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Cherepanova SV, Koemets EG, Gerasimov EY, Simentsova II, Bulavchenko OA. Reducibility of Al 3+-Modified Co 3O 4: Influence of Aluminum Distribution. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6216. [PMID: 37763493 PMCID: PMC10532862 DOI: 10.3390/ma16186216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/29/2023]
Abstract
The reduction of Co-based oxides doped with Al3+ ions has been studied using in situ XRD and TPR techniques. Al3+-modified Co3O4 oxides with the Al mole fraction Al/(Co + Al) = 1/6; 1/7.5 were prepared via coprecipitation, with further calcination at 500 and 850 °C. Using XRD and HAADF-STEM combined with EDS element mapping, the Al3+ cations were dissolved in the Co3O4 lattice; however, the cation distribution differed and depended on the calcination temperature. Heating at 500 °C led to the formation of an inhomogeneous (Co,Al)3O4 solid solution; further treatment at 850 °C provoked the partial decomposition of mixed Co-Al oxides and the formation of particles with an Al-depleted interior and Al-enriched surface. It has been shown that the reduction of cobalt oxide by hydrogen occurs via the following transformations: (Co,Al)3O4 → (Co,Al)O → Co. Depending on the Al distribution, the course of reduction changes. In the case of the inhomogeneous (Co,Al)3O4 solid solution, Al stabilizes intermediate Co(II)-Al(III) oxides during reduction. When Al3+ ions are predominantly on the surface of the Co3O4 particles, the intermediate compound consists of Al-depleted and Al-enriched Co(II)-Al(III) oxides, which are reduced independently. Different distributions of elemental Co and Al in mixed oxides simulate different types of the interaction phase in Co3O4/γ-Al2O3-supported catalysts. These changes in the reduction properties can significantly affect the state of an active component of the Co-based catalysts.
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Affiliation(s)
- Svetlana V. Cherepanova
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
- Department of Physics, Novosibirsk State University, Pirogova, 2, Novosibirsk 630090, Russia
| | - Egor G. Koemets
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
| | - Evgeny Yu. Gerasimov
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
- Department of Physics, Novosibirsk State University, Pirogova, 2, Novosibirsk 630090, Russia
| | - Irina I. Simentsova
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
| | - Olga A. Bulavchenko
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
- Department of Physics, Novosibirsk State University, Pirogova, 2, Novosibirsk 630090, Russia
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Shi B, Zhang L, Sun H, Ren J, Wang H, Tang H, Bian Z. Efficient and recyclable Ni-Ce-Mn-N modified ordered mesoporous carbon electrode during electrocatalytic ozonation process for the degradation of simulated high-salt phenol wastewater. CHEMOSPHERE 2022; 304:135258. [PMID: 35679983 DOI: 10.1016/j.chemosphere.2022.135258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/23/2022] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
In this study, an efficient and stable NiO/CeO2/MnO2-modified nitrogen-doped ordered mesoporous carbon (NOMC) particle electrode was developed, in which the metal oxides were mosaicked within the pore channels by one-pot skeleton hybridization, and the comodification of NiO/CeO2/MnO2/N was found to improve the electrocatalytic activity and stability of the particle electrode. The improved stability of the ordered mesoporous carbon towards pore collapse was applied to the degradation of simulated high-salt phenol wastewater by an electrocatalytic ozonation process using simple binder pelletization. The modified ordered mesoporous carbon shows a specific surface area of 269.7 m2 g-1 and a pore size of 3.17 nm, and SEM and TEM were used to show that the mesoporous structure is well maintained and the metal nanoparticles are well dispersed. The electrochemically active area of the Ni2%/Ce0.5%/Mn2.5%-NOMC particle electrode reaches 224.65 mF cm-2, which indicates that NiO improves the capacitance of the ordered mesoporous carbon and accelerates the electron transfer efficiency. Encouragingly, the phenol removal efficiency is found to reach up to 93.0% for 60 min over a wide range of pH values, with an initial phenol concentration of 150 mg L-1, low current (0.03 A) and fast reaction rate (0.0895 min-1), and the presence of CeO2 ameliorates the low activity of the particle electrode under acidic conditions. These results indicate that the presence of pyridine-N and β-MnO2 effectively mitigates carbon corrosion and improves electrode stability, as the accumulation of large amounts of ·OH at 20 min and the maintenance of a degradation efficiency of more than 90% after eight cycles provides a viable solution for the widespread practical application of ordered mesoporous carbon particle electrodes.
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Affiliation(s)
- Bingyu Shi
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Lu Zhang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Haiying Sun
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Jianan Ren
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Hui Wang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China.
| | - Hanyu Tang
- College of Water Sciences, Beijing Normal University, Beijing, 100875, PR China
| | - Zhaoyong Bian
- College of Water Sciences, Beijing Normal University, Beijing, 100875, PR China.
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Effect of Preparation Conditions on Precipitated Iron-Based Catalysts for High-Temperature Fischer–Tropsch Synthesis of Light Olefins. Top Catal 2022. [DOI: 10.1007/s11244-022-01684-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Han Z, Qian W, Zhang H, Ma H, Sun Q, Ying W. Effect of Rare-Earth Promoters on Precipitated Iron-Based Catalysts for Fischer–Tropsch Synthesis. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06760] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhonghao Han
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weixin Qian
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haitao Zhang
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongfang Ma
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qiwen Sun
- State Key Laboratory of Coal Liquefaction and Coal Chemical Technology, Shanghai 201203, China
| | - Weiyong Ying
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Horáček J. Fischer–Tropsch synthesis, the effect of promoters, catalyst support, and reaction conditions selection. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02590-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ahn C, Mo Koo H, Ha K, Jeon J, Min Cho J, Kim Y, Young Han G, Lee J, Shin C, Wook Bae J. Adjusting Hydrocarbon Distribution on the Stabilized Al‐Modified Mesoporous Co
3
O
4
‐Fe
2
O
3
Bimetal Oxides for CO Hydrogenation. ChemCatChem 2020. [DOI: 10.1002/cctc.201902152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chang‐Il Ahn
- School of Chemical EngineeringSungkyunkwan University (SKKU) 2066 Seobu-ro Jangan-gu Suwon Gyeonggi-do 16418 Republic of Korea
- C1 gas refinery R&D center (CGRC)Sogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
| | - Hyun Mo Koo
- School of Chemical EngineeringSungkyunkwan University (SKKU) 2066 Seobu-ro Jangan-gu Suwon Gyeonggi-do 16418 Republic of Korea
- Department of Chemical EngineeringChungbuk National University (CNU) 1 Chungdae-ro Cheongju Chungbuk 28644 Republic of Korea
| | - Kyoung‐Su Ha
- Department of Chemical and Biomolecular EngineeringSogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
| | - Jonghyun Jeon
- Department of Chemical and Biomolecular EngineeringSogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
| | - Jae Min Cho
- School of Chemical EngineeringSungkyunkwan University (SKKU) 2066 Seobu-ro Jangan-gu Suwon Gyeonggi-do 16418 Republic of Korea
| | - Young‐Bo Kim
- C1 gas refinery R&D center (CGRC)Sogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
| | - Gui Young Han
- School of Chemical EngineeringSungkyunkwan University (SKKU) 2066 Seobu-ro Jangan-gu Suwon Gyeonggi-do 16418 Republic of Korea
| | - Jinwon Lee
- C1 gas refinery R&D center (CGRC)Sogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
- Department of Chemical and Biomolecular EngineeringSogang University (SGU) 35 Baekbeom-ro Mapo-gu Seoul 04107 Republic of Korea
| | - Chae‐Ho Shin
- Department of Chemical EngineeringChungbuk National University (CNU) 1 Chungdae-ro Cheongju Chungbuk 28644 Republic of Korea
| | - Jong Wook Bae
- School of Chemical EngineeringSungkyunkwan University (SKKU) 2066 Seobu-ro Jangan-gu Suwon Gyeonggi-do 16418 Republic of Korea
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Han Z, Qian W, Ma H, Zhang H, Sun Q, Ying W. Effects of Sm on Fe-Mn catalysts for Fischer-Tropsch synthesis. RSC Adv 2019; 9:32240-32246. [PMID: 35530804 PMCID: PMC9072974 DOI: 10.1039/c9ra05337a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/26/2019] [Indexed: 11/22/2022] Open
Abstract
Sm-promoted FeMn catalysts were prepared by the co-precipitation method and characterized by N2 adsorption, XRD, CO-TPD, H2-TPD, CO2-TPD, H2-TPR, XPS and MES. It was found that compared with the un-promoted catalyst, when Sm was added at a proper content, the catalyst showed a larger BET surface area and promoted the formation of iron particles with a smaller size. The presence of Sm could increase the surface charge density of iron, which enhanced the Fe–C bond and promoted the stability and amount of CO dissociated adsorption, as confirmed by XPS and CO-TPD. Furthermore, according to MES, Sm could promote the formation of Fe5C2, which was the active phase of FTS. In addition, Sm could also enhance the basicity of the catalysts and suppress the H2 adsorption capacity, which inhibited the hydrogenation reaction and the conversion of olefins to paraffins, as verified by the results of CO2-TPD and H2-TPD. According to the FTS performance results, compared with the observations for the un-promoted catalysts, when the molar ratio of Sm to Fe was 1%, the CO conversion increased from 63.4% to 70.4%, the sum of light olefins in the product distribution increased from 26.6% to 32.6, and the ratio of olefins to paraffins increased to 4.18 from 4.09. The effect of samarium on iron-based catalysts for Fischer–Tropsch synthesis was investigated.![]()
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Affiliation(s)
- Zhonghao Han
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252192 +86 21 64252151
| | - Weixin Qian
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252192 +86 21 64252151
| | - Hongfang Ma
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252192 +86 21 64252151
| | - Haitao Zhang
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252192 +86 21 64252151
| | - Qiwen Sun
- State Key Laboratory of Coal Liquefaction and Coal Chemical Technology Shanghai 201203 China
| | - Weiyong Ying
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252192 +86 21 64252151
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Al2O3–FSM16-supported cobalt catalyst: a promising novel Fischer–Tropsch synthesis catalyst. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01585-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Ordered Mesoporous Co
3
O
4
−Al
2
O
3
Binary Metal Oxides for CO Hydrogenation to Hydrocarbons: Synergy Effects of Phosphorus Modifier for an Enhanced Catalytic Activity and Stability. ChemCatChem 2019. [DOI: 10.1002/cctc.201802087] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Roles of phosphorous-modified Al2O3 for an enhanced stability of Co/Al2O3 for CO hydrogenation to hydrocarbons. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.11.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Feng X, Shen Q, Shi Y, Zhang J. One-pot hydrothermal synthesis of core-shell structured MnCO 3 @C as anode material for lithium-ion batteries with superior electrochemical performance. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.112] [Citation(s) in RCA: 24] [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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12
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Fischer-Trospch Synthesis on Ordered Mesoporous Cobalt-Based Catalysts with Compact Multichannel Fixed-Bed Reactor Application: A Review. CATALYSIS SURVEYS FROM ASIA 2016. [DOI: 10.1007/s10563-016-9219-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ahn CI, Lee YJ, Um SH, Bae JW. Ordered mesoporous CoMOx (M = Al or Zr) mixed oxides for Fischer–Tropsch synthesis. Chem Commun (Camb) 2016; 52:4820-3. [DOI: 10.1039/c5cc10124g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A superior structural stability of the ordered mesoporous CoMOx catalysts synthesized using the KIT-6 hard template was observed under the reductive Fischer–Tropsch reaction conditions due to the formation of strongly interacting stable Co3O4–ZrO2 mixed oxides.
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Affiliation(s)
- Chang-Il Ahn
- School of Chemical Engineering
- Sungkyunkwan University (SKKU)
- Suwon
- Republic of Korea
| | - Yun Jo Lee
- Research Center for Green Catalysis
- Korea Research Institute of Chemical Technology (KRICT)
- Daejon
- Republic of Korea
| | - Soong Ho Um
- School of Chemical Engineering
- Sungkyunkwan University (SKKU)
- Suwon
- Republic of Korea
| | - Jong Wook Bae
- School of Chemical Engineering
- Sungkyunkwan University (SKKU)
- Suwon
- Republic of Korea
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