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Chen YZ, Fan YW, Wang Y, Li Z. Anchoring Ultrafine β-Mo 2C Clusters Inside Porous Co-NC Using MOFs for Electric-Powered Coproduction of Valuable Chemicals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401226. [PMID: 38511543 DOI: 10.1002/smll.202401226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Electroredox of organics provides a promising and green approach to producing value-added chemicals. However, it remains a grand challenge to achieve high selectivity of desired products simultaneously at two electrodes, especially for non-isoelectronic transfer reactions. Here a porous heterostructure of Mo2C@Co-NC is successfully fabricated, where subnanometre β-Mo2C clusters (<1 nm, ≈10 wt%) are confined inside porous Co, N-doped carbon using metalorganic frameworks. It is found that Co species not only promote the formation of β-Mo2C but also can prevent it from oxidation by constructing the heterojunctions. As noted, the heterostructure achieves >96% yield and 92% Faradaic efficiency (FE) for aldehydes in anodic alcohol oxidation, as well as >99.9% yield and 96% FE for amines in cathodal nitrocompounds reduction in 1.0 M KOH. Precise control of the reaction kinetics of two half-reactions by the electronic interaction between β-Mo2C and Co is a crucial adjective. Density functional theory (DFT) gives in-depth mechanistic insight into the high aldehyde selectivity. The work guides authors to reveal the electrooxidation nature of Mo2C at a subnanometer level. It is anticipated that the strategy will provide new insights into the design of highly effective bifunctional electrocatalysts for the coproduction of more complex fine chemicals.
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Affiliation(s)
- Yu-Zhen Chen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, P. R. China
| | - Yi-Wen Fan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, P. R. China
| | - Yang Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, P. R. China
| | - Zhibo Li
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, P. R. China
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2
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Singh B, Gupta H. Metal-organic frameworks (MOFs) for hybrid water electrolysis: structure-property-performance correlation. Chem Commun (Camb) 2024; 60:8020-8038. [PMID: 38994743 DOI: 10.1039/d4cc02729a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Hybrid water electrolysis (HWE) is a promising pathway for the simultaneous production of high-value chemicals and clean H2 fuel. Unlike conventional electrochemical water splitting, which relies on the oxygen evolution reaction (OER), HWE involves the anodic oxidation reaction (AOR). The AORs facilitate the conversion of organic or inorganic compounds at the anode into valuable chemicals, while the cathode carries out the hydrogen evolution reaction (HER) to produce H2. Recent literature has witnessed a surge in papers investigating various AORs with organic and inorganic substrates using a series of transition metal-based catalysts. Over the past two decades, metal-organic frameworks (MOFs) have garnered significant attention for their exceptional performance in electrochemical water splitting. These catalysts possess distinct attributes such as highly porous architectures, customizable morphologies, open facets, high electrochemical surface areas, improved electron transport, and accessible catalytic sites. While MOFs have demonstrated efficiency in electrochemical water splitting, their application in hybrid water electrolysis has only recently been explored. In recent years, a series of articles have been published; yet there is no comprehensive article summarizing MOFs for hybrid water electrolysis. This article aims to fill this gap by delving into the recent progress in MOFs specifically tailored for hybrid water electrolysis. In this article, we systematically discuss the structure-property-performance relationships of various MOFs utilized in hybrid water electrolysis, supported by pioneering examples. We explore how the structure, morphology, and electronic properties of MOFs impact their performance in hybrid water electrolysis, with particular emphasis on value-added chemical generation, H2 production, potential improvement, conversion efficiency, selectivity, faradaic efficiency, and their potential for industrial-scale applications. Furthermore, we address future advancements and challenges in this field, providing insights into the prospects and challenges associated with the continued development and deployment of MOFs for hybrid water electrolysis.
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Affiliation(s)
- Baghendra Singh
- Southern Laboratories - 208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India.
| | - Harshit Gupta
- Department of Chemistry, University of Delhi, Delhi-110007, India
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3
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Patra T, Arepally S, Seitz J, Wirth T. Electrocatalytic continuous flow chlorinations with iodine(I/III) mediators. Nat Commun 2024; 15:6329. [PMID: 39068163 PMCID: PMC11283512 DOI: 10.1038/s41467-024-50643-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 07/17/2024] [Indexed: 07/30/2024] Open
Abstract
Electrochemistry offers tunable, cost effective and environmentally friendly alternatives to carry out redox reactions with electrons as traceless reagents. The use of organoiodine compounds as electrocatalysts is largely underdeveloped, despite their widespread application as powerful and versatile reagents. Mechanistic data reveal that the hexafluoroisopropanol assisted iodoarene oxidation is followed by a stepwise chloride ligand exchange for the catalytic generation of the dichloroiodoarene mediator. Here, we report an environmentally benign iodine(I/III) electrocatalytic platform for the in situ generation of dichloroiodoarenes for different reactions such as mono- and dichlorinations as well as chlorocyclisations within a continuous flow setup.
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Affiliation(s)
- Tuhin Patra
- School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, Cymru/Wales, UK
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha, India
| | - Sagar Arepally
- School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, Cymru/Wales, UK
| | - Jakob Seitz
- School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, Cymru/Wales, UK
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, Cymru/Wales, UK.
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4
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White NM, Waldie KM. Electrocatalytic formate and alcohol oxidation by hydride transfer at first-row transition metal complexes. Dalton Trans 2024; 53:11644-11654. [PMID: 38896286 DOI: 10.1039/d3dt04304e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The electrocatalytic oxidation of carbon-based liquid fuels, such as formic acid and alcohols, has important applications for our renewable energy transition. Molecular electrocatalysts based on transition metal complexes provide the opportunity to explore the interplay between precise catalyst design and electrocatalytic activity. Recent advances have seen the development of first-row transition metal electrocatalysts for these transformations that operate via hydride transfer between the substrate and catalyst. In this Frontier article, we present the key contributions to this field and discuss the proposed mechanisms for each case. These studies also reveal the remaining challenges for formate and alcohol oxidation with first-row transition metal systems, for which we provide perspectives on future directions for next-generation electrocatalyst design.
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Affiliation(s)
- Navar M White
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Kate M Waldie
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
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5
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Lv C, Chen L, Bai J, Ruo H, Pan Y, Xu S, Chen J, Zhang D, Guo C. Ni-Co hexacyanoferrate hollow nanoprism with CN vacancy for electrocatalytic benzyl alcohol oxidation. Chem Commun (Camb) 2024; 60:5952-5955. [PMID: 38764428 DOI: 10.1039/d4cc01606h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
An innovative method to improve the oxidation efficiency of benzyl alcohol utilizes Ni-Co hexacyanoferrate hollow nanoprisms. Synthesized via a gentle self-sacrificial template method, this catalyst exhibits substantial catalytic activity and selectivity towards benzyl alcohol oxidation, facilitated by the strategic incorporation of Co to modulate CN vacancy density. Impressively, it achieves a current density of 10 mA cm-2 at 1.33 V and a remarkable 98% efficiency in benzyl alcohol conversion at 1.4 V.
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Affiliation(s)
- Chenghang Lv
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Liang Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Jingjing Bai
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Hongyu Ruo
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Yanlong Pan
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Shoudong Xu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Jiaqi Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Ding Zhang
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Chunli Guo
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
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6
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Xu J, Huang BB, Lai CM, Lu YS, Shao JW. Advancements in the synthesis of carbon dots and their application in biomedicine. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 255:112920. [PMID: 38669742 DOI: 10.1016/j.jphotobiol.2024.112920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/09/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
As a sort of fluorescent carbon nanomaterial with a particle size of less than 10 nm, carbon dots (CDs) have their own merits of good dispersibility in water, stable optical properties, strong chemical inertness, stable optical properties, and good biosecurity. These excellent peculiarities facilitated them like sensing, imaging, medicine, catalysis, and optoelectronics, making them a new star in the field of nanotechnology. In particular, the development of CDs in the fields of chemical probes, imaging, cancer therapy, antibacterial and drug delivery has become a hot topic in current research. Although the biomedical applications in CDs have been demonstrated in many research articles, a systematic summary of their role in biomedical applications is scarce. In this review, we introduced the basic information of CDs in detail, including synthesis approaches of CDs as well as their favorable properties including photoluminescence and low cytotoxicity. Subsequently, the application of CDs in the field of biomedicine was emphasized. Finally, the main challenges and research prospects of CDs in this field were proposed, which might provide some detailed information in designing new CDs in this promising biomedical field.
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Affiliation(s)
- Jia Xu
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Bing-Bing Huang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Chun-Mei Lai
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yu-Sheng Lu
- College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China
| | - Jing-Wei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China; College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, China.
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7
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Naik P, García-Lacuna J, O’Neill P, Baumann M. Continuous Flow Oxidation of Alcohols Using TEMPO/NaOCl for the Selective and Scalable Synthesis of Aldehydes. Org Process Res Dev 2024; 28:1587-1596. [PMID: 38783858 PMCID: PMC11110051 DOI: 10.1021/acs.oprd.3c00237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Indexed: 05/25/2024]
Abstract
A simple and benign continuous flow oxidation protocol for the selective conversion of primary and secondary alcohols into their respective aldehyde and ketone products is reported. This approach makes use of catalytic amounts of TEMPO in combination with sodium bromide and sodium hypochlorite in a biphasic solvent system. A variety of substrates are tolerated including those containing heterocycles based on potentially sensitive nitrogen and sulfur moieties. The flow approach can be coupled with inline reactive extraction by formation of the carbonyl-bisulfite adduct which aids in separation of remaining substrate or other impurities. Process robustness is evaluated for the preparation of phenylpropanal at decagram scale, a trifluoromethylated oxazole building block as well as a late-stage intermediate for the anti-HIV drug maraviroc which demonstrates the potential value of this continuous oxidation method.
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Affiliation(s)
- Parth Naik
- School
of Chemistry, University College Dublin,
Science Centre South, Belfield D04 N2E5, Ireland
| | - Jorge García-Lacuna
- School
of Chemistry, University College Dublin,
Science Centre South, Belfield D04 N2E5, Ireland
| | | | - Marcus Baumann
- School
of Chemistry, University College Dublin,
Science Centre South, Belfield D04 N2E5, Ireland
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8
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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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9
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Shi R, Zhang X, Li C, Zhao Y, Li R, Waterhouse GIN, Zhang T. Electrochemical oxidation of concentrated benzyl alcohol to high-purity benzaldehyde via superwetting organic-solid-water interfaces. SCIENCE ADVANCES 2024; 10:eadn0947. [PMID: 38669338 PMCID: PMC11051661 DOI: 10.1126/sciadv.adn0947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/26/2024] [Indexed: 04/28/2024]
Abstract
Organic electrosynthesis in aqueous media is presently hampered by the poor solubility of many organic reactants and thus low purity of liquid products in electrolytes. Using the electrooxidation of benzyl alcohol (BA) as a model reaction, we present a "sandwich-type" organic-solid-water (OSW) system, consisting of BA organic phase, KOH aqueous electrolyte, and porous anodes with Janus-like superwettability. The system allows independent diffusion of BA molecules from the organic phase to electrocatalytic active sites, enabling efficient electrooxidation of high-concentration BA to benzaldehyde (97% Faradaic efficiency at ~180 mA cm-2) with substantially reduced ohmic loss compared to conventional solid-liquid systems. The confined organic-water boundary within the electrode channels suppresses the interdiffusion of molecules and ions into the counterphase, thus preventing the hydration and overoxidation of benzaldehyde during long-term electrocatalysis. As a result, the direct production of high-purity benzaldehyde (91.7%) is achieved in a flow cell, showcasing the effectiveness of electrocatalysis over OSW interfaces for the one-step synthesis of high-purity organic compounds.
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Affiliation(s)
- Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuerui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Petrochemical Research Institute, China National Petroleum Corporation, Beijing 112206, China
| | - Chengyu Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Rui Li
- College of Chemistry & Materials Science, Northwest University, Xi’an 710127, China
| | | | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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10
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Nie N, Zhao Z, Li X, Liu Y, Zhang Y. A Proline-Based Artificial Enzyme That Favors Aldol Condensation Enables Facile Synthesis of Aliphatic Ketones via Tandem Catalysis. ACS Synth Biol 2024; 13:1100-1104. [PMID: 38587465 DOI: 10.1021/acssynbio.4c00123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
A proline-based artificial enzyme is prepared by grafting the l-proline moieties onto the surface of bovine serum albumin (BSA) protein through atom transfer radical polymerization (ATRP). The artificial enzyme, the BSA-PolyProline conjugate, prefers to catalyze the formation of unsaturated ketones rather than β-hydroxy ketones in the reaction between acetone and aldehydes, which is difficult to achieve in free-proline catalysis. The altered reaction selectivity is ascribed to the locally concentrated l-proline moieties surrounding the BSA molecule, indicating a microenvironmental effect-induced switching of the reaction mechanism. Taking advantage of this selectivity, we used this artificial enzyme in conjunction with a natural enzyme, old yellow enzyme 1 (OYE1), to demonstrate a simple synthesis of different aliphatic ketones from acetone and aldehydes via tandem catalysis.
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Affiliation(s)
- Ning Nie
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ziye Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinwei Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yifei Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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11
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Liu C, Chen F, Zhao BH, Wu Y, Zhang B. Electrochemical hydrogenation and oxidation of organic species involving water. Nat Rev Chem 2024; 8:277-293. [PMID: 38528116 DOI: 10.1038/s41570-024-00589-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2024] [Indexed: 03/27/2024]
Abstract
Fossil fuel-driven thermochemical hydrogenation and oxidation using high-pressure H2 and O2 are still popular but energy-intensive CO2-emitting processes. At present, developing renewable energy-powered electrochemical technologies, especially those using clean, safe and easy-to-handle reducing agents and oxidants for organic hydrogenation and oxidation reactions, is urgently needed. Water is an ideal carrier of hydrogen and oxygen. Electrochemistry provides a powerful route to drive water splitting under ambient conditions. Thus, electrochemical hydrogenation and oxidation transformations involving water as the hydrogen source and oxidant, respectively, have been developed to be mild and efficient tools to synthesize organic hydrogenated and oxidized products. In this Review, we highlight the advances in water-participating electrochemical hydrogenation and oxidation reactions of representative organic molecules. Typical electrode materials, performance metrics and key characterization techniques are firstly introduced. General electrocatalyst design principles and controlling the microenvironment for promoting hydrogenation and oxygenation reactions involving water are summarized. Furthermore, paired hydrogenation and oxidation reactions are briefly introduced before finally discussing the challenges and future opportunities of this research field.
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Affiliation(s)
- Cuibo Liu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, China
| | - Fanpeng Chen
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, China
| | - Bo-Hang Zhao
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, China
| | - Yongmeng Wu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, China
| | - Bin Zhang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, China.
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology, Tianjin University, Tianjin, China.
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12
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Windels S, Vanhoof JR, Spittaels S, Coeck R, De Vos DE, Cuypers T. Tandem Electrooxidation - Reductive Amination of Biobased Isohexides Towards Bicyclic Diamines. CHEMSUSCHEM 2024:e202301627. [PMID: 38551954 DOI: 10.1002/cssc.202301627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/27/2024] [Indexed: 05/04/2024]
Abstract
Isohexide-derived diamines are considered preferred precursors for the production of biobased polyurethanes and polyamides. However, current synthesis methods from isohexides suffer from serious issues concerning selectivity and the recyclability of the process auxiliaries (e. g. homogeneous catalysts), which renders a translation to the industry highly unlikely. Here, we report on the production of such diamine building blocks, via a tandem electrooxidation - reductive amination process in which the process auxiliaries can be easily recycled. The application of (immobilized) TEMPO in combination with simple halides (e. g. NaBr) in the electrochemical step even enables the oxidation of the sterically hindered exo-OHs of the isohexides to the corresponding diketones (yield up to 99 %). In the subsequent reductive amination, the produced ketones are atom-efficiently converted to isohexide diamines utilizing NH3, H2, and Ru/C and an acid resin cocatalyst.
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Affiliation(s)
- Simon Windels
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
| | - Jef R Vanhoof
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
| | - Sander Spittaels
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
| | - Robin Coeck
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
| | - Dirk E De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
| | - Thomas Cuypers
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium)
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13
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Kumar S, Kumar M, Bhalla V. Cobalt-Centered Supramolecular Nanoensemble for Regulated Aerobic Oxidation of Alcohols and "One-Pot" Synthesis of Quinazolin-4(3 H)-ones. ACS APPLIED MATERIALS & INTERFACES 2023; 15:49246-49258. [PMID: 37844300 DOI: 10.1021/acsami.3c11244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The supramolecular assemblies of the donor-acceptor (D-A) system Im-Tpy, having phenanthro[9,10-d]imidazole as the donor and terpyridyl group as the acceptor unit, have been developed, which serve as supramolecular host to stabilize Co(II) in its nanoform. The as-prepared supramolecular nanoensemble Im-Tpy@Co in DMSO:water (7:3) shows high thermal stability and photostability. Even in the case of solvent mismatch, i.e., on dilution with cosolvent THF/DMSO, insignificant changes were observed in the size/morphology of the nanoensemble. The as-prepared Im-Tpy@Co nanoensemble in low catalytic loading (0.1 mol % of Co) catalyzes the oxidation of a wide variety of alcohols to aromatic aldehydes/ketones using visible light radiations as the source of energy without the need of any additive at room temperature. In comparison to already reported systems, the Im-Tpy@Co nanoensemble exhibits high turnover numbers (TONs) and turnover frequencies (TOFs). The practical application of the catalytic system has also been demonstrated in the gram-scale synthesis of 4-chlorobenzaldehyde. The Im-Tpy@Co nanoensemble exhibits recyclability up to four catalytic cycles with insignificant leaching and morphological changes. The present study also demonstrates the catalytic activity of the Im-Tpy@Co nanoensemble in "one-pot" synthesis of quinazolin-4(3H)-ones from 2-aminobenzamide and primary alcohols with better efficiency in comparison to other transition-metal-based catalytic systems.
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Affiliation(s)
- Sourav Kumar
- Department of Chemistry, UGC Sponsored-Centre of Advance Studies-II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manoj Kumar
- Department of Chemistry, UGC Sponsored-Centre of Advance Studies-II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Vandana Bhalla
- Department of Chemistry, UGC Sponsored-Centre of Advance Studies-II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
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14
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Laan PM, de Zwart FJ, Wilson EM, Troglia A, Lugier OCM, Geels NJ, Bliem R, Reek JNH, de Bruin B, Rothenberg G, Yan N. Understanding the Oxidative Properties of Nickel Oxyhydroxide in Alcohol Oxidation Reactions. ACS Catal 2023; 13:8467-8476. [PMID: 37441234 PMCID: PMC10334462 DOI: 10.1021/acscatal.3c01120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/08/2023] [Indexed: 07/15/2023]
Abstract
The NiOOH electrode is commonly used in electrochemical alcohol oxidations. Yet understanding the reaction mechanism is far from trivial. In many cases, the difficulty lies in the decoupling of the overlapping influence of chemical and electrochemical factors that not only govern the reaction pathway but also the crystal structure of the in situ formed oxyhydroxide. Here, we use a different approach to understand this system: we start with synthesizing pure forms of the two oxyhydroxides, β-NiOOH and γ-NiOOH. Then, using the oxidative dehydrogenation of three typical alcohols as the model reactions, we examine the reactivity and selectivity of each oxyhydroxide. While solvent has a clear effect on the reaction rate of β-NiOOH, the observed selectivity was found to be unaffected and remained over 95% for the dehydrogenation of both primary and secondary alcohols to aldehydes and ketones, respectively. Yet, high concentration of OH- in aqueous solvent promoted the preferential conversion of benzyl alcohol to benzoic acid. Thus, the formation of carboxylic compounds in the electrochemical oxidation without alkaline electrolyte is more likely to follow the direct electrochemical oxidation pathway. Overoxidation of NiOOH from the β- to γ-phase will affect the selectivity but not the reactivity with a sustained >95% conversion. The mechanistic examinations comprising kinetic isotope effects, Hammett analysis, and spin trapping studies reveal that benzyl alcohol is oxidatively dehydrogenated to benzaldehyde via two consecutive hydrogen atom transfer steps. This work offers the unique oxidative and catalytic properties of NiOOH in alcohol oxidation reactions, shedding light on the mechanistic understanding of the electrochemical alcohol conversion using NiOOH-based electrodes.
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Affiliation(s)
- Petrus
C. M. Laan
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Felix J. de Zwart
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Emma M. Wilson
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Alessandro Troglia
- Advanced
Research Center for Nanolithography (ARCNL), Science Park 106, 1098 XG Amsterdam, The Netherlands
| | - Olivier C. M. Lugier
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Norbert J. Geels
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Roland Bliem
- Advanced
Research Center for Nanolithography (ARCNL), Science Park 106, 1098 XG Amsterdam, The Netherlands
| | - Joost N. H. Reek
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Gadi Rothenberg
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Ning Yan
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Key
Laboratory of Artificial Micro- and Nano-Structures of Ministry of
Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
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15
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Nanzai B, Mochizuki A, Wakikawa Y, Masuda Y, Oshio T, Yagishita K. Sonoluminescence intensity and ultrasonic cavitation temperature in organic solvents: Effects of generated radicals. ULTRASONICS SONOCHEMISTRY 2023; 95:106357. [PMID: 36913783 PMCID: PMC10025144 DOI: 10.1016/j.ultsonch.2023.106357] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Ultrasonic cavitation in organic solvents remains poorly understood in contrast with aqueous systems, largely because of complexities related to solvent decomposition. In this study, we sonicated different types of organic solvents (i.e. linear alkanes, aliphatic alcohols, aromatic alcohols, and acetate esters) under argon saturation. The average temperature of the cavitation bubbles was estimated using the methyl radical recombination method. We also discuss the effects of the physical properties of the solvents, such as vapor pressure and viscosity, on the cavitation temperature. The average cavitation bubble temperature and sonoluminescence intensity were higher in organic solvents with lower vapor pressure; for aromatic alcohols, these values were particularly high. It was found that the specific high sonoluminescence intensities and average cavitation temperatures exhibited in aromatic alcohols are caused by the highly resonance-stable generated radicals. The results obtained in this study are very useful for acceleration of sonochemical reaction in organic solvents, which are indispensable for organic synthesis and material synthesis.
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Affiliation(s)
- Ben Nanzai
- Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan.
| | - Akimitsu Mochizuki
- Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Yusuke Wakikawa
- Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Yusuke Masuda
- Department of Materials and Life Science, Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Tadashi Oshio
- Lubricants R&D Department, Lubricants Company, ENEOS Corporation, 8 Chidoricho, Naka-ku, Yokohama 231-0815, Japan
| | - Kazuhiro Yagishita
- Lubricants R&D Department, Lubricants Company, ENEOS Corporation, 8 Chidoricho, Naka-ku, Yokohama 231-0815, Japan
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16
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Han S, Cheng C, He M, Li R, Gao Y, Yu Y, Zhang B, Liu C. Preferential Adsorption of Ethylene Oxide on Fe and Chlorine on Ni Enabled Scalable Electrosynthesis of Ethylene Chlorohydrin. Angew Chem Int Ed Engl 2023; 62:e202216581. [PMID: 36734467 DOI: 10.1002/anie.202216581] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/11/2023] [Accepted: 02/03/2023] [Indexed: 02/04/2023]
Abstract
Industrial manufacturing of ethylene chlorohydrin (ECH) critically requires excess corrosive hydrochloric acid or hypochlorous acid with dealing with massive by-products and wastes. Here we report a green and efficient electrosynthesis of ECH from ethylene oxide (EO) with NaCl over a NiFe2 O4 nanosheet anode. Theoretical results suggest that EO and Cl preferentially adsorb on Fe and Ni sites, respectively, collaboratively promoting the ECH synthesis. A Cl radical-mediated ring-opening process is proposed and confirmed, and the key Cl and carbon radical species are identified by high-resolution mass spectrometry. This strategy can enable scalable electrosynthesis of 185.1 mmol of ECH in 1 h with 92.5 % yield at a 55 mA cm-2 current density. Furthermore, a series of other chloro- and bromoethanols with good to high yields and paired synthesis of ECH and 4-amino-3,6-dichloropyridine-2-carboxylicacid via respectively loading and unloading Cl are achieved, showing the promising potential of this strategy.
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Affiliation(s)
- Shuyan Han
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Chuanqi Cheng
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Meng He
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Rui Li
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Ying Gao
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Yifu Yu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Bin Zhang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Cuibo Liu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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17
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Xu Z, Peng C, Zheng G. Coupling Value-Added Anodic Reactions with Electrocatalytic CO 2 Reduction. Chemistry 2023; 29:e202203147. [PMID: 36380419 DOI: 10.1002/chem.202203147] [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: 10/09/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022]
Abstract
Electrocatalytic CO2 reduction features a promising approach to realize carbon neutrality. However, its competitiveness is limited by the sluggish oxygen evolution reaction (OER) at anode, which consumes a large portion of energy. Coupling value-added anodic reactions with CO2 electroreduction has been emerging as a promising strategy in recent years to enhance the full-cell energy efficiency and produce valuable chemicals at both cathode and anode of the electrolyzer. This review briefly summarizes recent progresses on the electrocatalytic CO2 reduction, and the economic feasibility of different CO2 electrolysis systems is discussed. Then a comprehensive summary of recent advances in the coupled electrolysis of CO2 and potential value-added anodic reactions is provided, with special focus on the specific cell designs. Finally, current challenges and future opportunities for the coupled electrolysis systems are proposed, which are targeted to facilitate progress in this field and push the CO2 electrolyzers to a more practical level.
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Affiliation(s)
- Zikai Xu
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Chen Peng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Gengfeng Zheng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
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18
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Lee S, Kim M, Park J, Choi J, Kang J, Park M. A High Voltage Aqueous Zinc-Vanadium Redox Flow Battery with Bimodal Tin and Copper Clusters by a Continuous-Flow Electrometallic Synthesis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7002-7013. [PMID: 36710651 DOI: 10.1021/acsami.2c22554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Aqueous zinc-based redox flow batteries are promising large-scale energy storage applications due to their low cost, high safety, and environmental friendliness. However, the zinc dendritic growth has depressed the cycle performance, stability, and efficiency, hindering the commercialization of the zinc-based redox flow batteries. We fabricate the carbon felt modified with bimodal sized tin and copper clusters (SCCF) with the electrometallic synthesis in a continuous-flow cell. The SCCF electrode provides a larger zinc nucleation area and lower overpotential than pristine carbon felt, which is ascribed to the well-controlled interfacial interaction of bimodal tin and copper particle clusters by suppressing unwanted alloy formation. The zinc symmetric flow battery and the zinc-based hybrid redox flow battery show the improved zinc plating and stripping efficiency. The SCCF electrode exhibits 75% improved cycling stability compared to the pristine carbon felt electrode in the zinc symmetric flow battery. Notably, the high-voltage aqueous zinc-vanadium redox flow battery demonstrates a high average cell voltage of 2.31 V at 40 mA cm-2, showing a Coulombic efficiency of 99.9% and an energy efficiency of 87.6% for 100 cycles. We introduce a facile strategy to suppress the zinc dendritic growth, enhancing the performance of the zinc-based redox flow batteries.
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Affiliation(s)
- Soobeom Lee
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
- Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Minsoo Kim
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
- Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Jihan Park
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
- Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Jinyeong Choi
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
- Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Joonhee Kang
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Minjoon Park
- Department of Nanoenergy Engineering, Pusan National University, 50, Busan daehak-ro 63 beon-gil 2, Geumjeong-gu, Busan46241, Republic of Korea
- Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
- Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea
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19
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Sato E, Tachiwaki G, Fujii M, Mitsudo K, Washio T, Takizawa S, Suga S. Electrochemical Carbon-Ferrier Rearrangement Using a Microflow Reactor and Machine Learning-Assisted Exploration of Suitable Conditions. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Eisuke Sato
- Faculty of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Gaku Tachiwaki
- Faculty of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Mayu Fujii
- Faculty of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Faculty of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Takashi Washio
- Department of Reasoning for Intelligence, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Artificial Intelligence Research Center, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Shinobu Takizawa
- Department of Reasoning for Intelligence, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Department of Synthetic Organic Chemistry, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Seiji Suga
- Faculty of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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20
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Huang H, Song X, Yu C, Wei Q, Ni L, Han X, Huang H, Han Y, Qiu J. A Liquid-Liquid-Solid System to Manipulate the Cascade Reaction for Highly Selective Electrosynthesis of Aldehyde. Angew Chem Int Ed Engl 2023; 62:e202216321. [PMID: 36414544 DOI: 10.1002/anie.202216321] [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: 11/06/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Electrocatalytic synthesis of aldehydes from alcohols exhibits unique superiorities as a promising technology, in which cascade reactions are involved. However, the cascade reactions are severely limited by the low selectivity resulting from the peroxidation of aldehydes in a traditional liquid-solid system. Herein, we report a novel liquid-liquid-solid system to regulate the selectivity of benzyl alcohol electrooxidation. The selectivity of benzaldehyde increases 200-fold from 0.4 % to 80.4 % compared with the liquid-solid system at a high current density of 136 mA cm-2 , which is the highest one up to date. In the tri-phase system, the benzaldehyde peroxidation is suppressed efficiently, with the conversion of benzaldehyde being decreased from 87.6 % to 3.8 %. The as-produced benzaldehyde can be in situ extracted to toluene phase and separated from the electrolyte to get purified benzaldehyde. This strategy provides an efficient way to efficiently enhance the selectivity of electrocatalytic cascade reactions.
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Affiliation(s)
- Hongling Huang
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Xuedan Song
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Chang Yu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Qianbing Wei
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Lin Ni
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Xiaotong Han
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Huawei Huang
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Yingnan Han
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Jieshan Qiu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
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21
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Klein M, Waldvogel SR. Counter Electrode Reactions-Important Stumbling Blocks on the Way to a Working Electro-organic Synthesis. Angew Chem Int Ed Engl 2022; 61:e202204140. [PMID: 35668714 PMCID: PMC9828107 DOI: 10.1002/anie.202204140] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Indexed: 01/12/2023]
Abstract
Over the past two decades, electro-organic synthesis has gained significant interest, both in technical and academic research as well as in terms of applications. The omission of stoichiometric oxidizers or reducing agents enables a more sustainable route for redox reactions in organic chemistry. Even if it is well-known that every electrochemical oxidation is only viable with an associated reduction reaction and vice versa, the relevance of the counter reaction is often less addressed. In this Review, the importance of the corresponding counter reaction in electro-organic synthesis is highlighted and how it can affect the performance and selectivity of the electrolytic conversion. A selection of common strategies and unique concepts to tackle this issue are surveyed to provide a guide to select appropriate counter reactions for electro-organic synthesis.
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Affiliation(s)
- Martin Klein
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Siegfried R. Waldvogel
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
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22
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Yavari I, Shaabanzadeh S. Benzylic C(sp 3)-H Bonds Play the Dual Role of Starting Material and Oxidation Inhibitor for Hydrazides in the Electrochemical Synthesis of Hydrazones. J Org Chem 2022; 87:15077-15085. [PMID: 36347012 DOI: 10.1021/acs.joc.2c01574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The electrooxidation of benzylic C(sp3)-H bonds to produce hydrazones as an alternate for conventional pathways has an enormous dignity. Under the aegis of electricity, instead of hazardous metal catalysts and external oxidants, we unveil an electrochemical process for electrooxidation of various benzylic C(sp3)-H bonds in aqueous media in all pH ranges that subsequently produce hydrazones with further reactions. This electrooxidative reaction strategy provides an acceptable condition for synthesizing hydrazones with various functional groups in good efficiency and amenable to gram-scale synthesis. The electrochemical oxidation condition proves an excellent level of compatibility with super cheap electrolyte NaCl for the oxidation of benzylic C(sp3)-H position despite the highly oxidizable hydrazide group remaining intact in the reaction.
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Affiliation(s)
- Issa Yavari
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran 1463694571, Iran
| | - Sina Shaabanzadeh
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran 1463694571, Iran
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23
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Xu L, Huang Z, Yang M, Wu J, Chen W, Wu Y, Pan Y, Lu Y, Zou Y, Wang S. Salting‐Out Aldehyde from the Electrooxidation of Alcohols with 100 % Selectivity. Angew Chem Int Ed Engl 2022; 61:e202210123. [DOI: 10.1002/anie.202210123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Leitao Xu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Zhifeng Huang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Ming Yang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Jingcheng Wu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Wei Chen
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Yandong Wu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Yuping Pan
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Yuxuan Lu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Yuqin Zou
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
| | - Shuangyin Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha China
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24
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Sun S, Dai C, Sun L, Seh ZW, Sun Y, Fisher A, Wang X, Xu ZJ. The effect of the hydroxyl group position on the electrochemical reactivity and product selectivity of butanediol electro-oxidation. Dalton Trans 2022; 51:14491-14497. [PMID: 36106440 DOI: 10.1039/d2dt02450k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article presents a study on the effect of the hydroxyl group position on the electro-oxidation of butanediols, including 1,2-butanediol, 2,3-butanediol, 1,3-butanediol, and 1,4-butanediol. The effect of the hydroxyl group position in butanediols on their electro-oxidation reactivities is investigated by cyclic voltammetry, linear sweep voltammetry, chronopotentiometry and chronoamperometry in 1.0 M KOH. The results show that the closer the two hydroxyl groups are, the higher the reactivity, and the lower the anodic potential butanediol has. Moreover, the oxidation products from chronoamperometry are analyzed by means of HPLC and NMR. Some value-added products, such as 3-hydroxypropionic acid/3-hydroxypropionate, are produced. The DFT calculation indicates that the oxidation of vicinal diols responds to the conversion from a hydroxyl group to a carboxylate group, followed by C-C bond cleavage, where the carbon charge decreases. These results provide an insight into reactant selection for the electrochemical synthesis of value-added chemicals.
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Affiliation(s)
- Shengnan Sun
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, 138634 Singapore
| | - Chencheng Dai
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.
| | - Libo Sun
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.
| | - Zhi Wei Seh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, 138634 Singapore
| | - Yuanmiao Sun
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.
| | - Adrian Fisher
- Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, CB3 0AS Cambridge, UK
| | - Xin Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.,Centre of Advanced Catalysis Science and Technology, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Zhichuan J Xu
- School of Material Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore. .,Centre of Advanced Catalysis Science and Technology, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore.,Energy Research Institute @ Nanyang Technological University, ERI@N, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
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25
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Xu L, Huang Z, Yang M, Wu J, Chen W, Wu Y, Pan Y, Lu Y, Zou Y, Wang S. Salting‐out aldehyde from electrooxidation of alcohol with 100% selectivity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210123] [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)
- Leitao Xu
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Zhifeng Huang
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Ming Yang
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Jingcheng Wu
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Wei Chen
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Yandong Wu
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Yuping Pan
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Yuxuan Lu
- Hunan University College of Chemistry and Chemical Engineering CHINA
| | - Yuqin Zou
- Hunan University Yuelu Road Changsha CHINA
| | - Shuangyin Wang
- Hunan University College of Chemistry and Chemical Engineering CHINA
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26
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Lin K, Lan J, Zhu T. Electrosynthesis of β‐Acyloxy‐γ‐Selenyl Amine via Migratory Oxyselenation of N‐Acyl Allylamine. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200597] [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]
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27
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Karjule N, Phatake RS, Barzilai S, Mondal B, Azoulay A, Shames AI, Volokh M, Albero J, García H, Shalom M. Photoelectrochemical alcohols oxidation over polymeric carbon nitride photoanodes with simultaneous H 2 production. JOURNAL OF MATERIALS CHEMISTRY. A 2022; 10:16585-16594. [PMID: 36091884 PMCID: PMC9365238 DOI: 10.1039/d2ta03660f] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
The photoelectrochemical oxidation of organic molecules into valuable chemicals is a promising technology, but its development is hampered by the poor stability of photoanodic materials in aqueous solutions, low faradaic efficiency, low product selectivity, and a narrow working pH range. Here, we demonstrate the synthesis of value-added aldehydes and carboxylic acids with clean hydrogen (H2) production in water using a photoelectrochemical cell based solely on polymeric carbon nitride (CN) as the photoanode. Isotope labeling measurements and DFT calculations reveal a preferential adsorption of benzyl alcohol and molecular oxygen to the CN layer, enabling fast proton abstraction and oxygen reduction, which leads to the synthesis of an aldehyde at the first step. Further oxidation affords the corresponding acid. The CN photoanode exhibits excellent stability (>40 h) and activity for the oxidation of a wide range of substituted benzyl alcohols with high yield, selectivity (up to 99%), and faradaic efficiency (>90%).
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Affiliation(s)
- Neeta Karjule
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Ravindra S Phatake
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Shmuel Barzilai
- Department of Chemistry, Nuclear Research Centre-Negev P.O. Box 9001 Beer-Sheva 84910 Israel
| | - Biswajit Mondal
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Adi Azoulay
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Alexander I Shames
- Department of Physics, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Michael Volokh
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Josep Albero
- Instituto Universitario de Tecnología Química (ITQ), Consejo Superior de Investigaciones, Científicas (CSIC), Universitat Politècnica de València (UPV) Avda. de Los Narajos s/n Valencia 46022 Spain
| | - Hermenegildo García
- Instituto Universitario de Tecnología Química (ITQ), Consejo Superior de Investigaciones, Científicas (CSIC), Universitat Politècnica de València (UPV) Avda. de Los Narajos s/n Valencia 46022 Spain
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
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28
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Qiu J, Boskin D, Oleson D, Wu W, Anderson M. Plasmon-enhanced electrochemical oxidation of 4-(hydroxymethyl)benzoic acid. J Chem Phys 2022; 157:081101. [DOI: 10.1063/5.0106914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Plasmon-mediated electrocatalysis based on plasmonic gold nanoparticles (Au NPs) has emerged as a promising approach to facilitate electrochemical reactions with the introduction of light to excite the plasmonic electrodes. We have investigated the electrochemical oxidation of 4-(hydroxymethyl)benzoic acid (4-HMBA) on gold (Au), nickel (Ni), and platinum (Pt) metal working electrodes in alkaline electrolytes. Au has the lowest onset potential for catalyzing the electrooxidation of 4-HMBA among the three metals in base whereas Pt does not catalyze the electrooxidation of 4-HMBA under alkaline conditions, although it is conventionally a good electrocatalyst for alcohol oxidation. Both 4-carboxybenzaldehyde and terephthalic acid are detected as the products of electrochemical oxidation of 4-HMBA on the Au working electrode by high-performance liquid chromatography (HPLC). The electrodeposited Au NPs on indium tin oxide (ITO)-coated glass is further utilized as the working electrode for the 4-HMBA electrooxidation. With its broad absorption in the visible and near-infrared (NIR) range, we show that the Au NPs on the ITO electrode could enhance the electrochemical oxidation of 4-HMBA under green and red LED light illuminations (505 nm and 625 nm). A possible reaction mechanism is proposed for the electrochemical oxidation of 4-HMBA on Au working electrodes in an alkaline electrolyte.
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Affiliation(s)
- Jingjing Qiu
- Chemistry and Biochemistry, San Francisco State University, United States of America
| | - Daniel Boskin
- San Francisco State University, United States of America
| | - Dallas Oleson
- San Francisco State University, United States of America
| | - Weiming Wu
- San Francisco State University, United States of America
| | - Marc Anderson
- San Francisco State University, United States of America
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29
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Electrosynthesis of tetrabenzylthiuram disulfide via flow reactors. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Guo C, Zhou W, Lan X, Wang Y, Li T, Han S, Yu Y, Zhang B. Electrochemical Upgrading of Formic Acid to Formamide via Coupling Nitrite Co-Reduction. J Am Chem Soc 2022; 144:16006-16011. [PMID: 35905476 DOI: 10.1021/jacs.2c05660] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Formic acid (HCOOH) can be exclusively prepared through CO2 electroreduction at an industrial current density (0.5 A cm-2). However, the global annual demand for formic acid is only ∼1 million tons, far less than the current CO2 emission scale. The exploration of an economical and green approach to upgrading CO2-derived formic acid is significant. Here, we report an electrochemical process to convert formic acid and nitrite into high-valued formamide over a copper catalyst under ambient conditions, which offers the selectivity from formic acid to formamide up to 90.0%. Isotope-labeled in situ attenuated total reflection surface-enhanced infrared absorption spectroscopy and quasi in situ electron paramagnetic resonance results reveal the key C-N bond formation through coupling *CHO and *NH2 intermediates. This work offers an electrochemical strategy to upgrade CO2-derived formic acid into high-value formamide.
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Affiliation(s)
- Chengying Guo
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Wei Zhou
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Xianen Lan
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yuting Wang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Tieliang Li
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Shuhe Han
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yifu Yu
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Bin Zhang
- Institute of Molecular Plus, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China.,Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
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31
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Takumi M, Sakaue H, Shibasaki D, Nagaki A. Rapid access to organic triflates based on flash generation of unstable sulfonium triflates in flow. Chem Commun (Camb) 2022; 58:8344-8347. [PMID: 35797717 DOI: 10.1039/d2cc02344j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flash (extremely fast) electrochemical generation of unstable arylbis(arylthio)sulfonium triflates [ArS(ArSSAr)]+ [OTf]- that are unsuitable for accumulation in batch processes was achieved within 10 s in a divided-type flow electrochemcial reactor, enabling one-flow access to vinyl triflates, short-lived oxocarbenium triflates and glycosyl triflates.
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Affiliation(s)
- Masahiro Takumi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Hodaka Sakaue
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Daiki Shibasaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
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32
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Zhou H, Wang Y, Ren Y, Li Z, Kong X, Shao M, Duan H. Plastic Waste Valorization by Leveraging Multidisciplinary Catalytic Technologies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hua Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Ye Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yue Ren
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mingfei Shao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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33
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Takumi M, Nagaki A. Flash Synthesis and Continuous Production of C-Arylglycosides in a Flow Electrochemical Reactor. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.862766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Electrochemistry provides a green and atom-efficient route to synthesize pharmaceutical and useful functional molecules, as it eliminates the need for the harsh chemical oxidants and reductants commonly used in traditional chemical reactions. To promote the implementation of electrochemical processes in the industry, there is a strong demand for the development of technologies that would allow for scale-up and a shortened reaction process time. Herein, we report that electrolysis was successfully accomplished using a flow-divided-electrochemical reactor within a few seconds, enabling the desired chemical conversion in a short period of time. Moreover, the narrow electrode gap of the flow reactor, which offers greener conditions than the conventional batch reactor, resulted in the continuous flash synthesis of C-arylglycosides.
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34
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Gao Y, Yang R, Wang C, Liu C, Wu Y, Li H, Zhang B. Field-induced reagent concentration and sulfur adsorption enable efficient electrocatalytic semihydrogenation of alkynes. SCIENCE ADVANCES 2022; 8:eabm9477. [PMID: 35196082 PMCID: PMC8865775 DOI: 10.1126/sciadv.abm9477] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Efficient electrocatalytic alkyne semihydrogenation with potential/time-independent selectivity and Faradaic efficiency (FE) is vital for industrial alkene productions. Here, sulfur-tuned effects and field-induced reagent concentration are proposed to promote electrocatalytic alkyne semihydrogenation. Density functional theory calculations reveal that bulk sulfur anions intrinsically weaken alkene adsorption, and surface thiolates lower the activation energy of water and the Gibbs free energy for H* formation. The finite element method shows high-curvature structured catalyst concentrates K+ by enhancing electric field at the tips, accelerating more H* formation from water electrolysis via sulfur anion-hydrated cation networks, and promoting alkyne transformations. So, self-supported Pd nanotips with sulfur modifiers are developed for electrochemical alkyne semihydrogenation with up to 97% conversion yield, 96% selectivity, 75% FE, and a reaction rate of 465.6 mmol m-2 hour-1. Wide potential window and time irrelevance for high alkene selectivity, good universality, and easy access to deuterated alkenes highlight the promising potential.
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Affiliation(s)
- Ying Gao
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Rong Yang
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Changhong Wang
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Cuibo Liu
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Yongmeng Wu
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Huizhi Li
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
| | - Bin Zhang
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
- Corresponding author.
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35
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Zhou H, Li Z, Ma L, Duan H. Electrocatalytic oxidative upgrading of biomass platform chemicals: from the aspect of reaction mechanism. Chem Commun (Camb) 2022; 58:897-907. [PMID: 34981104 DOI: 10.1039/d1cc06254a] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidation reactions provide a wide range of important chemicals in industry; however, most of these chemicals are produced from fossil feedstocks. As a candidate of oxygen evolution reaction (OER), the electrooxidation of biomass platform chemicals instead of a petroleum source offers a sustainable and atom-economic avenue toward organic oxygenates, with additional benefits when coupled with renewable electricity driven processes. This highlight article describes the representative examples in this nascent area, including oxidative dehydrogenation, coupling, and cleavage. We classify the examples into inner-sphere and outer-sphere electrode reactions based on the classical electrocatalysis concept for better understanding of the reaction mechanism. Moreover, we highlight the recent progress in oxidative biomass electrorefining via inner-sphere anodic reactions, which are strongly dependent on the nature of the electrode material. Particularly, the understanding of the formation of reactive oxygen species, adsorption of substrates, and reconstruction of anode materials is presented. Finally, the existing challenges and perspectives are discussed.
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Affiliation(s)
- Hua Zhou
- Department of Chemistry, Tsinghua University, Beijing 100084, China. .,State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lina Ma
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
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36
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Flash Electrochemical Approach to Carbocations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Droplet Flow Assisted Electrocatalytic Oxidation of Selected Alcohols under Ambient Condition. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020382. [PMID: 35056693 PMCID: PMC8779358 DOI: 10.3390/molecules27020382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/27/2021] [Accepted: 01/04/2022] [Indexed: 12/04/2022]
Abstract
This study reports using a droplet flow assisted mechanism to enhance the electrocatalytic oxidation of benzyl alcohol, 2-phenoxyethanol, and hydroxymethylfurfural at room temperature. Cobalt phosphide (CoP) was employed as an active electrocatalyst to promote the oxidation of each of the individual substrates. Surface analysis of the CoP electrocatalyst using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), as well as electrochemical characterization, revealed that it had excellent catalytic activity for each of the substrates studied. The combined droplet flow with the continuous flow electrochemical oxidation approach significantly enhanced the conversion and selectivity of the transformation reactions. The results of this investigation show that at an electrolysis potential of 1.3 V and ambient conditions, both the selectivity and yield of aldehyde from substrate conversion can reach 97.0%.
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38
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Hou H, Ma X, Ye Y, Wu M, Shi S, Zheng W, Lin M, Sun W, Ke F. Non-metal-mediated N-oxyl radical (TEMPO)-induced acceptorless dehydrogenation of N-heterocycles via electrocatalysis. RSC Adv 2022; 12:5483-5488. [PMID: 35425580 PMCID: PMC8981507 DOI: 10.1039/d1ra08919f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/01/2022] [Indexed: 11/21/2022] Open
Abstract
The development of protocols for direct catalytic acceptorless dehydrogenation of N-heterocycles with metal-free catalysts holds the key to difficulties in green and sustainable chemistry. Herein, an N-oxyl radical (TEMPO) acting as an oxidant in combination with electrochemistry is used as a synthesis system under neutral conditions to produce N-heterocycles such as benzimidazole and quinazolinone. The key feature of this protocol is the utilization of the TEMPO system as an inexpensive and easy to handle radical surrogate that can effectively promote the dehydrogenation reaction. Mechanistic studies also suggest that oxidative TEMPOs redox catalytic cycle participates in the dehydrogenation of 2,3-dihydro heteroarenes. The development of protocols for direct catalytic acceptorless dehydrogenation of N-heterocycles with metal-free catalysts holds the key to difficulties in green and sustainable chemistry.![]()
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Affiliation(s)
- Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Yaling Ye
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Mei Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Sunjie Shi
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Wenhe Zheng
- The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - Mei Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
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39
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El-Assaad TH, Zhu J, Sebastian A, McGrath DV, Neogi I, Parida KN. Dioxiranes: A Half-Century Journey. Org Chem Front 2022. [DOI: 10.1039/d2qo01005d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dioxiranes are multi-tasking reagents inheriting mild and selective oxygen transfer attributes. These oxidants are accessed from the reaction of ketones with an oxidant and are employed stoichiometrically or catalytically (in...
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40
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Takumi M, Sakaue H, Nagaki A. Flash Electrochemical Approach to Carbocations. Angew Chem Int Ed Engl 2021; 61:e202116177. [PMID: 34931424 DOI: 10.1002/anie.202116177] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 11/07/2022]
Abstract
A novel flow electrochemical reactor that accomplishes electrolysis within a few seconds in a single passage was developed. By using the flow reactor system, the flash electrochemical generation of short-lived carbocations, including oxocarbenium ions, N -acyliminium ions, glycosyl cations, and Ferrier cations was achieved within a few seconds, enabling the subsequent reaction with nucleophiles before their decomposition. Moreover, continuous operation based on the present system enabled the rapid synthesis of pharmaceutical precursors on demand.
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Affiliation(s)
- Masahiro Takumi
- Graduate School of Engineering, Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Hodaka Sakaue
- Graduate School of Engineering, Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Aiichiro Nagaki
- Kyoto University, Graduate School of Engineering, Department of Synthetic Chemistry & Biological Chemistry, Katsura, 615-8510, Kyoto, JAPAN
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41
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Ido Y, Fukazawa A, Furutani Y, Sato Y, Shida N, Atobe M. Triple-phase Boundary in Anion-Exchange Membrane Reactor Enables Selective Electrosynthesis of Aldehyde from Primary Alcohol. CHEMSUSCHEM 2021; 14:5405-5409. [PMID: 34651442 DOI: 10.1002/cssc.202102076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Oxidation of primary alcohol to the corresponding aldehyde remains a significant challenge, even with the state-of-the-art chemistry. Here, a novel electrochemical system was developed for the exclusive production of aldehyde from primary alcohol using an anion-exchange membrane (AEM) reactor. Oxidation proceeded on a gold catalyst under basic conditions, which largely enhanced the reaction rate. Despite the basic nature around the reaction sites, the oxidation of primary alcohols exclusively yielded the corresponding aldehyde, which was attributed to the unique three-phase interfacial reaction sites in the AEM reactor. In addition to benzyl alcohol, the oxidation of allylic and aliphatic alcohols was also demonstrated. Comparison of constant potential electrolysis with the AEM reactor or a conventional batch-type cell revealed the crucial role of the triple-phase boundary for the selectivity of the oxidation of alcohol.
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Affiliation(s)
- Yuto Ido
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Atsushi Fukazawa
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Yuka Furutani
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Yasushi Sato
- Innovation Technology Center, ENEOS Corporation, 8 Chidoricho, Naka-ku, Yokohama, 231-0815, Japan
| | - Naoki Shida
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Mahito Atobe
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
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42
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Wang D, Wan Z, Zhang H, Alhumade H, Yi H, Lei A. Electrochemical Reductive Arylation of Nitroarenes with Arylboronic Acids. CHEMSUSCHEM 2021; 14:5399-5404. [PMID: 34581006 DOI: 10.1002/cssc.202101924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/26/2021] [Indexed: 06/13/2023]
Abstract
The synthesis of diarylamine is extremely important in organic chemistry. Herein, a novel electrochemical reductive arylation of nitroarenes with arylboronic acids was developed. A variety of diarylamines were synthesized without the need for transition-metal catalysts. The reaction could be scaled up efficiently in a flow cell and several derivatization reactions were carried out smoothly. Cyclic voltammetry experiments and mechanism studies showed that acetonitrile, formic acid, and triethyl phosphite all played a role in promoting this reductive arylation transformation.
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Affiliation(s)
- Dan Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, 430062, P. R. China
| | - Zhaohua Wan
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Hesham Alhumade
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jdedah, 21589, Saudi Arabia
- Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jdedah, 21589, Saudi Arabia
| | - Hong Yi
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Wuhan University, Wuhan, 430072, P. R. China
- King Abdulaziz University, Jdedah, 21589, Saudi Arabia
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43
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Visayas BRB, Pahari SK, Gokoglan TC, Golen JA, Agar E, Cappillino PJ, Mayes ML. Computational and experimental investigation of the effect of cation structure on the solubility of anionic flow battery active-materials. Chem Sci 2021; 12:15892-15907. [PMID: 35024113 PMCID: PMC8672735 DOI: 10.1039/d1sc04990a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/24/2021] [Indexed: 12/24/2022] Open
Abstract
Recent advances in clean, sustainable energy sources such as wind and solar have enabled significant cost improvements, yet their inherent intermittency remains a considerable challenge for year-round reliability demanding the need for grid-scale energy storage. Nonaqueous redox flow batteries (NRFBs) have the potential to address this need, with attractive attributes such as flexibility to accommodate long- and short-duration storage, separately scalable energy and power ratings, and improved safety profile over integrated systems such as lithium-ion batteries. Currently, the low-solubility of NRFB electrolytes fundamentally limits their energy density. However, synthetically exploring the large chemical and parameter space of NRFB active materials is not only costly but also intractable. Here, we report a computational framework, coupled with experimental validation, designed to predict the solubility trends of electrolytes, incorporating both the lattice and solvation free energies. We reveal that lattice free energy, which has previously been neglected, has a significant role in tuning electrolyte solubility, and that solvation free energies alone is insufficient. The desymmetrization of the alkylammonium cation leading to short-chain, asymmetric cations demonstrated a modest increase in solubility, which can be further explored for NRFB electrolyte development and optimization. The resulting synergistic computational-experimental approach provides a cost-effective strategy in the development of high-solubility active materials for high energy density NRFB systems.
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Affiliation(s)
- Benjoe Rey B Visayas
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth MA 02747-2300 USA
| | - Shyam K Pahari
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth MA 02747-2300 USA
| | - Tugba Ceren Gokoglan
- Department of Mechanical Engineering, Energy Engineering Graduate Program, University of Massachusetts Lowell Lowell MA 01854 USA
| | - James A Golen
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth MA 02747-2300 USA
| | - Ertan Agar
- Department of Mechanical Engineering, Energy Engineering Graduate Program, University of Massachusetts Lowell Lowell MA 01854 USA
| | - Patrick J Cappillino
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth MA 02747-2300 USA
| | - Maricris L Mayes
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth MA 02747-2300 USA
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44
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Quinone shuttling impels selective electrocatalytic alcohol oxidation: A hydrogen bonding-directed electrosynthesis. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Liu L, Hong X, Hu X. Direct electrochemical reduction of ethyl isonicotinate to 4-pyridinemethanol in an undivided flow reactor. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00206-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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46
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Ciriminna R, Ghahremani M, Karimi B, Pagliaro M. Waste‐free oxidation of alcohols at the surface of catalytic electrodes: What is required for industrial uptake? ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
| | - Mina Ghahremani
- Department of Chemistry Institute for Advanced Studies in Basic Sciences Gava Zang Zanjan Iran
| | - Babak Karimi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences Gava Zang Zanjan Iran
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali Nanostrutturati Palermo Italy
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47
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Fu T, Yang N, Hu J, Qiao M, Li C, Qi C, Shen Z, Zhang F. Synthesis of Nano‐Cr/Mn Composite Metal Oxides‐SBA‐15 Material and Its Catalytic Performance in Aerobic Oxidations of Benzyl Alcohols. ChemistrySelect 2021. [DOI: 10.1002/slct.202103158] [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)
- Tangming Fu
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
| | - Ning Yang
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
| | - Jiawen Hu
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
| | - Minglong Qiao
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
- College of Chemical Engineering Zhejiang University of Technology Hangzhou Zhejiang Province 310032 China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
| | - Zhenlu Shen
- College of Chemical Engineering Zhejiang University of Technology Hangzhou Zhejiang Province 310032 China
| | - Furen Zhang
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province 312000 China
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48
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Mittal R, Awasthi SK. A Synergistic Magnetically Retrievable Inorganic‐Organic Hybrid Metal Oxide Catalyst for Scalable Selective Oxidation of Alcohols to Aldehydes and Ketones. ChemCatChem 2021. [DOI: 10.1002/cctc.202101262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Rupali Mittal
- Chemical Biology Laboratory Department of Chemistry University of Delhi Delhi 110007 India
| | - Satish Kumar Awasthi
- Chemical Biology Laboratory Department of Chemistry University of Delhi Delhi 110007 India
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49
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Bonner A, Loftus A, Padgham AC, Baumann M. Forgotten and forbidden chemical reactions revitalised through continuous flow technology. Org Biomol Chem 2021; 19:7737-7753. [PMID: 34549240 DOI: 10.1039/d1ob01452h] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Continuous flow technology has played an undeniable role in enabling modern chemical synthesis, whereby a myriad of reactions can now be performed with greater efficiency, safety and control. As flow chemistry furthermore delivers more sustainable and readily scalable routes to important target structures a growing number of industrial applications are being reported. In this review we highlight the impact of flow chemistry on revitalising important chemical reactions that were either forgotten soon after their initial report as necessary improvements were not realised due to a lack of available technology, or forbidden due to unacceptable safety concerns relating to the experimental procedure. In both cases flow processing in combination with further reaction optimisation has rendered a powerful set of tools that make such transformations not only highly efficient but moreover very desirable due to a more streamlined construction of desired scaffolds. This short review highlights important contributions from academic and industrial laboratories predominantly from the last 5 years allowing the reader to gain an appreciation of the impact of flow chemistry.
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Affiliation(s)
- Arlene Bonner
- School of Chemistry, University College Dublin, Science Centre South, D04 N2E5, Dublin, Ireland.
| | - Aisling Loftus
- School of Chemistry, University College Dublin, Science Centre South, D04 N2E5, Dublin, Ireland.
| | - Alex C Padgham
- School of Chemistry, University College Dublin, Science Centre South, D04 N2E5, Dublin, Ireland.
| | - Marcus Baumann
- School of Chemistry, University College Dublin, Science Centre South, D04 N2E5, Dublin, Ireland.
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50
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Room-temperature electrochemical acetylene reduction to ethylene with high conversion and selectivity. Nat Catal 2021. [DOI: 10.1038/s41929-021-00640-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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