Hock
- Department
of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
- Chemical Sciences and Engineering Division and Center for Nanoscale
Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
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42
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Camacho-Bunquin J, Ferrandon MS, Sohn H, Kropf AJ, Yang C, Wen J, Hackler RA, Liu C, Celik G, Marshall CL, Stair PC, Delferro M. Atomically Precise Strategy to a PtZn Alloy Nanocluster Catalyst for the Deep Dehydrogenation of n-Butane to 1,3-Butadiene. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02794] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeffrey Camacho-Bunquin
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Magali S. Ferrandon
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Hyuntae Sohn
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - A. Jeremy Kropf
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Ce Yang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Jianguo Wen
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Ryan A. Hackler
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Cong Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Gokhan Celik
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Christopher L. Marshall
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Peter C. Stair
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
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43
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Liu C, Camacho-Bunquin J, Ferrandon M, Savara A, Sohn H, Yang D, Kaphan DM, Langeslay RR, Ignacio-de Leon PA, Liu S, Das U, Yang B, Hock AS, Stair PC, Curtiss LA, Delferro M. Development of activity–descriptor relationships for supported metal ion hydrogenation catalysts on silica. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Copéret C, Allouche F, Chan KW, Conley MP, Delley MF, Fedorov A, Moroz IB, Mougel V, Pucino M, Searles K, Yamamoto K, Zhizhko PA. Bridging the Gap between Industrial and Well‐Defined Supported Catalysts. Angew Chem Int Ed Engl 2018; 57:6398-6440. [DOI: 10.1002/anie.201702387] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Florian Allouche
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Ka Wing Chan
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Matthew P. Conley
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
- Current address: Department of ChemistryUniversity of California, Riverside 501 Big Springs Road Riverside CA 92521 USA
| | - Murielle F. Delley
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Alexey Fedorov
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Ilia B. Moroz
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Victor Mougel
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
- Current address: Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de FranceUniversité Pierre et Marie Curie 11 Place Marcelin Berthelot 75005 Paris France
| | - Margherita Pucino
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Keith Searles
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Keishi Yamamoto
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Pavel A. Zhizhko
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
- A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of Sciences Vavilov street 28 119991 Moscow Russia
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Phadke NM, Van der Mynsbrugge J, Mansoor E, Getsoian AB, Head-Gordon M, Bell AT. Characterization of Isolated Ga3+ Cations in Ga/H-MFI Prepared by Vapor-Phase Exchange of H-MFI Zeolite with GaCl3. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01254] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Neelay M. Phadke
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Jeroen Van der Mynsbrugge
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Erum Mansoor
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Andrew Bean Getsoian
- Chemical Engineering Department, Ford Motor Company, Dearborn, Michigan 48121, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alexis T. Bell
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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46
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Cook AK, Copéret C. Alkyne Hydroamination Catalyzed by Silica-Supported Isolated Zn(II) Sites. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00202] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda K. Cook
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
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47
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Copéret C, Allouche F, Chan KW, Conley MP, Delley MF, Fedorov A, Moroz IB, Mougel V, Pucino M, Searles K, Yamamoto K, Zhizhko PA. Eine Brücke zwischen industriellen und wohldefinierten Trägerkatalysatoren. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201702387] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Christophe Copéret
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Florian Allouche
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Ka Wing Chan
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Matthew P. Conley
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
- Department of ChemistryUniversity of California, Riverside 501 Big Springs Road Riverside CA 92521 USA
| | - Murielle F. Delley
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Alexey Fedorov
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Ilia B. Moroz
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Victor Mougel
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de FranceUniversité Pierre et Marie Curie 11 Place Marcelin Berthelot 75005 Paris Frankreich
| | - Margherita Pucino
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Keith Searles
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Keishi Yamamoto
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
| | - Pavel A. Zhizhko
- Departement Chemie und Angewandte Biowissenschaften, ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Schweiz
- A. N. Nesmeyanow-Institut für Elementorganische VerbindungenRussische Akademie der Wissenschaften Vavilov str. 28 119991 Moskau Russland
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48
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Camacho-Bunquin J, Ferrandon M, Sohn H, Yang D, Liu C, Ignacio-de Leon PA, Perras FA, Pruski M, Stair PC, Delferro M. Chemoselective Hydrogenation with Supported Organoplatinum(IV) Catalyst on Zn(II)-Modified Silica. J Am Chem Soc 2018; 140:3940-3951. [PMID: 29485277 DOI: 10.1021/jacs.7b11981] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Well-defined organoplatinum(IV) sites were grafted on a Zn(II)-modified SiO2 support via surface organometallic chemistry in toluene at room temperature. Solid-state spectroscopies including XAS, DRIFTS, DRUV-vis, and solid-state (SS) NMR enhanced by dynamic nuclear polarization (DNP), as well as TPR-H2 and TEM techniques revealed highly dispersed (methylcyclopentadienyl)methylplatinum(IV) sites on the surface ((MeCp)PtMe/Zn/SiO2, 1). In addition, computational modeling suggests that the surface reaction of (MeCp)PtMe3 with Zn(II)-modified SiO2 support is thermodynamically favorable (Δ G = -12.4 kcal/mol), likely due to the increased acidity of the hydroxyl group, as indicated by NH3-TPD and DNP-enhanced 17O{1H} SSNMR. In situ DRIFTS and XAS hydrogenation experiments reveal the probable formation of a surface Pt(IV)-H upon hydrogenolysis of Pt-Me groups. The heterogenized organoplatinum(IV)-hydride sites catalyze the selective partial hydrogenation of 1,3-butadiene to butenes (up to 95%) and the reduction of nitrobenzene derivatives to anilines (up to 99%) with excellent tolerance of reduction-sensitive functional groups (olefin, carbonyl, nitrile, halogens) under mild reaction conditions.
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Affiliation(s)
- Jeffrey Camacho-Bunquin
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Magali Ferrandon
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Hyuntae Sohn
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Dali Yang
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Cong Liu
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Patricia Anne Ignacio-de Leon
- Energy Sciences Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
| | - Frédéric A Perras
- Ames Laboratory, U.S. Department of Energy , Ames , Iowa 50010 , United States
| | - Marek Pruski
- Ames Laboratory, U.S. Department of Energy , Ames , Iowa 50010 , United States.,Department of Chemistry , Iowa State University , 2416 Pammel Drive , Ames , Iowa 50011 , United States
| | - Peter C Stair
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States.,Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 S Cass Avenue , Lemont , Illinois 60439 , United States
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Zhang G, Yang C, Miller JT. Tetrahedral Nickel(II) Phosphosilicate Single‐Site Selective Propane Dehydrogenation Catalyst. ChemCatChem 2018. [DOI: 10.1002/cctc.201701815] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guanghui Zhang
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette IN 47907 USA
| | - Ce Yang
- Chemical Sciences and Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA
| | - Jeffrey T. Miller
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette IN 47907 USA
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50
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Dong T, Xiong W, Yu J, Pienkos PT. Co-production of fully renewable medium chain α-olefins and bio-oilviahydrothermal liquefaction of biomass containing polyhydroxyalkanoic acid. RSC Adv 2018; 8:34380-34387. [PMID: 35548653 PMCID: PMC9086982 DOI: 10.1039/c8ra07359g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 09/27/2018] [Indexed: 02/01/2023] Open
Abstract
Medium chain-length linear α-olefins (mcl-LAO) are versatile precursors to commodity products such as synthetic lubricants and biodegradable detergents, and have been traditionally produced from ethylene oligomerization and Fischer–Tropsch synthesis. Medium chain-length polyhydroxyalkanoic acid (mcl-PHA) can be produced by some microorganisms as an energy storage. In this study, Pseudomonas putida biomass that contained mcl-PHA was used in HTL at 300 °C for 30 min, and up to 65 mol% of mcl-PHA was converted into mcl-LAO. The yield and quality of the bio-oil co-produced in the HTL was remarkably improved with the biomass rich in mcl-PHA. Experiments with extracted mcl-PHA revealed the degradation mechanism of mcl-PHA in HTL. Overall, this work demonstrates a novel process to co-produce mcl-LAO and bio-oil from renewable biomass. Co-production of fully renewable medium chain α-olefins and bio-oil by hydrothermal liquefaction.![]()
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Affiliation(s)
- Tao Dong
- National Bioenergy Center
- National Renewable Energy Laboratory
- Golden
- USA
| | - Wei Xiong
- National Bioenergy Center
- National Renewable Energy Laboratory
- Golden
- USA
| | - Jianping Yu
- National Bioenergy Center
- National Renewable Energy Laboratory
- Golden
- USA
| | - Philip T. Pienkos
- National Bioenergy Center
- National Renewable Energy Laboratory
- Golden
- USA
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