1
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Oshida K, Yuan K, Yamazaki Y, Tsukimura R, Nishio H, Nomoto K, Miura H, Shishido T, Jin X, Nozaki K. Hydrogen-Induced Formation of Surface Acid Sites on Pt/Al(PO 3) 3 Enables Remarkably Efficient Hydrogenolysis of C-O Bonds in Alcohols and Ethers. Angew Chem Int Ed Engl 2024; 63:e202403092. [PMID: 38415808 DOI: 10.1002/anie.202403092] [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: 02/13/2024] [Accepted: 02/28/2024] [Indexed: 02/29/2024]
Abstract
The hydrogenolysis of oxygenates such as alcohols and ethers is central to the biomass valorization and also a valuable transformation in organic synthesis. However, a mild and efficient catalyst system for the hydrogenolysis of a large variety of alcohols and ethers with various functional groups is still underdeveloped. Here, we report an aluminum metaphosphate-supported Pt nanoparticles (Pt/Al(PO3)3) for the hydrogenolysis of a wide variety of primary, secondary, and tertiary alkyl and benzylic alcohols, and dialkyl, aryl alkyl, and diaryl ethers, including biomass-derived furanic compounds, under mild conditions (0.1-1 atm of H2, as low as 70 °C). Mechanistic studies suggested that H2 induces formation of the surface Brønsted acid sites via its cleavage by supported Pt nanoparticles. Accordingly, the high efficiency and the wide applicability of the catalyst system are attributed to the activation and cleavage of C-O bonds by the hydrogen-induced Brønsted acid sites with the assistance of Lewis acidic Al sites on the catalyst surface. The high efficiency of the catalyst implies its potential application in energy-efficient biomass valorization or fine chemical synthesis.
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Affiliation(s)
- Kento Oshida
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kang Yuan
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yukari Yamazaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Rio Tsukimura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hidenori Nishio
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Katsutoshi Nomoto
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Xiongjie Jin
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Clobes ML, Kozliak EI, Kubátová A. Advancing Molecular Weight Determination of Lignin by Multi-Angle Light Scattering. Polymers (Basel) 2024; 16:477. [PMID: 38399853 PMCID: PMC10892000 DOI: 10.3390/polym16040477] [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: 01/04/2024] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Due to the complexity and recalcitrance of lignin, its chemical characterization is a key factor preventing the valorization of this abundant material. Multi-angle light scattering (MALS) is becoming a sought-after technique for absolute molecular weight (MW) determination of polymers and proteins. Lignin is a suitable candidate for MW determination via MALS, yet further investigation is required to confirm its absolute MW values and molecular size. Studies aiming to break down lignin into a variety of renewable products will benefit greatly from a simple and reliable determination method like MALS. Recent pioneering studies, discussed in this review, addressed several key challenges in lignin's MW characterization. Nevertheless, some lignin-specific issues still need to be considered for in-depth characterization. This study explores how MALS instrumentation manages the complexities of determining lignin's MW, e.g., with simultaneous fractionation and fluorescence interference mitigation. Additionally, we rationalize the importance of a more detailed light scattering analysis for lignin characterization, including aspects like the second virial coefficient and radius of gyration.
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Affiliation(s)
| | - Evguenii I. Kozliak
- Department of Chemistry, University of North Dakota, 151 Cornell St., Stop 9024, Grand Forks, ND 58202, USA;
| | - Alena Kubátová
- Department of Chemistry, University of North Dakota, 151 Cornell St., Stop 9024, Grand Forks, ND 58202, USA;
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3
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Ziwei W, Hao S, Yizhen C, Ben L, Yaowei X, Wanxia W, Kaiyue W, Mengheng L, Li G, Lei W. Thermal, photonic, and electrocatalysis in lignin depolymerization research. RSC Adv 2023; 13:32627-32640. [PMID: 37936635 PMCID: PMC10626394 DOI: 10.1039/d3ra06880c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 10/31/2023] [Indexed: 11/09/2023] Open
Abstract
In order to realize a sustainable bio-based future, it is essential to fully harness the potential of biomass, including lignin - a readily available biopolymer that ranks second in abundance and serves as a renewable source of aromatics. While lignin has traditionally been used for lower-value applications like fuel and power generation, unlocking its higher-value potential through diverse conversion and upgrading techniques is of paramount importance. This review focuses on the catalytic conversion of lignin, with a specific emphasis on selective depolymerization, a process that not only supports economically and environmentally sustainable biorefineries but also aligns with Green Chemistry principles, mitigating adverse environmental impacts. Furthermore, we provide a comprehensive discussion of reaction pathways and mechanisms, including C-O and C-C bond cleavage, among different catalysts. Lastly, we analyze and briefly discuss the prospects of rational catalyst design in biomass valorization.
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Affiliation(s)
- Wang Ziwei
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Shu Hao
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Chen Yizhen
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Liu Ben
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Xu Yaowei
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Wang Wanxia
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Wang Kaiyue
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
| | - Lei Mengheng
- China Tobacco Hubei Industrial Co., Ltd Wuhan 430040 China
- Hubei Xinye Reconstituted Tobacco Development Co., Ltd Wuhan 430056 China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory Wuhan 430040 China
| | - Guo Li
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology Heping Avenue 947 Wuhan 430081 China +86-027-6886-2335
| | - Wang Lei
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology Wuhan 430068 China
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4
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Zou W, Zhou H, Wang M. Photoinduced Biomimetic Room-Temperature C-O Bond Cleavage over Mn Doped CdS. CHEMSUSCHEM 2023; 16:e202300727. [PMID: 37486587 DOI: 10.1002/cssc.202300727] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/25/2023]
Abstract
Selective C-O bond cleavage is an efficient way for the biomass valorization to value-added chemicals, but is challenged to be operated at room temperature via conventional thermal catalysis. Herein, inspired from the DNA biosynthesis which involves a radical-mediated spin-center shift (SCS) C-O bond cleavage process, we report a biomimetic room-temperature C-O bond cleavage of vicinal diol (HOCHCH-OH). We construct a Mn doped CdS (Mn/CdS) as a photocatalyst to mimic the biologic SCS process. The Mn site plays pivotal role: (1) accelerates the photo-induced carrier separation, promoting the hole-mediated C-H bond cleavage to generate carbon-centered radicals, and (2) serves as the binding site for -OH groups, making it to be an easier leaving group. Mn/CdS achieves 0.28 mmol gcat -1 h-1 of hydroxyacetone (HA) from glycerol dehydration at room temperature under visible light irradiation, which is 3.5-fold that over pristine CdS and 40-fold that over bulk MnS/CdS. This study provides a new biomimetic room-temperature C-O bond cleavage process, which is promising for the biomass valorization.
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Affiliation(s)
- Wenjing Zou
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
| | - Hongru Zhou
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
| | - Min Wang
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
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5
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Polidoro D, Selva M, Luque R. Continuous Flow Hydrogenation of Lignin-model Aromatic Compounds over Carbon-supported Noble Metals. CHEMSUSCHEM 2023; 16:e202300318. [PMID: 37014114 DOI: 10.1002/cssc.202300318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
An efficient continuous-flow (CF) protocol was designed for the hydrogenation of lignin-derived aromatics to the corresponding cycloalkanes derivatives. A parametric analysis of the reaction was carried out by tuning the temperature, the H2 pressure and the flow rate, and using diphenyl ether (DPE) as a model substrate, commercial Ru/C as a catalyst, and isopropanol as a solvent: at 25 °C, 50 bar H2 , and a flow rate of 0.1 mL min-1 , dicyclohexyl ether was achieved in an 86 % selectivity, at quantitative conversion. By-products from the competitive C-O bond cleavage of DPE, cyclohexanol and cyclohexane, did not exceed 14 % in total. Remarkably, prolonged experiments demonstrated an excellent stability of the catalyst whose performance was unaltered for up to 420 min of time-of-stream. A substrate scope evaluation proved that under the same conditions used for DPE, a variety of substrates including alkoxy-, allyl-, and carbonyl-functionalized phenols, biphenyl, aryl benzyl- and phenethyl ethers (10 examples) yielded the ring-hydrogenated products with selectivity up to 99 % at complete conversion.
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Affiliation(s)
- Daniele Polidoro
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30175 -, Venezia Mestre, Italy
| | - Maurizio Selva
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30175 -, Venezia Mestre, Italy
| | - Rafael Luque
- Departamento de Quımica Organica, Universidad de Cordoba, Edificio Marie-Curie (C-3), Ctra Nnal IV, Km 396, 14071, Cordoba, Spain
- Universidad ECOTEC Km 13.5 Samborondón, Samborondón, EC092302, Ecuador
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6
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Yan P, Xi S, Peng H, Mitchell DRG, Harvey L, Drewery M, Kennedy EM, Zhu Z, Sankar G, Stockenhuber M. Facile and Eco-Friendly Approach To Produce Confined Metal Cluster Catalysts. J Am Chem Soc 2023; 145:9718-9728. [PMID: 37084330 DOI: 10.1021/jacs.3c01304] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
Zeolite-supported metal nanocluster catalysts have attracted significant attention due to their broad application in heterogeneously catalyzed reactions. The preparation of highly dispersed metal catalysts commonly involves the use of organic compounds and requires the implementation of complicated procedures, which are neither green nor deployable at the large scale. Herein, we present a novel facile method (vacuum-heating) which employs a specific thermal vacuum processing protocol of catalysts to promote the decomposition of metal precursors. The removal of coordinated H2O via vacuum-heating restricts the formation of intermediates (metal-bound OH species), resulting in catalysts with a uniform, metal nanocluster distribution. The structure of the intermediate was determined by in situ Fourier transform infrared, temperature-programmed decomposition, and X-ray absorption spectroscopy (XAS) measurements. This alternative synthesis method is eco-friendly and cost-effective as the procedure occurs in the absence of organic compounds. It can be widely used for the preparation of catalysts from different metal species (Ni, Fe, Cu, Co, Zn) and precursors and is readily scaled-up.
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Affiliation(s)
- Penghui Yan
- Chemical Engineering, School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
- School of Chemical Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island 627833, Singapore
| | - Hong Peng
- School of Chemical Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - David R G Mitchell
- Electron Microscopy Centre, AIIM Building, Innovation Campus, University of Wollongong, Fairy Meadow, NSW 2519, Australia
| | - Luke Harvey
- Chemical Engineering, School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Matthew Drewery
- Chemical Engineering, School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Eric M Kennedy
- Chemical Engineering, School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Zhonghua Zhu
- School of Chemical Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Gopinathan Sankar
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Michael Stockenhuber
- Chemical Engineering, School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia
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7
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Ji N, Alemayehu A, Li H, Ri P, Diao X. Enhanced demethylation of aromatic ether to phenol over NiAl hydrotalcite-derived nickel sulfide catalyst. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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8
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Jiang W, Cao JP, He ZM, Zhu C, Feng XB, Zhao XY, Zhao YP, Bai HC. Highly selective hydrogenation of arenes over Rh nanoparticles immobilized on α-Al2O3 support at room temperature. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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9
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Han P, Mao X, Jin Y, Sarina S, Jia J, Waclawik ER, Du A, Bottle SE, Zhao JC, Zhu HY. Plasmonic Silver-Nanoparticle-Catalysed Hydrogen Abstraction from the C(sp 3 )-H Bond of the Benzylic C α atom for Cleavage of Alkyl Aryl Ether Bonds. Angew Chem Int Ed Engl 2023; 62:e202215201. [PMID: 36450692 PMCID: PMC10108273 DOI: 10.1002/anie.202215201] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
Selective activation of the C(sp3 )-H bond is an important process in organic synthesis, where efficiently activating a specific C(sp3 )-H bond without causing side reactions remains one of chemistry's great challenges. Here we report that illuminated plasmonic silver metal nanoparticles (NPs) can abstract hydrogen from the C(sp3 )-H bond of the Cα atom of an alkyl aryl ether β-O-4 linkage. The intense electromagnetic near-field generated at the illuminated plasmonic NPs promotes chemisorption of the β-O-4 compound and the transfer of photo-generated hot electrons from the NPs to the adsorbed molecules leads to hydrogen abstraction and direct cleavage of the unreactive ether Cβ -O bond under moderate reaction conditions (≈90 °C). The plasmon-driven process has certain exceptional features: enabling hydrogen abstraction from a specific C(sp3 )-H bond, along with precise scission of the targeted C-O bond to form aromatic compounds containing unsaturated, substituted groups in excellent yields.
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Affiliation(s)
- Pengfei Han
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.,School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Xin Mao
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Yichao Jin
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Sarina Sarina
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Jianfeng Jia
- School of Chemical and Material Science, Shanxi Normal University, Linfen, 041000, P. R. China
| | - Eric R Waclawik
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Aijun Du
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Steven E Bottle
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
| | - Jin-Cai Zhao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huai-Yong Zhu
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
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10
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Xie JX, Cao JP, Jiang W, Zhao YP, Zhao XY, Zhang C, Cong HL, Bai HC. Nickel Loaded on Porous Activated Carbons Derived from Waste Sugar Residue with Superior Catalytic Hydrogenolysis Performance. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jin-Xuan Xie
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
| | - Jing-Pei Cao
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
- College of Materials Engineering, Xuzhou College of Industrial Technology, Xuzhou221140, Jiangsu, China
- State Key Laboratory of High-Efficient Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan750021, Ningxia, China
| | - Wei Jiang
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
| | - Yun-Peng Zhao
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
| | - Xiao-Yan Zhao
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
| | - Chuang Zhang
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining & Technology, Xuzhou221116, Jiangsu, China
| | - Hou-Luo Cong
- College of Materials Engineering, Xuzhou College of Industrial Technology, Xuzhou221140, Jiangsu, China
| | - Hong-Cun Bai
- State Key Laboratory of High-Efficient Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan750021, Ningxia, China
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11
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Yiin CL, Odita EB, Mun Lock SS, Cheah KW, Chan YH, Wong MK, Chin BLF, Quitain AT, Loh SK, Yusup S. A review on potential of green solvents in hydrothermal liquefaction (HTL) of lignin. BIORESOURCE TECHNOLOGY 2022; 364:128075. [PMID: 36220532 DOI: 10.1016/j.biortech.2022.128075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
One of the greatest challenges in biorefinery is to reduce biomass' recalcitrance and enable valorization of lignin into higher value compounds. Likewise, green solvents and hydrothermal liquefaction (HTL) with feasible economic viability, functionality, and environmental sustainability have been widely introduced in extraction and conversion of lignin. This review starts with the underscore of disadvantages and limitations of conventional pretreatment approaches and role of green solvents in lignin extraction. Subsequently, the effect of process parameters along with the reaction mechanisms and kinetics on conversion of lignin through HTL were comprehensively reviewed. The limitations of green solvents in extraction and HTL of lignin from biomass were discussed based on the current advancements of the field and future research scopes were also proposed. More details info on HTL of biomass derived lignin which avoid the energy-intensive drying procedures are crucial for the accelerated development and deployment of the advanced lignin biorefinery.
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Affiliation(s)
- Chung Loong Yiin
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Sarawak, Malaysia; Institute of Renewable and Sustainable Energy (ISuRE), Universiti Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Sarawak, Malaysia.
| | - Elatta Bin Odita
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Sarawak, Malaysia
| | - Serene Sow Mun Lock
- CO(2) Research Center (CO(2)RES), Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
| | - Kin Wai Cheah
- School of Computing, Engineering and Digital Technologies, Teesside University, Middlesbrough TS1 3BX, United Kingdom
| | - Yi Herng Chan
- PETRONAS Research Sdn. Bhd. (PRSB), Lot 3288 & 3289, off Jalan Ayer Itam, Kawasan Institusi Bangi, 43000 Kajang, Selangor, Malaysia
| | - Mee Kee Wong
- PETRONAS Research Sdn. Bhd. (PRSB), Lot 3288 & 3289, off Jalan Ayer Itam, Kawasan Institusi Bangi, 43000 Kajang, Selangor, Malaysia
| | - Bridgid Lai Fui Chin
- Department of Chemical and Energy Engineering, Faculty of Engineering and Science, Curtin University Malaysia, 250 CDT, 98009 Miri, Sarawak, Malaysia; Energy and Environment Research Cluster, Faculty of Engineering and Science, Curtin University Malaysia, 250 CDT, 98009 Miri, Sarawak, Malaysia
| | - Armando T Quitain
- Center for International Education, Kumamoto University, Kumamoto 860-8555, Japan; International Research Organization for Advanced Science and Technology (IROAST), Kumamoto University, Kumamoto 860-8555, Japan
| | - Soh Kheang Loh
- Energy and Environment Unit, Engineering and Processing Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia
| | - Suzana Yusup
- Fuel and Combustion Section, Generation Unit, Department of Generation & Environment, Tenaga Nasional Berhad Research (TNBR) Sdn Bhd, No. 1, Kawasan Institusi Penyelidikan, Jalan Ayer Hitam, 43000 Kajang, Selangor, Malaysia
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12
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Mechanistic study on the depolymerization of typical lignin-derived oligomers catalyzed by Pd/NbOPO4. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Schmid J, Wang M, Gutiérrez OY, Bullock RM, Camaioni DM, Lercher JA. Controlling Reaction Routes in Noble‐Metal‐Catalyzed Conversion of Aryl Ethers. Angew Chem Int Ed Engl 2022; 61:e202203172. [PMID: 35482977 PMCID: PMC9400965 DOI: 10.1002/anie.202203172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Julian Schmid
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
| | - Meng Wang
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
| | - Oliver Y. Gutiérrez
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
| | - R. Morris Bullock
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
| | - Donald M. Camaioni
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
| | - Johannes A. Lercher
- Institute for Integrated Catalysis Pacific Northwest National Laboratory (PNNL) P.O. Box 999 Richland WA 99352 USA
- Department of Chemistry and Catalysis Research Institute Technische Universität München Lichtenbergstrasse 4 85748 Garching Germany
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14
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Jiang L, Xu G, Fu Y. Catalytic Cleavage of the C–O Bond in Lignin and Lignin-Derived Aryl Ethers over Ni/AlP yO x Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Jiang
- Anhui Province Key Laboratory of Biomass Clean Energy, CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Guangyue Xu
- Anhui Province Key Laboratory of Biomass Clean Energy, CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Yao Fu
- Anhui Province Key Laboratory of Biomass Clean Energy, CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
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15
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Schmid J, Wang M, Gutiérrez OY, Bullock RM, Camaioni DM, Lercher J. Controlling Reaction Routes in Noble‐Metal‐Catalyzed Conversion of Aryl Ethers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203172] [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]
Affiliation(s)
- Julian Schmid
- Pacific Northwest National Laboratory Institute for Integrated Catalysis UNITED STATES
| | - Meng Wang
- Pacific Northwest National Laboratory Institute for Integrated Catalysis UNITED STATES
| | - Oliver Y. Gutiérrez
- Pacific Northwest National Laboratory Institute for Integrated Catalysis UNITED STATES
| | - R. Morris Bullock
- Pacific Northwest National Laboratory Institute for Integrated Catalysis UNITED STATES
| | - Donald M. Camaioni
- Pacific Northwest National Laboratory Institute for Integrated Catalysis UNITED STATES
| | - Johannes Lercher
- Technische Universität München Department Chemie Lichtenbergstrasse 4 85748 Garching GERMANY
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16
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Zhou Y, Klinger GE, Hegg EL, Saffron CM, Jackson JE. Skeletal Ni electrode-catalyzed C-O cleavage of diaryl ethers entails direct elimination via benzyne intermediates. Nat Commun 2022; 13:2050. [PMID: 35440551 PMCID: PMC9018776 DOI: 10.1038/s41467-022-29555-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 03/11/2022] [Indexed: 11/20/2022] Open
Abstract
Diaryl ethers undergo electrocatalytic hydrogenolysis (ECH) over skeletal Ni cathodes in a mild, aqueous process that achieves direct C-O cleavage without initial benzene ring saturation. Mechanistic studies find that aryl phenyl ethers with a single para or meta functional group (methyl, methoxy, or hydroxy) are selectively cleaved to the substituted benzene and phenol, in contrast to recently reported homogeneous catalytic cleavage processes. Ortho positioning of substituents reverses this C-O bond selectivity, except for the 2-phenoxyphenol case. Together with isotope labeling and co-solvent studies, these results point to two distinct cleavage mechanisms: (a) dual-ring coordination and C-H activation, leading to vicinal elimination to form phenol and a surface-bound aryne intermediate which is then hydrogenated and released as the arene; and (b) surface binding in keto form by the phenolic ring of the hydroxy-substituted substrates, followed by direct displacement of the departing phenol. Notably, acetone inhibits the well-known reduction of phenol to cyclohexanol, affording control of product ring saturation. A byproduct of this work is the discovery that the ECH treatment completely defluorinates substrates bearing aromatic C-F and C-CF3 groupings. Biomass conversion holds promise as a more sustainable source of platform chemicals, but limitations in the ways in which lignin can be broken down is a current bottleneck. Here the authors report an electrocatalytic hydrogenolysis over skeletal Ni that cleaves diaryl ethers, chemically resistant moieties in both renewable carbon sources and persistent organic pollutants.
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Affiliation(s)
- Yuting Zhou
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA.
| | - Grace E Klinger
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA.,Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Eric L Hegg
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Christopher M Saffron
- Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI, 48824, USA.,Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, MI, 48824, USA
| | - James E Jackson
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA.
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17
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Catalytic Hydrodeoxygenation of Guaiacol to Cyclohexanol over Bimetallic NiMo-MOF-Derived Catalysts. Catalysts 2022. [DOI: 10.3390/catal12040371] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Lignin is an attractive renewable source of aromatics with a low effective hydrogen to carbon ratio (H/Ceff). The catalytic hydrodeoxygenation (HDO) of lignin-derived model compounds is a key strategy for lignin upgrading. In this work, the HDO of guaiacol, a typical lignin-derived compound, was carried out over metal–organic framework (MOF)-derived Ni-based catalysts. A monometallic Ni-MOF catalyst and different ratios of bimetallic NiMo-MOF catalysts were synthesized by a hydrothermal process, followed by a carbonization process. Among these catalysts, Ni3Mo1@C exhibited an excellent catalytic performance, affording a guaiacol conversion of 98.8% and a cyclohexanol selectivity of 66.8% at 240 °C and 2 MPa H2 for 4 h. The addition of Mo decreased the particle size of the spherical structure and improved the dispersion of metal particles. The synergistic effect between Ni and Mo was confirmed by various means, including ICP, XRD, SEM, TEM, and NH3-TPD analyses. In addition, the effect of the reaction temperature, time, and H2 pressure during the HDO process is discussed in detail.
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18
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Zhao Z, Gao G, Xi Y, Wang J, Sun P, Liu Q, Yan W, Cui Y, Jiang Z, Li F. Selective and stable upgrading of biomass-derived furans into plastic monomers by coupling homogeneous and heterogeneous catalysis. Chem 2022. [DOI: 10.1016/j.chempr.2021.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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He H, Luo D, Ma H, Xia S. Mechanistic effects of solvent systems on the Ni–Sn-catalyzed hydrodeoxygenation of lignin derivatives to none-oxygenates. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01965a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of water on the organic reaction system and bimetallic Ni–Sn catalyst and the solvent property analysis of the cresol hydrodeoxygenation process to produce completely deoxidised product selective promoters.
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Affiliation(s)
- Han He
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Ding Luo
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Hao Ma
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Shuqian Xia
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
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20
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Ahorsu R, Constanti M, Medina F. Recent Impacts of Heterogeneous Catalysis in Biorefineries. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02789] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Richard Ahorsu
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - Magda Constanti
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - Francesc Medina
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, 43007, Tarragona, Spain
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21
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Rahaman MS, Tulaphol S, Molley A, Mills K, Hossain MA, Yelle D, Maihom T, Sathitsuksanoh N. Metal triflate formation of C 12-C 22 phenolic compounds by the simultaneous C-O breaking and C-C coupling of benzyl phenyl ether. Dalton Trans 2021; 50:17390-17396. [PMID: 34792048 DOI: 10.1039/d1dt02136b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Catalytic pathways to produce high carbon number compounds from benzyl phenyl ether require multiple steps to break the aryl etheric carbon-oxygen bonds; these steps are followed by energy-intensive processes to remove oxygen atoms and/or carbon-carbon coupling. Here, we show an upgrading strategy to transform benzyl phenyl ether into large phenolic (C12-C22) compounds by a one-step C-O breaking and C-C coupling catalyzed by metal triflates under a mild condition (100 °C and 1 bar). Hafnium triflate was the most selective for the desired products. In addition, we measured the effect of solvent polarity on the catalytic performance. Solvents with a polarity index of less than 3.4 promoted the catalytic activity and selectivity to C12-C22 phenolic products. These C12-C22 phenolic compounds have potential applications for phenol-formaldehyde polymers, diesel/jet fuels, and liquid organic hydrogen carriers.
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Affiliation(s)
| | - Sarttrawut Tulaphol
- Sustainable Polymer & Innovative Composite Materials Research Group, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Ashten Molley
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Kyle Mills
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Md Anwar Hossain
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Daniel Yelle
- USDA, Forest Products Laboratory, Madison, WI, 53726, USA
| | - Thana Maihom
- Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
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22
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Tang D, Huang X, Tang W, Jin Y. Lignin-to-chemicals: Application of catalytic hydrogenolysis of lignin to produce phenols and terephthalic acid via metal-based catalysts. Int J Biol Macromol 2021; 190:72-85. [PMID: 34480907 DOI: 10.1016/j.ijbiomac.2021.08.188] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/06/2021] [Accepted: 08/25/2021] [Indexed: 01/11/2023]
Abstract
Lignin is the only renewable aromatic material in nature and contains a large number of oxygen-containing functional groups. High-value and green utilization of "lignin-to-chemicals" can be realized via using lignin to produce fine chemicals such as phenols and carboxylic acids, which can not only reduce the waste of lignin in the process of lignocellulosic biomass treatment, but gradually make the substitution of traditional fossil fuels come true. The hydrogenolysis process under catalysis of metal catalyst has high product selectivity and less impurity, which is suitable for the production of same type or single fine chemicals. Hydrogenolysis of lignin via metal catalysts to produce lignin oil, and further modification of functional groups (e.g. methoxyl, alkyl and hydroxyl group) of depolymerized monomers in the bio-oil to yeild phenols and terephthalic acid are reviewed, and catalytic mechanisms are briefly summarized in this paper. Finally, the problems of lignin catalytic conversion existing currently are investigated, and the future development of this field is also prospected.
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Affiliation(s)
- Daobin Tang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Xiaozhen Huang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Weizhong Tang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yanqiao Jin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China.
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23
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Zhu C, Ding S, Hojo H, Einaga H. Controlling Diphenyl Ether Hydrogenolysis Selectivity by Tuning the Pt Support and H-Donors under Mild Conditions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03999] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chen Zhu
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Siyu Ding
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hajime Hojo
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hisahiro Einaga
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
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24
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Zhou Y, Hu D, Li D, Jiang X. Uranyl-Photocatalyzed Hydrolysis of Diaryl Ethers at Ambient Environment for the Directional Degradation of 4-O-5 Lignin. JACS AU 2021; 1:1141-1146. [PMID: 34467354 PMCID: PMC8397364 DOI: 10.1021/jacsau.1c00168] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Uranyl-photocatalyzed hydrolysis of diaryl ethers has been established to achieve two types of phenols at room temperature under normal pressure. The single electron transfer process was disclosed by a radical quenching experiment and Stern-Volmer analysis between diphenyl ether and uranyl cation catalyst, followed by oxygen atom transfer process between radical cation of diphenyl ether and uranyl peroxide species. The 18O-labeling experiment precisely demonstrates that the oxygen source is water. Further application in template substrates of 4-O-5 linkages from lignin and 30-fold efficiency of flow operation display the potential application for phenol recovery via an ecofriendly and low-energy consumption protocol.
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Affiliation(s)
- Yilin Zhou
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Deqing Hu
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Daoji Li
- State
Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
- State
Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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25
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Yun YS, Berdugo-Díaz CE, Flaherty DW. Advances in Understanding the Selective Hydrogenolysis of Biomass Derivatives. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02866] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yang Sik Yun
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Claudia E. Berdugo-Díaz
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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26
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Wu D, Wang Q, Safonova OV, Peron DV, Zhou W, Yan Z, Marinova M, Khodakov AY, Ordomsky VV. Lignin Compounds to Monoaromatics: Selective Cleavage of C-O Bonds over a Brominated Ruthenium Catalyst. Angew Chem Int Ed Engl 2021; 60:12513-12523. [PMID: 33730419 DOI: 10.1002/anie.202101325] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 11/09/2022]
Abstract
The cleavage of C-O linkages in aryl ethers in biomass-derived lignin compounds without hydrogenation of the aromatic rings is a major challenge for the production of sustainable mono-aromatics. Conventional strategies over the heterogeneous metal catalysts require the addition of homogeneous base additives causing environmental problems. Herein, we propose a heterogeneous Ru/C catalyst modified by Br atoms for the selective direct cleavage of C-O bonds in diphenyl ether without hydrogenation of aromatic rings reaching the yield of benzene and phenol as high as 90.3 % and increased selectivity to mono-aromatics (97.3 vs. 46.2 % for initial Ru) during depolymerization of lignin. Characterization of the catalyst indicates selective poisoning by Br of terrace sites over Ru nanoparticles, which are active in the hydrogenation of aromatic rings, while the defect sites on the edges and corners remain available and provide higher intrinsic activity in the C-O bond cleavage.
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Affiliation(s)
- Dan Wu
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China.,Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Qiyan Wang
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China.,Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | | | - Deizi V Peron
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China
| | - Zhen Yan
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China
| | - Maya Marinova
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, 59000, Lille, France
| | - Andrei Y Khodakov
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Vitaly V Ordomsky
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
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27
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Wu D, Wang Q, Safonova OV, Peron DV, Zhou W, Yan Z, Marinova M, Khodakov AY, Ordomsky VV. Lignin Compounds to Monoaromatics: Selective Cleavage of C−O Bonds over a Brominated Ruthenium Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101325] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Dan Wu
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Qiyan Wang
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | | | - Deizi V. Peron
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
| | - Zhen Yan
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
| | - Maya Marinova
- Univ. Lille CNRS INRAE Centrale Lille Univ. Artois FR 2638 – IMEC – Institut Michel-Eugène Chevreul 59000 Lille France
| | - Andrei Y. Khodakov
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Vitaly V. Ordomsky
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
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28
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Hydrogenolysis of organosolv hydrolyzed lignin over high-dispersion Ni/Al-SBA-15 catalysts for phenolic monomers. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Antil N, Kumar A, Akhtar N, Newar R, Begum W, Dwivedi A, Manna K. Aluminum Metal–Organic Framework-Ligated Single-Site Nickel(II)-Hydride for Heterogeneous Chemoselective Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04379] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ajay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rajashree Newar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Wahida Begum
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ashutosh Dwivedi
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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30
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Xu L, Sun S, Zhang X, Gao H, Wang W. Study on the selective hydrogenation of isophorone. RSC Adv 2021; 11:4465-4471. [PMID: 35424410 PMCID: PMC8694553 DOI: 10.1039/d0ra08107h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/13/2020] [Indexed: 11/21/2022] Open
Abstract
3,3,5-Trimethylcyclohexanone (TMCH) is an important pharmaceutical intermediate and organic solvent, which has important industrial significance. The selective hydrogenation of isophorone was studied over noble metal (Pd/C, Pt/C, Ir/C, Ru/C, Pd/SiO2, Pt/SiO2, Ir/SiO2, Ru/SiO2), and non-noble metal (RANEY® Ni, RANEY® Co, RANEY® Cu, RANEY® Fe, Ni/SiO2, Co/SiO2, Cu/SiO2, Fe/SiO2) catalysts and using solvent-free and solvent based synthesis. The results show that the solvent has an important effect on the selectivity of TMCH. The selective hydrogenation of isophorone to TMCH can be influenced by the tetrahydrofuran solvent. The conversion of isophorone is 100%, and the yield of 3,3,5-trimethylcyclohexanone is 98.1% under RANEY® Ni and THF. The method was applied to the selective hydrogenation of isopropylidene acetone, benzylidene acetone and 6-methyl-5-ene-2-heptanone. The structures of the hydrogenation product target (4-methylpentan-2-one, 4-benzylbutan-2-one and 6-methyl-heptane-2-one) were characterized using 1H-NMR and 13C-NMR. The yields of 4-methylpentan-2-one, 4-benzylbutan-2-one and 6-methyl-heptane-2-one were 97.2%, 98.5% and 98.2%, respectively. The production cost can be reduced by using RANEY® metal instead of noble metal palladium. This method has good application prospects. The selective hydrogenation of isophorone to TMCH can be influenced by the tetrahydrofuran solvent. The conversion of isophorone is 100%, and the yield of 3,3,5-trimethylcyclohexanone is 98.1% under RANEY® Ni and THF.![]()
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Affiliation(s)
- Lei Xu
- School of Materials Science and Engineering, Shaanxi University of Technology No. 1 Dongyihuan Road Hanzhong 723001 China
| | - Shaoyin Sun
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology Hanzhong 723001 China +86 916 2641660
| | - Xing Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology Hanzhong 723001 China +86 916 2641660
| | - Haofei Gao
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology Hanzhong 723001 China +86 916 2641660
| | - Wei Wang
- Shaanxi Key Laboratory of Catalysis, School of Chemistry and Environment Science, Shaanxi University of Technology Hanzhong 723001 China +86 916 2641660
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31
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Sanyal U, Yuk SF, Koh K, Lee M, Stoerzinger K, Zhang D, Meyer LC, Lopez‐Ruiz JA, Karkamkar A, Holladay JD, Camaioni DM, Nguyen M, Glezakou V, Rousseau R, Gutiérrez OY, Lercher JA. Hydrogen Bonding Enhances the Electrochemical Hydrogenation of Benzaldehyde in the Aqueous Phase. Angew Chem Int Ed Engl 2021; 60:290-296. [PMID: 32770641 PMCID: PMC7821193 DOI: 10.1002/anie.202008178] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/27/2020] [Indexed: 11/11/2022]
Abstract
The hydrogenation of benzaldehyde to benzyl alcohol on carbon-supported metals in water, enabled by an external potential, is markedly promoted by polarization of the functional groups. The presence of polar co-adsorbates, such as substituted phenols, enhances the hydrogenation rate of the aldehyde by two effects, that is, polarizing the carbonyl group and increasing the probability of forming a transition state for H addition. These two effects enable a hydrogenation route, in which phenol acts as a conduit for proton addition, with a higher rate than the direct proton transfer from hydronium ions. The fast hydrogenation enabled by the presence of phenol and applied potential overcompensates for the decrease in coverage of benzaldehyde caused by competitive adsorption. A higher acid strength of the co-adsorbate increases the intensity of interactions and the rates of selective carbonyl reduction.
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Affiliation(s)
- Udishnu Sanyal
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Simuck F. Yuk
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Katherine Koh
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Mal‐Soon Lee
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Kelsey Stoerzinger
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
- School of Chemical, Biological and Environmental EngineeringOregon State UniversityCorvallisOR97331USA
| | - Difan Zhang
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Laura C. Meyer
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Juan A. Lopez‐Ruiz
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Abhi Karkamkar
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Jamie D. Holladay
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Donald M. Camaioni
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Manh‐Thuong Nguyen
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | | | - Roger Rousseau
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Oliver Y. Gutiérrez
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
| | - Johannes A. Lercher
- Institute for Integrated CatalysisPacific Northwest National LaboratoryP.O. Box 999RichlandWA99352USA
- Department of Chemistry and Catalysis Research Center InstitutionTU MünchenLichtenbergstrasse 485747GarchingGermany
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Sanyal U, Yuk SF, Koh K, Lee M, Stoerzinger K, Zhang D, Meyer LC, Lopez‐Ruiz JA, Karkamkar A, Holladay JD, Camaioni DM, Nguyen M, Glezakou V, Rousseau R, Gutiérrez OY, Lercher JA. Hydrogen Bonding Enhances the Electrochemical Hydrogenation of Benzaldehyde in the Aqueous Phase. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202008178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Udishnu Sanyal
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Simuck F. Yuk
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Katherine Koh
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Mal‐Soon Lee
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Kelsey Stoerzinger
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
- School of Chemical, Biological and Environmental Engineering Oregon State University Corvallis OR 97331 USA
| | - Difan Zhang
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Laura C. Meyer
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Juan A. Lopez‐Ruiz
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Abhi Karkamkar
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Jamie D. Holladay
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Donald M. Camaioni
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Manh‐Thuong Nguyen
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | | | - Roger Rousseau
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Oliver Y. Gutiérrez
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
| | - Johannes A. Lercher
- Institute for Integrated Catalysis Pacific Northwest National Laboratory P.O. Box 999 Richland WA 99352 USA
- Department of Chemistry and Catalysis Research Center Institution TU München Lichtenbergstrasse 4 85747 Garching Germany
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Visible-light photoredox-catalyzed C-O bond cleavage of diaryl ethers by acridinium photocatalysts at room temperature. Nat Commun 2020; 11:6126. [PMID: 33257656 PMCID: PMC7705023 DOI: 10.1038/s41467-020-19944-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 11/06/2020] [Indexed: 11/08/2022] Open
Abstract
Cleavage of C-O bonds in lignin can afford the renewable aryl sources for fine chemicals. However, the high bond energies of these C-O bonds, especially the 4-O-5-type diaryl ether C-O bonds (~314 kJ/mol) make the cleavage very challenging. Here, we report visible-light photoredox-catalyzed C-O bond cleavage of diaryl ethers by an acidolysis with an aryl carboxylic acid and a following one-pot hydrolysis. Two molecules of phenols are obtained from one molecule of diaryl ether at room temperature. The aryl carboxylic acid used for the acidolysis can be recovered. The key to success of the acidolysis is merging visible-light photoredox catalysis using an acridinium photocatalyst and Lewis acid catalysis using Cu(TMHD)2. Preliminary mechanistic studies indicate that the catalytic cycle occurs via a rare selective electrophilic attack of the generated aryl carboxylic radical on the electron-rich aryl ring of the diphenyl ether. This transformation is applied to a gram-scale reaction and the model of 4-O-5 lignin linkages.
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Muldoon JA, Harvey BG. Bio-Based Cycloalkanes: The Missing Link to High-Performance Sustainable Jet Fuels. CHEMSUSCHEM 2020; 13:5777-5807. [PMID: 32810345 DOI: 10.1002/cssc.202001641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/14/2020] [Indexed: 05/12/2023]
Abstract
The development of sustainable energy solutions that reduce global carbon emissions, while maintaining high living standards, is one of the grand challenges of the current century. Transportation fuels are critical to economic development, globalization, and the advancement of society. Although ground vehicles and small aircraft are beginning a slow transition toward electric propulsion with energy sourced from solar radiation or wind, the extreme power requirements of jet aircraft require a more concentrated source of energy that is conveniently provided by liquid hydrocarbon fuels. This Review describes recent efforts to develop efficient routes for the conversion of crude biomass sources (e. g., lignocellulose) to cycloalkanes. These cycloalkanes impart advantageous properties to jet fuels, including increased density, higher volumetric heat of combustion, and enhanced operability. The combination of bio-based cycloalkanes and synthetic paraffinic kerosenes allows for the preparation of 100 % bio-based fuels that can outperform conventional petroleum-based fuels. In this Review methods are described that convert biomass-derived small molecules, including furfural, furfuryl alcohol, 5-hydroxymethylfurfural, cyclic ketones, phenolics, acyclic ketones, cyclic alcohols, furans, esters, and alkenes to high-density cycloalkanes. In addition to describing the chemical transformations and catalysts that have been developed to efficiently produce various cycloalkanes, this Review includes summaries of key fuel properties, which highlight the ability to generate fuels with customized performance metrics. This work is intended to inspire other researchers to study the conversion of sustainable feedstocks to full-performance aviation fuels. An acceleration of this research is critical to reducing the carbon footprint of commercial and military aviation on a timescale that will help blunt the impacts of global warming.
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Affiliation(s)
- Jake A Muldoon
- US NAVY, NAWCWD, Research Department, Chemistry Branch, China Lake, California, 93555, USA
| | - Benjamin G Harvey
- US NAVY, NAWCWD, Research Department, Chemistry Branch, China Lake, California, 93555, USA
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Wang Q, Chen Y, Yang G, Deng P, Lu X, Ma R, Fu Y, Zhu W. Low‐Temperature Catalytic Hydrogenolysis of Guaiacol to Phenol over Al‐Doped SBA‐15 Supported Ni Catalysts. ChemCatChem 2020. [DOI: 10.1002/cctc.202000712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qiuyue Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Yufang Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Guanheng Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Ping Deng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Xinqing Lu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Rui Ma
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Yanghe Fu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
| | - Weidong Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004 P. R. China
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Jing Y, Dong L, Guo Y, Liu X, Wang Y. Chemicals from Lignin: A Review of Catalytic Conversion Involving Hydrogen. CHEMSUSCHEM 2020; 13:4181-4198. [PMID: 31886600 DOI: 10.1002/cssc.201903174] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/27/2019] [Indexed: 05/14/2023]
Abstract
Lignin is the most abundant biopolymer with aromatic building blocks and its valorization to sustainable chemicals and fuels has extremely great potential to reduce the excessive dependence on fossil resources, although such conversions remain challenging. The purpose of this Review is to present an insight into the catalytic conversion of lignin involving hydrogen, including reductive depolymerization and the hydrodeoxygenation of lignin-derived monomers to arenes, cycloalkanes and phenols, with a main focus on the catalyst systems and reaction mechanisms. The roles of hydrogenation sites (Ru, Pt, Pd, Rh) and acid sites (Nb, Ti, Mo), as well as their interaction in selective hydrodeoxygenation reactions are emphasized. Furthermore, some inspirational strategies for the production of other value-added chemicals are mentioned. Finally, some personal perspectives are provided to highlight the opportunities within this attractive field.
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Affiliation(s)
- Yaxuan Jing
- Shanghai Key Laboratory of Functional Materials Chemistry and Research, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Lin Dong
- Shanghai Key Laboratory of Functional Materials Chemistry and Research, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Yong Guo
- Shanghai Key Laboratory of Functional Materials Chemistry and Research, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Xiaohui Liu
- Shanghai Key Laboratory of Functional Materials Chemistry and Research, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China
| | - Yanqin Wang
- Shanghai Key Laboratory of Functional Materials Chemistry and Research, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, P.R. China
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Lahive CW, Kamer PCJ, Lancefield CS, Deuss PJ. An Introduction to Model Compounds of Lignin Linking Motifs; Synthesis and Selection Considerations for Reactivity Studies. CHEMSUSCHEM 2020; 13:4238-4265. [PMID: 32510817 PMCID: PMC7540175 DOI: 10.1002/cssc.202000989] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 05/31/2023]
Abstract
The development of fundamentally new valorization strategies for lignin plays a vital role in unlocking the true potential of lignocellulosic biomass as sustainable and economically compatible renewable carbon feedstock. In particular, new catalytic modification and depolymerization strategies are required. Progress in this field, past and future, relies for a large part on the application of synthetic model compounds that reduce the complexity of working with the lignin biopolymer. This aids the development of catalytic methodologies and in-depth mechanistic studies and guides structural characterization studies in the lignin field. However, due to the volume of literature and the piecemeal publication of methodology, the choice of suitable lignin model compounds is far from straight forward, especially for those outside the field and lacking a background in organic synthesis. For example, in catalytic depolymerization studies, a balance between synthetic effort and fidelity compared to the actual lignin of interest needs to be found. In this Review, we provide a broad overview of the model compounds available to study the chemistry of the main native linking motifs typically found in lignins from woody biomass, the synthetic routes and effort required to access them, and discuss to what extent these represent actual lignin structures. This overview can aid researchers in their selection of the most suitable lignin model systems for the development of emerging lignin modification and depolymerization technologies, maximizing their chances of successfully developing novel lignin valorization strategies.
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Affiliation(s)
- Ciaran W. Lahive
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Paul C. J. Kamer
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Christopher S. Lancefield
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Peter J. Deuss
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
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Li Y, Karlen SD, Demir B, Kim H, Luterbacher J, Dumesic JA, Stahl SS, Ralph J. Mechanistic Study of Diaryl Ether Bond Cleavage during Palladium-Catalyzed Lignin Hydrogenolysis. CHEMSUSCHEM 2020; 13:4487-4494. [PMID: 32202385 DOI: 10.1002/cssc.202000753] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Indexed: 06/10/2023]
Abstract
Hydrogenolysis has emerged as one of the most effective means of converting polymeric lignin into monoaromatic fragments of value. Reported yields may be higher than for other methods and can exceed the theoretical yields estimated from measures of the content of lignin's most readily cleaved alkyl-aryl ether bonds in β-ether units. The high yields suggest that other units in lignin are being cleaved. Diaryl ether units are important units in lignin, and their cleavage has been examined previously using simple model compounds, such as diphenyl ether. Herein, the hydrogenolysis of model compounds that closely resemble the native lignin 4-O-5 diaryl ether units was analyzed. The results provided unexpected insights into the reactivity and partial cleavage of these compounds. The models and lignin polymer produced not only monomers, but also unusual 1,3,5-meta-substituted aromatics that appear to be diagnostic for the presence and the cleavage of the 4-O-5 diaryl ether unit in lignin.
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Affiliation(s)
- Yanding Li
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Steven D Karlen
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Benginur Demir
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Hoon Kim
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Jeremy Luterbacher
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Route Cantonale, 1015, Lausanne, Switzerland
| | - James A Dumesic
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Shannon S Stahl
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - John Ralph
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
- DOE Great Lakes Bioenergy Research Center, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
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Abstract
Catalytic cleavage of strong bonds including hydrogen-hydrogen, carbon-oxygen, and carbon-hydrogen bonds is a highly desired yet challenging fundamental transformation for the production of chemicals and fuels. Transition metal-containing catalysts are employed, although accompanied with poor selectivity in hydrotreatment. Here we report metal-free nitrogen-assembly carbons (NACs) with closely-placed graphitic nitrogen as active sites, achieving dihydrogen dissociation and subsequent transformation of oxygenates. NACs exhibit high selectivity towards alkylarenes for hydrogenolysis of aryl ethers as model bio-oxygenates without over-hydrogeneration of arenes. Activities originate from cooperating graphitic nitrogen dopants induced by the diamine precursors, as demonstrated in mechanistic and computational studies. We further show that the NAC catalyst is versatile for dehydrogenation of ethylbenzene and tetrahydroquinoline as well as for hydrogenation of common unsaturated functionalities, including ketone, alkene, alkyne, and nitro groups. The discovery of nitrogen assembly as active sites can open up broad opportunities for rational design of new metal-free catalysts for challenging chemical reactions. Metal-free catalysts can offer uniquely different activity and selectivity from transition metal-based counterparts. Here, the authors report metal-free nitrogen-assembly carbon with closely-placed nitrogen as active sites, achieving catalytic cleavage of strong bonds including H-H, C-O and C-H.
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Chen X, Chen X, Qi J, Liang C. Self-assembly synthesis of lamellar molybdenum carbides with controllable phases for hydrodeoxygenation of diphenyl ether. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhu G, Shi S, Zhao L, Liu M, Gao J, Xu J. Catalytic Activation of Carbon–Hydrogen Bonds in Lignin Linkages over Strong-Base-Modified Covalent Triazine Frameworks for Lignin Oxidative Cleavage. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00247] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guozhi Zhu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Song Shi
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Li Zhao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Meng Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jin Gao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jie Xu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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Phan DP, Lee EY. Controlled hydrogenolysis over heterogeneous catalysts for lignin valorization. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1770401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Dieu-Phuong Phan
- Department of Chemical Engineering, Kyung Hee University, Yongin-si, Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering, Kyung Hee University, Yongin-si, Korea
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Stabilization strategies in biomass depolymerization using chemical functionalization. Nat Rev Chem 2020; 4:311-330. [PMID: 37127959 DOI: 10.1038/s41570-020-0187-y] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2020] [Indexed: 12/26/2022]
Abstract
A central feature of most lignocellulosic-biomass-valorization strategies is the depolymerization of all its three major constituents: cellulose and hemicellulose to simple sugars, and lignin to phenolic monomers. However, reactive intermediates, generally resulting from dehydration reactions, can participate in undesirable condensation pathways during biomass deconstruction, which have posed fundamental challenges to commercial biomass valorization. Thus, new strategies specifically aim to suppress condensations of reactive intermediates, either avoiding their formation by functionalizing the native structure or intermediates or selectively transforming these intermediates into stable derivatives. These strategies have provided unforeseen upgrading pathways, products and process solutions. In this Review, we outline the molecular driving forces that shape the deconstruction landscape and describe the strategies for chemical functionalization. We then offer an outlook on further developments and the potential of these strategies to sustainably produce renewable-platform chemicals.
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Cook A, Prakash S, Zheng YL, Newman SG. Exhaustive Reduction of Esters Enabled by Nickel Catalysis. J Am Chem Soc 2020; 142:8109-8115. [PMID: 32319766 DOI: 10.1021/jacs.0c02405] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report a one-step procedure to directly reduce unactivated aryl esters into their corresponding tolyl derivatives. This is achieved by an organosilane-mediated ester hydrosilylation reaction and subsequent Ni/NHC-catalyzed hydrogenolysis. The resulting conditions provide a direct and efficient alternative to multi-step procedures for this transformation that often require the use of hazardous metal hydrides. Applications in the synthesis of -CD3-containing products, derivatization of bioactive molecules, and chemoselective reduction in the presence of other C-O bonds are demonstrated.
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Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Sekar Prakash
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Yan-Long Zheng
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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Sang Y, Chen M, Yan F, Wu K, Bai Y, Liu Q, Chen H, Li Y. Catalytic Depolymerization of Enzymatic Hydrolysis Lignin into Monomers over an Unsupported Nickel Catalyst in Supercritical Ethanol. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00812] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yushuai Sang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Mengmeng Chen
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Fei Yan
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Kai Wu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Bai
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Qingfeng Liu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hong Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yongdan Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin Key Laboratory of Applied Catalysis Science and Technology, State Key Laboratory of Chemical Engineering (Tianjin University), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Kemistintie 1, Espoo, P. O. Box 16100, FI-00076, Finland
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Zhou Y, Klinger GE, Hegg EL, Saffron CM, Jackson JE. Multiple Mechanisms Mapped in Aryl Alkyl Ether Cleavage via Aqueous Electrocatalytic Hydrogenation over Skeletal Nickel. J Am Chem Soc 2020; 142:4037-4050. [PMID: 32017546 DOI: 10.1021/jacs.0c00199] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We present here detailed mechanistic studies of electrocatalytic hydrogenation (ECH) in aqueous solution over skeletal nickel cathodes to probe the various paths of reductive catalytic C-O bond cleavage among functionalized aryl ethers relevant to energy science. Heterogeneous catalytic hydrogenolysis of aryl ethers is important both in hydrodeoxygenation of fossil fuels and in upgrading of lignin from biomass. The presence or absence of simple functionalities such as carbonyl, hydroxyl, methyl, or methoxyl groups is known to cause dramatic shifts in reactivity and cleavage selectivity between sp3 C-O and sp2 C-O bonds. Specifically, reported hydrogenolysis studies with Ni and other catalysts have hinted at different cleavage mechanisms for the C-O ether bonds in α-keto and α-hydroxy β-O-4 type aryl ether linkages of lignin. Our new rate, selectivity, and isotopic labeling results from ECH reactions confirm that these aryl ethers undergo C-O cleavage via distinct paths. For the simple 2-phenoxy-1-phenylethane or its alcohol congener, 2-phenoxy-1-phenylethanol, the benzylic site is activated via Ni C-H insertion, followed by beta elimination of the phenoxide leaving group. But in the case of the ketone, 2-phenoxyacetophenone, the polarized carbonyl π system apparently binds directly with the electron rich Ni cathode surface without breaking the aromaticity of the neighboring phenyl ring, leading to rapid cleavage. Substituent steric and electronic perturbations across a broad range of β-O-4 type ethers create a hierarchy of cleavage rates that supports these mechanistic ideas while offering guidance to allow rational design of the catalytic method. On the basis of the new insights, the usage of cosolvent acetone is shown to enable control of product selectivity.
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Song Y, Feng X, Chen JS, Brzezinski C, Xu Z, Lin W. Multistep Engineering of Synergistic Catalysts in a Metal–Organic Framework for Tandem C–O Bond Cleavage. J Am Chem Soc 2020; 142:4872-4882. [DOI: 10.1021/jacs.0c00073] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yang Song
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Justin S. Chen
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Carter Brzezinski
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Ziwan Xu
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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Zhang J, Li C, Guan W, Chen X, Chen X, Tsang CW, Liang C. Deactivation and Regeneration Study of a Co-Promoted MoO 3 Catalyst in Hydrogenolysis of Dibenzofuran. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Zhang
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Chuang Li
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Weixiang Guan
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Xiaozhen Chen
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Xiao Chen
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Chi-Wing Tsang
- Faculty of Science and Technology, Technological and Higher Education Institute of Hong Kong, Hong Kong 999077, China
| | - Changhai Liang
- State Key Laboratory of Fine Chemicals, Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
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De Saegher T, Lauwaert J, Hanssen J, Bruneel E, Van Zele M, Van Geem K, De Buysser K, Verberckmoes A. Monometallic Cerium Layered Double Hydroxide Supported Pd-Ni Nanoparticles as High Performance Catalysts for Lignin Hydrogenolysis. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E691. [PMID: 32033090 PMCID: PMC7040693 DOI: 10.3390/ma13030691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/29/2020] [Accepted: 02/01/2020] [Indexed: 02/03/2023]
Abstract
Monometallic cerium layered double hydroxides (Ce-LDH) supports were successfully synthesized by a homogeneous alkalization route driven by hexamethylenetetramine (HMT). The formation of the Ce-LDH was confirmed and its structural and compositional properties studied by XRD, SEM, XPS, iodometric analyses and TGA. HT-XRD, N2-sorption and XRF analyses revealed that by increasing the calcination temperature from 200 to 800 °C, the Ce-LDH material transforms to ceria (CeO2) in four distinct phases, i.e., the loss of intramolecular water, dehydroxylation, removal of nitrate groups and removal of sulfate groups. When loaded with 2.5 wt% palladium (Pd) and 2.5 wt% nickel (Ni) and calcined at 500 °C, the PdNi-Ce-LDH-derived catalysts strongly outperform the PdNi-CeO2 benchmark catalyst in terms of conversion as well as selectivity for the hydrogenolysis of benzyl phenyl ether (BPE), a model compound for the α-O-4 ether linkage in lignin. The PdNi-Ce-LDH catalysts showed full selectivity towards phenol and toluene while the PdNi-CeO2 catalysts showed additional oxidation of toluene to benzoic acid. The highest BPE conversion was observed with the PdNi-Ce-LDH catalyst calcined at 600 °C, which could be related to an optimum in morphological and compositional characteristics of the support.
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Affiliation(s)
- Tibo De Saegher
- Industrial Catalysis and Adsorption Technology (INCAT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium; (T.D.S.); (J.L.); (J.H.)
| | - Jeroen Lauwaert
- Industrial Catalysis and Adsorption Technology (INCAT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium; (T.D.S.); (J.L.); (J.H.)
| | - Jorku Hanssen
- Industrial Catalysis and Adsorption Technology (INCAT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium; (T.D.S.); (J.L.); (J.H.)
| | - Els Bruneel
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis (SCRiPTS), Department of Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S3, 9000 Ghent, Belgium; (E.B.); (M.V.Z.); (K.D.B.)
| | - Matthias Van Zele
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis (SCRiPTS), Department of Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S3, 9000 Ghent, Belgium; (E.B.); (M.V.Z.); (K.D.B.)
| | - Kevin Van Geem
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Technologiepark 125, 9052 Ghent, Belgium;
| | - Klaartje De Buysser
- Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis (SCRiPTS), Department of Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 S3, 9000 Ghent, Belgium; (E.B.); (M.V.Z.); (K.D.B.)
| | - An Verberckmoes
- Industrial Catalysis and Adsorption Technology (INCAT), Department of Materials, Textiles and Chemical Engineering (MaTCh), Faculty of Engineering and Architecture, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium; (T.D.S.); (J.L.); (J.H.)
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