1
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Jiang Y, Li S, Fan Y, Tang Z. Best Practices for Experiments and Reports in Photocatalytic Methane Conversion. Angew Chem Int Ed Engl 2024; 63:e202404658. [PMID: 38573117 DOI: 10.1002/anie.202404658] [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: 03/07/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
Efficiently converting methane into valuable chemicals via photocatalysis under mild condition represents a sustainable route to energy storage and value-added manufacture. Despite continued interest in this area, the achievements have been overshadowed by the absence of standardized protocols for conducting photocatalytic methane oxidation experiments as well as evaluating the corresponding performance. In this review, we present a structured solution aimed at addressing these challenges. Firstly, we introduce the norms underlying reactor design and outline various configurations in the gas-solid and gas-solid-liquid reaction systems. This discussion helps choosing the suitable reactors for methane conversion experiments. Subsequently, we offer a comprehensive step-by-step protocol applicable to diverse methane-conversion reactions. Emphasizing meticulous verification and accurate quantification of the products, this protocol highlights the significance of mitigating contamination sources and selecting appropriate detection methods. Lastly, we propose the standardized performance metrics crucial for evaluating photocatalytic methane conversion. By defining these metrics, the community could obtain the consensus of assessing the performance across different studies. Moving forward, the future of photocatalytic methane conversion necessitates further refinement of stringent experimental standards and evaluation criteria. Moreover, development of scalable reactor is essential to facilitate the transition from laboratory proof-of-concept to potentially industrial production.
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Affiliation(s)
- Yuheng Jiang
- Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- Center for Nanoscale Science and Technology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Siyang Li
- Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yingying Fan
- Guangdong Engineering Technology Research Center for Sensing Materials & Devices, Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P.R. China
| | - Zhiyong Tang
- Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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2
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Tan R, Wang X, Kong Y, Ji Q, Zhan Q, Xiong Q, Mu X, Li L. Liberating C-H Bond Activation: Achieving 56% Quantum Efficiency in Photocatalytic Cyclohexane Dehydrogenation. J Am Chem Soc 2024; 146:14149-14156. [PMID: 38717984 DOI: 10.1021/jacs.4c02792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
The technology of liquid organic hydrogen carriers presents great promise for large-scale hydrogen storage. Nevertheless, the activation of inert C(sp3)-H bonds in hydrocarbon carriers poses formidable challenges, resulting in a sluggish dehydrogenation process and necessitating high operating temperatures. Here, we break the shackles of C-H bond activation under visible light irradiation by fabricating subnanometer Pt clusters on defective Ce-Zr solid solutions. We achieved an unprecedented hydrogen production rate of 2601 mmol gcat.-1 h-1 (turnover frequency >50,000 molH2 molPt-1 h-1) from cyclohexane, surpassing the most advanced thermo- and photocatalysts. By optimizing the temperature-dominated hydrogen transfer process, achievable by harnessing hitherto wasted infrared light in sunlight, an astonishing 56% apparent quantum efficiency and a 5.2% solar-to-hydrogen efficiency are attained at 353 K. Our research stands as one of the most effective photocatalytic processes to date, holding profound practical significance in the utilization of solar energy and the exploitation of alkanes.
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Affiliation(s)
- Ruike Tan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xinhui Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yuxiang Kong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qing Ji
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qingyun Zhan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Qingchuan Xiong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xiaoyue Mu
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Lu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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3
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Lai Y, Wang R, Zeng Y, Li F, Chen X, Wang T, Fan H, Guo Q. Low-Temperature Oxidation of Methane on Rutile TiO 2(110): Identifying the Role of Surface Oxygen Species. JACS AU 2024; 4:1396-1404. [PMID: 38665644 PMCID: PMC11040672 DOI: 10.1021/jacsau.3c00771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/28/2024]
Abstract
Understanding the microkinetic mechanism underlying photocatalytic oxidative methane (CH4) conversion is of significant importance for the successful design of efficient catalysts. Herein, CH4 photooxidation has been systematically investigated on oxidized rutile(R)-TiO2(110) at 60 K. Under 355 nm irradiation, the C-H bond activation of CH4 is accomplished by the hole-trapped dangling OTi- center rather than the hole-trapped Ob- center via the Eley-Rideal reaction pathway, producing movable CH3• radicals. Subsequently, movable CH3• radicals encounter an O/OH species to form CH3O/CH3OH species, which could further dissociate into CH2O under irradiation. However, the majority of the CH3• radical intermediate is ejected into a vacuum, which may induce radical-mediated reactions under ambient conditions. The result not only advances our knowledge about inert C-H bond activation but also provides a deep insight into the mechanism of photocatalytic CH4 conversion, which will be helpful for the successful design of efficient catalysts.
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Affiliation(s)
- Yuemiao Lai
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
| | - Ruimin Wang
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
- School
of Pharmacy, North China University of Science
and Technology, Tangshan, Hebei 063210, PR China
| | - Yi Zeng
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
| | - Fangliang Li
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
| | - Xiao Chen
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
- Institute
of Advanced Science Facilities, Shenzhen, Guangdong 518107, PR China
| | - Tao Wang
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
| | - Hongjun Fan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Qing Guo
- Shenzhen
Key Laboratory of Energy Chemistry & Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
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4
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Zhu P, Bian W, Liu B, Deng H, Wang L, Huang X, Spence SL, Lin F, Duan C, Ding D, Dong P, Ding H. Direct conversion of methane to aromatics and hydrogen via a heterogeneous trimetallic synergistic catalyst. Nat Commun 2024; 15:3280. [PMID: 38627521 PMCID: PMC11021476 DOI: 10.1038/s41467-024-47595-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Non-oxidative methane dehydro-aromatization reaction can co-produce hydrogen and benzene effectively on a molybdenum-zeolite based thermochemical catalyst, which is a very promising approach for natural-gas upgrading. However, the low methane conversion and aromatics selectivity and weak durability restrain the realistic application for industry. Here, a mechanism for enhancing catalysis activity on methane activation and carbon-carbon bond coupling has been found to promote conversion and selectivity simultaneously by adding platinum-bismuth alloy cluster to form a trimetallic catalyst on zeolite (Pt-Bi/Mo/ZSM-5). This bimetallic alloy cluster has synergistic interaction with molybdenum: the formed CH3* from Mo2C on the external surface of zeolite can efficiently move on for C-C coupling on the surface of Pt-Bi particle to produce C2 compounds, which are the key intermediates of oligomerization. This pathway is parallel with the catalysis on Mo inside the cage. This catalyst demonstrated 18.7% methane conversion and 69.4% benzene selectivity at 710 °C. With 95% methane/5% nitrogen feedstock, it exhibited robust stability with slow deactivation rate of 9.3% after 2 h and instant recovery of 98.6% activity after regeneration in hydrogen. The enhanced catalytic activity is strongly associated with synergistic interaction with Mo and ligand effects of alloys by extensive mechanism studies and DFT calculation.
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Affiliation(s)
- Pengxi Zhu
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA
| | - Wenjuan Bian
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Bin Liu
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Hao Deng
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Lucun Wang
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Xiaozhou Huang
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA
| | | | - Feng Lin
- Department of Chemistry, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Chuancheng Duan
- Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA
| | - Dong Ding
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA.
| | - Pei Dong
- Department of Mechanical Engineering, George Mason University, Fairfax, VA, 22030, USA.
| | - Hanping Ding
- Energy and Environment Science & Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA.
- School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK, 73019, USA.
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5
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Chai Z. Heterogeneous Photocatalytic Strategies for C(sp 3 )-H Activation. Angew Chem Int Ed Engl 2024; 63:e202316444. [PMID: 38225893 DOI: 10.1002/anie.202316444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Activation of ubiquitous C(sp3 )-H bonds is extremely attractive but remains a great challenge. Heterogeneous photocatalysis offers a promising and sustainable approach for C(sp3 )-H activation and has been fast developing in the past decade. This Minireview focuses on mechanism and strategies for heterogeneous photocatalytic C(sp3 )-H activation. After introducing mechanistic insights, heterogeneous photocatalytic strategies for C(sp3 )-H activation including precise design of active sites, regulation of reactive radical species, improving charge separation and reactor innovations are discussed. In addition, recent advances in C(sp3 )-H activation of hydrocarbons, alcohols, ethers, amines and amides by heterogeneous photocatalysis are summarized. Lastly, challenges and opportunities are outlined to encourage more efforts for the development of this exciting and promising field.
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Affiliation(s)
- Zhigang Chai
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
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6
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Zhan Q, Kong Y, Wang X, Li L. Photocatalytic non-oxidative conversion of methane. Chem Commun (Camb) 2024; 60:2732-2743. [PMID: 38334463 DOI: 10.1039/d4cc00235k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The direct conversion of methane to hydrogen and high-value hydrocarbons under mild conditions is an ideal, carbon-neutral method for utilizing natural gas resources. Compared with traditional high-temperature thermal catalytic methods, using clean light energy to activate inert C-H bonds in methane can not only significantly reduce the reaction temperature and avoid catalyst deactivation, but also surpass the limitations of thermodynamic equilibrium and provide new reaction pathways. This paper provides a comprehensive review of developments in the field of photocatalytic non-oxidative conversion of methane (PNOCM), while also highlighting our contributions, particularly focusing on catalyst design, product selectivity, and the underlying photophysical and chemical mechanisms. The challenges and potential solutions are also evaluated. The goal of this feature article is to establish a foundational understanding and stimulate further research in this emerging area.
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Affiliation(s)
- Qingyun Zhan
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yuxiang Kong
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xinhui Wang
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Lu Li
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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7
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Tan L, Kong X, Liu M, Su H, Guo H, Li CJ. Palladium nanoparticles on gallium nitride as a Mott-Schottky catalyst for efficient and durable photoactivation of unactivated alkanes. Chem Sci 2023; 14:11761-11767. [PMID: 37920336 PMCID: PMC10619641 DOI: 10.1039/d3sc00688c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 09/14/2023] [Indexed: 11/04/2023] Open
Abstract
The direct functionalization of inert C-H bonds has long been a "holy grail" for the chemistry world. In this report, the direct C(sp3)-N bond formation of unactivated alkanes is reported with a GaN based Mott-Schottky catalyst under photocatalytic reaction conditions. Long term stability and reaction efficiency (up to 92%) were achieved with this photocatalyst. The deposition of a Pd co-catalyst on the surface of GaN significantly enhanced the reaction efficiency. Microscopic investigation suggested a remarkable interaction in the Pd/GaN Schottky junction, giving a significant Pd/GaN depletion layer. In addition, density functional theory (DFT) calculations were performed to show the distinct performance of Pd nanoparticles at the atomic level.
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Affiliation(s)
- Lida Tan
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Xianghua Kong
- College of Physics and Optoelectronic Engineering, Shenzhen University 3688 Nanhai Avenue Nanshan District Shenzhen 518061 Guangdong China
- Department of Physics, McGill University Rutherford Building 3600 University Montreal QC H3A 2T8 Canada
| | - Mingxin Liu
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University 222 Tianshui South Road Chengguan District Lanzhou 730000 Gansu China
| | - Hui Su
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Hong Guo
- Department of Physics, McGill University Rutherford Building 3600 University Montreal QC H3A 2T8 Canada
| | - Chao-Jun Li
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
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8
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Liu Z, Xu B, Jiang YJ, Zhou Y, Sun X, Wang Y, Zhu W. Photocatalytic Conversion of Methane: Current State of the Art, Challenges, and Future Perspectives. ACS ENVIRONMENTAL AU 2023; 3:252-276. [PMID: 37743954 PMCID: PMC10515711 DOI: 10.1021/acsenvironau.3c00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 09/26/2023]
Abstract
With 28-34 times the greenhouse effect of CO2 over a 100-year period, methane is regarded as the second largest contributor to global warming. Reducing methane emissions is a necessary measure to limit global warming to below 1.5 °C. Photocatalytic conversion of methane is a promising approach to alleviate the atmospheric methane concentrations due to its low energy consumption and environmentally friendly characteristics. Meanwhile, this conversion process can produce valuable chemicals and liquid fuels such as CH3OH, CH3CH2OH, C2H6, and C2H4, cutting down the dependence of chemical production on crude oil. However, the development of photocatalysts with a high methane conversion efficiency and product selectivity remains challenging. In this review, we overview recent advances in semiconductor-based photocatalysts for methane conversion and present catalyst design strategies, including morphology control, heteroatom doping, facet engineering, and cocatalysts modification. To gain a comprehensive understanding of photocatalytic methane conversion, the conversion pathways and mechanisms in these systems are analyzed in detail. Moreover, the role of electron scavengers in methane conversion performance is briefly discussed. Subsequently, we summarize the anthropogenic methane emission scenarios on earth and discuss the application potential of photocatalytic methane conversion. Finally, challenges and future directions for photocatalytic methane conversion are presented.
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Affiliation(s)
- Zhuo Liu
- State
Key Laboratory of Pollution Control and Resource Reuse, Frontiers
Science Center for Critical Earth Material Cycling, School of the
Environment and State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Biyang Xu
- State
Key Laboratory of Pollution Control and Resource Reuse, Frontiers
Science Center for Critical Earth Material Cycling, School of the
Environment and State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Yu-Jing Jiang
- State
Key Laboratory of Pollution Control and Resource Reuse, Frontiers
Science Center for Critical Earth Material Cycling, School of the
Environment and State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Yang Zhou
- Key
Laboratory for Organic Electronics & Information Displays (KLOEID),
Institute of Advanced Materials (IAM), Nanjing
University of Posts & Telecommunications (NJUPT), Nanjing 210046, China
| | - Xiaolian Sun
- State
Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality
Control and Pharmacovigilance, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
| | - Yuanyuan Wang
- State
Key Laboratory of Pollution Control and Resource Reuse, Frontiers
Science Center for Critical Earth Material Cycling, School of the
Environment and State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Wenlei Zhu
- State
Key Laboratory of Pollution Control and Resource Reuse, Frontiers
Science Center for Critical Earth Material Cycling, School of the
Environment and State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
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9
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Han JT, Su H, Tan L, Li CJ. A light-driven selective protocol for on-demand methanol and formic acid syntheses with a recyclable GaN catalyst. STAR Protoc 2023; 4:102530. [PMID: 37656629 PMCID: PMC10495642 DOI: 10.1016/j.xpro.2023.102530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/04/2023] [Accepted: 07/28/2023] [Indexed: 09/03/2023] Open
Abstract
Herein, we present a protocol for the on-demand preparation of methanol and formic acid via selective photo-oxidation of methane with H2O and O2 catalyzed by GaN. The detailed photosyntheses of methanol or formic acid from CH4/H2O or CH4/H2O/O2 are described, respectively. In addition, we provide experimental details for the accurate quantifications of the final gas/liquid products and photoexcited oxygenated radicals. Finally, we deliver the procedure for scaling up the transformation. For complete details on the use and execution of this protocol, please refer to Han et al. (2023).1.
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Affiliation(s)
- Jing-Tan Han
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montreal, QC H3A 0B8, Canada
| | - Hui Su
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montreal, QC H3A 0B8, Canada
| | - Lida Tan
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montreal, QC H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montreal, QC H3A 0B8, Canada.
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10
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Kang H, Tan L, Han JT, Huang CY, Su H, Kavun A, Li CJ. Acceptorless cross-dehydrogenative coupling for C(sp 3)-H heteroarylation mediated by a heterogeneous GaN/ketone photocatalyst/photosensitizer system. Commun Chem 2023; 6:181. [PMID: 37658203 PMCID: PMC10474291 DOI: 10.1038/s42004-023-00947-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/30/2023] [Indexed: 09/03/2023] Open
Abstract
Alkanes are naturally abundant chemical building blocks that contain plentiful C(sp3)-H bonds. While inert, the activation of C(sp3)-H via hydrogen atom abstraction (HAT) stages an appealing approach to generate alkyl radicals. However, prevailing shortcomings include the excessive use of oxidants and alkanes that impede scope. We herein show the use of gallium nitride (GaN) as a non-toxic, recyclable, heterogeneous photocatalyst to enable alkyl C(sp3)-H in conjunction with the catalytic use of simple photosensitizer, benzophenone, to promote the desired alkyl radical generation. The dual photocatalytic cycle enables cross-dehydrogenative Minisci alkylation under mild and chemical oxidant-free conditions.
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Affiliation(s)
- Hyotaik Kang
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada.
| | - Lida Tan
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
| | - Jing-Tan Han
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
| | - Chia-Yu Huang
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
| | - Hui Su
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
| | - Aleksei Kavun
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street W., Montréal, Québec, H3A0B8, Canada
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11
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Cui W, Guo G, Wang Y, Song X, Lv J, Yang D. Visible light/copper catalysis enabled alkylation of silyl enol ethers with arylsulfonium salts. Chem Commun (Camb) 2023; 59:6367-6370. [PMID: 37144332 DOI: 10.1039/d3cc01056b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
An efficient protocol has been developed herein for the site-selective alkylation of silyl enol ethers with arylsulfonium salts giving access to valuable aryl alkyl thioethers under visible light conditions. Enabled by copper (I) photocatalysis, the C-S bond of arylsulfonium salts can be selectively cleaved to deliver C-centered radicals under mild conditions. This developed method provides a straightforward approach to utilize arylsulfonium salts as sulfur sources for the synthesis of aryl alkyl thioethers.
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Affiliation(s)
- Wenwen Cui
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Guoju Guo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Yifei Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Xiuyan Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Jian Lv
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Daoshan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
- National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
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12
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Li X, Li X, Cui W, Wu Q, Wang L, Lv J, Yang D. Visible-Light Copper Catalysis for the Synthesis of α-Alkyl-Acetophenones by the Radical-Type Ring Opening of Sulfonium Salts and Oxidative Alkylation of Alkenes. Org Lett 2023; 25:3260-3265. [PMID: 37133281 DOI: 10.1021/acs.orglett.3c00990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Direct difunctionalization of simple alkenes has been treated as a powerful synthetic strategy for the construction of highly functionalized skeletons. In this study, direct oxidative coupling of sulfonium salts with alkenes was achieved under mild conditions by a blue-light-driven photoredox process using a copper complex as a photosensitizer. This protocol allows regioselective synthesis of aryl/alkyl ketones from simple sulfonium salts and aromatic alkenes via selective C-S bond cleavage of sulfonium salts and oxidative alkylation of aromatic alkenes using dimethyl sulfoxide (DMSO) as a mild oxidant.
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Affiliation(s)
- Xuan Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Xufeng Li
- Zhejiang Wansheng Co., Ltd., Linhai, Zhejiang 317000, China
| | - Wenwen Cui
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Qilong Wu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Linyuan Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Jian Lv
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Daoshan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
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13
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Chen Z, Ye Y, Feng X, Wang Y, Han X, Zhu Y, Wu S, Wang S, Yang W, Wang L, Zhang J. High-density frustrated Lewis pairs based on Lamellar Nb 2O 5 for photocatalytic non-oxidative methane coupling. Nat Commun 2023; 14:2000. [PMID: 37037834 PMCID: PMC10086065 DOI: 10.1038/s41467-023-37663-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 03/27/2023] [Indexed: 04/12/2023] Open
Abstract
Photocatalytic methane conversion requires a strong polarization environment composed of abundant activation sites with the robust stretching ability for C-H scissoring. High-density frustrated Lewis pairs consisting of low-valence Lewis acid Nb and Lewis base Nb-OH are fabricated on lamellar Nb2O5 through a thermal-reduction promoted phase-transition process. Benefitting from the planar atomic arrangement of lamellar Nb2O5, the frustrated Lewis pairs sites are highly exposed and accessible to reactants, which results in a superior methane conversion rate of 1456 μmol g-1 h-1 for photocatalytic non-oxidative methane coupling without the assistance of noble metals. The time-dependent DFT calculation demonstrates the photo-induced electron transfer from LA to LB sites enhances their intensities in a concerted way, promoting the C-H cleavage through the coupling of LA and LB. This work provides in-depth insight into designing and constructing a polarization micro-environment for photocatalytic C-H activation of methane without the assistance of noble metals.
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Affiliation(s)
- Ziyu Chen
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yutao Ye
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Xiaoyi Feng
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yan Wang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Xiaowei Han
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yu Zhu
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shiqun Wu
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Senyao Wang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Wenda Yang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Lingzhi Wang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China.
| | - Jinlong Zhang
- Shanghai Engineering Research Center for Multi-Media Environmental Catalysis and Resource Utilization, Key Lab for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China.
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14
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Zhang J, Shen J, Li D, Long J, Gao X, Feng W, Zhang S, Zhang Z, Wang X, Yang W. Efficiently Light-Driven Nonoxidative Coupling of Methane on Ag/NaTaO 3: A Case for Molecular-Level Understanding of the Coupling Mechanism. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jiangjie Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
| | - Jinni Shen
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
| | - Dongmiao Li
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
| | - Xiaochen Gao
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai201208, P. R. China
| | - Wenhui Feng
- Hunan Province Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha410022, P. R. China
| | - Shiying Zhang
- Hunan Province Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha410022, P. R. China
| | - Zizhong Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
- Qingyuan Innovation Laboratory, Quanzhou362801, P. R. China
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350106, P. R. China
| | - Weimin Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai201208, P. R. China
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15
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In aqua dual selective photocatalytic conversion of methane to formic acid and methanol with oxygen and water as oxidants without overoxidation. iScience 2023; 26:105942. [PMID: 36711239 PMCID: PMC9876743 DOI: 10.1016/j.isci.2023.105942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/07/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023] Open
Abstract
The direct and selective transformation of naturally abundant methane (CH4) into high-value-added oxygenates, e.g., methanol, ethanol, and formic acid, is one of the "Holy Grails" in chemistry and chemical productions. However, complex mixtures of products, often due to over-oxidations, make such transformations highly challenging. Herein, gallium nitride (GaN), a methane-active semiconductor, catalyzes the photooxidation of methane and empowers the fine-controlling of chemoselectivity toward methanol and formic acids, simply by regulating the O2 content in water. In contrast to previous methods, no overoxidation products (CO2 and CO) were observed in this process. Mechanistic investigations and the corresponding quantitative experiments indicated that the controllable generation of moderately reactive oxygen radicals (•OOH and •OH) in combination with the direct methane activation triggered by GaN is responsible for the highly selective reactivity and tunability through a photo-generated radical process.
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16
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Anti-Markovnikov ring-opening of sulfonium salts with alkynes by visible light/copper catalysis. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1373-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Tan L, Su H, Han J, Liu M, Li CJ. Selective conversion of methane to cyclohexane and hydrogen via efficient hydrogen transfer catalyzed by GaN supported platinum clusters. Sci Rep 2022; 12:18414. [PMID: 36319805 PMCID: PMC9626580 DOI: 10.1038/s41598-022-21915-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022] Open
Abstract
Non-oxidative liquefaction of methane at room temperature and ambient pressure has long been a scientific "holy grail" of chemical research. Herein, we exploit an unprecedented catalytic transformation of methane exclusively to cyclohexane and hydrogen evolution through effective surface-hydrogen-transfer (SHT) at the heterojunctions boundary consisting of electron-rich platinum cluster (Pt) loaded on methane-activating gallium nitride (GaN) host. The experimental analysis demonstrates that the interface-induced overall reaction starts with methane aromatization to benzene and surface-bound hydrogen initiated by the Ga-N pairs, followed by the hydrogenation of benzene to cyclohexane with surface-bound hydrogen. The in-situ activated hydrogen at electron-rich metal Pt cluster is crucial for the hydrogenation and enables an outstanding selectivity (up to 92%) and productivity (41 μmol g-1) towards cyclohexane and hydrogen evolution concurrently at 300 °C, which is well-delivered after 5 recycling runs.
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Affiliation(s)
- Lida Tan
- grid.14709.3b0000 0004 1936 8649Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8 Canada
| | - Hui Su
- grid.14709.3b0000 0004 1936 8649Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8 Canada
| | - Jingtan Han
- grid.14709.3b0000 0004 1936 8649Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8 Canada
| | - Mingxin Liu
- grid.14709.3b0000 0004 1936 8649Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8 Canada ,grid.32566.340000 0000 8571 0482State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000 Gansu China
| | - Chao-Jun Li
- grid.14709.3b0000 0004 1936 8649Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8 Canada
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18
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Zhou P, Navid IA, Xiao Y, Ye Z, Dong WJ, Wang P, Sun K, Mi Z. Metal-Support Interaction-Promoted Photothermal Catalytic Methane Reforming into Liquid Fuels. J Phys Chem Lett 2022; 13:8122-8129. [PMID: 35998363 DOI: 10.1021/acs.jpclett.2c01459] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Clean and renewable photocatalytic technology for methane reforming into high-value liquid fuels, such as methanol, is a promising strategy for commercial industrial applications. However, poor charge separation, sluggish methane activation, and excessive oxidation collectively inhibit the production of methanol from photocatalytic methane reforming. Herein, we have developed enhanced metal-support interactions between a GaN nanowire photocatalyst and a Cu nanoparticle (CuNP) cocatalyst via p-doping in GaN. CuNP-loaded p-type GaN (Cu/p-GaN) with enhanced metal-support interaction has 3.5-fold higher activity (12.8 mmol g-1 h-1, higher than previous reports) for methanol production in photothermal catalytic methane reforming with oxygen as an oxidant and sunlight as the sole energy source than CuNP-loaded intrinsic GaN (Cu/i-GaN) or n-type GaN (Cu/n-GaN). In-situ IR measurements indicate that enhanced metal-support interaction significantly promotes activation of methane and formation of methanol. Combining with X-ray photoelectron spectroscopy (XPS), density functional theory (DFT) simulations demonstrate that this enhanced metal-support interaction in Cu/p-GaN greatly improves electron transfer from p-GaN photocatalysts to the 3d states of CuNP cocatalysts through the interface between them. Catalytic pathway simulations further reveal that the enhanced metal-support interaction in Cu/p-GaN also desirably decreases the reaction energy of rate-determining methanol desorption, which decreases the excessive oxidation of the produced methanol and accelerates the regeneration of surface catalytic sites. These studies and findings offer critical insights into the design and development of metal nanoparticle-loaded photocatalysts for photocatalysis-based methane reforming into methanol.
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Affiliation(s)
- Peng Zhou
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Ishtiaque Ahmed Navid
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yixin Xiao
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Zhengwei Ye
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Wan Jae Dong
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Ping Wang
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kai Sun
- Department of Materials Science and Engineering, University of Michigan, 2300 Hayward Street, Ann Arbor, Michigan 48109, United States
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
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19
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Song H, Ye J. Direct photocatalytic conversion of methane to value-added chemicals. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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20
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Zhang W, Li J, Hui L, Gong T, Qin L, Lu J, Feng H. Mesoporous Silica Supported Highly Dispersed GaN Catalysts Synthesized by Thermal Atomic Layer Deposition for Propane Dehydrogenation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200406] [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]
Affiliation(s)
- Wangle Zhang
- Xi'an Modern Chemistry Research Institute Laboratory of materials surface engineering and nano fabrication CHINA
| | - Jianguo Li
- Xi'an Modern Chemistry Research Institute Laboratory of materials surface engineering and nano fabrication CHINA
| | - Longfei Hui
- Xi'an Modern Chemistry Research Institute Laboratory of materials surface engineering and nano fabrication CHINA
| | - Ting Gong
- Xi'an Modern Chemistry Research Institute Laboratory of materials surface engineering and nano fabrication CHINA
| | - Lijun Qin
- Xi'an Modern Chemistry Research Institute Laboratory of materials surface engineering and nano fabrication CHINA
| | - Jian Lu
- Xi'an Modern Chemistry Research Institute State Key Laboratory of Fluorine and Nitrogen Chemicals CHINA
| | - Hao Feng
- Xi'an Modern Chemistry Research Institute 168 E. Zhangba Road CHINA
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21
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Chu S, Rashid RT, Pan Y, Wang X, Zhang H, Xiao R. The impact of flue gas impurities and concentrations on the photoelectrochemical CO2 reduction. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101993] [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]
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22
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Stepanov AA, Korobitsyna LL, Vosmerikov AV. State-of-the-Art and Achievements in the Catalytic Conversion of Natural Gas into Valuable Chemicals. CATALYSIS IN INDUSTRY 2022. [DOI: 10.1134/s2070050422010093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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24
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Xiao Y, Vanka S, Pham TA, Dong WJ, Sun Y, Liu X, Navid IA, Varley JB, Hajibabaei H, Hamann TW, Ogitsu T, Mi Z. Crystallographic Effects of GaN Nanostructures in Photoelectrochemical Reaction. NANO LETTERS 2022; 22:2236-2243. [PMID: 35258977 DOI: 10.1021/acs.nanolett.1c04220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tuning the surface structure of the photoelectrode provides one of the most effective ways to address the critical challenges in artificial photosynthesis, such as efficiency, stability, and product selectivity, for which gallium nitride (GaN) nanowires have shown great promise. In the GaN wurtzite crystal structure, polar, semipolar, and nonpolar planes coexist and exhibit very different structural, electronic, and chemical properties. Here, through a comprehensive study of the photoelectrochemical performance of GaN photocathodes in the form of films and nanowires with controlled surface polarities we show that significant photoelectrochemical activity can be observed when the nonpolar surfaces are exposed in the electrolyte, whereas little or no activity is measured from the GaN polar c-plane surfaces. The atomic origin of this fundamental difference is further revealed through density functional theory calculations. This study provides guideline on crystal facet engineering of metal-nitride photo(electro)catalysts for a broad range of artificial photosynthesis chemical reactions.
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Affiliation(s)
- Yixin Xiao
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Srinivas Vanka
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Tuan Anh Pham
- Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Wan Jae Dong
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Yi Sun
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Xianhe Liu
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Ishtiaque Ahmed Navid
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Joel B Varley
- Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Hamed Hajibabaei
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
| | - Thomas W Hamann
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
| | - Tadashi Ogitsu
- Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
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25
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Wang ZY, He ZH, Li LY, Yang SY, He MX, Sun YC, Wang K, Chen JG, Liu ZT. Research progress of CO 2 oxidative dehydrogenation of propane to propylene over Cr-free metal catalysts. RARE METALS 2022; 41:2129-2152. [PMID: 35291268 PMCID: PMC8913863 DOI: 10.1007/s12598-021-01959-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/13/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
CO2-assisted oxidative dehydrogenation of propane (CO2-ODHP) is an attractive strategy to offset the demand gap of propylene due to its potentiality of reducing CO2 emissions, especially under the demands of peaking CO2 emissions and carbon neutrality. The introduction of CO2 as a soft oxidant into the reaction not only averts the over-oxidation of products, but also maintains the high oxidation state of the redox-active sites. Furthermore, the presence of CO2 increases the conversion of propane by coupling the dehydrogenation of propane (DHP) with the reverse water gas reaction (RWGS) and inhibits the coking formation to prolong the lifetime of catalysts via the reverse Boudouard reaction. An effective catalyst should selectively activate the C-H bond but suppress the C-C cleavage. However, to prepare such a catalyst remains challenging. Chromium-based catalysts are always applied in industrial application of DHP; however, their toxic properties are harmful to the environment. In this aspect, exploring environment-friendly and sustainable catalytic systems with Cr-free is an important issue. In this review, we outline the development of the CO2-ODHP especially in the last ten years, including the structural information, catalytic performances, and mechanisms of chromium-free metal-based catalyst systems, and the role of CO2 in the reaction. We also present perspectives for future progress in the CO2-ODHP.
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Affiliation(s)
- Zhong-Yu Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Zhen-Hong He
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Long-Yao Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Shao-Yan Yang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Meng-Xin He
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Yong-Chang Sun
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Kuan Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
| | - Jian-Gang Chen
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
| | - Zhao-Tie Liu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021 China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710119 China
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26
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Wang X, Luo N, Wang F. Advances and challenges of photocatalytic methane C−C coupling. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xueyuan Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
- Zhang Dayu School of Chemistry Dalian University of Technology Dalian Liaoning 116024 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Nengchao Luo
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
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27
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He M, Sun Y, Han B. Green Carbon Science: Efficient Carbon Resource Processing, Utilization, and Recycling towards Carbon Neutrality. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mingyuan He
- Shanghai Key Laboratory of Green Chemistry & Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China
- Research Institute of Petrochem Processing, SINOPEC Beijing 100083 China
| | - Yuhan Sun
- Low Carbon Energy Conversion Center Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201203 China
- Shanghai Low Carbon Technology Innovation Platform Shanghai 210620 China
| | - Buxing Han
- Shanghai Key Laboratory of Green Chemistry & Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China
- Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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28
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Li CJ. Carbon–carbon bond formation and green chemistry: one dream and 30 years hence. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Carbon–carbon bond formation is the core of organic synthesis, in which organometallic reagents play the key role in the forms of 1,2-nucleophilic additions, conjugate additions, and transition-metal catalyzed cross-couplings. These reactions have enabled the production of a wide range of organic molecules in our society. Despite the enormous power of organometallic reagents in chemical synthesis, they have inherent drawbacks in the eyes of future sustainability. This account summarizes our efforts over the past three decades on the exploration of new scientific means to overcome the drawbacks and limitations of these classical organometallic reactions.
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Affiliation(s)
- Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
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29
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Li C. On Inventing
Cross‐Dehydrogenative
Coupling (
CDC
): Forming C—C Bond from Two Different C—H Bonds. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100796] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chao‐Jun Li
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street W., Montreal Quebec H3A0B8 Canada
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30
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Li Q, Ouyang Y, Li H, Wang L, Zeng J. Photocatalytic Conversion of Methane: Recent Advancements and Prospects. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202108069] [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]
Affiliation(s)
- Qi Li
- State Key Laboratory for Powder Metallurgy School of Materials Science and Engineering Central South University Changsha Hunan 410083 P. R. China
| | - Yuxing Ouyang
- State Key Laboratory for Powder Metallurgy School of Materials Science and Engineering Central South University Changsha Hunan 410083 P. R. China
| | - Hongliang Li
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Liangbing Wang
- State Key Laboratory for Powder Metallurgy School of Materials Science and Engineering Central South University Changsha Hunan 410083 P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. China
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31
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He M, Sun Y, Han B. Green Carbon Science: Efficient Carbon Resource Processing, Utilization, and Recycling Towards Carbon Neutrality. Angew Chem Int Ed Engl 2021; 61:e202112835. [PMID: 34919305 DOI: 10.1002/anie.202112835] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 11/10/2022]
Abstract
Green carbon science is defined as "Study and optimization of the transformation of carbon containing compounds and the relevant processes involved in the entire carbon cycle from carbon resource processing, carbon energy utilization, and carbon recycling to use carbon resources efficiently and minimize the net CO2 emission." [1] Green carbon science is related closely to carbon neutrality, and the relevant fields have developed quickly in the last decade. In this Minireview, we proposed the concept of carbon energy index, and the recent progresses in petroleum refining, production of liquid fuels, chemicals, and materials using coal, methane, CO2, biomass, and waste plastics are highlighted in combination with green carbon science, and an outlook for these important fields is provided in the final section.
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Affiliation(s)
- Mingyuan He
- East China Normal University, Department of Chemistry, 200062, Shanghai, CHINA
| | - Yuhan Sun
- Chinese Academy of Sciences, Shanghai Advanced Research Institute, 201203, Shanghai, CHINA
| | - Buxing Han
- Chinese Academy of Sciences, Institute of Chemistry, Beiyijie number 2, Zhongguancun, 100190, Beijing, CHINA
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32
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33
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Wang G, Mu X, Li J, Zhan Q, Qian Y, Mu X, Li L. Light‐Induced Nonoxidative Coupling of Methane Using Stable Solid Solutions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108870] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Guangming Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Xiaowei Mu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
- College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Jiayang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Qingyun Zhan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Yumeng Qian
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Xiaoyue Mu
- College of Chemistry Jilin University Changchun 130012 P.R. China
| | - Lu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P.R. China
- College of Chemistry Jilin University Changchun 130012 P.R. China
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34
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Liu L, Corma A. Isolated metal atoms and clusters for alkane activation: Translating knowledge from enzymatic and homogeneous to heterogeneous systems. Chem 2021. [DOI: 10.1016/j.chempr.2021.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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35
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Qi MY, Conte M, Anpo M, Tang ZR, Xu YJ. Cooperative Coupling of Oxidative Organic Synthesis and Hydrogen Production over Semiconductor-Based Photocatalysts. Chem Rev 2021; 121:13051-13085. [PMID: 34378934 DOI: 10.1021/acs.chemrev.1c00197] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Merging hydrogen (H2) evolution with oxidative organic synthesis in a semiconductor-mediated photoredox reaction is extremely attractive because the clean H2 fuel and high-value chemicals can be coproduced under mild conditions using light as the sole energy input. Following this dual-functional photocatalytic strategy, a dreamlike reaction pathway for constructing C-C/C-X (X = C, N, O, S) bonds from abundant and readily available X-H bond-containing compounds with concomitant release of H2 can be readily fulfilled without the need of external chemical reagents, thus offering a green and fascinating organic synthetic strategy. In this review, we begin by presenting a concise overview on the general background of traditional photocatalytic H2 production and then focus on the fundamental principles of cooperative photoredox coupling of selective organic synthesis and H2 production by simultaneous utilization of photoexcited electrons and holes over semiconductor-based catalysts to meet the economic and sustainability goal. Thereafter, we put dedicated emphasis on recent key progress of cooperative photoredox coupling of H2 production and various selective organic transformations, including selective alcohol oxidation, selective methane conversion, amines oxidative coupling, oxidative cross-coupling, cyclic alkanes dehydrogenation, reforming of lignocellulosic biomass, and so on. Finally, the remaining challenges and future perspectives in this flourishing area have been critically discussed. It is anticipated that this review will provide enlightening guidance on the rational design of such dual-functional photoredox reaction system, thereby stimulating the development of economical and environmentally benign solar fuel generation and organic synthesis of value-added fine chemicals.
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Affiliation(s)
- Ming-Yu Qi
- College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, P. R. China
| | - Marco Conte
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - Masakazu Anpo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, Japan
| | - Zi-Rong Tang
- College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, P. R. China
| | - Yi-Jun Xu
- College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, P. R. China
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36
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Wang G, Mu X, Li J, Zhan Q, Qian Y, Mu X, Li L. Light-Induced Nonoxidative Coupling of Methane Using Stable Solid Solutions. Angew Chem Int Ed Engl 2021; 60:20760-20764. [PMID: 34292637 DOI: 10.1002/anie.202108870] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Indexed: 11/10/2022]
Abstract
Achieving efficient and direct conversion of methane under mild conditions is of great significance for innovations in the chemical industry. However, the efficiency and lifetime of most catalysts remain too far from practical requirements, since it is difficult to break the first C-H bond of methane as well as to suppress the following complete dehydrogenation (or overoxidation) and the resulting carbonaceous deposition (or CO2 ). Here, we report that wurtzite GaN:ZnO solid solutions exhibit unique and unprecedented photocatalytic performances for the nonoxidative coupling of methane at room temperature, exclusively generating ethane with nearly stoichiometric H2 . High conversion rate (>330 μmol g-1 h-1 ), long-term stability (>70 h), and superior coke-resistance were achieved. At 293 K, the methane conversion exceeds 7 %, comparable to the equilibrium conversion of thermal catalysis at 910 K. Mechanistic studies revealed that the N-ZnGa -ON units and the absence of acid sites on the surface played crucial roles in reactivity and coke resistance, respectively.
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Affiliation(s)
- Guangming Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Xiaowei Mu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China.,College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Jiayang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Qingyun Zhan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Yumeng Qian
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Xiaoyue Mu
- College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Lu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China.,College of Chemistry, Jilin University, Changchun, 130012, P.R. China
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37
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Li Q, Ouyang Y, Li H, Wang L, Zeng J. Photocatalytic Conversion of Methane: Recent Advancements and Prospects. Angew Chem Int Ed Engl 2021; 61:e202108069. [PMID: 34309996 DOI: 10.1002/anie.202108069] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Indexed: 11/07/2022]
Abstract
Abundant and affordable methane is not only a high-quality fossil fuel, it is also a raw material for the synthesis of value-added chemicals. Solar-energy-driven conversion of methane offers a promising approach to directly transform methane to valuable energy sources under mild conditions, but remains a great challenge at present. In this Review, recent advances in the photocatalytic conversion of methane are systematically summarized. Insights into the construction of effective semiconductor-based photocatalysts from the perspective of light-absorption units and active centers are highlighted and discussed in detail. The performance of various photocatalysts in the conversion of methane is presented, with the photooxidation classified according to the oxidant systems. Lastly, challenges and future perspectives in the photocatalytic oxidation of methane are described.
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Affiliation(s)
- Qi Li
- State Key Laboratory for Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yuxing Ouyang
- State Key Laboratory for Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Hongliang Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Liangbing Wang
- State Key Laboratory for Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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38
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Miao TJ, Wang C, Xiong L, Li X, Xie J, Tang J. In Situ Investigation of Charge Performance in Anatase TiO 2 Powder for Methane Conversion by Vis-NIR Spectroscopy. ACS Catal 2021; 11:8226-8238. [PMID: 34306811 PMCID: PMC8291573 DOI: 10.1021/acscatal.1c01998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/01/2021] [Indexed: 12/14/2022]
Abstract
![]()
The
intrinsic behavior of photogenerated charges and reactions
with chemicals are key for a photocatalytic process. To observe these
basic steps is of great importance. Here we present a reliable and
robust system to monitor these basic steps in powder photocatalysts,
and more importantly to elucidate the key issue in photocatalytic
methane conversion over the benchmark catalyst TiO2. Under
constant excitation, the absorption signal across the NIR region was
demonstrated to be dominated by photoexcited electrons, the absorption
of photoexcited holes increases toward shorter wavelengths in the
visible region, and the overall shapes of the photoinduced absorption
spectra obtained using the system demonstrated in the present work
are consistent with widely accepted transient absorption results.
Next, in situ measurements provide direct experimental
evidence that the initial step of methane activation over TiO2 involves oxidation by photoexcited holes. It is calculated
that 90 ± 6% of photoexcited electrons are scavenged by O2 (in dry air), 61 ± 9% of photoexcited holes are scavenged
by methane (10% in argon), and a similar amount of photoexcited electrons
can be scavenged by O2 even when the O2 concentration
is reduced by a factor of 10. The present results suggest that O2 is much more easily activated in comparison to methane over
anatase TiO2, which rationalizes the much higher methane/O2 ratio frequently used in practice in comparison to that required
stoichiometrically for photocatalytic production of value-added chemicals
via methane oxidation with oxygen. In addition, methanol (a preferable
product of methane oxidation) is much more readily oxidized than methane
over anatase TiO2.
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Affiliation(s)
- Tina Jingyan Miao
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Chao Wang
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Lunqiao Xiong
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Xiyi Li
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Jijia Xie
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Junwang Tang
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
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39
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Zhang Y, Zhang M, Han Z, Huang S, Yuan D, Su W. Atmosphere-Pressure Methane Oxidation to Methyl Trifluoroacetate Enabled by a Porous Organic Polymer-Supported Single-Site Palladium Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05205] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yiwen Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Min Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Zhengbo Han
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Shijun Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Daqiang Yuan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Weiping Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
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40
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Liu M, Tan L, Zhou B, Li L, Mi Z, Li CJ. Group-III Nitrides Catalyzed Transformations of Organic Molecules. Chem 2021. [DOI: 10.1016/j.chempr.2020.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Jiang W, Low J, Mao K, Duan D, Chen S, Liu W, Pao CW, Ma J, Sang S, Shu C, Zhan X, Qi Z, Zhang H, Liu Z, Wu X, Long R, Song L, Xiong Y. Pd-Modified ZnO-Au Enabling Alkoxy Intermediates Formation and Dehydrogenation for Photocatalytic Conversion of Methane to Ethylene. J Am Chem Soc 2020; 143:269-278. [PMID: 33373209 DOI: 10.1021/jacs.0c10369] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Photocatalysis provides an intriguing approach for the conversion of methane to multicarbon (C2+) compounds under mild conditions; however, with methyl radicals as the sole reaction intermediate, the current C2+ products are dominated by ethane, with a negligible selectivity toward ethylene, which, as a key chemical feedstock, possesses higher added value than ethane. Herein, we report a direct photocatalytic methane-to-ethylene conversion pathway involving the formation and dehydrogenation of alkoxy (i.e., methoxy and ethoxy) intermediates over a Pd-modified ZnO-Au hybrid catalyst. On the basis of various in situ characterizations, it is revealed that the Pd-induced dehydrogenation capability of the catalyst holds the key to turning on the pathway. During the reaction, methane molecules are first dissociated into methoxy on the surface of ZnO under the assistance of Pd. Then these methoxy intermediates are further dehydrogenated and coupled with methyl radical into ethoxy, which can be subsequently converted into ethylene through dehydrogenation. As a result, the optimized ZnO-AuPd hybrid with atomically dispersed Pd sites in the Au lattice achieves a methane conversion of 536.0 μmol g-1 with a C2+ compound selectivity of 96.0% (39.7% C2H4 and 54.9% C2H6 in total produced C2+ compounds) after 8 h of light irradiation. This work provides fresh insight into the methane conversion pathway under mild conditions and highlights the significance of dehydrogenation for enhanced photocatalytic activity and unsaturated hydrocarbon product selectivity.
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Affiliation(s)
- Wenbin Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, 350 Shushanhu Road, Hefei, Anhui 230031, China
| | - Jingxiang Low
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Keke Mao
- School of Energy and Environment Science, Anhui University of Technology, Maanshan, Anhui 243032, China
| | - Delong Duan
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shuangming Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wei Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Jun Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shuaikang Sang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chang Shu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaoyi Zhan
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Zeming Qi
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hui Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Zhi Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201203, China.,State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Xiaojun Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ran Long
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Li Song
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, 350 Shushanhu Road, Hefei, Anhui 230031, China
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42
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Li X, Xie J, Rao H, Wang C, Tang J. Platinum- and CuO x -Decorated TiO 2 Photocatalyst for Oxidative Coupling of Methane to C 2 Hydrocarbons in a Flow Reactor. Angew Chem Int Ed Engl 2020; 59:19702-19707. [PMID: 32584481 PMCID: PMC7689917 DOI: 10.1002/anie.202007557] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 11/24/2022]
Abstract
Oxidative coupling of methane (OCM) is considered one of the most promising catalytic technologies to upgrade methane. However, C2 products (C2 H6 /C2 H4 ) from conventional methane conversion have not been produced commercially owing to competition from overoxidation and carbon accumulation at high temperatures. Herein, we report the codeposition of Pt nanoparticles and CuOx clusters on TiO2 (PC-50) and use of the resulting photocatalyst for OCM in a flow reactor operated at room temperature under atmospheric pressure for the first time. The optimized Cu0.1 Pt0.5 /PC-50 sample showed a highest yield of C2 product of 6.8 μmol h-1 at a space velocity of 2400 h-1 , more than twice the sum of the activity of Pt/PC-50 (1.07 μmol h-1 ) and Cu/PC-50 (1.9 μmol h-1 ), it might also be the highest among photocatalytic methane conversions reported so far under atmospheric pressure. A high C2 selectivity of 60 % is also comparable to that attainable by conventional high-temperature (>943 K) thermal catalysis. It is proposed that Pt functions as an electron acceptor to facilitate charge separation, while holes could transfer to CuOx to avoid deep dehydrogenation and the overoxidation of C2 products.
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Affiliation(s)
- Xiyi Li
- Solar Energy and Advanced Materials Research GroupDepartment of Chemical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
| | - Jijia Xie
- Solar Energy and Advanced Materials Research GroupDepartment of Chemical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University2699 Qianjin StreetChangchun130012China
- International Center of Future ScienceJilin University2699 Qianjin StreetChangchun130012China
| | - Chao Wang
- Solar Energy and Advanced Materials Research GroupDepartment of Chemical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
| | - Junwang Tang
- Solar Energy and Advanced Materials Research GroupDepartment of Chemical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
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43
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Visible-light-induced regioselective cross-dehydrogenative coupling of 2-isothiocyanatonaphthalenes with amines using molecular oxygen. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9811-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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44
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Li X, Xie J, Rao H, Wang C, Tang J. Platinum‐ and CuO
x
‐Decorated TiO
2
Photocatalyst for Oxidative Coupling of Methane to C
2
Hydrocarbons in a Flow Reactor. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007557] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiyi Li
- Solar Energy and Advanced Materials Research Group Department of Chemical Engineering University College London Torrington Place London WC1E 7JE UK
| | - Jijia Xie
- Solar Energy and Advanced Materials Research Group Department of Chemical Engineering University College London Torrington Place London WC1E 7JE UK
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 China
- International Center of Future Science Jilin University 2699 Qianjin Street Changchun 130012 China
| | - Chao Wang
- Solar Energy and Advanced Materials Research Group Department of Chemical Engineering University College London Torrington Place London WC1E 7JE UK
| | - Junwang Tang
- Solar Energy and Advanced Materials Research Group Department of Chemical Engineering University College London Torrington Place London WC1E 7JE UK
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Liu M, Tan L, Rashid RT, Cen Y, Cheng S, Botton G, Mi Z, Li CJ. GaN nanowires as a reusable photoredox catalyst for radical coupling of carbonyl under blacklight irradiation. Chem Sci 2020; 11:7864-7870. [PMID: 34123073 PMCID: PMC8163334 DOI: 10.1039/d0sc02718a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/30/2020] [Indexed: 01/08/2023] Open
Abstract
Employing photo-energy to drive the desired chemical transformation has been a long pursued subject. The development of homogeneous photoredox catalysts in radical coupling reactions has been truly phenomenal, however, with apparent disadvantages such as the difficulty in separating the catalyst and the frequent requirement of scarce noble metals. We therefore envisioned the use of a hyper-stable III-V photosensitizing semiconductor with a tunable Fermi level and energy band as a readily isolable and recyclable heterogeneous photoredox catalyst for radical coupling reactions. Using the carbonyl coupling reaction as a proof-of-concept, herein, we report a photo-pinacol coupling reaction catalyzed by GaN nanowires under ambient light at room temperature with methanol as a solvent and sacrificial reagent. By simply tuning the dopant, the GaN nanowire shows significantly enhanced electronic properties. The catalyst showed excellent stability, reusability and functional tolerance. All reactions could be accomplished with a single piece of nanowire on Si-wafer.
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Affiliation(s)
- Mingxin Liu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Ouest Montreal Quebec H3A 0B8 Canada
- Department of Electrical Engineering and Computer Science, University of Michigan 1301 Beal Ave Ann Arbor MI 48109 USA
| | - Lida Tan
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Ouest Montreal Quebec H3A 0B8 Canada
| | - Roksana T Rashid
- Department of Electrical and Computer Engineering, McGill University 3480 University Montreal Quebec H3A 0E9 Canada
| | - Yunen Cen
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Ouest Montreal Quebec H3A 0B8 Canada
| | - Shaobo Cheng
- Department of Material Science and Engineering, Canadian Centre for Electron Microscopy, McMaster University 1280 Main Street West Hamilton ON L8S 4M1 Canada
| | - Gianluigi Botton
- Department of Material Science and Engineering, Canadian Centre for Electron Microscopy, McMaster University 1280 Main Street West Hamilton ON L8S 4M1 Canada
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan 1301 Beal Ave Ann Arbor MI 48109 USA
- Department of Electrical and Computer Engineering, McGill University 3480 University Montreal Quebec H3A 0E9 Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Ouest Montreal Quebec H3A 0B8 Canada
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Xu Y, Chen M, Wang T, Liu B, Jiang F, Liu X. Probing cobalt localization on HZSM-5 for efficient methane dehydroaromatization catalysts. J Catal 2020. [DOI: 10.1016/j.jcat.2020.04.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tan B, Ye Y, Huang Z, Ye L, Ma M, Zhou Y. Promotion of photocatalytic steam reforming of methane over Ag0/Ag+-SrTiO3. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Ishihara A, Takai K, Hashimoto T, Nasu H. Effects of a Matrix on Formation of Aromatic Compounds by Dehydrocyclization of n-Pentane Using ZnZSM-5-Al 2O 3 Composite Catalysts. ACS OMEGA 2020; 5:11160-11166. [PMID: 32455239 PMCID: PMC7241044 DOI: 10.1021/acsomega.0c01147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
In this study, the effects of the combination of a mesoporous material and Zn-exchanged ZSM-5 on the activity and selectivity of aromatic compounds in dehydrocyclization of n-pentane were investigated. A total of 65-85 wt % of ZnZSM-5 was mixed with 0-20 wt % of Al2O3 and 15 wt % of the alumina-sol binder using a conventional kneading method. Dehydrocyclization of n-pentane was performed using a fixed-bed reactor under the conditions of a H2 atmosphere and the temperature range of 450-550 °C. Conversions of n-pentane tended to increase upon increasing the amounts of zeolite content and ZnZSM/0A (85 wt % ZnZSM-5, 0 wt % Al2O3, and 15 wt % binder) exhibited the highest value. The selectivity for toluene and benzene increased with increasing temperature, while it decreased in the order ZnZSM/10A > ZnZSM/0A > ZnZSM/20A in comparison at the same temperature. Upon changing the carrier gas, the conversion decreased in the order CH4 > H2 > H2 + N2 > N2. Although the selectivity for aromatics was higher under CH4 and N2 atmospheres, the conversions decreased at 550 °C with time, suggesting that the deactivation would proceed by coke formation. Furthermore, the selectivity for aromatics of ZnZSM/10A was higher than that of ZnZSM/0A, indicating that the use of mesoporous Al2O3 as a matrix would be very effective for this reaction and draw the maximum catalytic functions. When the reaction route was estimated from the amounts of methane and C2 and C3 fractions formed, it was proposed that active Zn species would catalyze the aromatization of olefins where benzene is formed from ethene and butene, toluene from propene and butene, and xylene from 2 molecules of butene.
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Zhang L, Wang ZY, Song J, Lang Y, Chen JG, Luo QX, He ZH, Wang K, Liu ZW, Liu ZT. Facile synthesis of SiO2 supported GaN as an active catalyst for CO2 enhanced dehydrogenation of propane. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.02.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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