1
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Yoon SH, Jeon JH, Cho SB, Nacpil EJC, Jeon I, Choi JB, Kim H. Extreme Gradient Boosting to Predict Atomic Layer Deposition for Platinum Nano-Film Coating. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4984-4992. [PMID: 36947443 PMCID: PMC10100550 DOI: 10.1021/acs.langmuir.2c03465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Extreme gradient boosting (XGBoost) is an artificial intelligence algorithm capable of high accuracy and low inference time. The current study applies this XGBoost to the production of platinum nano-film coating through atomic layer deposition (ALD). In order to generate a database for model development, platinum is coated on α-Al2O3 using a rotary-type ALD equipment. The process is controlled by four parameters: process temperature, stop valve time, precursor pulse time, and reactant pulse time. A total of 625 samples according to different process conditions are obtained. The ALD coating index is used as the Al/Pt component ratio through ICP-AES analysis during postprocessing. The four process parameters serve as the input data and produces the Al/Pt component ratio as the output data. The postprocessed data set is randomly divided into 500 training samples and 125 test samples. XGBoost demonstrates 99.9% accuracy and a coefficient of determination of 0.99. The inference time is lower than that of random forest regression, in addition to a higher prediction safety than that of the light gradient boosting machine.
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Affiliation(s)
- Sung-Ho Yoon
- Electronic
Convergence Materials and Device Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Bundang-gu, Seongnam 13509, Republic
of Korea
- Mechanical
Engineering, Sungkyunkwan University, 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
- Department
of Nano Engineering, Department of Nano Science and Technology, SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Jun-Hyeok Jeon
- Electronic
Convergence Materials and Device Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Bundang-gu, Seongnam 13509, Republic
of Korea
- Mechanical
Engineering, Sungkyunkwan University, 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Seung-Beom Cho
- Mechanical
Engineering, Sungkyunkwan University, 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Edric John Cruz Nacpil
- Department
of Nano Engineering, Department of Nano Science and Technology, SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Il Jeon
- Department
of Nano Engineering, Department of Nano Science and Technology, SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Jae-Boong Choi
- Mechanical
Engineering, Sungkyunkwan University, 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Hyeongkeun Kim
- Electronic
Convergence Materials and Device Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Bundang-gu, Seongnam 13509, Republic
of Korea
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2
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Visualising Co nanoparticle aggregation and encapsulation in Co/TiO2 catalysts and its mitigation through surfactant residues. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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3
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van Koppen LM, Iulian Dugulan A, Leendert Bezemer G, Hensen EJ. Elucidating deactivation of titania-supported cobalt Fischer-Tropsch catalysts under simulated high conversion conditions. J Catal 2023. [DOI: 10.1016/j.jcat.2023.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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4
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Effect of Titanium Dioxide Support for Cobalt Nanoparticle Catalysts for Hydrogen Generation from Sodium Borohydride Hydrolysis. Catal Letters 2022. [DOI: 10.1007/s10562-022-04215-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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5
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Suo Y, Yao Y, Zhang Y, Xing S, Yuan ZY. Recent advances in cobalt-based Fischer-Tropsch synthesis catalysts. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Tang M, Wang Y. The Significant Role of the Atomic Surface Structure of Support in Strong Metal‐Support Interaction. Chemistry 2022; 28:e202104519. [DOI: 10.1002/chem.202104519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Min Tang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
- Materials Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University 3584 CG Utrecht The Netherlands
| | - Yong Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
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7
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Liu Q, Ding J, Wang R, Zhong Q. FeZnK/SAPO-34 Catalyst for Efficient Conversion of CO2 to Light Olefins. Catal Letters 2022. [DOI: 10.1007/s10562-021-03863-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Zhao J, He Y, Wang F, Yang Y, Zheng W, Huo C, Jiao H, Yang Y, Li Y, Wen X. A recyclable CoGa intermetallic compound catalyst for the hydroformylation reaction. J Catal 2021. [DOI: 10.1016/j.jcat.2021.09.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Qiu G, Pei Q, Yu Y, Jing Z, Wang J, He T, Chen P. Regulation of Strong Metal-Support Interaction by Alkaline Earth Metal Salts. Chem Asian J 2021; 16:2633-2640. [PMID: 34288552 DOI: 10.1002/asia.202100661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/16/2021] [Indexed: 11/08/2022]
Abstract
Classical strong metal-support interaction (SMSI) is of significant importance to heterogeneous catalysis, where electronic promotion and encapsulation of noble metal by reducible support are two main intrinsic properties of SMSI. However, the excessive encapsulation will inevitably hamper the contact between active sites and reactant, leading to reduced activity in catalysis. Herein, alkaline earth metal salts are employed to depress the encapsulation of Ru nanoparticles in Ru/TiO2 catalyst in the present study. Thermodynamic calculation, transmission electron microscopy (TEM) and chemisorption results show that the alkaline earth metal salts could successfully prevent the migration of TiO2-x overlayer to Ru nanoparticles in Ru/TiO2 catalyst via in situ formation of titanates, resulting in high exposure of active metal. Meanwhile, X-ray photoelectron spectroscopy (XPS) and hydrogen temperature-programmed reduction (H2 -TPR) results reveal that an even stronger electron donation from the reduced support to Ru nanoparticles is achieved. As a result, the alkaline earth metal salts-doped Ru/TiO2 catalysts exhibit superior activity in catalytic hydrogenation of aromatics, which is in contrast to the pristine Ru/TiO2 catalyst that shows negligible activity under the same conditions due to the excess encapsulation of Ru nanoparticles in Ru/TiO2 catalyst.
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Affiliation(s)
- Guanghao Qiu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qijun Pei
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Yang Yu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Zijun Jing
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Jintao Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Teng He
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Ping Chen
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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10
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Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth. Catalysts 2021. [DOI: 10.3390/catal11080986] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The catalytic activity of cobalt and iron nanoparticles for the growth of carbon nanotubes (CNTs) was studied by a specific reproducible and up-scalable fabrication method. Co and Fe catalysts were deposited over SiO2 nanoparticles by a wet-impregnation method and two different annealing steps were applied for the catalyst formation/activation. The samples were calcined at an optimal temperature of 450 °C resulting in the formation of metal oxide nano-islands without the detection of silicates. Further reduction treatment (700 °C) under H2 successfully converted oxide nanoparticles to Co and Fe metallic species. Furthermore, the catalytic efficiency of both supported-metal nanoparticles at 2 and 5% in weight of silica was evaluated through the growth of CNTs. The CNT structure, morphology and size dispersion were tailored according to the metal catalyst concentration.
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11
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Hutchings GJ. Spiers Memorial Lecture: Understanding reaction mechanisms in heterogeneously catalysed reactions. Faraday Discuss 2021; 229:9-34. [PMID: 34075992 DOI: 10.1039/d1fd00023c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterogeneous catalysis lies at the heart of the chemical and fuel manufacturing industries and hence is a cornerstone of many economies. Many of the commercially operated heterogeneous catalysts have remained basically unchanged for decades, undergoing small but important optimisation of their formulations. Yet we all acknowledge that there is a continuous drive towards improved catalysts or designing new ones. At the heart of these studies has been the need to gain an improved understanding of the reaction mechanism for these important reactions since this can unlock new ways to improve catalyst design and, of course, the ultimate aim is to design catalysts based on the detailed understanding of the reaction mechanism. These advanced studies have been aided in the last decade by two key factors, namely: (a) access to advanced characterisation techniques based on synchrotron methods and aberration-corrected microscopy that can probe the nature of the active site, and (b) the application of high-level computational methods to understand how the reactants and products interact at the active site. In this paper this theme will be explored using two examples to bring out the complexity in gaining an understanding of a reaction mechanism. Using the zeolite H-ZSM-5 as an example of a single site catalyst, the mechanism of the conversion of methanol to the first hydrocarbon carbon-carbon bond will be discussed. In this section the use of model reactants and reaction probes will be used to try to differentiate between different mechanistic proposals. The second example explores the use of gold catalysts for CO oxidation and acetylene hydrochlorination. In both these examples the importance of advanced characterisation and theory will be highlighted.
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Affiliation(s)
- Graham J Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK.
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12
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Wang T, Xu Y, Li Y, Xin L, Liu B, Jiang F, Liu X. Sodium-Mediated Bimetallic Fe–Ni Catalyst Boosts Stable and Selective Production of Light Aromatics over HZSM-5 Zeolite. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00169] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ting Wang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Yuebing Xu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Yufeng Li
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Lei Xin
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Feng Jiang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
| | - Xiaohao Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, Jiangsu, P.R. China
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13
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Tang M, Yuan W, Ou Y, Li G, You R, Li S, Yang H, Zhang Z, Wang Y. Recent Progresses on Structural Reconstruction of Nanosized Metal Catalysts via Controlled-Atmosphere Transmission Electron Microscopy: A Review. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03335] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Min Tang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wentao Yuan
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yang Ou
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guanxing Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ruiyang You
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Songda Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hangsheng Yang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ze Zhang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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14
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Qiu C, Odarchenko Y, Meng Q, Cong P, Schoen MAW, Kleibert A, Forrest T, Beale AM. Direct observation of the evolving metal-support interaction of individual cobalt nanoparticles at the titania and silica interface. Chem Sci 2020; 11:13060-13070. [PMID: 34123242 PMCID: PMC8163327 DOI: 10.1039/d0sc03113e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Understanding the metal–support interaction (MSI) is crucial to comprehend how the catalyst support affects performance and whether this interaction can be exploited in order to design new catalysts with enhanced properties. Spatially resolved soft X-ray absorption spectroscopy (XAS) in combination with Atomic Force Microscopy (AFM) and Scanning Helium Ion-Milling Microscopy (SHIM) has been applied to visualise and characterise the behaviour of individual cobalt nanoparticles (CoNPs) supported on two-dimensional substrates (SiOxSi(100) (x < 2) and rutile TiO2(110)) after undergoing reduction–oxidation–reduction (ROR). The behaviour of the Co species is observed to be strongly dependent on the type of support. For SiOxSi a weaker MSI between Co and the support allows a complete reduction of CoNPs although they migrate and agglomerate. In contrast, a stronger MSI of CoNPs on TiO2 leads to only a partial reduction under H2 at 773 K (as observed from Co L3-edge XAS data) due to enhanced TiO2 binding of surface-exposed cobalt. SHIM data revealed that the interaction of the CoNPs is so strong on TiO2, that they are seen to spread at and below the surface and even to migrate up to ∼40 nm away. These results allow us to better understand deactivation phenomena and additionally demonstrate a new understanding concerning the nature of the MSI for Co/TiO2 and suggest that there is scope for careful control of the post-synthetic thermal treatment for the tuning of this interaction and ultimately the catalytic performance. Understanding the metal–support interaction (MSI) is crucial to comprehend how the catalyst support affects performance and whether this interaction can be exploited in order to design new catalysts with enhanced properties.![]()
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Affiliation(s)
- Chengwu Qiu
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Yaroslav Odarchenko
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Qingwei Meng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Peixi Cong
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
| | - Martin A W Schoen
- Swiss Light Source, Paul Scherrer Institute Villigen 5232 Switzerland
| | - Armin Kleibert
- Swiss Light Source, Paul Scherrer Institute Villigen 5232 Switzerland
| | - Thomas Forrest
- Diamond Light Source Harwell Didcot Oxfordshire OX11 0DE UK
| | - Andrew M Beale
- Department of Chemistry, University College London 20 Gordon Street London WC1H 0AJ UK .,Research Complex at Harwell (RCaH) Harwell Didcot Oxfordshire OX11 0FA UK
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15
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Solomonik IG, Gorshkov AS, Mordkovich VZ. Fischer–Tropsch Synthesis over a Cobalt Catalyst Supported on Titania-Doped Silicon Carbide. CATALYSIS IN INDUSTRY 2020. [DOI: 10.1134/s2070050420030113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Chen W, Zheng W, Cao J, Fu W, Qian G, Chen D, Zhou X, Duan X. Atomic Insights into Robust Pt–PdO Interfacial Site-Boosted Hydrogen Generation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03214] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenyao Chen
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weizhong Zheng
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Junbo Cao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenzhao Fu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim N-7491, Norway
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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17
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Chernyak SA, Ivanov AS, Maksimov SV, Maslakov KI, Isaikina OY, Chernavskii PA, Kazantsev RV, Eliseev OL, Savilov SS. Fischer-Tropsch synthesis over carbon-encapsulated cobalt and iron nanoparticles embedded in 3D-framework of carbon nanotubes. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Song HC, Lee GR, Jeon K, Lee H, Lee SW, Jung YS, Park JY. Engineering Nanoscale Interfaces of Metal/Oxide Nanowires to Control Catalytic Activity. ACS NANO 2020; 14:8335-8342. [PMID: 32539337 DOI: 10.1021/acsnano.0c02347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The interfacial effect between a metal catalyst and its various supporting transition metal oxides on the catalytic activity of heterogeneous catalysis has been extensively explored; engineering interfacial sites of metal supported on metal oxide has been found to influence catalytic performance. Here, we investigate the interfacial effect of Pt nanowires (NWs) vertically and alternatingly stacked with titanium dioxide (TiO2) or cobalt monoxide (CoO) NWs, which exhibit a strong metal-support interaction under carbon monoxide (CO) oxidation. High-resolution nanotransfer printing based on nanoscale pattern replication and e-beam evaporation were utilized to obtain the Pt NWs cross-stacked on the CoO or TiO2 NW on the silicon dioxide (SiO2) substrate with varying numbers of nanowires. The morphology and interfacial area were precisely determined by means of atomic force microscopy and scanning electron microscopy. The cross-stacked Pt/TiO2 NW and Pt/CoO NW catalysts were estimated with CO oxidation under 40 Torr CO and 100 Torr O2 from 200 to 240 °C. Higher catalytic activity was found on the Pt/CoO NW catalyst than on Pt/TiO2 NWs and Pt NWs, which indicates the significance of nanoscale metal-oxide interfaces. As the number of nanowire layers increased, the catalytic activity became saturated. Our study demonstrates the interfacial role of nanoscale metal-oxide interfaces under CO oxidation, which has intriguing applications in the smart design of catalytic materials.
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Affiliation(s)
- Hee Chan Song
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Kiung Jeon
- Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Hyunhwa Lee
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Si Woo Lee
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
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19
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Paterson J, Partington R, Peacock M, Sullivan K, Wilson J, Xu Z. Elucidating the Role of Bifunctional Cobalt‐Manganese Catalyst Interactions for Higher Alcohol Synthesis. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- James Paterson
- BP, Centre of Expertise for Applied Chemistry and Physics Saltend Chemicals Park HU12 8DS Hull UK
| | - Roy Partington
- BP, Centre of Expertise for Applied Chemistry and Physics Saltend Chemicals Park HU12 8DS Hull UK
| | - Mark Peacock
- Analytical Group BP, Analytical Group, Petrochemicals 12 8DS Hull UK
| | - Kay Sullivan
- Analytical Group BP, Analytical Group, Petrochemicals 12 8DS Hull UK
| | - Jon Wilson
- Analytical Group BP, Analytical Group, Petrochemicals 12 8DS Hull UK
| | - Zhuoran Xu
- BP, CoE ACP 150 West Warrenville Rd 60563 Naperville Illinois USA
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20
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Krans N, van Uunen DL, Versluis C, Dugulan AI, Chai J, Hofmann JP, Hensen EJM, Zečević J, de Jong KP. Stability of Colloidal Iron Oxide Nanoparticles on Titania and Silica Support. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:5226-5235. [PMID: 32595267 PMCID: PMC7315821 DOI: 10.1021/acs.chemmater.0c01352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Using model catalysts with well-defined particle sizes and morphologies to elucidate questions regarding catalytic activity and stability has gained more interest, particularly utilizing colloidally prepared metal(oxide) particles. Here, colloidally synthesized iron oxide nanoparticles (Fe x O y -NPs, size ∼7 nm) on either a titania (Fe x O y /TiO2) or a silica (Fe x O y /SiO2) support were studied. These model catalyst systems showed excellent activity in the Fischer-Tropsch to olefin (FTO) reaction at high pressure. However, the Fe x O y /TiO2 catalyst deactivated more than the Fe x O y /SiO2 catalyst. After analyzing the used catalysts, it was evident that the Fe x O y -NP on titania had grown to 48 nm, while the Fe x O y -NP on silica was still 7 nm in size. STEM-EDX revealed that the growth of Fe x O y /TiO2 originated mainly from the hydrogen reduction step and only to a limited extent from catalysis. Quantitative STEM-EDX measurements indicated that at a reduction temperature of 350 °C, 80% of the initial iron had dispersed over and into the titania as iron species below imaging resolution. The Fe/Ti surface atomic ratios from XPS measurements indicated that the iron particles first spread over the support after a reduction temperature of 300 °C followed by iron oxide particle growth at 350 °C. Mössbauer spectroscopy showed that 70% of iron was present as Fe2+, specifically as amorphous iron titanates (FeTiO3), after reduction at 350 °C. The growth of iron nanoparticles on titania is hypothesized as an Ostwald ripening process where Fe2+ species diffuse over and through the titania support. Presynthesized nanoparticles on SiO2 displayed structural stability, as only ∼10% iron silicates were formed and particles kept the same size during in situ reduction, carburization, and FTO catalysis.
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Affiliation(s)
- Nynke
A. Krans
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Dónal L. van Uunen
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Caroline Versluis
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Achim Iulian Dugulan
- Fundamental
Aspects of Materials and Energy Group, Delft
University of Technology, Mekelweg 15, Delft 2629
JB, The Netherlands
| | - Jiachun Chai
- Inorganic
Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Jan P. Hofmann
- Inorganic
Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Emiel J. M. Hensen
- Inorganic
Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Jovana Zečević
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Krijn P. de Jong
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
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21
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Gholami Z, Tišler Z, Rubáš V. Recent advances in Fischer-Tropsch synthesis using cobalt-based catalysts: a review on supports, promoters, and reactors. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2020. [DOI: 10.1080/01614940.2020.1762367] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zahra Gholami
- Unipetrol Centre of Research and Education, Litvínov, Czech Republic
| | - Zdeněk Tišler
- Unipetrol Centre of Research and Education, Litvínov, Czech Republic
| | - Vlastimil Rubáš
- Unipetrol Centre of Research and Education, Litvínov, Czech Republic
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22
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Disk-Shaped Cobalt Nanocrystals as Fischer–Tropsch Synthesis Catalysts Under Industrially Relevant Conditions. Top Catal 2020. [DOI: 10.1007/s11244-020-01270-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractColloidal synthesis of metal nanocrystals (NC) offers control over size, crystal structure and shape of nanoparticles, making it a promising method to synthesize model catalysts to investigate structure-performance relationships. Here, we investigated the synthesis of disk-shaped Co-NC, their deposition on a support and performance in the Fischer–Tropsch (FT) synthesis under industrially relevant conditions. From the NC synthesis, either spheres only or a mixture of disk-shaped and spherical Co-NC was obtained. The disks had an average diameter of 15 nm, a thickness of 4 nm and consisted of hcp Co exposing (0001) on the base planes. The spheres were 11 nm on average and consisted of ε-Co. After mild oxidation, the CoO-NC were deposited on SiO2 with numerically 66% of the NC being disk-shaped. After reduction, the catalyst with spherical plus disk-shaped Co-NC had 50% lower intrinsic activity for FT synthesis (20 bar, 220 °C, H2/CO = 2 v/v) than the catalyst with spherical NC only, while C5+-selectivity was similar. Surprisingly, the Co-NC morphology was unchanged after catalysis. Using XPS it was established that nitrogen-containing ligands were largely removed and in situ XRD revealed that both catalysts consisted of 65% hcp Co and 21 or 32% fcc Co during FT. Furthermore, 3–5 nm polycrystalline domains were observed. Through exclusion of several phenomena, we tentatively conclude that the high fraction of (0001) facets in disk-shaped Co-NC decrease FT activity and, although very challenging to pursue, that metal nanoparticle shape effects can be studied at industrially relevant conditions.
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23
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Krans NA, Weber JL, van den Bosch W, Zečević J, de Jongh PE, de Jong KP. Influence of Promotion on the Growth of Anchored Colloidal Iron Oxide Nanoparticles during Synthesis Gas Conversion. ACS Catal 2020; 10:1913-1922. [PMID: 32064142 PMCID: PMC7011703 DOI: 10.1021/acscatal.9b04380] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/07/2020] [Indexed: 11/29/2022]
Abstract
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Using colloidal iron
oxide nanoparticles with organic ligands,
anchored in a separate step from the supports, has been shown to be
beneficial to obtain homogeneously distributed metal particles with
a narrow size distribution. Literature indicates that promoting these
particles with sodium and sulfur creates an active Fischer–Tropsch
catalyst to produce olefins, while further adding an H-ZSM-5 zeolite
is an effective way to obtain aromatics. This research focused on
the promotion of iron oxide colloids with sodium and sulfur using
an inorganic ligand exchange followed by the attachment to H-ZSM-5
zeolite crystals. The catalyst referred to as FeP/Z, which consists
of iron particles with inorganic ligands attached to a H-ZSM-5 catalyst,
was compared to an unpromoted Fe/Z catalyst and an Fe/Z-P catalyst,
containing the colloidal nanoparticles with organic ligands, promoted
after attachment. A low CO conversion was observed on both FeP/Z and
Fe/Z-P, originating from an overpromotion effect for both catalysts.
However, when both promoted catalysts were washed (FeP/Z-W and Fe/Z–P-W)
to remove the excess of promoters, the activity was much higher. Fe/Z-P-W
simultaneously achieved low selectivity toward methane as part of
the promoters were still present after washing, whereas for FeP/Z-W
the majority of promoters was removed upon washing, which increased
the methane selectivity. Moreover, due to the addition of Na+S promoters,
the iron nanoparticles in the FeP/Z(-W) catalysts had grown considerably
during catalysis, while those in Fe/Z-P(-W) and Fe/Z(-W) remained
relatively stable. Lastly, as a large broadening of particle sizes
for the used FeP/Z-W was found, where particle sizes had both increased
and decreased, Ostwald ripening is suggested for particle growth accelerated
by the presence of the promoters.
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Affiliation(s)
- N. A. Krans
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - J. L. Weber
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - W. van den Bosch
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - J. Zečević
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - P. E. de Jongh
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - K. P. de Jong
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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24
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van Deelen TW, Hernández Mejía C, de Jong KP. Control of metal-support interactions in heterogeneous catalysts to enhance activity and selectivity. Nat Catal 2019. [DOI: 10.1038/s41929-019-0364-x] [Citation(s) in RCA: 652] [Impact Index Per Article: 130.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Ismail ASM, Casavola M, Liu B, Gloter A, van Deelen TW, Versluijs M, Meeldijk JD, Stéphan O, de Jong KP, de Groot FMF. Atomic-Scale Investigation of the Structural and Electronic Properties of Cobalt–Iron Bimetallic Fischer–Tropsch Catalysts. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04334] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ahmed S. M. Ismail
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Marianna Casavola
- Experimental Biophysics and Nanotechnology group, Physics Department, King’s College London, WC2R 2LS London, United Kingdom
| | - Boyang Liu
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Alexandre Gloter
- Laboratoire de Physique des Solides, Universitè Paris-Sud, F-91405 Orsay, France
| | - Tom W. van Deelen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Marjan Versluijs
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Johannes D. Meeldijk
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Odile Stéphan
- Laboratoire de Physique des Solides, Universitè Paris-Sud, F-91405 Orsay, France
| | - Krijn P. de Jong
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Frank M. F. de Groot
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CG Utrecht, The Netherlands
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26
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Wolf M, Fischer N, Claeys M. Capturing the interconnectivity of water-induced oxidation and sintering of cobalt nanoparticles during the Fischer-Tropsch synthesis in situ. J Catal 2019. [DOI: 10.1016/j.jcat.2019.04.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Wang H, Wu B, Cai Y, Zhou C, Feng N, Liu G, Chen C, Wan H, Wang L, Guan G. Core–Shell-Structured Co–Z@TiO2 Catalysts Derived from ZIF-67 for Efficient Production of C5+ Hydrocarbons in Fischer–Tropsch Synthesis. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00533] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hu Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Bingxia Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Yuan Cai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Chengwei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Nengjie Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Geng Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Chong Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, People’s Republic of China
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28
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Godino-Ojer M, López-Peinado AJ, Maldonado-Hódar FJ, Bailón-García E, Pérez-Mayoral E. Cobalt oxide-carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedländer condensation. Dalton Trans 2019; 48:5637-5648. [PMID: 30968087 DOI: 10.1039/c8dt04403a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel series of eco-sustainable catalysts developed by supporting CoO nanoparticles on different carbon supports, highly efficient in the synthesis of quinolines and naphthyridines, through the Friedländer condensation, are reported for the first time. Textural properties, dispersion and location of the Co-phase are influenced by the nature of the carbon support, Co-precursor salt and metal loading, having a significant impact on the catalytic performance. Thus, the presence of the mesopores and macropores in carbon aerogels together with the homogeneous distribution of the active phase favours the formation of product 3a as a function of the metal loading. However, an increase in the metal content when using CNTs indicates the formation of CoO aggregates and an optimal concentration of 3 wt% CoO was observed, providing the highest conversion values. The carbon-based catalysts herein reported can be considered to be a sustainable alternative having advantages such as easy preparation, superior stability and notably enhanced catalytic performance, operating at lower temperature and under solvent-free conditions.
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Affiliation(s)
- Marina Godino-Ojer
- Departamento de Química Inorgánica y Química Técnica, Universidad Nacional de Educación a Distancia, UNED, Paseo Senda del Rey 9, Facultad de Ciencias, 28040, Madrid, Spain.
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29
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Nie L, Li Z, Kuang T, Lyu S, Liu S, Zhang Y, Peng B, Li J, Wang L. Role of well-defined cobalt crystal facets in Fischer-Tropsch synthesis: a combination of experimental and theoretical studies. Chem Commun (Camb) 2019; 55:10559-10562. [PMID: 31417988 DOI: 10.1039/c9cc05528b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pure-phase cobalt nanocrystals with well-defined specific exposed facets were synthesized via controllable reduction of their CoO counterparts while retaining the same scale of particle size. Three different catalysts, i.e. hexagonal close-packed (hcp) Co pyramid with (10-11) and rodlike with (10-10) facets, as well as face-centred cubic (fcc) Co octahedron with (111) exposed were obtained and studied for Fischer-Tropsch synthesis (FTS) reaction. No noticeable changes of either the shape or the exposed facets were found under practical FTS reaction conditions. The hcp (10-11) facet exhibits the highest FTS activity and C5+ product selectivity with the lowest apparent activation energy and CH4 selectivity. Theoretical calculations of the energy barrier for CO dissociation and methanation of the reaction intermediate CHx rationalize the experimental results.
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Affiliation(s)
- Lei Nie
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.
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