1
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Koranchalil S, Lobo Justo Pinheiro D, Padilla R, Nielsen M. Homogeneous Catalyzed Direct Conversion of Furfural to Gamma-Valerolactone. CHEMSUSCHEM 2024; 17:e202301608. [PMID: 38415323 DOI: 10.1002/cssc.202301608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/18/2024] [Accepted: 02/27/2024] [Indexed: 02/29/2024]
Abstract
Herein, we report the direct conversion of biomass-derived furfural to γ-valerolactone (GVL) in a one-pot system, using the combination of Ru-MACHO-BH and a Brønsted acid (H3PO4). A GVL yield of 84 % is achieved under mild reaction conditions using 1 mol% of Ru-MACHO-BH and 3.8 M H3PO4(aq) at 100 °C for 7 hours.
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Affiliation(s)
- Sakhitha Koranchalil
- Department of Chemistry, Technical University of Denmark (DTU), Kemitorvet 207, DK-2800, Lyngby, Denmark
| | | | - Rosa Padilla
- Department of Chemistry, Technical University of Denmark (DTU), Kemitorvet 207, DK-2800, Lyngby, Denmark
| | - Martin Nielsen
- Department of Chemistry, Technical University of Denmark (DTU), Kemitorvet 207, DK-2800, Lyngby, Denmark
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2
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Bisarya A, Karim S, Narjinari H, Banerjee A, Arora V, Dhole S, Dutta A, Kumar A. Production of hydrogen from alcohols via homogeneous catalytic transformations mediated by molecular transition-metal complexes. Chem Commun (Camb) 2024; 60:4148-4169. [PMID: 38563372 DOI: 10.1039/d4cc00594e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Hydrogen obtained from renewable sources such as water and alcohols is regarded as an efficient clean-burning alternative to non-renewable fuels. The use of the so-called bio-H2 regardless of its colour will be a significant step towards achieving global net-zero carbon goals. Challenges still persist however with conventional H2 storage, which include low-storage density and high cost of transportation apart from safety concerns. Global efforts have thus focussed on liquid organic hydrogen carriers (LOHCs), which have shown excellent potential for H2 storage while allowing safer large-scale transformation and easy on-site H2 generation. While water could be considered as the most convenient liquid inorganic hydrogen carrier (LIHC) on a long-term basis, the utilization of alcohols as LOHCs to generate on-demand H2 has tasted instant success. This has helped to draw a road-map of futuristic H2 storage and transportation. The current review brings to the fore the state-of-the-art developments in hydrogen generation from readily available, feed-agnostic bio-alcohols as LOHCs using molecular transition-metal catalysts.
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Affiliation(s)
- Akshara Bisarya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Suhana Karim
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Anwesha Banerjee
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Sunil Dhole
- ChemDist Group of Companies, Plot No 144 A, Sector 7, PCNTDA, Bhosari Pune - 411026, Maharashtra, India
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India
- Jyoti and Bhupat Mehta School of Health Science & Technology Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India
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3
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Parthiban J, Awasthi MK, Kharde TA, Kalita K, Singh SK. Recent progress in molecular transition metal catalysts for hydrogen production from methanol and formaldehyde. Dalton Trans 2024; 53:4363-4389. [PMID: 38349644 DOI: 10.1039/d3dt03668e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Hydrogen is considered as a potential alternative and sustainable energy carrier, but its safe storage and transportation are still challenging due to its low volumetric energy density. Notably, C1-based substrates, methanol and formaldehyde, containing high hydrogen contents of 12.5 wt% and 6.7 wt%, respectively, can release hydrogen on demand in the presence of a suitable catalyst. Advantageously, both methanol and aqueous formaldehyde are liquid at room temperature, and hence can be stored and transported considerably more safely than hydrogen gas. Moreover, these C1-based substrates can be produced from biomass waste and can also be regenerated from CO2, a greenhouse gas. In this review, the recent progress in hydrogen production from methanol and formaldehyde over noble to non-noble metal complex-based molecular transition metal catalysts is extensively reviewed. This review also focuses on the critical role of the structure-activity relationship of the catalyst in the dehydrogenation pathway.
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Affiliation(s)
- Jayashree Parthiban
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Mahendra K Awasthi
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Tushar A Kharde
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Khanindra Kalita
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Sanjay Kumar Singh
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
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4
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Head M, Joseph BT, Keith JM, Chianese AR. The Mechanism of Markovnikov-Selective Epoxide Hydrogenolysis Catalyzed by Ruthenium PNN and PNP Pincer Complexes. Organometallics 2023; 42:347-356. [PMID: 36937786 PMCID: PMC10015984 DOI: 10.1021/acs.organomet.2c00503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Indexed: 03/02/2023]
Abstract
The homogeneous catalysis of epoxide hydrogenolysis to give alcohols has recently received significant attention. Catalyst systems have been developed for the selective formation of either the Markovnikov (branched) or anti-Markovnikov (linear) alcohol product. Thus far, the reported catalysts exhibiting Markovnikov selectivity all feature the potential for Noyori/Shvo-type bifunctional catalysis, with either a RuH/NH or FeH/OH core structure. The proposed mechanisms of epoxide ring-opening have involved cooperative C-O bond hydrogenolysis involving the metal hydride and the acidic pendant group on the ligand, in analogy to the well-documented mechanism of polar double-bond hydrogenation exhibited by catalysts of this type. In this work, we present a combined computational/experimental study of the mechanism of epoxide hydrogenolysis catalyzed by Noyori-type PNP and PNN complexes of ruthenium. We find that, at least for these ruthenium systems, the previously proposed bifunctional pathway for epoxide ring-opening is energetically inaccessible; instead, the ring-opening proceeds through opposite-side nucleophilic attack of the ruthenium hydride on the epoxide carbon, without the involvement of the ligand N-H group. For both catalyst systems, the rate law and overall barrier predicted by density functional theory (DFT) are consistent with the results from kinetic studies.
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Affiliation(s)
- Marianna
C. Head
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Benjamin T. Joseph
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Jason M. Keith
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Anthony R. Chianese
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
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5
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Arora V, Yasmin E, Tanwar N, Hathwar VR, Wagh T, Dhole S, Kumar A. Pincer–Ruthenium-Catalyzed Reforming of Methanol─Selective High-Yield Production of Formic Acid and Hydrogen. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Eileen Yasmin
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Niharika Tanwar
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | - Tushar Wagh
- ChemDist Group of Companies, Plot No 144 A, Sector 7, PCNTDA Bhosari Pune, Pune, Maharashtra 411026, India
| | - Sunil Dhole
- ChemDist Group of Companies, Plot No 144 A, Sector 7, PCNTDA Bhosari Pune, Pune, Maharashtra 411026, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Jyoti and Bhupat Mehta School of Health Sciences and Technology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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6
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Theoretical Prediction of the Catalytic Efficiency of Non-metalated Pincer-like Phosphorus Compounds for the Hydrogenation of Carbon-monoxide with Ammonia-Borane. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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7
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Onishi N, Himeda Y. Homogeneous catalysts for CO2 hydrogenation to methanol and methanol dehydrogenation to hydrogen generation. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Zhang S, Liu Y, Zhang M, Ma Y, Hu J, Qu Y. Sustainable production of hydrogen with high purity from methanol and water at low temperatures. Nat Commun 2022; 13:5527. [PMID: 36130943 PMCID: PMC9492729 DOI: 10.1038/s41467-022-33186-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/06/2022] [Indexed: 11/08/2022] Open
Abstract
Carbon neutrality initiative has stimulated the development of the sustainable methodologies for hydrogen generation and safe storage. Aqueous-phase reforming methanol and H2O (APRM) has attracted the particular interests for their high gravimetric density and easy availability. Thus, to efficiently release hydrogen and significantly suppress CO generation at low temperatures without any additives is the sustainable pursuit of APRM. Herein, we demonstrate that the dual-active sites of Pt single-atoms and frustrated Lewis pairs (FLPs) on porous nanorods of CeO2 enable the efficient additive-free H2 generation with a low CO (0.027%) through APRM at 120 °C. Mechanism investigations illustrate that the Pt single-atoms and Lewis acidic sites cooperatively promote the activation of methanol. With the help of a spontaneous water dissociation on FLPs, Pt single-atoms exhibit a significantly improved reforming of *CO to promote H2 production and suppress CO generation. This finding provides a promising path towards the flexible hydrogen utilizations.
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Affiliation(s)
- Sai Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, 518057, Shenzhen, China
| | - Yuxuan Liu
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, Xian Jiaotong University, 710049, Xian, China
| | - Mingkai Zhang
- Center for Applied Chemical Research, Frontier Institute of Science and Technology, Xian Jiaotong University, 710049, Xian, China
| | - Yuanyuan Ma
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, China
| | - Jun Hu
- School of Chemical Engineering, Northwest University, 710069, Xian, China.
| | - Yongquan Qu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, China.
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9
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Garg N, Somasundharam HP, Dahiya P, Sundararaju B. Methanol as a hydrogen source: room-temperature highly-selective transfer hydrogenation of α,β-unsaturated ketones. Chem Commun (Camb) 2022; 58:9930-9933. [PMID: 35979880 DOI: 10.1039/d2cc03597a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The described system offers an ideal, user-friendly protocol for the chemoselective homogeneous hydrogenation of α,β-unsaturated ketones at room temperature using methanol as a liquid organic hydrogen carrier. Excellent yields were achieved with an in situ-prepared phosphine-free Cp*Ir(III)/bipyridonate complex. Chemoselective reduction with other reducible functionalities and late-stage functionalization were also explored.
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Affiliation(s)
- Nidhi Garg
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India.
| | | | - Pardeep Dahiya
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India.
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India.
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10
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Kirlin FL, Borden OJ, Head MC, Kelly SE, Chianese AR. Epoxide Hydrogenolysis Catalyzed by Ruthenium PNN and PNP Pincer Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fallyn L. Kirlin
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Olivia J. Borden
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Marianna C. Head
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Sophie E. Kelly
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Anthony R. Chianese
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
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11
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Kar S, Milstein D. Sustainable catalysis with fluxional acridine-based PNP pincer complexes. Chem Commun (Camb) 2022; 58:3731-3746. [PMID: 35234797 PMCID: PMC8932388 DOI: 10.1039/d2cc00247g] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/23/2022] [Indexed: 12/14/2022]
Abstract
Because of the widespread use of fossil fuels and the resulting global warming, development of sustainable catalytic transformations is now more important than ever to obtain our desired fuels and building materials with the least carbon footprint and waste production. Many sustainable (de)hydrogenation reactions, including CO2 reduction, H2 carrier systems, and others, have been reported using molecular pincer complexes. A specific subset of pincer complexes containing a central acridine donor with flanking CH2PR2 ligands, known as acridine-based PNP pincer complexes, exhibit special reactivities that are not imitable by other PNP pincer complexes such as pyridine-based or (R2PCH2CH2)2NH type ligands. The goal of this article is to highlight the unique reactivities of acridine-based complexes and then investigate how these reactivities allow these complexes to catalyse many sustainable reactions that traditional pincer complexes cannot catalyse. To that end, we will initially go over the synthesis and structural features of acridine complexes, such as the labile coordination of the central N donor and the observed fac-mer fluxionality. Following that, distinct reactivity patterns of acridine-based complexes including their reactivity with acids and water will be discussed. Finally, we will discuss the reaction systems that have been developed with acridine complexes thus far, including the notable selective transformations of primary alcohols to primary amines using ammonia, N-heteroaromatic synthesis from alcohols and ammonia, oxidation reactions with water with H2 liberation, development of H2 carrier systems, and others, and conclude the article with future possible directions. We hope that the systemic study presented here will aid researchers in developing further sustainable reactions based on the unique acridine-based pincer complexes.
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Affiliation(s)
- Sayan Kar
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel.
| | - David Milstein
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel.
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12
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Formic Acid Dehydrogenation Using Noble-Metal Nanoheterogeneous Catalysts: Towards Sustainable Hydrogen-Based Energy. Catalysts 2022. [DOI: 10.3390/catal12030324] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The need for sustainable energy sources is now more urgent than ever, and hydrogen is significant in the future of energy. However, several obstacles remain in the way of widespread hydrogen use, most of which are related to transport and storage. Dilute formic acid (FA) is recognized asa a safe fuel for low-temperature fuel cells. This review examines FA as a potential hydrogen storage molecule that can be dehydrogenated to yield highly pure hydrogen (H2) and carbon dioxide (CO2) with very little carbon monoxide (CO) gas produced via nanoheterogeneous catalysts. It also present the use of Au and Pd as nanoheterogeneous catalysts for formic acid liquid phase decomposition, focusing on the influence of noble metals in monometallic, bimetallic, and trimetallic compositions on the catalytic dehydrogenation of FA under mild temperatures (20–50 °C). The review shows that FA production from CO2 without a base by direct catalytic carbon dioxide hydrogenation is far more sustainable than existing techniques. Finally, using FA as an energy carrier to selectively release hydrogen for fuel cell power generation appears to be a potential technique.
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13
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Wang Q, Lan J, Liang R, Xia Y, Qin L, Chung LW, Zheng Z. New Tricks for an Old Dog: Grubbs Catalysts Enable Efficient Hydrogen Production from Aqueous-Phase Methanol Reforming. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05369] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qian Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Jialing Lan
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Rong Liang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yihao Xia
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lei Qin
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lung Wa Chung
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiping Zheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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14
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Kumar A, Daw P, Milstein D. Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics. Chem Rev 2022; 122:385-441. [PMID: 34727501 PMCID: PMC8759071 DOI: 10.1021/acs.chemrev.1c00412] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 02/08/2023]
Abstract
As the world pledges to significantly cut carbon emissions, the demand for sustainable and clean energy has now become more important than ever. This includes both production and storage of energy carriers, a majority of which involve catalytic reactions. This article reviews recent developments of homogeneous catalysts in emerging applications of sustainable energy. The most important focus has been on hydrogen storage as several efficient homogeneous catalysts have been reported recently for (de)hydrogenative transformations promising to the hydrogen economy. Another direction that has been extensively covered in this review is that of the methanol economy. Homogeneous catalysts investigated for the production of methanol from CO2, CO, and HCOOH have been discussed in detail. Moreover, catalytic processes for the production of conventional fuels (higher alkanes such as diesel, wax) from biomass or lower alkanes have also been discussed. A section has also been dedicated to the production of ethylene glycol from CO and H2 using homogeneous catalysts. Well-defined transition metal complexes, in particular, pincer complexes, have been discussed in more detail due to their high activity and well-studied mechanisms.
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Affiliation(s)
- Amit Kumar
- School
of Chemistry, University of St. Andrews, North Haugh, Fife, U.K., KY16 9ST
| | - Prosenjit Daw
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Berhampur, Govt. ITI (transit Campus), Berhampur 760010, India
| | - David Milstein
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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15
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Luo J, Kar S, Rauch M, Montag M, Ben-David Y, Milstein D. Efficient Base-Free Aqueous Reforming of Methanol Homogeneously Catalyzed by Ruthenium Exhibiting a Remarkable Acceleration by Added Catalytic Thiol. J Am Chem Soc 2021; 143:17284-17291. [PMID: 34617436 PMCID: PMC8532156 DOI: 10.1021/jacs.1c09007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/11/2022]
Abstract
Production of H2 by methanol reforming is of particular interest due the low cost, ready availability, and high hydrogen content of methanol. However, most current methods either require very high temperatures and pressures or strongly rely on the utilization of large amounts of base. Here we report an efficient, base-free aqueous-phase reforming of methanol homogeneously catalyzed by an acridine-based ruthenium pincer complex, the activity of which was unexpectedly improved by a catalytic amount of a thiol additive. The reactivity of this system is enhanced by nearly 2 orders of magnitude upon addition of the thiol, and it can maintain activity for over 3 weeks, achieving a total H2 turnover number of over 130 000. On the basis of both experimental and computational studies, a mechanism is proposed which involves outer-sphere dehydrogenations promoted by a unique ruthenium complex with thiolate as an assisting ligand. The current system overcomes the need for added base in homogeneous methanol reforming and also highlights the unprecedented acceleration of catalytic activity of metal complexes achieved by the addition of a catalytic amount of thiol.
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Affiliation(s)
- Jie Luo
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
| | - Sayan Kar
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
| | - Michael Rauch
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
| | - Michael Montag
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
| | - Yehoshoa Ben-David
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
| | - David Milstein
- Department of Molecular Chemistry
and Materials Science, Weizmann Institute
of Science, Rehovot, 76100, Israel
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16
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Garg N, Sarkar A, Sundararaju B. Recent developments on methanol as liquid organic hydrogen carrier in transfer hydrogenation reactions. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213728] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Chatterjee B, Chang W, Werlé C. Molecularly Controlled Catalysis – Targeting Synergies Between Local and Non‐local Environments. ChemCatChem 2020. [DOI: 10.1002/cctc.202001431] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Basujit Chatterjee
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Wei‐Chieh Chang
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
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18
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White NA, Clagg K, Sirois LE, Lim NK, Nack WA, O’Shea PD, Zhang H, Gosselin F. Practical Synthesis of a Stable Precursor for Positron Emission Tomography Imaging Agent 18F-GTP1. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nicholas A. White
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Kyle Clagg
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Lauren E. Sirois
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Ngiap-Kie Lim
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - William A. Nack
- Exemplify BioPharma, 3000 Eastpark Boulevard, Suite 500-A, Cranbury, New Jersey 08512, United States
| | - Paul D. O’Shea
- Exemplify BioPharma, 3000 Eastpark Boulevard, Suite 500-A, Cranbury, New Jersey 08512, United States
| | - Haiming Zhang
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Francis Gosselin
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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19
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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20
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Chen Z, Chen G, Aboo AH, Iggo J, Xiao J. Methanol as Hydrogen Source: Transfer Hydrogenation of Aldehydes near Room Temperature. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000241] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhenyu Chen
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Guanhong Chen
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Ahmed H. Aboo
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Jonathan Iggo
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Jianliang Xiao
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
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21
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Bai C, Wang H, Ning F, Fu J, Wei J, Lu G, Shen Y, Zhou X. Second Sphere Ligand Promoted Organoiridium Catalysts for Methanol Dehydrogenation under Mild Conditions. ChemCatChem 2020. [DOI: 10.1002/cctc.202000400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chuang Bai
- School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei 230026 P.R. China
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Huihui Wang
- School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei 230026 P.R. China
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Fandi Ning
- School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei 230026 P.R. China
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Junhao Fu
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Jun Wei
- School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei 230026 P.R. China
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Guanbin Lu
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
| | - Yangbin Shen
- Institute of Materials Science and Devices Suzhou University of Science and Technology Suzhou 215009 P.R. China
| | - Xiaochun Zhou
- School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei 230026 P.R. China
- Division of Advanced Nanomaterials Suzhou Institute of Nano-tech and Nano-bionics Chinese Academy of Sciences (CAS) Suzhou 215123 P.R. China
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22
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Tindall DJ, Menche M, Schelwies M, Paciello RA, Schäfer A, Comba P, Rominger F, Hashmi ASK, Schaub T. Ru0 or RuII: A Study on Stabilizing the “Activated” Form of Ru-PNP Complexes with Additional Phosphine Ligands in Alcohol Dehydrogenation and Ester Hydrogenation. Inorg Chem 2020; 59:5099-5115. [DOI: 10.1021/acs.inorgchem.0c00337] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Daniel J. Tindall
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
| | - Maximilian Menche
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- BASF SE, Quantum Chemistry & Molecular Simulation, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Mathias Schelwies
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Rocco A. Paciello
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Ansgar Schäfer
- BASF SE, Quantum Chemistry & Molecular Simulation, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Peter Comba
- Institute of Inorganic Chemistry & Interdisciplinary Center for Scientific Computing, Heidelberg University, Im Neuenheimer Feld 275, D-69120 Heidelberg, Germany
| | - Frank Rominger
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
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23
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Piehl P, Amuso R, Alberico E, Junge H, Gabriele B, Neumann H, Beller M. Cyclometalated Ruthenium Pincer Complexes as Catalysts for the α-Alkylation of Ketones with Alcohols. Chemistry 2020; 26:6050-6055. [PMID: 31985105 PMCID: PMC7317879 DOI: 10.1002/chem.202000396] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Indexed: 11/29/2022]
Abstract
Ruthenium PNP pincer complexes bearing supplementary cyclometalated C,N‐bound ligands have been prepared and fully characterized for the first time. By replacing CO and H− as ancillary ligands in such complexes, additional electronic and steric modifications of this topical class of catalysts are possible. The advantages of the new catalysts are demonstrated in the general α‐alkylation of ketones with alcohols following a hydrogen autotransfer protocol. Herein, various aliphatic and benzylic alcohols were applied as green alkylating agents for ketones bearing aromatic, heteroaromatic or aliphatic substituents as well as cyclic ones. Mechanistic investigations revealed that during catalysis, Ru carboxylate complexes are predominantly formed whereas neither the PNP nor the CN ligand are released from the catalyst in significant amounts.
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Affiliation(s)
- Patrick Piehl
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Roberta Amuso
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.,Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036, Arcavacata di, Rende (CS, Italy
| | - Elisabetta Alberico
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.,Istituto di Chimica Biomolecolare, CNR, tr. La Crucca 3, 07100, Sassari, Italy
| | - Henrik Junge
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036, Arcavacata di, Rende (CS, Italy
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
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24
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Shimbayashi T, Fujita KI. Metal-catalyzed hydrogenation and dehydrogenation reactions for efficient hydrogen storage. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130946] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Immobilization of a selective Ru-pincer complex for low temperature methanol reforming–Material and process improvements. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Budweg S, Junge K, Beller M. Catalytic oxidations by dehydrogenation of alkanes, alcohols and amines with defined (non)-noble metal pincer complexes. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00699h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review highlights the latest developments in the field of transition metal-catalysed oxidations, in particular C–C–, C–O– and C–N-bond dehydrogenations.
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Affiliation(s)
- Svenja Budweg
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
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27
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Agapova A, Junge H, Beller M. Developing Bicatalytic Cascade Reactions: Ruthenium‐catalyzed Hydrogen Generation From Methanol. Chemistry 2019; 25:9345-9349. [DOI: 10.1002/chem.201900966] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Anastasiya Agapova
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Henrik Junge
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an derUniversität Rostock Albert-Einstein-Strasse 29a 18059 Rostock Germany
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28
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Fujita KI. Development and Application of New Iridium Catalysts for Efficient Dehydrogenative Reactions of Organic Molecules. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180301] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ken-ichi Fujita
- Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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29
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Yu H, Wu Z, Wei Z, Zhai Y, Ru S, Zhao Q, Wang J, Han S, Wei Y. N-formylation of amines using methanol as a potential formyl carrier by a reusable chromium catalyst. Commun Chem 2019. [DOI: 10.1038/s42004-019-0109-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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30
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Fujita KI. Development of Efficient Methods for Organic Synthesis, Hydrogen Storage, and Hydrogen Production Based on Catalytic Dehydrogenation of Organic Molecules. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ken-ichi Fujita
- Graduate School of Human and Environmental Studies, Kyoto University
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31
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Ni T, Zhang H, Zhang S. Room-temperature hydrogen generation from water and nanoscale Fe catalyzed by Pd. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01061g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Production of pure H2 through a redox reaction between water and Fe nanoparticles at room temperature.
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Affiliation(s)
- Ting Ni
- Shaanxi Key Laboratory of Energy Chemical Process Intensification
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Huan Zhang
- Shaanxi Key Laboratory of Energy Chemical Process Intensification
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- China
| | - Sai Zhang
- Shaanxi Key Laboratory of Energy Chemical Process Intensification
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- China
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32
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Sinha V, Trincado M, Grützmacher H, de Bruin B. DFT Provides Insight into the Additive-Free Conversion of Aqueous Methanol to Dihydrogen Catalyzed by [Ru(trop 2dad)]: Importance of the (Electronic) Flexibility of the Diazadiene Moiety. J Am Chem Soc 2018; 140:13103-13114. [PMID: 30215248 PMCID: PMC6209174 DOI: 10.1021/jacs.8b09011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
![]()
The
mechanism for complete dehydrogenation of aqueous methanol to CO2 and three equivalents of H2 catalyzed by [Ru(trop2dad)] was investigated with DFT (trop2dad = 1,4-bis(5H-dibenzo[a,d]cyclohepten-5-yl)-1,4-diazabuta-1,3-diene).
To date, this is the only catalyst that promotes the acceptorless
dehydrogenation of aqueous methanol in homogeneous phase under mild
conditions without the addition of an additive (base, acid, or a secondary
catalyst). A detailed understanding of the mechanism of this transformation
may therefore be of significant importance for the conversion of liquid
organic fuels. Previous computational studies using simplified models
of the catalyst suggested entirely ligand-centered reaction pathways
with rather high-energy barriers for complete dehydrogenation of aqueous
methanol. These are, however, not consistent with the experimental
data. In the present paper, we reveal a different reaction mechanism
for aqueous methanol dehydrogenation that involves metal–ligand
cooperativity involving the diazadiene (dad) ligand and has substantially
lower barriers, in good agreement with the experimental data. The
dad moiety of the ligand actively participates in the alcohol activation
mechanism. In the first step of the reaction, the dad ligand rearranges
from a σ- to a π-bound coordination mode. This adjusts
the electronic structure of both the metal and the ligand, leading
to an enhanced Brønsted basicity of the nitrogen centers and
higher Lewis acidity of the ruthenium center. As a result, concerted
proton-hydride transfer to/from metal-hydride and N-protonated dad-ligand
moieties becomes possible, leading to low-barrier metal–ligand
cooperative elementary steps for alcohol activation and H2 elimination.
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Affiliation(s)
- Vivek Sinha
- Homogeneous, Supramolecular and Bio-inspired Catalysis Group (HomKat), van 't Hoff Institute for Molecular Sciences (HIMS) , Universiteit van Amsterdam , Amsterdam 1012 WX , The Netherlands
| | - Monica Trincado
- Laboratorium für Anorganische Chemie , ETH , Zürich 8092 , Switzerland
| | | | - Bas de Bruin
- Homogeneous, Supramolecular and Bio-inspired Catalysis Group (HomKat), van 't Hoff Institute for Molecular Sciences (HIMS) , Universiteit van Amsterdam , Amsterdam 1012 WX , The Netherlands
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33
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Trincado M, Vogt M. CO2-based hydrogen storage – hydrogen liberation from methanol/water mixtures and from anhydrous methanol. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
New strategies for the reforming of methanol under mild conditions on the basis of heterogeneous and molecular catalysts have raised the hopes and expectations on this fuel. This contribution will focus on the progress achieved in the production of hydrogen from aqueous and anhydrous methanol with molecular and heterogeneous catalysts. The report entails thermal approaches, as well as light-triggered dehydrogenation reactions. A comparison of the efficiency and mechanistic aspects will be made and principles of catalytic pathways operating in biological systems will be also addressed.
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34
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Debnath T, Ash T, Ghosh A, Sarkar S, Das AK. Exploration of unprecedented catalytic dehydrogenation mechanism of methylamine-water mixture in presence of Ru-pincer complex: A systematic DFT study. J Catal 2018. [DOI: 10.1016/j.jcat.2018.04.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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35
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Ogata O, Nara H, Fujiwhara M, Matsumura K, Kayaki Y. N-Monomethylation of Aromatic Amines with Methanol via PN HP-Pincer Ru Catalysts. Org Lett 2018; 20:3866-3870. [PMID: 29939027 DOI: 10.1021/acs.orglett.8b01449] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The use of methanol for the selective methylation of aromatic amines with RuHCl(CO)(PNHP) (PNHP = bis(2-diphenylphosphinoethyl)amine) is reported. Various aromatic amines were transformed into their corresponding monomethylated secondary amines in high yields at 150 °C with a very low catalyst loading (0.02-0.1 mol %) in the presence of KO tBu (20-60 mol %). The catalyst precursor, RuHCl(CO)(PNHP), was converted to [RuH(CO)2(PNHP)]+ under the catalytic conditions and also serves as a highly effective catalyst. The robustness of this catalyst contributes to its outstanding catalytic activity, even under reaction conditions, in which CO is liberated from methanol.
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Affiliation(s)
- Osamu Ogata
- Corporate Research and Development Division , Takasago International Corporation , 1-4-11 Nishi-Yawata , Hiratsuka , Kanagawa 254-0073 , Japan
| | - Hideki Nara
- Corporate Research and Development Division , Takasago International Corporation , 1-4-11 Nishi-Yawata , Hiratsuka , Kanagawa 254-0073 , Japan
| | - Mitsuhiko Fujiwhara
- Corporate Research and Development Division , Takasago International Corporation , 1-4-11 Nishi-Yawata , Hiratsuka , Kanagawa 254-0073 , Japan
| | - Kazuhiko Matsumura
- Corporate Research and Development Division , Takasago International Corporation , 1-4-11 Nishi-Yawata , Hiratsuka , Kanagawa 254-0073 , Japan
| | - Yoshihito Kayaki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama , Meguro-ku , Tokyo 152-8552 , Japan
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36
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Anaby A, Schelwies M, Schwaben J, Rominger F, Hashmi ASK, Schaub T. Study of Precatalyst Degradation Leading to the Discovery of a New Ru0 Precatalyst for Hydrogenation and Dehydrogenation. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00353] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aviel Anaby
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
| | - Mathias Schelwies
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Jonas Schwaben
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa) Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- BASF SE, Synthesis and Homogeneous Catalysis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
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37
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Valdés H, García-Eleno MA, Canseco-Gonzalez D, Morales-Morales D. Recent Advances in Catalysis with Transition-Metal Pincer Compounds. ChemCatChem 2018. [DOI: 10.1002/cctc.201702019] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hugo Valdés
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
| | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM; Universidad Autónoma del Estado de México; Carretera Toluca-Atlacomulco Km 14.5 Toluca, Estado de México 50200 México
| | - Daniel Canseco-Gonzalez
- CONACYT-Laboratorio Nacional de Investigación y Servicio, Agroalimentario y Forestal; Universidad Autónoma Chapingo; Texcoco de Mora México
| | - David Morales-Morales
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
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38
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Advances in Homogeneous Catalysis for Low Temperature Methanol Reforming in the Context of the Methanol Economy. Top Catal 2018. [DOI: 10.1007/s11244-018-0963-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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Iglesias M, Oro LA. A leap forward in iridium-NHC catalysis: new horizons and mechanistic insights. Chem Soc Rev 2018; 47:2772-2808. [PMID: 29557434 DOI: 10.1039/c7cs00743d] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarises the most recent advances in Ir-NHC catalysis while revisiting all the classical reactions in which this type of catalyst has proved to be active. The influence of the ligand system and, in particular, the impact of the NHC ligand on the activity and selectivity of the reaction have been analysed, accompanied by an examination of the great variety of catalytic cycles hitherto reported. The reaction mechanisms so far proposed are described and commented on for each individual process. Moreover, some general considerations that attempt to explain the influence of the NHC from a mechanistic viewpoint are presented at the end of the review. The first sections are dedicated to the most widely explored reactions that use Ir-NHCs, i.e., hydrogenation and transfer hydrogenation, for which a general overview that tries to compile all the Ir-NHC catalysts hitherto reported for these processes is provided. The next sections deal with hydrogen borrowing, hydrosilylation, water splitting, dehydrogenation (of alcohols, alkanes, aminoboranes and formic acid), hydrogen isotope exchange (HIE), signal amplification by reversible exchange and C-H bond functionalisation (silylation and borylation). The last section compiles a series of reactions somewhat less explored for Ir-NHC catalysts that include the hydroalkynylation of imines, hydroamination, diboration of olefins, hydrolysis and methanolysis of silanes, arylation of aldehydes with boronic acids, addition of aroyl chlorides to alkynes, visible light driven reactions, isomerisation of alkenes, asymmetric intramolecular allylic amination and reactions that employ heterometallic catalysts containing at least one Ir-NHC unit.
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Affiliation(s)
- Manuel Iglesias
- Departamento Química Inorgánica - ISQCH, Universidad de Zaragoza - CSIC, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Luis A Oro
- Departamento Química Inorgánica - ISQCH, Universidad de Zaragoza - CSIC, Pedro Cerbuna 12, 50009 Zaragoza, Spain. and King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
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40
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Shen Y, Zhan Y, Li S, Ning F, Du Y, Huang Y, He T, Zhou X. Methanol-Water Aqueous-Phase Reforming with the Assistance of Dehydrogenases at Near-Room Temperature. CHEMSUSCHEM 2018; 11:864-871. [PMID: 29327513 DOI: 10.1002/cssc.201702359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 06/07/2023]
Abstract
As an excellent hydrogen-storage medium, methanol has many advantages, such as high hydrogen content (12.6 wt %), low cost, and availability from biomass or photocatalysis. However, conventional methanol-water reforming usually proceeds at high temperatures. In this research, we successfully designed a new effective strategy to generate hydrogen from methanol at near-room temperature. The strategy involved two main processes: CH3 OH→HCOOH→H2 and NADH→HCOOH→H2 . The first process (CH3 OH→HCOOH→H2 ) was performed by an alcohol dehydrogenase (ADH), an aldehyde dehydrogenase (ALDH), and an Ir catalyst. The second procedure (NADH→HCOOH→H2 ) was performed by formate dehydrogenase (FDH) and the Ir catalyst. The Ir catalyst used was a previously reported polymer complex catalyst [Cp*IrCl2 (ppy); Cp*=pentamethylcyclopentadienyl, ppy=polypyrrole] with high catalytic activity for the decomposition of formic acid at room temperature and is compatible with enzymes, coenzymes, and poisoning chemicals. Our results revealed that the optimum hydrogen generation rate could reach up to 17.8 μmol h-1 gcat-1 under weak basic conditions at 30 °C. This will have high impact on hydrogen storage, production, and applications and should also provide new inspiration for hydrogen generation from methanol.
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Affiliation(s)
- Yangbin Shen
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Yulu Zhan
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Shuping Li
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Fandi Ning
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Ying Du
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Yunjie Huang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P.R. China
| | - Ting He
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Xiaochun Zhou
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
- Key Laboratory of Nanodevices and Applications, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
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41
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Oikawa K, Itoh S, Yano H, Kawasaki H, Obora Y. Preparation and use of DMF-stabilized iridium nanoclusters as methylation catalysts using methanol as the C1 source. Chem Commun (Camb) 2018; 53:1080-1083. [PMID: 28044173 DOI: 10.1039/c6cc09279a] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report methylations of alcohols and anilines catalyzed by DMF-stabilized Ir nanoclusters using methanol as the C1 source. The DMF-stabilized Ir nanoclusters were prepared in one step and have diameters of 1-1.5 nm. They react in a borrowing-hydrogen reaction and are efficient methylation catalysts (TON up to 310 000).
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Affiliation(s)
- Kei Oikawa
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - Satoshi Itoh
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - Hiroki Yano
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - Yasushi Obora
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan.
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42
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Schaub T. CO2-based hydrogen storage: CO2 hydrogenation to formic acid, formaldehyde and methanol. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The storage of hydrogen via hydrogenation of CO2 to small organic molecules can be attractive for mobile applications. In this article, the state of the art regarding hydrogen storage in Methanol, Formic Acid as well as Formaldehyde and derivates based on CO2 hydrogenation is summarized. The reverse reaction, the release of hydrogen from these molecules is also crucial and described in the articles together with possible concepts for the use of hydrogen storage by CO2 hydrogenation.
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Affiliation(s)
- Thomas Schaub
- Synthesis and Homogeneous Catalysis , BASF SE , Carl-Bosch-Str. 38, 67056 Ludwigshafen , Germany
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43
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Shen Y, Zhan Y, Li S, Ning F, Du Y, Huang Y, He T, Zhou X. Hydrogen generation from methanol at near-room temperature. Chem Sci 2017; 8:7498-7504. [PMID: 29163903 PMCID: PMC5676115 DOI: 10.1039/c7sc01778b] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 09/06/2017] [Indexed: 11/21/2022] Open
Abstract
As a promising hydrogen storage medium methanol has many advantages such as a high hydrogen content (12.5 wt%) and low-cost. However, conventional methanol-water reforming methods usually require a high temperature (>200 °C). In this research, we successfully designed an effective strategy to fully convert methanol to hydrogen for at least 1900 min (∼32 h) at near-room temperature. The strategy involves two main procedures, which are CH3OH → HCOOH → H2 and CH3OH → NADH → H2. HCOOH and the reduced form of nicotinamide adenine dinucleotide (NADH) are simultaneously produced through the dehydrogenation of methanol by the cooperation of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH). Subsequently, HCOOH is converted to H2 by a new iridium polymer complex catalyst and an enzyme mimic is used to convert NADH to H2 and nicotinamide adenine dinucleotide (NAD+). NAD+ can then be reconverted to NADH by repeating the dehydrogenation of methanol. This strategy and the catalysts invented in this research can also be applied to hydrogen production from other small organic molecules (e.g. ethanol) or biomass (e.g. glucose), and thus will have a high impact on hydrogen storage and applications.
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Affiliation(s)
- Yangbin Shen
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yulu Zhan
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
| | - Shuping Li
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
| | - Fandi Ning
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
| | - Ying Du
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
| | - Yunjie Huang
- Faculty of Materials Science and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Ting He
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
| | - Xiaochun Zhou
- Division of Advanced Nanomaterials , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China .
- Key Laboratory of Nanodevices and Applications , Suzhou Institute of Nano-tech and Nano-bionics , Chinese Academy of Sciences , Suzhou 215125 , China
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44
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Sordakis K, Tang C, Vogt LK, Junge H, Dyson PJ, Beller M, Laurenczy G. Homogeneous Catalysis for Sustainable Hydrogen Storage in Formic Acid and Alcohols. Chem Rev 2017; 118:372-433. [DOI: 10.1021/acs.chemrev.7b00182] [Citation(s) in RCA: 608] [Impact Index Per Article: 86.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Katerina Sordakis
- Institute of Chemical Sciences and Engineering, École
Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, CH-1015 Lausanne, Switzerland
| | - Conghui Tang
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Lydia K. Vogt
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Henrik Junge
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Paul J. Dyson
- Institute of Chemical Sciences and Engineering, École
Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, CH-1015 Lausanne, Switzerland
| | - Matthias Beller
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, D-18059 Rostock, Germany
| | - Gábor Laurenczy
- Institute of Chemical Sciences and Engineering, École
Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, CH-1015 Lausanne, Switzerland
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45
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Kim K, Moeljadi AMP, Hirao H, Hong SH. Acceptorless and Base-free Dehydrogenation of Cyanohydrin with (η6
-Arene)halide(Bidentate Phosphine)ruthenium(II) Complex. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kicheol Kim
- Department of Chemistry; College of Natural Sciences; Seoul National University; Seoul 08826 Republic of Korea
| | - Adhitya Mangala Putra Moeljadi
- Department of Chemistry; College of Science and Engineering; City University of Hong Kong, Kowloon; Hong Kong SAR People's Republic of China
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371
| | - Hajime Hirao
- Department of Chemistry; College of Science and Engineering; City University of Hong Kong, Kowloon; Hong Kong SAR People's Republic of China
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371
| | - Soon Hyeok Hong
- Department of Chemistry; College of Natural Sciences; Seoul National University; Seoul 08826 Republic of Korea
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46
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Prichatz C, Alberico E, Baumann W, Junge H, Beller M. Iridium-PNP Pincer Complexes for Methanol Dehydrogenation at Low Base Concentration. ChemCatChem 2017. [DOI: 10.1002/cctc.201700015] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Christoph Prichatz
- Leibniz-Institut für Katalyse e. V. an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Elisabetta Alberico
- Leibniz-Institut für Katalyse e. V. an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
- Instituto di Chimica Biomolecolare; CNR; Sassari Italy
| | - Wolfgang Baumann
- Leibniz-Institut für Katalyse e. V. an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Henrik Junge
- Leibniz-Institut für Katalyse e. V. an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e. V. an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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47
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Trincado M, Sinha V, Rodriguez-Lugo RE, Pribanic B, de Bruin B, Grützmacher H. Homogeneously catalysed conversion of aqueous formaldehyde to H 2 and carbonate. Nat Commun 2017; 8:14990. [PMID: 28452367 PMCID: PMC5414358 DOI: 10.1038/ncomms14990] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 02/20/2017] [Indexed: 01/28/2023] Open
Abstract
Small organic molecules provide a promising solution for the requirement to store large amounts of hydrogen in a future hydrogen-based energy system. Herein, we report that diolefin-ruthenium complexes containing the chemically and redox non-innocent ligand trop2dad catalyse the production of H2 from formaldehyde and water in the presence of a base. The process involves the catalytic conversion to carbonate salt using aqueous solutions and is the fastest reported for acceptorless formalin dehydrogenation to date. A mechanism supported by density functional theory calculations postulates protonation of a ruthenium hydride to form a low-valent active species, the reversible uptake of dihydrogen by the ligand and active participation of both the ligand and the metal in substrate activation and dihydrogen bond formation.
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Affiliation(s)
- M Trincado
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
| | - Vivek Sinha
- Supramolecular and Homogeneous Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Rafael E Rodriguez-Lugo
- Labotatorio de Química Bioinorgánica, Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela
| | - Bruno Pribanic
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
| | - Bas de Bruin
- Supramolecular and Homogeneous Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
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48
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Bernskoetter WH, Hazari N. Reversible Hydrogenation of Carbon Dioxide to Formic Acid and Methanol: Lewis Acid Enhancement of Base Metal Catalysts. Acc Chem Res 2017; 50:1049-1058. [PMID: 28306247 DOI: 10.1021/acs.accounts.7b00039] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
New and sustainable energy vectors are required as a consequence of the environmental issues associated with the continued use of fossil fuels. H2 is a potential clean energy source, but as a result of problems associated with its storage and transport as a gas, chemical H2 storage (CHS), which involves the dehydrogenation of small molecules, is an attractive alternative. In principle, formic acid (FA, 4.4 wt % H2) and methanol (MeOH, 12.6 wt % H2) can be obtained renewably and are excellent prospective liquid CHS materials. In addition, MeOH has considerable potential both as a direct replacement for gasoline and as a fuel cell input. The current commercial syntheses of FA and MeOH, however, use nonrenewable feedstocks and will not facilitate the use of these molecules for CHS. An appealing option for the sustainable synthesis of both FA and MeOH, which could be implemented on a large scale, is the direct metal catalyzed hydrogenation of CO2. Furthermore, given that CO2 is a readily available, nontoxic and inexpensive source of carbon, it is expected that there will be economic and environmental benefits from using CO2 as a feedstock. One strategy to facilitate both the dehydrogenation of FA and MeOH and the hydrogenation of CO2 and H2 to FA and MeOH is to utilize a homogeneous transition metal catalyst. In particular, the development of catalysts based on first row transition metals, which are cheaper, and more abundant than their precious metal counterparts, is desirable. In this Account, we describe recent advances in the development of iron and cobalt systems for the hydrogenation of CO2 to FA and MeOH and the dehydrogenation of FA and MeOH and provide a brief comparison between precious metal and base metal systems. We highlight the different ligands that have been used to stabilize first row transition metal catalysts and discuss the use of additives to promote catalytic activity. In particular, the Account focuses on the crucial role that alkali metal Lewis acid cocatalysts can play in promoting increased activity and catalyst stability for first row transition metal systems. We relate these effects to the nature of the elementary steps in the catalytic cycle and describe how the Lewis acids stabilize the crucial transition states. For all four transformations, we discuss in detail the currently proposed catalytic pathways, and throughout the Account we identify mechanistic similarities among catalysts for the four processes. The limitations of current catalytic systems are detailed, and suggestions are provided on the improvements that are likely required to develop catalysts that are more stable, active, and practical.
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Affiliation(s)
- Wesley H Bernskoetter
- The
Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Nilay Hazari
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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49
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Zhan Y, Shen Y, Li S, Yue B, Zhou X. Hydrogen generation from glucose catalyzed by organoruthenium catalysts under mild conditions. Chem Commun (Camb) 2017; 53:4230-4233. [PMID: 28357439 DOI: 10.1039/c7cc00177k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Concerns about the depletion of fossil fuel reserves and environmental pollution make hydrogen an attractive alternative energy source. Here, we first describe a catalytic reaction system that produces H2 from glucose using a homogeneous catalyst [(p-cymene)Ru(NH3)]Cl2 with the maximum TOF = 719 h-1 at 98 °C and an initial pH = 0.5.
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Affiliation(s)
- Yulu Zhan
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215125, China
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50
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Sarbajna A, Dutta I, Daw P, Dinda S, Rahaman SMW, Sarkar A, Bera JK. Catalytic Conversion of Alcohols to Carboxylic Acid Salts and Hydrogen with Alkaline Water. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03259] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abir Sarbajna
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Indranil Dutta
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Prosenjit Daw
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Shrabani Dinda
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - S. M. Wahidur Rahaman
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Abheek Sarkar
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Jitendra K. Bera
- Department of Chemistry and Center for
Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
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