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Do VK, Vargas NA, Chavez AJ, Zhang L, Cherepakhin V, Lu Z, Currier RP, Dub PA, Gordon JC, Williams TJ. Pressurized Formic Acid Dehydrogenation: An Entropic Spring Replaces Hydrogen Compression Cost. Catal Sci Technol 2022; 12:7182-7189. [PMID: 37192930 PMCID: PMC10168027 DOI: 10.1039/d2cy00676f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Formic acid is unique among liquid organic hydrogen carriers (LOHCs), because its dehydrogenation is highly entropically driven. This enables the evolution of high-pressure hydrogen at mild temperatures that is difficult to achieve with other LOHCs, conceptually by releasing the "spring" of energy stored entropically in the liquid carrier. Applications calling for hydrogen-on-demand, such as vehicle filling, require pressurized H2. Hydrogen compression dominates the cost for such applications, yet there are very few reports of selective, catalytic dehydrogenation of formic acid at elevated pressure. Herein, we show that homogenous catalysts with various ligand frameworks, including Noyori-type tridentate (PNP, SNS, SNP, SNPO), bidentate chelates (pyridyl)NHC, (pyridyl)phosphine, (pyridyl)sulfonamide, and their metallic precursors, are suitable catalysts for the dehydrogenation of neat formic acid under self-pressurizing conditions. Quite surprisingly, we discovered that their structural differences can be related to performance differences in their respective structural families, with some tolerant or intolerant of pressure and others that are significantly advantaged by pressurized conditions. We further find important roles for H2 and CO in catalyst activation and speciation. In fact, for certain systems, CO behaves as a healing reagent when trapped in a pressurizing reactor system, enabling extended life from systems that would be otherwise deactivated.
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Affiliation(s)
- Van K Do
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Nicolas Alfonso Vargas
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Anthony J Chavez
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Long Zhang
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Valeriy Cherepakhin
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Zhiyao Lu
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Robert P Currier
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Pavel A Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - John C Gordon
- National Security Education Center (NSEC), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Travis J Williams
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
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Sugiarto S, Minato T, Sakiyama H, Sadakane M. Anion‐directed conformation switching and trigonal distortion in hexakis(methylamine)nickel(II) cations. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sugiarto Sugiarto
- Hiroshima University Applied Chemistry 1-4-1 Kagamiyama 7398527 Higashi-Hiroshima JAPAN
| | - Takuo Minato
- Hiroshima University: Hiroshima Daigaku Department of Applied Chemistry JAPAN
| | - Hiroshi Sakiyama
- Yamagata University: Yamagata Daigaku Department of Science, Faculty of Science JAPAN
| | - Masahiro Sadakane
- Hiroshima University: Hiroshima Daigaku Department of Applied Chemistry JAPAN
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Mo XF, Liu C, Chen ZW, Ma F, He P, Yi XY. Metal-Ligand Cooperation in Cp*Ir-Pyridylpyrrole Complexes: Rational Design and Catalytic Activity in Formic Acid Dehydrogenation and CO 2 Hydrogenation under Ambient Conditions. Inorg Chem 2021; 60:16584-16592. [PMID: 34637291 DOI: 10.1021/acs.inorgchem.1c02487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Interconversion between CO2 + H2 and FA/formate is the most promising strategy for the fixation of carbon dioxide and reversible hydrogen storage; however, FA dehydrogenation and CO2 hydrogenation are usually studied separately using different catalysts for each reaction. This report describes of the catalysis of [Cp*Ir(N∧N)(X)]n+ (Cp* = 1,2,3,4,5-pentamethylcyclopentadienyl; X = Cl, n = 0; X = H2O, n = 1) bearing a proton-responsive N∧N pyridylpyrrole ligand for both reactions. Complex 2-H2O catalyzes FA dehydrogenation at 90 °C with a TOFmax of 45 900 h-1. Its catalysis is more active in aqueous solution than in neat solution under base-free conditions. These complexes also catalyze CO2 hydrogenation in the presence of base to formate under atmospheric pressure (CO2/H2 = 0.05 MPa/0.05 MPa) at 25 °C with a TOF value of 4.5 h-1 in aqueous solution and with a TOF value of 29 h-1 in a methanol/H2O mixture solvent. The possible mechanism is proposed by intermediate characterization and KIE experiments. The extraordinary activity of these complexes are mainly attributed to the metal-ligand cooperative effect of the the pyrrole group to accept a proton in the dehydrogenation of formic acid and assist cooperative heterolytic H-H bond cleavage in CO2 hydrogenation.
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Affiliation(s)
- Xiu-Fang Mo
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
| | - Chao Liu
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
| | - Ze-Wen Chen
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
| | - Fan Ma
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
| | - Piao He
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
| | - Xiao-Yi Yi
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China
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Guo J, Yin CK, Zhong DL, Wang YL, Qi T, Liu GH, Shen LT, Zhou QS, Peng ZH, Yao H, Li XB. Formic Acid as a Potential On-Board Hydrogen Storage Method: Development of Homogeneous Noble Metal Catalysts for Dehydrogenation Reactions. CHEMSUSCHEM 2021; 14:2655-2681. [PMID: 33963668 DOI: 10.1002/cssc.202100602] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Hydrogen can be used as an energy carrier for renewable energy to overcome the deficiency of its intrinsically intermittent supply. One of the most promising application of hydrogen energy is on-board hydrogen fuel cells. However, the lack of a safe, efficient, convenient, and low-cost storage and transportation method for hydrogen limits their application. The feasibility of mainstream hydrogen storage techniques for application in vehicles is briefly discussed in this Review. Formic acid (FA), which can reversibly be converted into hydrogen and carbon dioxide through catalysis, has significant potential for practical application. Historic developments and recent examples of homogeneous noble metal catalysts for FA dehydrogenation are covered, and the catalysts are classified based on their ligand types. The Review primarily focuses on the structure-function relationship between the ligands and their reactivity and aims to provide suggestions for designing new and efficient catalysts for H2 generation from FA.
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Affiliation(s)
- Jian Guo
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Chengkai K Yin
- Hangzhou Katal Catalyst & Metal Material Stock Co., Ltd., 7 Kang Qiao Road, Gong Shu District, Hang Zhou, Zhejiang Province, 310015, P. R. China
| | - Dulin L Zhong
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Yilin L Wang
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Tiangui Qi
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Guihua H Liu
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Leiting T Shen
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Qiusheng S Zhou
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Zhihong H Peng
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
| | - Hong Yao
- Hangzhou Katal Catalyst & Metal Material Stock Co., Ltd., 7 Kang Qiao Road, Gong Shu District, Hang Zhou, Zhejiang Province, 310015, P. R. China
| | - Xiaobin B Li
- School of Metallurgy and Environment, Central South University, 932 Lushan Road, Changsha city, Hunan Province, 410083, P. R. China
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