1
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Shen X, Craven M, Xu J, Wang Y, Li Z, Wang W, Yao S, Wu Z, Jiang N, Zhou X, Sun K, Du X, Tu X. Unveiling the Mechanism of Plasma-Catalytic Low-Temperature Water-Gas Shift Reaction over Cu/γ-Al 2O 3 Catalysts. JACS AU 2024; 4:3228-3237. [PMID: 39211585 PMCID: PMC11350726 DOI: 10.1021/jacsau.4c00518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024]
Abstract
The water-gas shift (WGS) reaction is a crucial process for hydrogen production. Unfortunately, achieving high reaction rates and yields for the WGS reaction at low temperatures remains a challenge due to kinetic limitations. Here, nonthermal plasma coupled to Cu/γ-Al2O3 catalysts was employed to enable the WGS reaction at considerably lower temperatures (up to 140 °C). For comparison, thermal-catalytic WGS reactions using the same catalysts were conducted at 140-300 °C. The best performance (72.1% CO conversion and 67.4% H2 yield) was achieved using an 8 wt % Cu/γ-Al2O3 catalyst in plasma catalysis at ∼140 °C, with 8.74 MJ mol-1 energy consumption and 8.5% H2 fuel production efficiency. Notably, conventional thermal catalysis proved to be ineffective at such low temperatures. Density functional theory calculations, coupled with in situ diffuse reflectance infrared Fourier transform spectroscopy, revealed that the plasma-generated OH radicals significantly enhanced the WGS reaction by influencing both the redox and carboxyl reaction pathways.
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Affiliation(s)
- Xiaoqiang Shen
- Key
Laboratory of Low-Grade Energy Utilization Technologies and Systems,
Ministry of Education, Chongqing University, Chongqing 400044, China
- School
of Energy and Power Engineering, Chongqing
University, Chongqing 400044, China
| | - Michael Craven
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Jiacheng Xu
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
| | - Yaolin Wang
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Zhi Li
- Key
Laboratory of Low-Grade Energy Utilization Technologies and Systems,
Ministry of Education, Chongqing University, Chongqing 400044, China
- School
of Energy and Power Engineering, Chongqing
University, Chongqing 400044, China
| | - Weitao Wang
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Shuiliang Yao
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
| | - Zuliang Wu
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
| | - Nan Jiang
- School
of Electrical Engineering, Dalian University
of Technology, Dalian 116024, China
| | - Xuanbo Zhou
- Department
of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, U.K.
| | - Kuan Sun
- Key
Laboratory of Low-Grade Energy Utilization Technologies and Systems,
Ministry of Education, Chongqing University, Chongqing 400044, China
- School
of Energy and Power Engineering, Chongqing
University, Chongqing 400044, China
| | - Xuesen Du
- Key
Laboratory of Low-Grade Energy Utilization Technologies and Systems,
Ministry of Education, Chongqing University, Chongqing 400044, China
- School
of Energy and Power Engineering, Chongqing
University, Chongqing 400044, China
| | - Xin Tu
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
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2
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Malik W, Victoria Tafoya JP, Doszczeczko S, Jorge Sobrido AB, Skoulou VK, Boa AN, Zhang Q, Ramirez Reina T, Volpe R. Synthesis of a Graphene-Encapsulated Fe 3C/Fe Catalyst Supported on Sporopollenin Exine Capsules and Its Use for the Reverse Water-Gas Shift Reaction. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:15795-15807. [PMID: 37969887 PMCID: PMC10630965 DOI: 10.1021/acssuschemeng.3c00495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 09/09/2023] [Accepted: 09/28/2023] [Indexed: 11/17/2023]
Abstract
Bioderived materials have emerged as sustainable catalyst supports for several heterogeneous reactions owing to their naturally occurring hierarchal pore size distribution, high surface area, and thermal and chemical stability. We utilize sporopollenin exine capsules (SpECs), a carbon-rich byproduct of pollen grains, composed primarily of polymerized and cross-linked lipids, to synthesize carbon-encapsulated iron nanoparticles via evaporative precipitation and pyrolytic treatments. The composition and morphology of the macroparticles were influenced by the precursor iron acetate concentration. Most significantly, the formation of crystalline phases (Fe3C, α-Fe, and graphite) detected via X-ray diffraction spectroscopy showed a critical dependence on iron loading. Significantly, the characteristic morphology and structure of the SpECs were largely preserved after high-temperature pyrolysis. Analysis of Brunauer-Emmett-Teller surface area, the D and G bands from Raman spectroscopy, and the relative ratio of the C=C to C-C bonding from high-resolution X-ray photoelectron spectroscopy suggests that porosity, surface area, and degree of graphitization were easily tuned by varying the Fe loading. A mechanism for the formation of crystalline phases and meso-porosity during the pyrolysis process is also proposed. SpEC-Fe10% proved to be highly active and selective for the reverse water-gas shift reaction at high temperatures (>600 °C).
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Affiliation(s)
- Waqas Malik
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Jorge Pavel Victoria Tafoya
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Szymon Doszczeczko
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Ana Belen Jorge Sobrido
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | | | - Andrew N. Boa
- Department
of Chemistry, University of Hull, Hull HU6 7RX, U.K.
| | - Qi Zhang
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford, Surrey GU2 7XH, U.K.
| | - Tomas Ramirez Reina
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford, Surrey GU2 7XH, U.K.
| | - Roberto Volpe
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
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3
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Negi SS, Kim HM, Cheon BS, Jeong CH, Roh HS, Jeong DW. Restructuring Co-CoO x Interface with Titration Rate in Co/Nb-CeO 2 Catalysts for Higher Water-Gas Shift Performance. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37902875 DOI: 10.1021/acsami.3c09312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
H2 production via water-gas shift reaction (WGS) is an important process and applied widely. Cobalt-modified CeO2 are promising catalysts for WGS reaction. Herein, a series of Co/Nb-CeO2 catalysts were prepared by varying the rate of precipitant addition during the coprecipitation method and examined for hydrogen generation through WGS reaction. The rates of precipitant addition were 1, 5, 15, and 25 mL/min. We obtained ceria supported cobalt catalysts with different sizes and morphology such as 3, 8 nm nanoclusters, 30 nm cubic nanoparticles, and 50 nm hexagonal nanoparticles. The well dispersed small cobalt particles in Co/Nb-CeO2 that was prepared at 5 mL/min titration rate exhibit strong interaction between cobalt oxide and CeO2 that retards the reduction of CoOx producing Co-CoOx pairs. In contrast, 1-Co/Nb-CeO2 and 25-Co/Nb-CeO2 result in bigger and aggregated Co particles, resulting in fewer interfaces with CeO2. The Co0, Coδ+, Ce3+, and Ov species are responsible for improved reducibility in Co/Nb-CeO2 catalysts and were quantitively measured using XPS, XAS, and Raman spectroscopy. The Co-CoOx interface assists dissociation of the H2O molecule; CO oxidation requires low activation energy and realizes a high turnover frequency of 9.8 s-1. The 5-Co/Nb-CeO2 catalyst achieved thermodynamic equilibrium equivalent CO conversion with efficient H2 production during WGS reaction at a gas hourly space velocity of 315,282 h-1. Successively, the 5-Co/Nb-CeO2 catalyst exhibited stable performance for straight 168 h attributed to stable CO-Coδ+ intermediate formation, achieving efficient inhibition of typical CO chemistry over the Co metal, suitable for hydrogen generation from waste derived synthesis gas.
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Affiliation(s)
- Sanjay Singh Negi
- Industrial Technology Research Center, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Hak-Min Kim
- Industrial Technology Research Center, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Beom-Su Cheon
- Department of Environmental Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Chang-Hoon Jeong
- Department of Smart Environmental Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
- Hydrogen Industry Planning Team, Changwon Industry Promotion Agency, 46 Changwon-daero, Changwon, Gyeongnam 51395, Republic of Korea
| | - Hyun-Seog Roh
- Department of Environmental and Energy Engineering, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon 26493, Republic of Korea
| | - Dae-Woon Jeong
- Department of Environment & Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
- School of Smart & Green Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
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4
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Yalcin O, Sourav S, Wachs IE. Design of Cr-Free Promoted Copper-Iron Oxide-Based High-Temperature Water-Gas Shift Catalysts. ACS Catal 2023; 13:12681-12691. [PMID: 37822859 PMCID: PMC10563126 DOI: 10.1021/acscatal.3c02474] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/19/2023] [Indexed: 10/13/2023]
Abstract
The effect of Ce addition to the Cr-free Al-promoted Cu-Fe oxide-based catalysts is investigated. Catalyst characterization (X-ray diffraction (XRD), in situ Raman spectroscopy, high-sensitivity low-energy ion scattering (HS-LEIS), Brunauer-Emmett-Teller (BET) analysis), CO-temperature-programmed reduction chemical probing, and steady-state WGS activity reveal that (i) in the absence of Al, Ce addition via coprecipitation has a detrimental effect on the catalytic activity related to the poor thermostability and formation of less active Ce-Cu-O NPs, (ii) the addition of Ce via coprecipitation also does not improve the performance of the CuAlFe catalyst because of the formation of a thick CeOx overlayer on the active Cu-FeOx interface, and (iii) impregnation of Ce onto the CuAlFe catalyst exhibits significant improvement in catalytic performance due to the formation of a highly active CeOx-FeOx-Cu interfacial area. In summary, Al does not surface-segregate and serves as a structural promoter, while Ce and Cu surface-segregate and act as functional promoters in Ce/CuAlFe mixed oxide catalysts.
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Affiliation(s)
- Ozgen Yalcin
- College
of Engineering and Technology, American
University of the Middle East, Egaila 54200, Kuwait
| | - Sagar Sourav
- Operando
Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical
and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Israel E. Wachs
- Operando
Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical
and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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5
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Yamamoto M, Takamura Y, Kokubo Y, Urushihara M, Horiuchi N, Dai W, Hayasaka Y, Kita E, Takao K. Solid-State Schikorr Reaction from Ferrous Chloride to Magnetite with Hydrogen Evolution as the Kinetic Bottleneck. Inorg Chem 2023; 62:14580-14589. [PMID: 37638697 DOI: 10.1021/acs.inorgchem.3c01676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The selective formation of meta-stable Fe3O4 from ferrous sources by suppressing its oxidative conversion to the most stable hematite (α-Fe2O3) is challenging under oxidative conditions for solid-state synthesis. In this work, we investigated the conversion of iron(II) chloride (FeCl2) to magnetite (Fe3O4) under inert atmosphere in the presence of steam, and the obtained oxides were analyzed by atomic-resolution TEM, 57Fe Mössbauer spectroscopy, and the Verwey transition temperature (Tv). The reaction proceeded in two steps, with H2O as the oxide source in the initial step and as an oxidant in the second step. The initial hydrolysis occurred at temperatures higher than 120 °C to release gaseous HCl, via substituting lattice chloride Cl- with oxide O2-, to give iron oxide intermediates. In the first step, the construction of the intermediate oxides was not topotactic. The second step as a kinetic bottleneck occurred at temperatures higher than 350 °C to generate gaseous H2 through the oxidation of FeII by H+. A substantially large kinetic isotope effect (KIE) was observed for the second step at 500 °C, and this indicates the rate-determining step is the hydrogen evolution. Quantitative analysis of evolved H2 revealed that full conversion of ferrous chloride to magnetite at 500 °C was followed by additional oxidation of the outer sphere of magnetite to give a Fe2O3 phase, as supported by X-ray photoelectron spectroscopy (XPS), and the outer phase confined the conductive magnetite phase within the insulating layers, enabling kinetic control of magnetite synthesis. As such, the reaction stopped at meta-stable magnetite with an excellent saturation magnetization (σs) of 86 emu g-1 and Tv > 120 K without affording the thermodynamically stable α-Fe2O3 as the major final product. The study also discusses the influence of parameters such as reaction temperature, initial grain size of FeCl2, the extent of hydration, and partial pressure of H2O.
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Affiliation(s)
- Masanori Yamamoto
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
| | - Yota Takamura
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
| | - Yoshiaki Kokubo
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
| | - Makoto Urushihara
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki 311-0102, Japan
| | - Nobutake Horiuchi
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki 311-0102, Japan
| | - Wenbin Dai
- Innovation Center, Mitsubishi Materials Corporation, 1002-14 Mukohyama, Naka, Ibaraki 311-0102, Japan
| | - Yuichiro Hayasaka
- The Electron Microscopy Center, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan
| | - Eiji Kita
- Institute of Applied Physics, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Koichiro Takao
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
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6
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Bhaskaran A, Sharma D, Roy S, Singh SA. Technological solutions for NO x, SO x, and VOC abatement: recent breakthroughs and future directions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:91501-91533. [PMID: 37495811 DOI: 10.1007/s11356-023-28840-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
NOx, SOx, and carbonaceous volatile organic compounds (VOCs) are extremely harmful to the environment, and their concentrations must be within the limits prescribed by the region-specific pollution control boards. Thus, NOx, SOx, and VOC abatement is essential to safeguard the environment. Considering the importance of NOx, SOx, and VOC abatement, the discussion on selective catalytic reduction, oxidation, redox methods, and adsorption using noble metal and non-noble metal-based catalytic approaches were elaborated. This article covers different thermal treatment techniques, category of materials as catalysts, and its structure-property insights along with the advanced oxidation processes and adsorption. The defect engineered catalysts with lattice oxygen vacancies, bi- and tri-metallic noble metal catalysts and non-noble metal catalysts, modified metal organic frameworks, mixed-metal oxide supports, and their mechanisms have been thoroughly reviewed. The main hurdles and potential achievements in developing novel simultaneous NOx, SOx, and VOC removal technologies are critically discussed to envisage the future directions. This review highlights the removal of NOx, SOx, and VOC through material selection, properties, and mechanisms to further improve the existing abatement methods in an efficient way.
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Affiliation(s)
- Aathira Bhaskaran
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India
| | - Deepika Sharma
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, 333031, India
| | - Sounak Roy
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India
| | - Satyapaul A Singh
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India.
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, 500078, India.
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7
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Kirik N, Krylov A, Boronin A, Koshcheev S, Solovyov L, Rabchevskii E, Shishkina N, Anshits A. The Relationship between the Structural Characteristics of α-Fe 2O 3 Catalysts and Their Lattice Oxygen Reactivity Regarding Hydrogen. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4466. [PMID: 37374649 DOI: 10.3390/ma16124466] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/08/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
In this paper, the relationship between the structural features of hematite samples calcined in the interval of 800-1100 °C and their reactivity regarding hydrogen studied in the temperature-programmed reaction (TPR-H2) was studied. The oxygen reactivity of the samples decreases with the increasing calcination temperature. The study of calcined hematite samples used X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), and Raman spectroscopy, and their textural characteristics were studied also. According to XRD results, hematite samples calcined in the temperature range under study are monophase, represented by the α-Fe2O3 phase, in which crystal density increases with increasing calcination temperature. The Raman spectroscopy results also register only the α-Fe2O3 phase; the samples consist of large, well-crystallized particles with smaller particles on their surface, having a significantly lower degree of crystallinity, and their proportion decreases with increasing calcination temperature. XPS results show the α-Fe2O3 surface enriched with Fe2+ ions, whose proportion increases with increasing calcination temperature, which leads to an increase in the lattice oxygen binding energy and a decrease in the α-Fe2O3 reactivity regarding hydrogen.
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Affiliation(s)
- Nadezhda Kirik
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Alexander Krylov
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Kirensky Institute of Physics, 50/38, Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Andrey Boronin
- Federal Research Center Boreskov Institute of Catalysis, 5, Ac. Lavrentieva Ave., 630090 Novosibirsk, Russia
| | - Sergey Koshcheev
- Federal Research Center Boreskov Institute of Catalysis, 5, Ac. Lavrentieva Ave., 630090 Novosibirsk, Russia
| | - Leonid Solovyov
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Evgenii Rabchevskii
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Nina Shishkina
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
| | - Alexander Anshits
- Federal Research Center "Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences", Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
- Department of Chemistry, 79, Svobodny Ave., Siberian Federal University, 660041 Krasnoyarsk, Russia
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8
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Farooq A, Ko CH, Park YK. Sewage sludge steam gasification over bimetallic mesoporous Al-MCM48 catalysts for efficient hydrogen generation. ENVIRONMENTAL RESEARCH 2023; 224:115553. [PMID: 36822530 DOI: 10.1016/j.envres.2023.115553] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
This study explored the potential of steam gasification of sewage sludge over different temperatures (non-catalytic) and bimetallic (Ni-Fe and Ni-Co) mesoporous Al-MCM48 (3-5% Al basis). The higher temperature (800 °C) resulted in higher gas yield (36.74 wt%) and syngas (H2 and CO) selectivity (35.30 vol% and 11.66 vol%). Moreover, catalytic approach displayed that the Al-MCM48 was effective support because the incorporation of nickel increased the efficiency of gasification reactions compared to HZSM-5 (30). It mainly comes from the presence of mesopores and higher surface area (710.05 m2/g) providing more reaction sites and higher stability (less coke formation). Furthermore, the addition of promoters such as Co and Fe allowed the formation of Ni-Fe and Ni-Co alloys, resulting in even higher gas yield and overall H2 and CO selectivity due to the promotion of related reactions such as tar cracking, Boudouard, water gas shift and reforming and so on. Ni-Co alloy catalyst (10% Ni-5% Co/Al-MCM48) resulted in the highest H2 (∼52 vol%) selectivity due to the enhanced Ni dispersion and synergy effect between Ni and Co. Moreover, the application of bi-metal alloy on Al-MCM48 showed no coke formation and significantly reduced CO2 and hydrocarbon selectivity in the product gas. Overall, this study presented a promising solution for sewage sludge disposal in terms of clean H2 generation, reduction in CO2 and higher stability of metal based catalysts at the same time.
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Affiliation(s)
- Abid Farooq
- School of Environmental Engineering, University of Seoul, Seoul, 02504, South Korea
| | - Chang Hyun Ko
- School of Chemical Engineering, Chonnam National University, Gwangju, 61186, South Korea
| | - Y-K Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, South Korea.
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9
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Perco D, Loi F, Bignardi L, Sbuelz L, Lacovig P, Tosi E, Lizzit S, Kartouzian A, Heiz U, Baraldi A. The highest oxidation state observed in graphene-supported sub-nanometer iron oxide clusters. Commun Chem 2023; 6:61. [PMID: 37012362 PMCID: PMC10070315 DOI: 10.1038/s42004-023-00865-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Size-selected iron oxide nanoclusters are outstanding candidates for technological-oriented applications due to their high efficiency-to-cost ratio. However, despite many theoretical studies, experimental works on their oxidation mechanism are still limited to gas-phase clusters. Herein we investigate the oxidation of graphene-supported size-selected Fen clusters by means of high-resolution X-ray Photoelectron Spectroscopy. We show a dependency of the core electron Fe 2p3/2 binding energy of metallic and oxidized clusters on the cluster size. Binding energies are also linked to chemical reactivity through the asymmetry parameter which is related to electron density of states at the Fermi energy. Upon oxidation, iron atoms in clusters reach the oxidation state Fe(II) and the absence of other oxidation states indicates a Fe-to-O ratio close to 1:1, in agreement with previous theoretical calculations and gas-phase experiments. Such knowledge can provide a basis for a better understanding of the behavior of iron oxide nanoclusters as supported catalysts.
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Affiliation(s)
- Deborah Perco
- Department of Physics, University of Trieste, Via Valerio 2, 34127, Trieste, Italy
| | - Federico Loi
- Department of Physics, University of Trieste, Via Valerio 2, 34127, Trieste, Italy
| | - Luca Bignardi
- Department of Physics, University of Trieste, Via Valerio 2, 34127, Trieste, Italy
| | - Luca Sbuelz
- Department of Physics, University of Trieste, Via Valerio 2, 34127, Trieste, Italy
| | - Paolo Lacovig
- Elettra - Sincrotrone Trieste, AREA Science Park, 34149, Trieste, Italy
| | - Ezequiel Tosi
- Elettra - Sincrotrone Trieste, AREA Science Park, 34149, Trieste, Italy
| | - Silvano Lizzit
- Elettra - Sincrotrone Trieste, AREA Science Park, 34149, Trieste, Italy
| | - Aras Kartouzian
- Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Ueli Heiz
- Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Alessandro Baraldi
- Department of Physics, University of Trieste, Via Valerio 2, 34127, Trieste, Italy.
- Elettra - Sincrotrone Trieste, AREA Science Park, 34149, Trieste, Italy.
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10
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Chang J, Hülsey MJ, Wang S, Li M, Ma X, Yan N. Electrothermal Water-Gas Shift Reaction at Room Temperature with a Silicomolybdate-Based Palladium Single-Atom Catalyst. Angew Chem Int Ed Engl 2023; 62:e202218265. [PMID: 36700387 DOI: 10.1002/anie.202218265] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
The water-gas shift (WGS) reaction is often conducted at elevated temperature and requires energy-intensive separation of hydrogen (H2 ) from methane (CH4 ), carbon dioxide (CO2 ), and residual carbon monoxide (CO). Designing processes to decouple CO oxidation and H2 production provides an alternative strategy to obtain high-purity H2 streams. We report an electrothermal WGS process combining thermal oxidation of CO on a silicomolybdic acid (SMA)-supported Pd single-atom catalyst (Pd1 /CsSMA) and electrocatalytic H2 evolution. The two half-reactions are coupled through phosphomolybdic acid (PMA) as a redox mediator at a moderate anodic potential of 0.6 V (versus Ag/AgCl). Under optimized conditions, our catalyst exhibited a TOF of 1.2 s-1 with turnover numbers above 40 000 mol CO 2 ${{_{{\rm CO}{_{2}}}}}$ molPd -1 achieving stable H2 production with a purity consistently exceeding 99.99 %.
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Affiliation(s)
- Jinquan Chang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai, New City, Fuzhou, 350207, China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Max J Hülsey
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Sikai Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai, New City, Fuzhou, 350207, China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Maoshuai Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xinbin Ma
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai, New City, Fuzhou, 350207, China.,Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Ning Yan
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai, New City, Fuzhou, 350207, China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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11
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Selective Catalytic Reduction of NOx by CO over Cu(Fe)/SBA-15 Catalysts: Effects of the Metal Loading on the Catalytic Activity. Catalysts 2023. [DOI: 10.3390/catal13030527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Mesoporous Cu(Fe)/SBA-15 catalysts were prepared with distinct metal loadings of ca. 2–10 wt.%. A detailed set of characterizations using X-ray diffraction (XRD), electron paramagnetic resonance (EPR), transmission electron microscopy (TEM), scanning electron microscopy coupled to energy dispersive spectroscopy (SEM-EDS), Mössbauer spectroscopy, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy was performed to correlate the relationship among structure, electronic properties and catalytic performances. All solids were evaluated in the selective catalytic reduction of NOx in the presence of CO (CO-SCR). The influence of the metal loadings on the overall activity indicated that introducing high amounts of Fe or Cu on the catalysts was beneficial to form either CuO or α-Fe2O3 clusters. Cux/SBA-15 series exhibited more efficient activity and poison-tolerant ability during CO-SCR reaction, in contrast to Fex/SBA-15. In spite of the Fe species introduced on SBA-15 having structural features similar to those of Cu ones, low interactions among Fe nanoparticles, silica and clusters impeded the high performances of Fe10/SBA-15. XPS revealed the Fe species in a more oxidized state, indicating the stability of the solid after the catalytic tests, in agreement with EPR and Raman spectroscopy. Cu8/SBA-15 worked better, being recyclable due to the interaction of the Cu2+ ions with SBA-15, avoiding the deactivation of the catalyst.
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12
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Alshareef R, Nahil MA, Williams PT. Hydrogen Production by Three-Stage (i) Pyrolysis, (ii) Catalytic Steam Reforming, and (iii) Water Gas Shift Processing of Waste Plastic. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2023; 37:3894-3907. [PMID: 36897817 PMCID: PMC9986875 DOI: 10.1021/acs.energyfuels.2c02934] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 02/02/2023] [Indexed: 05/20/2023]
Abstract
The three-stage (i) pyrolysis, (ii) catalytic steam reforming, and (iii) water gas shift processing of waste plastic for the production of hydrogen have been investigated. The (i) pyrolysis and (ii) catalytic steam reforming process conditions were maintained throughout, and the experimental program investigated the influence of process conditions in the (iii) water gas shift reactor in terms of catalyst type (metal-alumina), catalyst temperature, steam/carbon ratio, and catalyst support material. The metal-alumina catalysts investigated in the (iii) water gas shift stage showed distinct maximization of hydrogen yield, which was dependent on the catalyst type at either higher temperature (550 °C) (Fe/Al2O3, Zn/Al2O3, Mn/Al2O3) or lower temperature (350 °C) (Cu/Al2O3, Co/Al2O3). The highest hydrogen yield was found with the Fe/Al2O3 catalyst; also, increased catalyst Fe metal loading resulted in improved catalytic performance, with hydrogen yield increasing from 107 mmol gplastic -1 at 5 wt % Fe loading to 122 mmol gplastic -1 at 40 wt % Fe/Al2O3 Fe loading. Increased addition of steam to the (iii) water gas shift reactor in the presence of the Fe/Al2O3 catalyst resulted in higher hydrogen yield; however, as further steam was added, the hydrogen yield decreased due to catalyst saturation. The Fe-based catalyst support materials investigated alumina (Al2O3), dolomite, MCM-41, silica (SiO2), and Y-zeolite; all showed similar hydrogen yields of ∼118 mmol gplastic -1, except for the Fe/MCM-41 catalyst, which produced only 88 mmol gplastic -1 of hydrogen yield.
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13
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Shen X, Li Z, Xu J, Li W, Tao Y, Ran J, Yang Z, Sun K, Yao S, Wu Z, Rac V, Rakic V, Du X. Upgrading the low temperature water gas shift reaction by integrating plasma with a CuOx/CeO2 catalyst. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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14
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Li XN, He SG. Gas-phase reactions driven by polarized metal-metal bonding in atomic clusters. Phys Chem Chem Phys 2023; 25:4444-4459. [PMID: 36723009 DOI: 10.1039/d2cp05148f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multimetallic catalysts exhibit great potential in the activation and catalytic transformation of small molecules. The polarized metal-metal bonds have been gradually recognized to account for the reactivity of multimetallic catalysts due to the synergistic effect of different metal centers. Gas-phase reactions on atomic clusters that compositionally resemble the active sites on related condensed-phase catalysts provide a widely accepted strategy to clarify the nature of polarized metal-metal bonds and the mechanistic details of elementary steps involved in the catalysis driven by this unique chemical bonding. This perspective review concerns the progress in the fundamental understanding of industrially and environmentally important reactions that are closely related to the polarized metal-metal bonds in clusters at a strictly molecular level. The following topics have been summarized and discussed: (1) catalytic CO oxidation with O2, H2O, and NO as oxidants (2) and the activation of other inert molecules (e.g., CH4, CO2, and N2) mediated with clusters featuring polarized metal-metal bonding. It turns out that the findings in the gas phase parallel the catalytic behaviors of condensed-phase catalysts and the knowledge can prove to be essential in inspiring future design of promising catalysts.
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Affiliation(s)
- Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. .,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China.,Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
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15
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Integration of catalytic methane oxy-reforming and water gas shift membrane reactor for intensified pure hydrogen production and methanation suppression over Ce0.5Zr0.5O2 based catalysts. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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16
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Jiang Y, Wang K, Wang Y, Liu Z, Gao X, Zhang J, Ma Q, Fan S, Zhao TS, Yao M. Recent advances in thermocatalytic hydrogenation of carbon dioxide to light olefins and liquid fuels via modified Fischer-Tropsch pathway. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2022.102321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Chen T, Chen J, Wu J, Song W, Hu S, Feng X, Chen Z, Yuan E, Ji W, Au CT. Atomic-Layer-Deposition Derived Pt subnano Clusters on the (110) Facet of Hexagonal Al 2O 3 Plates: Efficient for Formic Acid Decomposition and Water Gas Shift. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tingting Chen
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Jitian Chen
- University of Toronto, TorontoM5S1A1, Ontario, Canada
| | - Jianghua Wu
- National Laboratory of Solid-State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing210093, China
| | - Wenjing Song
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Shihao Hu
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Xinzhen Feng
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Zhaoxu Chen
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Enxian Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou225002, Jiangsu, China
| | - Weijie Ji
- Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210023, China
| | - Chak-Tong Au
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong999077, Hong Kong
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18
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Sharma HC, Chen H, Chandel AK. Biochar modification with hematite and goethite as efficient persulfate activation catalysts for sulfamethoxazole degradation: one-step biochar synthesis method and solution matrix effect on sulfamethoxazole removal kinetics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83931-83944. [PMID: 35776307 DOI: 10.1007/s11356-022-21743-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Using biochar to adsorb and degrade organic contaminants has attracted increasing attention due to its relatively low cost and high efficiency. In this work, two magnetic biochars were synthesized by pyrolyzing a mixture of naturally occurring hematite or goethite mineral and pine needle biomass. The biochar composite was characterized with X-ray diffraction, scanning electron microscopy, and surface area analyzer. The result demonstrated iron minerals have been deposited on carbon surfaces and been reduced to magnetite or wustite minerals. In comparison to the unmodified biochar, the iron mineral-modified biochar had better sorption ability, likely because the iron mineral particles on the carbon surface served as additional sorption sites for sulfamethoxazole (SMX) removal. After modification, the biochar also showed higher persulfate activation capacity with radical generation: at 4 h, neutral pH, 67.5 and 77.9% of persulfate is activated with hematite and goethite modified biochar, where only 11.7% persulfate is activated by unmodified biochar. With persulfate, goethite-modified biochar showed better SMX removal capacity than hematite-modified biochar with about 79% of SMX removed in 4 h. Solution chemistry such as pH and co-exist humic acid can affect SMX removal by affecting iron minerals. Because the magnetized biochar can be easily isolated and removed with external magnets, it can be used in various contaminant removal applications.
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Affiliation(s)
- Hem Chandra Sharma
- Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, AR, 71601, USA
| | - Hao Chen
- Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, AR, 71601, USA.
| | - Aneesh Kumar Chandel
- Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, AR, 71601, USA
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19
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Ariëns MI, van de Water L, Dugulan AI, Brück E, Hensen E. Substituting Chromium in Iron-Based Catalysts for the High-Temperature Water–Gas Shift Reaction. ACS Catal 2022; 12:13838-13852. [DOI: 10.1021/acscatal.2c03871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/25/2022] [Indexed: 11/29/2022]
Affiliation(s)
- M. I. Ariëns
- Fundamental Aspects of Materials and Energy, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - L.G.A. van de Water
- Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, United Kingdom
| | - A. I. Dugulan
- Fundamental Aspects of Materials and Energy, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
| | - E. Brück
- Fundamental Aspects of Materials and Energy, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
| | - E.J.M. Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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20
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Zhang Z, Zheng B, Tian H, He Y, Huang X, Ali S, Xu H. Rational design of highly efficient MXene-based catalysts for the water-gas-shift reaction. Phys Chem Chem Phys 2022; 24:18265-18271. [PMID: 35876328 DOI: 10.1039/d1cp05789h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water molecules linked by hydrogen bonds are responsible for the high efficiency of bi-functional catalysts for the water-gas-shift (WGS) reaction because water can act as a proton transfer medium. Herein, we propose an associative pathway for the WGS reaction assisted by water to realize hydrogen production. Based on this pathway, we show by first-principles calculations that a large family of oxygen-terminated two-dimensional transition metal carbides and nitrides (MXenes) deposited on Au clusters are promising catalysts for the WGS reaction. Remarkably, the rate-determining barriers for *CO → *COOH on Au/Mn+1XnO2 are in the range from 0.15 eV to 0.39 eV, indicating that WGS can occur at much lower temperatures. Furthermore, a comprehensive microkinetic model is constructed to describe the turnover frequencies (TOF) for the product under the steady-state conditions. More importantly, there is a perfect linear scaling relationship between the rate-determining barriers of the WGS and the free energy of the adsorbed hydrogen. Besides, the potential energy diagrams for CO reforming reveal that the F terminations introduced in experiments have only a slight influence on the catalytic performance of the oxygen-terminated MXenes. Our work not only opens a new avenue towards the WGS reaction but also provides many ideal catalysts for hydrogen production.
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Affiliation(s)
- Zhe Zhang
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225002, China.,Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Baobing Zheng
- College of Physics and Optoelectronic Technology, Nonlinear Research Institute, Baoji University of Arts and Sciences, Baoji 721016, China
| | - Hao Tian
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Department of Physics, The University of Hong Kong, Hong Kong
| | - Yanling He
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Department of Physics, The University of Hong Kong, Hong Kong
| | - Xiang Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sajjad Ali
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hu Xu
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China.,Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, 518055, China.,Shenzhen Key Laboratory for Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China.
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21
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Rigamonti MG, Shah M, Gambu TG, Saeys M, Dusselier M. Reshaping the Role of CO 2 in Propane Dehydrogenation: From Waste Gas to Platform Chemical. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marco G. Rigamonti
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Meera Shah
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Thobani G. Gambu
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Mark Saeys
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Michiel Dusselier
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
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22
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Transient Behavior of CO and CO2 Hydrogenation on Fe@SiO2 Core–Shell Model Catalysts—A Stoichiometric Analysis of Experimental Data. REACTIONS 2022. [DOI: 10.3390/reactions3030027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The hydrogenation of CO and CO2 from industrial exhaust gases into CH4 represents a promising method for sustainable chemical energy storage. While iron-based catalysts are in principle suitable for that purpose, the active metal Fe undergoes a complex transformation during the chemical reaction process. However, only little is known about the change in catalytically active species under reaction conditions, primarily caused by structural changes in the catalyst material, so far. By using core–shell model materials, factors that alter the catalyst structure can be excluded, making it possible to observe the direct influence of the reactants on the activity in the present work. Furthermore, stoichiometric analysis was used as a key tool for the evaluation of individual key reactions in the complex reaction network purely from experimental data, thus making it possible to draw conclusions about the catalyst state. In the case of CO hydrogenation, the presumed Boudouard reaction and the associated carburization of the catalyst can be quantified and the main reaction (CO methanation) can be determined. The results of the CO2 hydrogenation showed that the reverse water–gas shift reaction mainly took place, but under an ongoing change in the catalytic active iron phase. Due to the systematic exchange between CO and CO2 in the reactant gas stream, a mutual influence could also be observed. The results from the stoichiometric analysis provide the basis for the development of kinetic models for the key reactions in future work.
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23
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Cao X, Han YF, Peng C, Zhu M. A Review on the Water‐Gas Shift Reaction over Nickel‐Based Catalysts. ChemCatChem 2022. [DOI: 10.1002/cctc.202200190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinyu Cao
- East China University of Science and Technology School of Chemical Engineering CHINA
| | - Yi-Fan Han
- East China University of Science and Technology School of Chemical Engineering CHINA
| | - Chong Peng
- Sinopec: China Petrochemical Corporation School of Chemical Engineering CHINA
| | - Minghui Zhu
- East China University of Science and Technology Department of Chemical Engineering 130 Meilong Road 200237 Shanghai CHINA
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24
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Yi Z, Lin L, Chang Y, Luo X, Gao J, Mu R, Ning Y, Fu Q, Bao X. Dynamic transformation between bilayer islands and dinuclear clusters of Cr oxide on Au(111) through environment and interface effects. Proc Natl Acad Sci U S A 2022; 119:e2120716119. [PMID: 35605120 PMCID: PMC9295788 DOI: 10.1073/pnas.2120716119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 04/15/2022] [Indexed: 11/18/2022] Open
Abstract
SignificanceFor oxide catalysts, it is important to elucidate and further control their atomic structures. In this work, well-defined CrO2 bilayer islands and Cr2O7 dinuclear clusters have been grown on Au(111) and unambiguously identified by scanning tunneling microscopy and theoretical calculations. Upon cycled redox treatments, the two kinds of oxide nanostructures can be reversibly transformed. It is interesting to note that both Cr oxides do not exist in bulk but need to be stabilized by the metal surface and the specific environment. Our results suggest that both redox atmosphere and interface confinement effects can be used to construct an oxide nanostructure with the specific chemical state and structure.
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Affiliation(s)
- Zhiyu Yi
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Le Lin
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yuan Chang
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China
| | - Xuda Luo
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Gao
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China
| | - Rentao Mu
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yanxiao Ning
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qiang Fu
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xinhe Bao
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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25
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Pahija E, Panaritis C, Gusarov S, Shadbahr J, Bensebaa F, Patience G, Boffito DC. Experimental and Computational Synergistic Design of Cu and Fe Catalysts for the Reverse Water–Gas Shift: A Review. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ergys Pahija
- Department of Chemical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Christopher Panaritis
- Department of Chemical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Sergey Gusarov
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
| | - Jalil Shadbahr
- Energy, Mining and Environment Research Centre, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Farid Bensebaa
- Energy, Mining and Environment Research Centre, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Gregory Patience
- Department of Chemical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Daria Camilla Boffito
- Department of Chemical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
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26
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Abstract
Hydrogen (H2) has emerged as a sustainable energy carrier capable of replacing/complementing the global carbon-based energy matrix. Although studies in this area have often focused on the fundamental understanding of catalytic processes and the demonstration of their activities towards different strategies, much effort is still needed to develop high-performance technologies and advanced materials to accomplish widespread utilization. The main goal of this review is to discuss the recent contributions in the H2 production field by employing nanomaterials with well-defined and controllable physicochemical features. Nanoengineering approaches at the sub-nano or atomic scale are especially interesting, as they allow us to unravel how activity varies as a function of these parameters (shape, size, composition, structure, electronic, and support interaction) and obtain insights into structure–performance relationships in the field of H2 production, allowing not only the optimization of performances but also enabling the rational design of nanocatalysts with desired activities and selectivity for H2 production. Herein, we start with a brief description of preparing such materials, emphasizing the importance of accomplishing the physicochemical control of nanostructures. The review finally culminates in the leading technologies for H2 production, identifying the promising applications of controlled nanomaterials.
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27
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Kurbanova A, Zákutná D, Gołąbek K, Mazur M, Přech J. Preparation of Fe@MFI and CuFe@MFI composite hydrogenation catalysts by reductive demetallation of Fe-zeolites. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.09.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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28
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The Route from Green H2 Production through Bioethanol Reforming to CO2 Catalytic Conversion: A Review. ENERGIES 2022. [DOI: 10.3390/en15072383] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Currently, a progressively different approach to the generation of power and the production of fuels for the automotive sector as well as for domestic applications is being taken. As a result, research on the feasibility of applying renewable energy sources to the present energy scenario has been progressively growing, aiming to reduce greenhouse gas emissions. Following more than one approach, the integration of renewables mainly involves the utilization of biomass-derived raw material and the combination of power generated via clean sources with conventional power generation systems. The aim of this review article is to provide a satisfactory overview of the most recent progress in the catalysis of hydrogen production through sustainable reforming and CO2 utilization. In particular, attention is focused on the route that, starting from bioethanol reforming for H2 production, leads to the use of the produced CO2 for different purposes and by means of different catalytic processes, passing through the water–gas shift stage. The newest approaches reported in the literature are reviewed, showing that it is possible to successfully produce “green” and sustainable hydrogen, which can represent a power storage technology, and its utilization is a strategy for the integration of renewables into the power generation scenario. Moreover, this hydrogen may be used for CO2 catalytic conversion to hydrocarbons, thus giving CO2 added value.
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29
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Creutzburg M, Sellschopp K, Gleißner R, Arndt B, Vonbun-Feldbauer GB, Vonk V, Noei H, Stierle A. Surface structure of magnetite (111) under oxidizing and reducing conditions. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:164003. [PMID: 35051906 DOI: 10.1088/1361-648x/ac4d5a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
We report on differences in the magnetite (111) surface structure when prepared under oxidizing and reducing conditions. Both preparations were done under UHV conditions at elevated temperatures, but in one case the sample was cooled down while keeping it in an oxygen atmosphere. Scanning tunneling microscopy after each of the preparations showed a different apparent morphology, which is discussed to be an electronic effect and which is reflected in the necessity of using opposite bias tunneling voltages in order to obtain good images. Surface x-ray diffraction revealed that both preparations lead to Fe vacancies, leading to local O-terminations, the relative fraction of which depending on the preparation. The preparation under reducing conditions lead to a larger fraction of Fe-termination. The geometric structure of the two different terminations was found to be identical for both treatments, even though the surface and near-surface regions exhibit small compositional differences; after the oxidizing treatment they are iron deficient. Further evidence for the dependence of iron vs oxygen fractional surface terminations on preparation conditions comes from Fourier transform infrared reflection-absorption spectroscopy, which is used to study the adsorption of formic acid. These molecules dissociate and adsorb in chelating and bidentate bridging geometries on the Fe-terminated areas and the signal of typical infrared absorption bands is stronger after the preparation under reducing conditions, which results in a higher fraction of Fe-termination. The adsorption of formic acid induced an atomic roughening of the magnetite (111) surface which we conclude from the quantitative analysis of the crystal truncation rod data. The roughening process is initiated by atomic hydrogen, which results from the dissociation of formic acid after its adsorption on the surface. Atomic hydrogen adsorbs at surface oxygen and after recombination with another H this surface hydroxyl can form H2O, which may desorb from the surface, while iron ions diffuse into interstitial sites in the bulk.
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Affiliation(s)
- Marcus Creutzburg
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Kai Sellschopp
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestr. 15, 21073 Hamburg, Germany
| | - Robert Gleißner
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Björn Arndt
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Gregor B Vonbun-Feldbauer
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestr. 15, 21073 Hamburg, Germany
| | - Vedran Vonk
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Heshmat Noei
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Andreas Stierle
- Centre for X-Ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
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30
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Gao X, Lin X, Xie X, Li J, Wu X, Li Y, Kawi S. Modification strategies of heterogeneous catalysts for water-gas shift reactions. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00537e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Featured by high energy density, hydrogen has been deemed as a clean and renewable energy source compared with conventional fossil fuels. Water-gas shift reaction (WGSR) exhibits great potential in the...
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31
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Ariëns M, van de Water L, Dugulan A, Brück E, Hensen E. Copper promotion of chromium-doped iron oxide water-gas shift catalysts under industrially relevant conditions. J Catal 2022. [DOI: 10.1016/j.jcat.2021.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Abstract
Metal Fe is one of the phases existing on iron-based catalysts for a high-temperature water gas shift reaction (WGSR), but research on the activity of metal Fe in WGSR is almost not reported. In this work, the density functional theory (DFT) method was used to systematically study the reaction activity and mechanisms of WGSR on metal Fe (110), including the dissociation of H2O, the transformation of CO and the formation of H2, as well as the analysis of surface electronic properties. The results show that (1) the direct dissociation of H2O occurs easily on Fe (110) and the energy barrier is less than 0.9 eV; (2) the generation of CO2 is difficult and its energy barrier is above 1.8 eV; (3) H migrates easily on the Fe surface and the formation of H2 also occurs with an energy barrier of 1.47 eV. Combined with the results of Fe3O4, it can be concluded that the active phase should be Fe3O4 with O vacancy defects, and the iron-rich region plays an important role in promoting the formation of H2 in WGSR.
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33
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Chen Y, Lin J, Wang X. Noble-metal based single-atom catalysts for the water-gas shift reaction. Chem Commun (Camb) 2021; 58:208-222. [PMID: 34878466 DOI: 10.1039/d1cc04051k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single-atom catalysts (SACs) have attracted great attention in heterogeneous catalysis. In this Feature Article, we summarize the recent advances of typical Au and Pt-group-metal (PGM) based SACs and their applications in the water-gas shift (WGS) reaction in the past two decades. First, oxide and carbide supported single atoms are categorized. Then, the active sites in the WGS reaction are identified and discussed, with SACs as the positive state or metallic state. After that, the reaction mechanisms of the WGS are presented, which are classified into two categories of redox mechanism and associative mechanism. Finally, the challenges and opportunities in this emerging field for the collection of hydrogen are proposed on the basis of current developments. It is believed that more and more exciting findings based on SACs are forthcoming.
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Affiliation(s)
- Yang Chen
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China. .,Institute of Clean Energy Chemistry, Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province, College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Jian Lin
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
| | - Xiaodong Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
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34
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Zhang L, Dang Y, Zhou X, Gao P, Petrus van Bavel A, Wang H, Li S, Shi L, Yang Y, Vovk EI, Gao Y, Sun Y. Direct conversion of CO 2 to a jet fuel over CoFe alloy catalysts. ACTA ACUST UNITED AC 2021; 2:100170. [PMID: 34704085 PMCID: PMC8523875 DOI: 10.1016/j.xinn.2021.100170] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 09/26/2021] [Indexed: 11/30/2022]
Abstract
The direct conversion of carbon dioxide (CO2) using green hydrogen is a sustainable approach to jet fuel production. However, achieving a high level of performance remains a formidable challenge due to the inertness of CO2 and its low activity for subsequent C–C bond formation. In this study, we prepared a Na-modified CoFe alloy catalyst using layered double-hydroxide precursors that directly transforms CO2 to a jet fuel composed of C8–C16 jet-fuel-range hydrocarbons with very high selectivity. At a temperature of 240°C and pressure of 3 MPa, the catalyst achieves an unprecedentedly high C8–C16 selectivity of 63.5% with 10.2% CO2 conversion and a low combined selectivity of less than 22% toward undesired CO and CH4. Spectroscopic and computational studies show that the promotion of the coupling reaction between the carbon species and inhibition of the undesired CO2 methanation occur mainly due to the utilization of the CoFe alloy structure and addition of the Na promoter. This study provides a viable technique for the highly selective synthesis of eco-friendly and carbon-neutral jet fuel from CO2. An alloy is developed for the direct CO2 hydrogenation to jet-fuel-range hydrocarbons The selectivity of the hydrocarbons (63.5%) exceeds the theoretical maximum value The CoFe alloy is the active phase in the coupling reaction between surface carbons The CoFe alloy is a highly efficient catalyst in the presence of a sodium promoter
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Affiliation(s)
- Lei Zhang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, China
| | - Yaru Dang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaohong Zhou
- University of Chinese Academy of Sciences, Beijing 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Peng Gao
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Hao Wang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shenggang Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Lei Shi
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yong Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Evgeny I Vovk
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yihao Gao
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yuhan Sun
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,Shanghai Institute of Clean Technology, Shanghai 201620, China
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35
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Pei Q, Qiu G, Yu Y, Wang J, Tan KC, Guo J, Liu L, Cao H, He T, Chen P. Fabrication of More Oxygen Vacancies and Depression of Encapsulation for Superior Catalysis in the Water-Gas Shift Reaction. J Phys Chem Lett 2021; 12:10646-10653. [PMID: 34704756 DOI: 10.1021/acs.jpclett.1c02857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fabrication of sufficient oxygen vacancies and exposure of active sites to reactants are two key factors to obtain high catalytic activity in the water-gas shift (WGS) reaction. However, these two factors are hard to satisfy spontaneously, since the formation of oxygen vacancies and encapsulation of metal nanoparticles are two inherent properties in reducible metal oxide supported catalysts due to the strong metal-support interaction (SMSI) effect. In this work, we find that addition of alkali to an anatase supported Ni catalyst (Ni/TiO2(A)) could well regulate the SMSI to achieve both more oxygen vacancies and depression of encapsulation; therefore, more than 20-fold enhancement in activity is obtained. It is found that the in situ formed titanate species on the catalyst surface is crucial to the formation of oxygen vacancies and depression of encapsulation. Furthermore, the methanation, a common side reaction of the WGS reaction, is successfully suppressed in the whole catalytic process.
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Affiliation(s)
- Qijun Pei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guanghao Qiu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jintao Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Khai Chen Tan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianping Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lin Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hujun Cao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Teng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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36
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Wu Y, Pei C, Tian H, Liu T, Zhang X, Chen S, Xiao Q, Wang X, Gong J. Role of Fe Species of Ni-Based Catalysts for Efficient Low-Temperature Ethanol Steam Reforming. JACS AU 2021; 1:1459-1470. [PMID: 34604855 PMCID: PMC8479767 DOI: 10.1021/jacsau.1c00217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Indexed: 06/04/2023]
Abstract
The suppression of methane and coke formation over Ni-based catalysts for low temperature ethanol steam reforming remains challenging. This paper describes the structural evolution of Fe-modified Ni/MgAl2O4 catalysts and the influence of iron species on methane and coke suppression for low temperature ethanol steam reforming. Ni-Fe alloy catalysts are gradually oxidized by water to generate Ni-rich alloy and γ-Fe2O3 species at steam-to-carbon ratio of 4. The electron transfer from iron to nickel within Ni-Fe alloy weakens the CO adsorption and effectively alleviates the CO/CO2 methanation. The oxidation capacity of γ-Fe2O3 species promotes the transformation of ethoxy to acetate groups to avoid methane formation and the elimination of carbon deposits for anticoking. Ni10Fe10/MgAl2O4 shows a superior performance with a highest H2 yield of 4.6 mol/mol ethanol at 400 °C for 15 h. This research could potentially provide instructions for the design of Ni-based catalysts for low-temperature ethanol steam reforming.
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Affiliation(s)
- Yang Wu
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Chunlei Pei
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Hao Tian
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Tao Liu
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Xianhua Zhang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Sai Chen
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Quan Xiao
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Xianhui Wang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Jinlong Gong
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering & Technology, Collaborative Innovation
Center for Chemical Science & Engineering, Tianjin University, Tianjin 300072, China
- Joint
School of National University of Singapore and Tianjin University,
International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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37
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Chen JJ, Li XN, Liu QY, Wei GP, Yang Y, Li ZY, He SG. Water Gas Shift Reaction Catalyzed by Rhodium-Manganese Oxide Cluster Anions. J Phys Chem Lett 2021; 12:8513-8520. [PMID: 34463512 DOI: 10.1021/acs.jpclett.1c02267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fundamental understanding of the nature of active sites in real-life water gas shift (WGS) catalysts that can convert CO and H2O into CO2 and H2 is crucial to engineer related catalysts performing under ambient conditions. Herein, we identified that the WGS reaction can be, in principle, catalyzed by rhodium-manganese oxide clusters Rh2MnO1,2- in the gas phase at room temperature. This is the first example of the construction of such a potential catalysis in cluster science because it is challenging to discover clusters that can abstract the oxygen from H2O and then supply the anchored oxygen to oxidize CO. The WGS reaction was characterized by mass spectrometry, photoelectron spectroscopy, and quantum-chemical calculations. The coordinated oxygen in Rh2MnO1,2- is paramount for the generation of an electron-rich Mn+-Rh- bond that is critical to capture and reduce H2O and giving rise to a polarized Rh+-Rh- bond that functions as the real redox center to drive the WGS reaction.
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Affiliation(s)
- Jiao-Jiao Chen
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Gong-Ping Wei
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Yuan Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Zi-Yu Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
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38
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Shen K, Paige JM, Kwon O, Gorte RJ, Vohs JM. Thermodynamic Properties of Iron Oxide Thin-Film Oxygen Carriers Prepared by Atomic Layer Deposition. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kai Shen
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Julian M. Paige
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Ohhun Kwon
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Raymond J. Gorte
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - John M. Vohs
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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39
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Huang R, Lim C, Jang MG, Hwang JY, Han JW. Exsolved metal-boosted active perovskite oxide catalyst for stable water gas shift reaction. J Catal 2021. [DOI: 10.1016/j.jcat.2021.05.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Raghav H, Siva Kumar Konathala L, Mishra N, Joshi B, Goyal R, Agrawal A, Sarkar B. Fe-decorated hierarchical molybdenum carbide for direct conversion of CO2 into ethylene: Tailoring activity and stability. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Ruoppolo G, Miccio F, Miccio M, Brachi P, Chirone R. Sewage sludge ashes as a primary catalyst for the abatement of tar in biomass gasification: Bubbling versus spouted‐fluidized bed configuration. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Francesco Miccio
- Istituto di Scienza e Tecnologia dei Materiali Ceramici CNR Faenza Italy
| | - Michele Miccio
- Dipartimento di Ingegneria Industriale DIIn Università di Salerno Fisciano Italy
| | - Paola Brachi
- Istituto di Ricerche sulla Combustione CNR Naples Italy
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42
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The role of CO2 in the dehydrogenation of n-octane using Cr-Fe catalysts supported on MgAl2O4. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Kwawu CR, Aniagyei A. A review on the computational studies of the reaction mechanisms of CO 2 conversion on pure and bimetals of late 3d metals. J Mol Model 2021; 27:200. [PMID: 34117924 DOI: 10.1007/s00894-021-04811-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
Despite series of experimental studies that reveal unique activities of late 3d transition metals and their role in microorganisms known for CO2 conversion, these surfaces are not industrially viable yet. An insight into the elementary steps of surface catalytic processes is crucial for effective surface modification and design. The mechanisms of CO2 transformation into CO, through the reverse water gas shift and methane reforming, are being studied. Mechanisms of CO2 methanation is also being explored by the Sabatier reaction into methane. This review covers both experimental and theoretical studies into the mechanisms of CO2 reduction into CO and methane, on single metals and bimetals of late 3d transition metals, i.e. Fe, Co, Ni, Cu and Zn. This paper highlights progress and gaps still existing in our knowledge of the reaction mechanisms. These mechanistic studies reveal CO2 activation and reduction mechanisms are specific to both composition and surface facet. Surfaces with least CO2 binding potential are seen to favour CO and O binding and provide higher barriers to dissociation. No direct correlation has been seen between binding strength of CO2 and its degree of activation. Hydrogen-assisted dissociation is seen to be generally favoured kinetically on Cu and Ni surfaces over direct dissociation except on the Ni (211) surface. Methane production on Cu and Ni surfaces is seen to occur via the non-formate pathway. Hydrogenation reactions have focused on Cu and Ni, and more needs to be done on other surfaces, i.e. Co, Fe and Zn.
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Affiliation(s)
| | - Albert Aniagyei
- Department of Basic Sciences, University of Health and Allied Sciences, Ho, Ghana
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44
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Tian P, Gu M, Qiu R, Yang Z, Xuan F, Zhu M. Tunable Carbon Dioxide Activation Pathway over Iron Oxide Catalysts: Effects of Potassium. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01592] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pengfei Tian
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Mengwei Gu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Runfa Qiu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zixu Yang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Fuzhen Xuan
- Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Minghui Zhu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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45
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Ojelade OA, Zaman SF. A review on CO2 hydrogenation to lower olefins: Understanding the structure-property relationships in heterogeneous catalytic systems. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101506] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Creutzburg M, Sellschopp K, Tober S, Grånäs E, Vonk V, Mayr-Schmölzer W, Müller S, Noei H, Vonbun-Feldbauer GB, Stierle A. Heterogeneous Adsorption and Local Ordering of Formate on a Magnetite Surface. J Phys Chem Lett 2021; 12:3847-3852. [PMID: 33852797 DOI: 10.1021/acs.jpclett.1c00209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a novel heterogeneous adsorption mechanism of formic acid on the magnetite (111) surface. Our experimental results and density functional theory (DFT) calculations give evidence for dissociative adsorption of formic acid in quasibidentate and chelating geometries. The latter is induced by the presence of iron vacancies at the surface, making oxygen atoms accessible for hydrogen atoms from dissociated formic acid. DFT calculations predict that both adsorption geometries are energetically favorable under our experimental conditions. The calculations prove that the locally observed (√3 × √3)R 30° superstructure consists of three formate molecules in a triangular arrangement, adsorbed predominantly in a chelating geometry. The results show how defects can stabilize alternative adsorption geometries, which is a crucial ingredient for a detailed atomistic understanding of reaction barriers on magnetite and other oxide surfaces, as well as for the stability of carboxylic acid based nanocomposite materials.
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Affiliation(s)
- Marcus Creutzburg
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Jungiusstraße 9, 20355 Hamburg, Germany
| | - Kai Sellschopp
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestraße 15, 21073 Hamburg, Germany
| | - Steffen Tober
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Jungiusstraße 9, 20355 Hamburg, Germany
| | - Elin Grånäs
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Vedran Vonk
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Wernfried Mayr-Schmölzer
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestraße 15, 21073 Hamburg, Germany
| | - Stefan Müller
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestraße 15, 21073 Hamburg, Germany
| | - Heshmat Noei
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Gregor B Vonbun-Feldbauer
- Institute of Advanced Ceramics, Hamburg University of Technology (TUHH), Denickestraße 15, 21073 Hamburg, Germany
| | - Andreas Stierle
- DESY NanoLab, Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Jungiusstraße 9, 20355 Hamburg, Germany
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47
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Lais T, Lukashuk L, van de Water L, Hyde TI, Aramini M, Sankar G. Elucidation of copper environment in a Cu-Cr-Fe oxide catalyst through in situ high-resolution XANES investigation. Phys Chem Chem Phys 2021; 23:5888-5896. [PMID: 33660717 DOI: 10.1039/d0cp06468h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper containing materials are widely used in a range of catalytic applications. Here, we report the use of Cu K-edge high resolution XANES to determine the local site symmetry of copper ions during the thermal treatment of a Cu-Cr-Fe oxide catalyst. We exploited the Cu K-edge XANES spectral features, in particular the correlation between area under the pre-edge peak and its position to determine the local environment of Cu2+ ions. The information gained from this investigation rules out the presence of Cu2+ ions in a tetrahedral or square planar geometry, a mixture of these sites, or in a reduced oxidation state. Evidence is presented that the Cu2+ ions in the Cu-Cr-Fe oxide system are present in a distorted octahedral environment.
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Affiliation(s)
- Tahmin Lais
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
| | - Liliana Lukashuk
- Johnson Matthey, PO Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, UK
| | - Leon van de Water
- Johnson Matthey, PO Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, UK
| | - Timothy I Hyde
- Johnson Matthey, Blounts Court, Sonning Common, Reading, RG4 9NH, UK
| | - Matteo Aramini
- Diamond Light Source, Harwell Science & Innovation Campus, Oxfordshire OX11 0DE, UK
| | - Gopinathan Sankar
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
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48
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Preikschas P, Plodinec M, Bauer J, Kraehnert R, Naumann d’Alnoncourt R, Schlögl R, Driess M, Rosowski F. Tuning the Rh–FeO x Interface in Ethanol Synthesis through Formation Phase Studies at High Pressures of Synthesis Gas. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05365] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phil Preikschas
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Milivoj Plodinec
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Julia Bauer
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Ralph Kraehnert
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Raoul Naumann d’Alnoncourt
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Robert Schlögl
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Matthias Driess
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Metalorganic Chemistry and Inorganic Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Frank Rosowski
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- BASF SE, Process Research and Chemical Engineering, Heterogeneous Catalysis, Carl-Bosch-Straße 38, 67056 Ludwigshafen, Germany
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49
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Lee J, Li C, Kang S, Park J, Kim JM, Kim DH. Pt nanoparticles encapsulated in CeO2 over-layers synthesized by controlled reductive treatment to suppress CH4 formation in high-temperature water-gas shift reaction. J Catal 2021. [DOI: 10.1016/j.jcat.2021.01.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Nezam I, Zhou W, Gusmão GS, Realff MJ, Wang Y, Medford AJ, Jones CW. Direct aromatization of CO2 via combined CO2 hydrogenation and zeolite-based acid catalysis. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101405] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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