1
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Su HS, Liu Y, Tian H, Chen D, Shen Q, Chang X, Lu Q, Xu B. Selective C-H Bond Activation in Propane with Molecular Oxygen over Cu(I)-ZSM-5 at Ambient Conditions. J Am Chem Soc 2024; 146:17170-17179. [PMID: 38865584 DOI: 10.1021/jacs.4c03184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Selective activation of C-H bonds in light alkanes under mild conditions is challenging but holds the promise of efficient upgrading of abundant hydrocarbons. In this work, we report the conversion of propane to propylene with ∼95% selectivity on Cu(I)-ZSM-5 with O2 at room temperature and pressure. The intraporous Cu(I) species was oxidized to Cu(II) during the reaction but could be regenerated with H2 at 220 °C. Diffuse reflectance ultraviolet spectroscopy indicated the presence of both Cu+-O2 and Cu2(μ-O2)2+ species in the zeolite pores during the reaction, and electron paramagnetic resonance results showed that propane activation occurred via a radical-mediated pathway distinct from that with H2O2 as the oxidant. Correlation between spectroscopic and reactivity results on Cu(I)-ZSM-5 with different Cu loadings suggests that the isolated intraporous Cu(I) species is the main active species in propane activation.
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Affiliation(s)
- Hai-Sheng Su
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Yiwei Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Hao Tian
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Dinghui Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Qikai Shen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Xiaoxia Chang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
| | - Qi Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Ordos Laboratory, Inner Mongolia 017000, China
| | - Bingjun Xu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100871, China
- Ordos Laboratory, Inner Mongolia 017000, China
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2
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Si D, Teng X, Xiong B, Chen L, Shi J. Electrocatalytic functional group conversion-based carbon resource upgrading. Chem Sci 2024; 15:6269-6284. [PMID: 38699249 PMCID: PMC11062096 DOI: 10.1039/d4sc00175c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/23/2024] [Indexed: 05/05/2024] Open
Abstract
The conversions of carbon resources, such as alcohols, aldehydes/ketones, and ethers, have been being one of the hottest topics most recently for the goal of carbon neutralization. The emerging electrocatalytic upgrading has been regarded as a promising strategy aiming to convert carbon resources into value-added chemicals. Although exciting progress has been made and reviewed recently in this area by mostly focusing on the explorations of valuable anodic oxidation or cathodic reduction reactions individually, however, the reaction rules of these reactions are still missing, and how to purposely find or rationally design novel but efficient reactions in batches is still challenging. The properties and transformations of key functional groups in substrate molecules play critically important roles in carbon resources conversion reactions, which have been paid more attention to and may offer hidden keys to achieve the above goal. In this review, the properties of functional groups are addressed and discussed in detail, and the reported electrocatalytic upgrading reactions are summarized in four categories based on the types of functional groups of carbon resources. Possible reaction pathways closely related to functional groups will be summarized from the aspects of activation, cleavage and formation of chemical bonds. The current challenges and future opportunities of electrocatalytic upgrading of carbon resources are discussed at the end of this review.
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Affiliation(s)
- Di Si
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Xue Teng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Bingyan Xiong
- Shanghai Tenth People's Hospital, Shanghai Frontiers Science Center of Nanocatalytic Medicine, School of Medicine, Tongji University Shanghai 200072 P. R. China
| | - Lisong Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
- Institute of Eco-Chongming Shanghai 202162 China
| | - Jianlin Shi
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 P. R. China
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3
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Wang Y, Xu M, Wang X, Ge R, Zhu YQ, Li AZ, Zhou H, Chen F, Zheng L, Duan H. Unraveling the potential-dependent structure evolution in CuO for electrocatalytic biomass valorization. Sci Bull (Beijing) 2023; 68:2982-2992. [PMID: 37798176 DOI: 10.1016/j.scib.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/09/2023] [Accepted: 09/15/2023] [Indexed: 10/07/2023]
Abstract
Electrocatalytic oxidation of renewable biomass (such as glucose) into high-value-added chemicals provides an effective approach to achieving carbon neutrality. CuO-derived materials are among the most promising electrocatalysts for biomass electrooxidation, but the identification of their active sites under electrochemical conditions remains elusive. Herein, we report a potential-dependent structure evolution over CuO in the glucose oxidation reaction (GOR). Through systematic electrochemical and spectroscopic characterizations, we unveil that CuO undergoes Cu2+/Cu+ and Cu3+/Cu2+ redox processes at increased potentials with successive generation of Cu(OH)2 and CuOOH as the active phases. In addition, these two structures have distinct activities in the GOR, with Cu(OH)2 being favorable for aldehyde oxidation, and CuOOH showed faster kinetics in carbon-carbon cleavage and alcohol/aldehyde oxidation. This work deepens our understanding of the dynamic reconstruction of Cu-based catalysts under electrochemical conditions and may guide rational material design for biomass valorization.
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Affiliation(s)
- Ye Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ming Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xi Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ruixiang Ge
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Quan Zhu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - An-Zhen Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China; Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hua Zhou
- Department of Chemistry, Tsinghua University, Beijing 100084, China; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Fengen Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China; Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China.
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4
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Kishore MA, Lee S, Yoo JS. Fundamental Limitation in Electrochemical Methane Oxidation to Alcohol: A Review and Theoretical Perspective on Overcoming It. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301912. [PMID: 37740423 PMCID: PMC10625077 DOI: 10.1002/advs.202301912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/27/2023] [Indexed: 09/24/2023]
Abstract
The direct conversion of gaseous methane to energy-dense liquid derivatives such as methanol and ethanol is of profound importance for the more efficient utilization of natural gas. However, the thermo-catalytic partial oxidation of this simple alkane has been a significant challenge due to the high C-H bond energy. Exploiting electrocatalysis for methane activation via active oxygen species generated on the catalyst surface through electrochemical water oxidation is generally considered as economically viable and environmentally benign compared to energy-intensive thermo-catalysis. Despite recent progress in electrochemical methane oxidation to alcohol, the competing oxygen evolution reaction (OER) still impedes achieving high faradaic efficiency and product selectivity. In this review, an overview of current progress in electrochemical methane oxidation, focusing on mechanistic insights on methane activation, catalyst design principles based on descriptors, and the effect of reaction conditions on catalytic performance are provided. Mechanistic requirements for high methanol selectivity, and limitations of using water as the oxidant are discussed, and present the perspective on how to overcome these limitations by employing carbonate ions as the oxidant.
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Affiliation(s)
- M.R. Ashwin Kishore
- Department of Chemical EngineeringUniversity of SeoulSeoul02504Republic of Korea
| | - Sungwoo Lee
- Department of Chemical EngineeringUniversity of SeoulSeoul02504Republic of Korea
| | - Jong Suk Yoo
- Department of Chemical EngineeringUniversity of SeoulSeoul02504Republic of Korea
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5
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Taseska T, Yu W, Wilsey MK, Cox CP, Meng Z, Ngarnim SS, Müller AM. Analysis of the Scale of Global Human Needs and Opportunities for Sustainable Catalytic Technologies. Top Catal 2023; 66:338-374. [PMID: 37025115 PMCID: PMC10007685 DOI: 10.1007/s11244-023-01799-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2023] [Indexed: 03/13/2023]
Abstract
AbstractWe analyzed the enormous scale of global human needs, their carbon footprint, and how they are connected to energy availability. We established that most challenges related to resource security and sustainability can be solved by providing distributed, affordable, and clean energy. Catalyzed chemical transformations powered by renewable electricity are emerging successor technologies that have the potential to replace fossil fuels without sacrificing the wellbeing of humans. We highlighted the technical, economic, and societal advantages and drawbacks of short- to medium-term decarbonization solutions to gauge their practicability, economic feasibility, and likelihood for widespread acceptance on a global scale. We detailed catalysis solutions that enhance sustainability, along with strategies for catalyst and process development, frontiers, challenges, and limitations, and emphasized the need for planetary stewardship. Electrocatalytic processes enable the production of solar fuels and commodity chemicals that address universal issues of the water, energy and food security nexus, clothing, the building sector, heating and cooling, transportation, information and communication technology, chemicals, consumer goods and services, and healthcare, toward providing global resource security and sustainability and enhancing environmental and social justice.
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Affiliation(s)
- Teona Taseska
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
| | - Wanqing Yu
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
| | | | - Connor P. Cox
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
| | - Ziyi Meng
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
| | - Soraya S. Ngarnim
- Department of Chemistry, University of Rochester, 14627 Rochester, NY USA
| | - Astrid M. Müller
- Department of Chemical Engineering, University of Rochester, 14627 Rochester, NY USA
- Materials Science Program, University of Rochester, 14627 Rochester, NY USA
- Department of Chemistry, University of Rochester, 14627 Rochester, NY USA
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6
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Dummer NF, Willock DJ, He Q, Howard MJ, Lewis RJ, Qi G, Taylor SH, Xu J, Bethell D, Kiely CJ, Hutchings GJ. Methane Oxidation to Methanol. Chem Rev 2022; 123:6359-6411. [PMID: 36459432 PMCID: PMC10176486 DOI: 10.1021/acs.chemrev.2c00439] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The direct transformation of methane to methanol remains a significant challenge for operation at a larger scale. Central to this challenge is the low reactivity of methane at conditions that can facilitate product recovery. This review discusses the issue through examination of several promising routes to methanol and an evaluation of performance targets that are required to develop the process at scale. We explore the methods currently used, the emergence of active heterogeneous catalysts and their design and reaction mechanisms and provide a critical perspective on future operation. Initial experiments are discussed where identification of gas phase radical chemistry limited further development by this approach. Subsequently, a new class of catalytic materials based on natural systems such as iron or copper containing zeolites were explored at milder conditions. The key issues of these technologies are low methane conversion and often significant overoxidation of products. Despite this, interest remains high in this reaction and the wider appeal of an effective route to key products from C-H activation, particularly with the need to transition to net carbon zero with new routes from renewable methane sources is exciting.
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Affiliation(s)
- Nicholas F. Dummer
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - David J. Willock
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Qian He
- Department of Materials Science and Engineering, National University of Singapore, Singapore117575, Singapore
| | - Mark J. Howard
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Richard J. Lewis
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Guodong Qi
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, P. R. China
- University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Stuart H. Taylor
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
| | - Jun Xu
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, P. R. China
- University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Don Bethell
- Department of Chemistry, University of Liverpool, Crown Street, LiverpoolL69 7ZD, United Kingdom
| | - Christopher J. Kiely
- Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania18015, United States
| | - Graham J. Hutchings
- Max Planck−Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CardiffCF10 3AT, United Kingdom
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7
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Prajapati A, Sartape R, Kani NC, Gauthier JA, Singh MR. Chloride-Promoted High-Rate Ambient Electrooxidation of Methane to Methanol on Patterned Cu–Ti Bimetallic Oxides. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03619] [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)
- Aditya Prajapati
- Department of Chemical Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, Illinois60607, United States
| | - Rohan Sartape
- Department of Chemical Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, Illinois60607, United States
| | - Nishithan C. Kani
- Department of Chemical Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, Illinois60607, United States
| | - Joseph A. Gauthier
- Texas Tech University, Department of Chemical Engineering, Lubbock, Texas79409, United States
| | - Meenesh R. Singh
- Department of Chemical Engineering, University of Illinois Chicago, 929 W. Taylor St., Chicago, Illinois60607, United States
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8
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Coelho JF, Filho NGP, Gutierrez IM, Godoi CM, Gomes PVR, Zambiazi PJ, de Souza RFB, Neto AO. Methane-to-methanol conversion and power co-generation on palladium: nickel supported on antimony tin oxide catalysts in a polymeric electrolyte reactor-fuel cell (PER-FC). RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04857-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Xiang D, Lin SC, Deng J, Chen HM, Liu C. Bisulfate as a redox-active ligand in vanadium-based electrocatalysis for CH 4 functionalization. Chem Commun (Camb) 2022; 58:2524-2527. [PMID: 35098285 DOI: 10.1039/d1cc06596c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The roles of unforgiving H2SO4 solvent in CH4 activation with molecular catalysts have not been experimentally well-illustrated despite computational predictions. Here, we provide experimental evidence that metal-bound bisulfate ligand introduced by H2SO4 solvent is redox-active in vanadium-based electrocatalytic CH4 activation discovered recently. Replacing one of the two terminal bisulfate ligands with redox-inert dihydrogen phosphate in the pre-catalyst vanadium (V)-oxo dimer completely quenches its activity towards CH4, which may inspire environmentally benign catalysis with minimal use of H2SO4.
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Affiliation(s)
- Danlei Xiang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, USA.
| | - Sheng-Chih Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Jiao Deng
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, USA.
| | - Hao Ming Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Chong Liu
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, USA. .,California NanoSystems Institute, University of California Los Angeles, Los Angeles, California 90095, USA
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10
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Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals: A Short Review. Catalysts 2022. [DOI: 10.3390/catal12020217] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The conversion of methane into chemicals is of interest to achieve a decarbonized future. Fuel cells are electrochemical devices commonly used to obtain electrical energy but can be utilized either for chemicals’ production or both energy and chemicals cogeneration. In this work, the partial oxidation of methane in fuel cells for electricity generation and valuable chemicals production at the same time is reviewed. For this purpose, we compile different types of methane-fed fuel cells, both low- and high-temperature fuel cells. Despite the fact that few studies have been conducted on this subject, promising results are driving the development of fuel cells that use methane as a fuel source for the cogeneration of power and valuable chemicals.
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11
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Britschgi J, Bilke M, Schuhmann W, Schüth F. Indirect Electrooxidation of Methane to Methyl Bisulfate on a Boron‐Doped Diamond Electrode. ChemElectroChem 2022. [DOI: 10.1002/celc.202101253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Joel Britschgi
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
| | - Marius Bilke
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
| | - Ferdi Schüth
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim Germany
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12
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Ma C, Fang P, Liu ZR, Xu SS, Xu K, Cheng X, Lei A, Xu HC, Zeng C, Mei TS. Recent advances in organic electrosynthesis employing transition metal complexes as electrocatalysts. Sci Bull (Beijing) 2021; 66:2412-2429. [PMID: 36654127 DOI: 10.1016/j.scib.2021.07.011] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 01/20/2023]
Abstract
Organic electrosynthesis has been widely used as an environmentally conscious alternative to conventional methods for redox reactions because it utilizes electric current as a traceless redox agent instead of chemical redox agents. Indirect electrolysis employing a redox catalyst has received tremendous attention, since it provides various advantages compared to direct electrolysis. With indirect electrolysis, overpotential of electron transfer can be avoided, which is inherently milder, thus wide functional group tolerance can be achieved. Additionally, chemoselectivity, regioselectivity, and stereoselectivity can be tuned by the redox catalysts used in indirect electrolysis. Furthermore, electrode passivation can be avoided by preventing the formation of polymer films on the electrode surface. Common redox catalysts include N-oxyl radicals, hypervalent iodine species, halides, amines, benzoquinones (such as DDQ and tetrachlorobenzoquinone), and transition metals. In recent years, great progress has been made in the field of indirect organic electrosynthesis using transition metals as redox catalysts for reaction classes including C-H functionalization, radical cyclization, and cross-coupling of aryl halides-each owing to the diverse reactivity and accessible oxidation states of transition metals. Although various reviews of organic electrosynthesis are available, there is a lack of articles that focus on recent research progress in the area of indirect electrolysis using transition metals, which is the impetus for this review.
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Affiliation(s)
- Cong Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ping Fang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhao-Ran Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shi-Shuo Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Kun Xu
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Xu Cheng
- Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
| | - Hai-Chao Xu
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Chengchu Zeng
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Tian-Sheng Mei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China.
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13
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Deng J, Lin S, Fuller JT, Zandkarimi B, Chen HM, Alexandrova AN, Liu C. Electrocatalytic Methane Functionalization with d
0
Early Transition Metals Under Ambient Conditions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107720] [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)
- Jiao Deng
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Sheng‐Chih Lin
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan
| | - Jack T. Fuller
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Borna Zandkarimi
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
| | - Hao Ming Chen
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan
| | - Anastassia N. Alexandrova
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
- California NanoSystems Institute Los Angeles CA 90095 USA
| | - Chong Liu
- Department of Chemistry and Biochemistry University of California, Los Angeles Los Angeles CA 90095 USA
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14
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Deng J, Lin SC, Fuller JT, Zandkarimi B, Chen HM, Alexandrova AN, Liu C. Electrocatalytic Methane Functionalization with d 0 Early Transition Metals Under Ambient Conditions. Angew Chem Int Ed Engl 2021; 60:26630-26638. [PMID: 34606678 DOI: 10.1002/anie.202107720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 11/09/2022]
Abstract
The undesirable loss of methane (CH4 ) at remote locations welcomes approaches that ambiently functionalize CH4 on-site without intense infrastructure investment. Recently, we found that electrochemical oxidation of vanadium(V)-oxo with bisulfate ligand leads to CH4 activation at ambient conditions. The key question is whether such an observation is a one-off coincidence or a general strategy for electrocatalyst design. Here, a general scheme of electrocatalytic CH4 activation with d0 early transition metals is established. The pre-catalysts' molecular structure, electrocatalytic kinetics, and mechanism were detailed for titanium (IV), vanadium (V), and chromium (VI) species as model systems. After a turnover-limiting one-electron electrochemical oxidation, the yielded ligand-centered cation radicals activate CH4 with low activation energy and high selectivity. The reactivities are universal among early transition metals from Period 4 to 6, and the reactivities trend for different early transition metals correlate with their d orbital energies across periodic table. Our results offer new chemical insights towards developing advanced ambient electrocatalysts of natural gas.
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Affiliation(s)
- Jiao Deng
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Sheng-Chih Lin
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan
| | - Jack T Fuller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Borna Zandkarimi
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Hao Ming Chen
- Department of Chemistry, National (Taiwan) University, Taipei, 10617, Taiwan
| | - Anastassia N Alexandrova
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA.,California NanoSystems Institute, Los Angeles, CA, 90095, USA
| | - Chong Liu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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15
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Abstract
Methane has been reported to be directly converted into value-added products through various methods. Among them, photoelectrochemical (PEC) methane conversion is considered an eco-friendly method because it utilizes solar light and is able to control the selectivity to different products by means of application of an external bias. Recently, some PEC methane conversion systems have been reported, but their performance efficiencies are relatively lower than those of other existing thermal, photocatalytic, and electrochemical systems. The detailed mechanism of methane activation is not clear at this stage. In this review, various catalytic materials and their roles in the reaction pathways are summarized and discussed. Furthermore, promising semiconductor materials, co-catalysts, and oxidants have also been proposed. Finally, direct and indirect pathways in the design of the PEC methane conversion system have been discussed.
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16
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Xiang D, Iñiguez JA, Deng J, Guan X, Martinez A, Liu C. Ag
II
‐Mediated Electrocatalytic Ambient CH
4
Functionalization Inspired by HSAB Theory. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Danlei Xiang
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
| | - Jesus A. Iñiguez
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
| | - Jiao Deng
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
| | - Xun Guan
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
| | - Antonio Martinez
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
| | - Chong Liu
- Department of Chemistry and Biochemistry University of California Los Angeles Los Angeles CA 90095 USA
- California NanoSystems Institute University of California Los Angeles Los Angeles CA 90095 USA
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17
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Khenkin AM, Herman A, Haviv E, Neumann R. Electrocatalytic Oxyesterification of Hydrocarbons by Tetravalent Lead. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander M. Khenkin
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Adi Herman
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Eynat Haviv
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ronny Neumann
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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18
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Xiang D, Iñiguez JA, Deng J, Guan X, Martinez A, Liu C. Ag II -Mediated Electrocatalytic Ambient CH 4 Functionalization Inspired by HSAB Theory. Angew Chem Int Ed Engl 2021; 60:18152-18161. [PMID: 34107154 DOI: 10.1002/anie.202104217] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/25/2021] [Indexed: 11/07/2022]
Abstract
Although most class (b) transition metals have been studied in regard to CH4 activation, divalent silver (AgII ), possibly owing to its reactive nature, is the only class (b) high-valent transition metal center that is not yet reported to exhibit reactivities towards CH4 activation. We now report that electrochemically generated AgII metalloradical readily functionalizes CH4 into methyl bisulfate (CH3 OSO3 H) at ambient conditions in 98 % H2 SO4 . Mechanistic investigation experimentally unveils a low activation energy of 13.1 kcal mol-1 , a high pseudo-first-order rate constant of CH4 activation up to 2.8×103 h-1 at room temperature and a CH4 pressure of 85 psi, and two competing reaction pathways preferable towards CH4 activation over solvent oxidation. Reaction kinetic data suggest a Faradaic efficiency exceeding 99 % beyond 180 psi CH4 at room temperature for potential chemical production from widely distributed natural gas resources with minimal infrastructure reliance.
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Affiliation(s)
- Danlei Xiang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Jesus A Iñiguez
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Jiao Deng
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Xun Guan
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Antonio Martinez
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Chong Liu
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, 90095, USA.,California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA, 90095, USA
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19
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Wang Q, Li T, Yang C, Chen M, Guan A, Yang L, Li S, Lv X, Wang Y, Zheng G. Electrocatalytic Methane Oxidation Greatly Promoted by Chlorine Intermediates. Angew Chem Int Ed Engl 2021; 60:17398-17403. [PMID: 34060206 DOI: 10.1002/anie.202105523] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 11/05/2022]
Abstract
Renewable energy-powered methane (CH4 ) conversion at ambient conditions is an attractive but highly challenging field. Due to the highly inert character of CH4 , the selective cleavage of its first C-H bond without over-oxidation is essential for transforming CH4 into value-added products. In this work, we developed an efficient and selective CH4 conversion approach at room temperature using intermediate chlorine species (*Cl), which were electrochemically generated and stabilized on mixed cobalt-nickel spinels with different Co/Ni ratios. The lower overpotentials for *Cl formation enabled an effective activation and conversion of CH4 to CH3 Cl without over-oxidation to CO2 , and Ni3+ at the octahedral sites in the mixed cobalt-nickel spinels allowed to stabilize surface-bound *Cl species. The CoNi2 Ox electrocatalyst exhibited an outstanding yield of CH3 Cl (364 mmol g-1 h-1 ) and a high CH3 Cl/CO2 selectivity of over 400 at room temperature, with demonstrated capability of direct CH4 conversion under seawater working conditions.
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Affiliation(s)
- Qihao Wang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Tengfei Li
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Chao Yang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Menghuan Chen
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Anxiang Guan
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Li Yang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Si Li
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Ximeng Lv
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Yuhang Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Gengfeng Zheng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
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20
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Wang Q, Li T, Yang C, Chen M, Guan A, Yang L, Li S, Lv X, Wang Y, Zheng G. Electrocatalytic Methane Oxidation Greatly Promoted by Chlorine Intermediates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qihao Wang
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Tengfei Li
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Chao Yang
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Menghuan Chen
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Anxiang Guan
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Li Yang
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Si Li
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Ximeng Lv
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
| | - Yuhang Wang
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Gengfeng Zheng
- Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Faculty of Chemistry and Materials Science Fudan University Shanghai 200438 China
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21
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Novaes LFT, Liu J, Shen Y, Lu L, Meinhardt JM, Lin S. Electrocatalysis as an enabling technology for organic synthesis. Chem Soc Rev 2021; 50:7941-8002. [PMID: 34060564 PMCID: PMC8294342 DOI: 10.1039/d1cs00223f] [Citation(s) in RCA: 377] [Impact Index Per Article: 125.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Electrochemistry has recently gained increased attention as a versatile strategy for achieving challenging transformations at the forefront of synthetic organic chemistry. Electrochemistry's unique ability to generate highly reactive radical and radical ion intermediates in a controlled fashion under mild conditions has inspired the development of a number of new electrochemical methodologies for the preparation of valuable chemical motifs. Particularly, recent developments in electrosynthesis have featured an increased use of redox-active electrocatalysts to further enhance control over the selective formation and downstream reactivity of these reactive intermediates. Furthermore, electrocatalytic mediators enable synthetic transformations to proceed in a manner that is mechanistically distinct from purely chemical methods, allowing for the subversion of kinetic and thermodynamic obstacles encountered in conventional organic synthesis. This review highlights key innovations within the past decade in the area of synthetic electrocatalysis, with emphasis on the mechanisms and catalyst design principles underpinning these advancements. A host of oxidative and reductive electrocatalytic methodologies are discussed and are grouped according to the classification of the synthetic transformation and the nature of the electrocatalyst.
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Affiliation(s)
- Luiz F T Novaes
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.
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22
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Tomboc GM, Park Y, Lee K, Jin K. Directing transition metal-based oxygen-functionalization catalysis. Chem Sci 2021; 12:8967-8995. [PMID: 34276926 PMCID: PMC8261717 DOI: 10.1039/d1sc01272j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/07/2021] [Indexed: 11/21/2022] Open
Abstract
This review presents the recent progress of oxygen functionalization reactions based on non-electrochemical (conventional organic synthesis) and electrochemical methods. Although both methods have their advantages and limitations, the former approach has been used to synthesize a broader range of organic substances as the latter is limited by several factors, such as poor selectivity and high energy cost. However, because electrochemical methods can replace harmful terminal oxidizers with external voltage, organic electrosynthesis has emerged as greener and more eco-friendly compared to conventional organic synthesis. The progress of electrochemical methods toward oxygen functionalization is presented by an in-depth discussion of different types of electrically driven-chemical organic synthesis, with particular attention to recently developed electrochemical systems and catalyst designs. We hope to direct the attention of readers to the latest breakthroughs of traditional oxygen functionalization reactions and to the potential of electrochemistry for the transformation of organic substrates to useful end products.
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Affiliation(s)
- Gracita M Tomboc
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Yeji Park
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Kyoungsuk Jin
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
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23
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Yang Q, Wang YH, Qiao Y, Gau M, Carroll PJ, Walsh PJ, Schelter EJ. Photocatalytic C-H activation and the subtle role of chlorine radical complexation in reactivity. Science 2021; 372:847-852. [PMID: 34016778 DOI: 10.1126/science.abd8408] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 01/14/2021] [Accepted: 04/13/2021] [Indexed: 12/24/2022]
Abstract
The functionalization of methane, ethane, and other alkanes derived from fossil fuels is a central goal in the chemical enterprise. Recently, a photocatalytic system comprising [CeIVCl5(OR)]2- [CeIV, cerium(IV); OR, -OCH3 or -OCCl2CH3] was disclosed. The system was reportedly capable of alkane activation by alkoxy radicals (RO•) formed by CeIV-OR bond photolysis. In this work, we present evidence that the reported carbon-hydrogen (C-H) activation of alkanes is instead mediated by the photocatalyst [NEt4]2[CeCl6] (NEt4 +, tetraethylammonium), and RO• are not intermediates. Spectroscopic analyses and kinetics were investigated for C-H activation to identify chlorine radical (Cl•) generation as the rate-limiting step. Density functional theory calculations support the formation of [Cl•][alcohol] adducts when alcohols are present, which can manifest a masked RO• character. This result serves as an important cautionary note for interpretation of radical trapping experiments.
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Affiliation(s)
- Qiaomu Yang
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA
| | - Yu-Heng Wang
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA
| | - Yusen Qiao
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA
| | - Michael Gau
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA
| | - Patrick J Carroll
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA
| | - Patrick J Walsh
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA.
| | - Eric J Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104, USA.
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24
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Zhang Y, Li J, Kornienko N. Towards atomic precision in HMF and methane oxidation electrocatalysts. Chem Commun (Camb) 2021; 57:4230-4238. [PMID: 33861272 DOI: 10.1039/d1cc01155c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
With the increasing emphasis on transitioning to a sustainable society, electrosynthetic routes to generate fuels and chemicals are rapidly gaining traction. While the electrolysis of water and CO2 has been heavily investigated over the last decade, electrocatalysis of other abundant resources such as biomass and methane is now increasingly coming into focus. As this area is relatively less mature, much work remains to be done. In particular, efforts to decipher reaction mechanisms and extract the fundamental insights are necessary to develop economically competitive electrosynthetic routes using biomass and methane. Against this backdrop, this feature article focuses on the recent developments within the community using atomically precise catalysts, both homogeneous and heterogeneous, as model systems to understand these reactions.
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Affiliation(s)
- Yuxuan Zhang
- Department of Chemistry, Université de Montréal, 1375 Ave. Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3, Canada.
| | - Junnan Li
- Department of Chemistry, Université de Montréal, 1375 Ave. Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3, Canada.
| | - Nikolay Kornienko
- Department of Chemistry, Université de Montréal, 1375 Ave. Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3, Canada.
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25
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Sinha S, Mirica LM. Electrocatalytic O 2 Reduction by an Organometallic Pd(III) Complex via a Binuclear Pd(III) Intermediate. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05726] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Soumalya Sinha
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Liviu M. Mirica
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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26
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Zhang H, Li C, Lu Q, Cheng MJ, Goddard WA. Selective Activation of Propane Using Intermediates Generated during Water Oxidation. J Am Chem Soc 2021; 143:3967-3974. [PMID: 33667083 DOI: 10.1021/jacs.1c00377] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electrochemical conversion of light alkanes to high-value oxygenates provides an attractive avenue for eco-friendly utilization of these hydrocarbons. However, such conversion under ambient conditions remains exceptionally challenging due to the high energy barrier of C-H bond cleavage. Herein, we investigated theoretically the partial oxidation of propane on a series of single atom alloys by using active intermediates generated during water oxidation as the oxidant. We show that by controlling the potential and pH, stable surface oxygen atoms can be maintained under water oxidation conditions. The free energy barrier for C-H bond cleavage by the surface oxygen can be as small as 0.54 eV, which can be surmounted easily at room temperature. Our calculations identified three promising surfaces as effective propane oxidation catalysts. Our complementary experiments demonstrated the partial oxidation of propane to acetone on Ni-doped Au surfaces. We also investigated computationally the steps leading to acetone formation. These studies show that the concept of exploiting intermediates generated in water oxidation as oxidants provides a fruitful strategy for electrocatalyst design to efficiently convert hydrocarbons into value-added chemicals.
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Affiliation(s)
- Haochen Zhang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Chunsong Li
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Qi Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Mu-Jeng Cheng
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - William A Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
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27
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Huffman BL, Lee KJ, Geer AM, McKeown BA, Jia X, Dickie DA, Gunnoe TB, Dempsey JL. Role of Axial Ligation in Gating the Reactivity of Dimethylplatinum(III) Diimine Radical Cations. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brittany L. Huffman
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Katherine J. Lee
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Ana M. Geer
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Bradley A. McKeown
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Xiaofan Jia
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Jillian L. Dempsey
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
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28
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Abdelkader Mohamed AG, Zahra Naqviab SA, Wang Y. Advances and Fundamental Understanding of Electrocatalytic Methane Oxidation. ChemCatChem 2021. [DOI: 10.1002/cctc.202001412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Aya Gomaa Abdelkader Mohamed
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Syeda Andleeb Zahra Naqviab
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yaobing Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
- Dalian National Laboratory for Clean Energy Dalian 116023 P. R. China
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29
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Erchinger JE, Gemmeren M. Electrochemical Methods for Pd‐catalyzed C−H Functionalization. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Johannes E. Erchinger
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Manuel Gemmeren
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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30
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Kim RS, Wegener EC, Yang MC, O'Reilly ME, Oh S, Hendon CH, Miller JT, Surendranath Y. Rapid Electrochemical Methane Functionalization Involves Pd-Pd Bonded Intermediates. J Am Chem Soc 2020; 142:20631-20639. [PMID: 33231440 DOI: 10.1021/jacs.0c05894] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
High-valent Pd complexes are potent agents for the oxidative functionalization of inert C-H bonds, and it was previously shown that rapid electrocatalytic methane monofunctionalization could be achieved by electro-oxidation of PdII to a critical dinuclear PdIII intermediate in concentrated or fuming sulfuric acid. However, the structure of this highly reactive, unisolable intermediate, as well as the structural basis for its mechanism of electrochemical formation, remained elusive. Herein, we use X-ray absorption and Raman spectroscopies to assemble a structural model of the potent methane-activating intermediate as a PdIII dimer with a Pd-Pd bond and a 5-fold O atom coordination by HxSO4(x-2) ligands at each Pd center. We further use EPR spectroscopy to identify a mixed-valent M-M bonded Pd2II,III species as a key intermediate during the PdII-to-PdIII2 oxidation. Combining EPR and electrochemical data, we quantify the free energy of Pd dimerization as <-4.5 kcal/mol for Pd2II,III and <-9.1 kcal/mol for PdIII2. The structural and thermochemical data suggest that the aggregate effect of metal-metal and axial metal-ligand bond formation drives the critical Pd dimerization reaction in between electrochemical oxidation steps. This work establishes a structural basis for the facile electrochemical oxidation of PdII to a M-M bonded PdIII dimer and provides a foundation for understanding its rapid methane functionalization reactivity.
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Affiliation(s)
- R Soyoung Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Evan C Wegener
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Min Chieh Yang
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Matthew E O'Reilly
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Seokjoon Oh
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher H Hendon
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Jeffrey T Miller
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Yogesh Surendranath
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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31
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Kim RS, Nazemi A, Cundari TR, Surendranath Y. A PdIII Sulfate Dimer Initiates Rapid Methane Monofunctionalization by H Atom Abstraction. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03844] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Soyoung Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Azadeh Nazemi
- Department of Chemistry, CASCaM, University of North Texas, Denton, Texas 76203, United States
| | - Thomas R. Cundari
- Department of Chemistry, CASCaM, University of North Texas, Denton, Texas 76203, United States
| | - Yogesh Surendranath
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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32
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Deimel PS, Aguilar PC, Paszkiewicz M, Duncan DA, Barth JV, Klappenberger F, Schöfberger W, Allegretti F. Stabilisation of tri-valent ions with a vacant coordination site at a corrole-metal interface. Chem Commun (Camb) 2020; 56:11219-11222. [PMID: 32818220 DOI: 10.1039/d0cc03947k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By exploiting an established on-surface metallation strategy, we address the ability of the corrolic macrocycle to stabilise transition metal ions in high-valent (III) oxidation states in metal-supported molecular layers. This approach offers a route to engineer adsorbed metal complexes that cannot be easily fabricated by organic synthesis methods and bear a vacant axial coordination site for catalytic conversions.
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Affiliation(s)
- P S Deimel
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
| | - P Casado Aguilar
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
| | - M Paszkiewicz
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
| | - D A Duncan
- Physics Department, Technical University of Munich, D-85748 Garching, Germany. and Diamond Light Source, Harwell Campus, Didcot, OX11 0QX, UK
| | - J V Barth
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
| | - F Klappenberger
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
| | - W Schöfberger
- Institute of Organic Chemistry, Johannes Kepler University, Linz, Austria
| | - F Allegretti
- Physics Department, Technical University of Munich, D-85748 Garching, Germany.
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33
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Ambient methane functionalization initiated by electrochemical oxidation of a vanadium (V)-oxo dimer. Nat Commun 2020; 11:3686. [PMID: 32703955 PMCID: PMC7378254 DOI: 10.1038/s41467-020-17494-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/01/2020] [Indexed: 11/25/2022] Open
Abstract
The abundant yet widely distributed methane resources require efficient conversion of methane into liquid chemicals, whereas an ambient selective process with minimal infrastructure support remains to be demonstrated. Here we report selective electrochemical oxidation of CH4 to methyl bisulfate (CH3OSO3H) at ambient pressure and room temperature with a molecular catalyst of vanadium (V)-oxo dimer. This water-tolerant, earth-abundant catalyst possesses a low activation energy (10.8 kcal mol‒1) and a high turnover frequency (483 and 1336 hr−1 at 1-bar and 3-bar pure CH4, respectively). The catalytic system electrochemically converts natural gas mixture into liquid products under ambient conditions over 240 h with a Faradaic efficiency of 90% and turnover numbers exceeding 100,000. This tentatively proposed mechanism is applicable to other d0 early transition metal species and represents a new scalable approach that helps mitigate the flaring or direct emission of natural gas at remote locations. The undesirable geological release of methane at remote locations can be lessened through an efficient methane conversion process. Here, the authors report selective ambient functionalization of methane by a vanadium (V)-oxo electrocatalyst with a low activation energy and a high turnover frequency.
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34
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Tang HX, Zhuo C, Zhang YX, Shui QR, Fu RB, Ma ZJ, Wu XT. A xCe 9(IO 3) 36 (A = K, La): the effects of a change in the intermediate valence on the second-harmonic generation response. Dalton Trans 2020; 49:3672-3675. [PMID: 31657402 DOI: 10.1039/c9dt03628h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new isostructural non-centrosymmetric cerium iodates KxCe9(IO3)36 (x≈ 3) and LaxCe9(IO3)36 (x≈ 0.3) were synthesized via a hydrothermal method and systematically characterized. They are intermediate valence compounds with the same band gap, showing similar microscopic net dipole moments per unit volume, but different macroscopic second-harmonic generation (SHG) responses under 1064 nm laser irradiation. This research gives a new view for understanding the effects of electronic structure on the SHG response.
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Affiliation(s)
- Hong-Xin Tang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
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35
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Chang CC, Liu CY, Sun YC. Effective methane conversion to methanol on bi-functional graphene-oxide-supported platinum nanoclusters (Pt 5) - a DFT study. Phys Chem Chem Phys 2020; 22:4967-4973. [PMID: 32073010 DOI: 10.1039/c9cp06002b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nowadays identifying a high-performance catalyst for converting methane to methanol is crucial because methanol serves as an excellent energy source and has wide chemical applications. In the present study, we used DFT, a computational chemistry method, to investigate the reaction mechanism of methanol production by conversion of methane on Pt5 nanoparticles supported on graphene oxide (GO) substrates. Computational results predicted that the Pt5/GO system exhibits excellent catalysis efficiency, compared with those of the previously examined Pt2/GO and Pt2O2/GO systems. Energetics of examined molecular species and the reaction mechanism showed that the Pt5/GO system exhibits high stability in this catalysis reaction and catalyzes the reaction efficiently. Moreover, between the two investigated surfaces GO and UGO, GO performed better and should be a promising catalyst support to convert methane into methanol.
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Affiliation(s)
- Chun-Chih Chang
- Department of Chemical and Materials Engineering, Chinese Culture University, No. 55, Hwa-Kang Road, Yang-Ming-Shan, Taipei 11114, Taiwan.
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36
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Ma HB, Sheng T, Yu WS, Ye JY, Wan LY, Tian N, Sun SG, Zhou ZY. High Catalytic Activity of Pt(100) for CH4 Electrochemical Conversion. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02738] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Hai-Bin Ma
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Wen-Song Yu
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jin-Yu Ye
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Li-Yang Wan
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Na Tian
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shi-Gang Sun
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi-You Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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37
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Natinsky B, Lu S, Copeland ED, Quintana JC, Liu C. Solution Catalytic Cycle of Incompatible Steps for Ambient Air Oxidation of Methane to Methanol. ACS CENTRAL SCIENCE 2019; 5:1584-1590. [PMID: 31572785 PMCID: PMC6764157 DOI: 10.1021/acscentsci.9b00625] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Indexed: 06/10/2023]
Abstract
Direct chemical synthesis from methane and air under ambient conditions is attractive yet challenging. Low-valent organometallic compounds are known to activate methane, but their electron-rich nature seems incompatible with O2 and prevents catalytic air oxidation. We report selective oxidation of methane to methanol with an O2-sensitive metalloradical as the catalyst and air as the oxidant at room temperature and ambient pressure. The incompatibility between C-H activation and O2 oxidation is reconciled by electrochemistry and nanomaterials, with which a concentration gradient of O2 within the nanowire array spatially segregated incompatible steps in the catalytic cycle. An unexpected 220 000-fold increase of the apparent reaction rate constants within the nanowire array leads to a turnover number up to 52 000 within 24 h. The synergy between nanomaterials and organometallic chemistry warrants a new catalytic route for CH4 functionalization.
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38
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39
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Boyd MJ, Latimer AA, Dickens CF, Nielander AC, Hahn C, Nørskov JK, Higgins DC, Jaramillo TF. Electro-Oxidation of Methane on Platinum under Ambient Conditions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01207] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael J. Boyd
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Allegra A. Latimer
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Colin F. Dickens
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Adam C. Nielander
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Christopher Hahn
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jens K. Nørskov
- Surface Physics and Catalysis, Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Drew C. Higgins
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada L8S 4L7
| | - Thomas F. Jaramillo
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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40
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Kim RS, Surendranath Y. Electrochemical Reoxidation Enables Continuous Methane-to-Methanol Catalysis with Aqueous Pt Salts. ACS CENTRAL SCIENCE 2019; 5:1179-1186. [PMID: 31403070 PMCID: PMC6661865 DOI: 10.1021/acscentsci.9b00273] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 05/31/2023]
Abstract
The direct conversion of methane to methanol would enable better utilization of abundant natural gas resources. In the presence of stoichiometric PtIV oxidants, PtII ions are capable of catalyzing this reaction in aqueous solutions at modest temperatures. Practical implementation of this chemistry requires a viable strategy for replacing or regenerating the expensive PtIV oxidant. Herein, we establish an electrochemical strategy for continuous regeneration of the PtIV oxidant to furnish overall electrochemical methane oxidation. We show that Cl-adsorbed Pt electrodes catalyze facile oxidation of PtII to PtIV at low overpotential without concomitant methanol oxidation. Exploiting this facile electrochemistry, we maintain the PtII/IV ratio during PtII-catalyzed methane oxidation via in situ monitoring of the solution potential coupled with dynamic modulation of the electric current. This approach leads to sustained methane oxidation catalysis with 70% selectivity for methanol.
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41
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Akhmedov MA, Khidirov SS. Anodic Processes at Smooth Platinum Electrode in Concentrated Solution of Methanesulfonic Acid. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519060028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Wang CH, Gao WY, Ma Q, Powers DC. Templating metastable Pd 2 carboxylate aggregates. Chem Sci 2019; 10:1823-1830. [PMID: 30842850 PMCID: PMC6369442 DOI: 10.1039/c8sc04940h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/24/2018] [Indexed: 01/22/2023] Open
Abstract
Evaluation of the potential for metal-metal (M-M) cooperation to enable catalysis requires access to specific polynuclear aggregates that display appropriate geometry and size. In many cases, exerting synthetic control over the aggregation of simple metal salts is a challenge. For example, Pd(ii) acetate self assembles as a trimer (i.e. Pd3(OAc)6) both in the solid state and in solution and does not feature close Pd-Pd interactions. Related carboxylate-supported Pd2 aggregates (i.e. Pd2(OAc)4), which would feature close Pd-Pd interactions, are thermodynamically metastable in solution phase and thus largely unavailable. Here we demonstrate ion metathesis within pre-formed metal-organic frameworks (MOFs) to prepare metastable Pd2 tetracarboxylates sites. The newly synthesized materials are characterized by elemental analysis, PXRD, SCXRD, EXAFS, XANES, and gas adsorption analysis. In addition, the critical role of network solvation on the kinetics of ion metathesis was revealed by coupled TGA-MS and ICP-MS experiments. The demonstration of templated ion metathesis to generate specific metastable coordination sites that are inaccessible in solution phase chemistry represents a new opportunity to interrogate the chemistry of specific polynuclear metal aggregates.
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Affiliation(s)
- Chen-Hao Wang
- Texas A&M University , Department of Chemistry , College Station , TX 77843 , USA .
| | - Wen-Yang Gao
- Texas A&M University , Department of Chemistry , College Station , TX 77843 , USA .
| | - Qing Ma
- DND-CAT , Northwestern Synchrotron Research Centre at the Advanced Photon Source , Argonne , IL 60439 , USA
| | - David C Powers
- Texas A&M University , Department of Chemistry , College Station , TX 77843 , USA .
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43
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Electrocatalytic Shilov chemistry for the oxidation of aliphatic groups. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Dinh KT, Sullivan MM, Serna P, Meyer RJ, Dincă M, Román-Leshkov Y. Viewpoint on the Partial Oxidation of Methane to Methanol Using Cu- and Fe-Exchanged Zeolites. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01180] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kimberly T. Dinh
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Mark M. Sullivan
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Pedro Serna
- ExxonMobil Research and Engineering, Annandale, New Jersey 08801, United States
| | - Randall J. Meyer
- ExxonMobil Research and Engineering, Annandale, New Jersey 08801, United States
| | - Mircea Dincă
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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45
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Ma C, Fang P, Mei TS. Recent Advances in C–H Functionalization Using Electrochemical Transition Metal Catalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01697] [Citation(s) in RCA: 351] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Cong Ma
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Ping Fang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Tian-Sheng Mei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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46
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Li W, He D, Hu G, Li X, Banerjee G, Li J, Lee SH, Dong Q, Gao T, Brudvig GW, Waegele MM, Jiang DE, Wang D. Selective CO Production by Photoelectrochemical Methane Oxidation on TiO 2. ACS CENTRAL SCIENCE 2018; 4:631-637. [PMID: 29806010 PMCID: PMC5968511 DOI: 10.1021/acscentsci.8b00130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 05/24/2023]
Abstract
The inertness of the C-H bond in CH4 poses significant challenges to selective CH4 oxidation, which often proceeds all the way to CO2 once activated. Selective oxidation of CH4 to high-value industrial chemicals such as CO or CH3OH remains a challenge. Presently, the main methods to activate CH4 oxidation include thermochemical, electrochemical, and photocatalytic reactions. Of them, photocatalytic reactions hold great promise for practical applications but have been poorly studied. Existing demonstrations of photocatalytic CH4 oxidation exhibit limited control over the product selectivity, with CO2 as the most common product. The yield of CO or other hydrocarbons is too low to be of any practical value. In this work, we show that highly selective production of CO by CH4 oxidation can be achieved by a photoelectrochemical (PEC) approach. Under our experimental conditions, the highest yield for CO production was 81.9%. The substrate we used was TiO2 grown by atomic layer deposition (ALD), which features high concentrations of Ti3+ species. The selectivity toward CO was found to be highly sensitive to the substrate types, with significantly lower yield on P25 or commercial anatase TiO2 substrates. Moreover, our results revealed that the selectivity toward CO also depends on the applied potentials. Based on the experimental results, we proposed a reaction mechanism that involves synergistic effects by adjacent Ti sites on TiO2. Spectroscopic characterization and computational studies provide critical evidence to support the mechanism. Furthermore, the synergistic effect was found to parallel heterogeneous CO2 reduction mechanisms. Our results not only present a new route to selective CH4 oxidation, but also highlight the importance of mechanistic understandings in advancing heterogeneous catalysis.
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Affiliation(s)
- Wei Li
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Da He
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Guoxiang Hu
- Department
of Chemistry, University of California, Riverside, California 92521, United States
| | - Xiang Li
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Gourab Banerjee
- Department
of Chemistry and Yale Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Jingyi Li
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Shin Hee Lee
- Department
of Chemistry and Yale Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Qi Dong
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Tianyue Gao
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - Gary W. Brudvig
- Department
of Chemistry and Yale Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Matthias M. Waegele
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
| | - De-en Jiang
- Department
of Chemistry, University of California, Riverside, California 92521, United States
| | - Dunwei Wang
- Department
of Chemistry, Merkert Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
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47
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Bugnola M, Carmieli R, Neumann R. Aerobic Electrochemical Oxygenation of Light Hydrocarbons Catalyzed by an Iron–Tungsten Oxide Molecular Capsule. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00477] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Marco Bugnola
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Raanan Carmieli
- Department for Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ronny Neumann
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
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48
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Lee KJ, Dempsey JL. When Electrochemistry Met Methane: Rapid Catalyst Oxidation Fuels Hydrocarbon Functionalization. ACS CENTRAL SCIENCE 2017; 3:1137-1139. [PMID: 29202014 PMCID: PMC5704291 DOI: 10.1021/acscentsci.7b00469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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