1
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Hu S, Xie C, Xu YP, Chen X, Gao ML, Wang H, Yang W, Xu ZN, Guo GC, Jiang HL. Selectivity Control in the Direct CO Esterification over Pd@UiO-66: The Pd Location Matters. Angew Chem Int Ed Engl 2023; 62:e202311625. [PMID: 37656120 DOI: 10.1002/anie.202311625] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/02/2023]
Abstract
The selectivity control of Pd nanoparticles (NPs) in the direct CO esterification with methyl nitrite toward dimethyl oxalate (DMO) or dimethyl carbonate (DMC) remains a grand challenge. Herein, Pd NPs are incorporated into isoreticular metal-organic frameworks (MOFs), namely UiO-66-X (X=-H, -NO2 , -NH2 ), affording Pd@UiO-66-X, which unexpectedly exhibit high selectivity (up to 99 %) to DMC and regulated activity in the direct CO esterification. In sharp contrast, the Pd NPs supported on the MOF, yielding Pd/UiO-66, displays high selectivity (89 %) to DMO as always reported with Pd NPs. Both experimental and DFT calculation results prove that the Pd location relative to UiO-66 gives rise to discriminated microenvironment of different amounts of interface between Zr-oxo clusters and Pd NPs in Pd@UiO-66 and Pd/UiO-66, resulting in their distinctly different selectivity. This is an unprecedented finding on the production of DMC by Pd NPs, which was previously achieved by Pd(II) only, in the direct CO esterification.
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Affiliation(s)
- Shuaishuai Hu
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chenfan Xie
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yu-Ping Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structural of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 35000, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuelu Chen
- School of Energy and Power Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Ming-Liang Gao
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - He Wang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Weijie Yang
- School of Energy and Power Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structural of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 35000, P. R. China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structural of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 35000, P. R. China
| | - Hai-Long Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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2
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Lv S, Gu T, Wang J, Pan S, Liu F, Sun P, Wang L, Lu G. Pattern Recognition with Temperature Regulation: A Single YSZ-Based Mixed Potential Sensor Classifies Multiple Mixtures of Isoprene, n-Propanol, and Acetone. ACS Sens 2023; 8:4323-4333. [PMID: 37874741 DOI: 10.1021/acssensors.3c01698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Gas sensors integrated with machine learning algorithms have aroused keen interest in pattern recognition, which ameliorates the drawback of poor selectivity on a sensor. Among various kinds of gas sensors, the yttria-stabilized zirconia (YSZ)-based mixed potential-type sensor possesses advantages of low cost, simple structure, high sensitivity, and superior stability. However, as the number of sensors increases, the increased power consumption and more complicated integration technology may impede their extensive application. Herein, we focus on the development of a single YSZ-based mixed potential sensor from sensing material to machine learning for effective detection and discrimination of unary, binary, and ternary gas mixtures. The sensor that is sensitive to isoprene, n-propanol, and acetone is manufactured with the MgSb2O6 sensing electrode prepared by a simple sol-gel method. Unique response patterns for specific gas mixtures could be generated with temperature regulation. We chose seven algorithm models to be separately trained for discrimination. In order to realize more accurate discrimination, we further discuss the selection of suitable feature parameters and its reasons. With temperature regulation coefficients which are easily available as feature input to model, a single sensor is verified to achieve elevated accuracy rates of 95 and 99% for the discrimination of seven gases (three unary gases, three binary gas mixtures, and one ternary gas mixture) and redefined six gas mixtures. This article provides a potential new approach via a mixed potential sensor instead of a sensor array that could provide a wide application prospect in the field of electronic nose and artificial olfaction.
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Affiliation(s)
- Siyuan Lv
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Tianyi Gu
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Jing Wang
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
- School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Si Pan
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Fangmeng Liu
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Peng Sun
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Lijun Wang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Geyu Lu
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
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3
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Ye R, Zhang C, Zhang P, Lin L, Huang L, Huang Y, Li T, Zhou Z, Zhang R, Feng G, Yao YG. Facile preparation of efficient Cu-SiO2 catalysts using a polyhydroxy molecular template to regulate surface copper species for dimethyl oxalate hydrogenation. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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4
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Liu G, Yang G, Peng X, Wu J, Tsubaki N. Recent advances in the routes and catalysts for ethanol synthesis from syngas. Chem Soc Rev 2022; 51:5606-5659. [PMID: 35705080 DOI: 10.1039/d0cs01003k] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ethanol, as one of the important bulk chemicals, is widely used in modern society. It can be produced by fermentation of sugar, petroleum refining, or conversion of syngas (CO/H2). Among these approaches, conversion of syngas to ethanol (STE) is the most environmentally friendly and economical process. Although considerable progress has been made in STE conversion, control of CO activation and C-C growth remains a great challenge. This review highlights recent advances in the routes and catalysts employed in STE technology. The catalyst designs and pathway designs are summarized and analysed for the direct and indirect STE routes, respectively. In the direct STE routes (i.e., one-step synthesis of ethanol from syngas), modified catalysts of methanol synthesis, modified catalysts of Fischer-Tropsch synthesis, Mo-based catalysts, noble metal catalysts and multifunctional catalysts are systematically reviewed based on their catalyst designs. Further, in the indirect STE routes (i.e., multi-step processes for ethanol synthesis from syngas via methanol/dimethyl ether as intermediates), carbonylation of methanol/dimethyl ether followed by hydrogenation, and coupling of methanol with CO to form dimethyl oxalate followed by hydrogenation, are outlined according to their pathway designs. The goal of this review is to provide a comprehensive perspective on STE technology and inspire the invention of new catalysts and pathway designs in the near future.
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Affiliation(s)
- Guangbo Liu
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan. .,Key laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.
| | - Guohui Yang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
| | - Xiaobo Peng
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan. .,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, Fujian, China
| | - Jinhu Wu
- Key laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
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5
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Gao M, Yang P, Zhang X, Zhang Y, Li D, Feng J. Semi-quantitative design of synergetic surficial/interfacial sites for the semi-continuous oxidation of glycerol. FUNDAMENTAL RESEARCH 2022; 2:412-421. [PMID: 38933400 PMCID: PMC11197512 DOI: 10.1016/j.fmre.2021.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 11/30/2022] Open
Abstract
Qualitatively identifying the dominant catalytic site for each step of a semi-continuous reaction and semi-quantitatively correlating such different sites to the catalytic performance is of great significance toward the integration of multiple well-optimized sites on a heterogeneous catalyst. Herein, a series of structurally defined TiOx-based catalysts were synthesized to provide a feasible approach to investigate the aforementioned issues using the semi-continuous oxidation of glycerol as a model reaction. Detailed investigations have verified the simultaneous presence of two kinds of Pt active sites: 1) Negatively charged Pt bound to the oxygen vacancies of modified TiOx in the form of Ptδ--Ov-Ti3+ sites and 2) metallic Pt (Pt0 site) located away from the interface. Meanwhile, the proportion of surficial and interfacial sites varies over this series of catalysts. Combined in situ FTIR experiments revealed that the reaction network was well-tuned via a site cooperation mechanism: The surficial Pt0 sites dissociatively adsorb the OH group of glycerol with a monodentate bonding geometry and the Ptδ--Ov-Ti3+ sites dissociate the C=O bond of the aldehyde group in a bidentate form. Furthermore, CO-FTIR spectroscopy confirmed a correlation between the reaction rate/product selectivity and the fraction of surficial/interfacial sites. A rational proportion of surficial and interfacial sites is key to enabling a high yield of glyceric acid. The most active catalyst with 32% surface sites and 68% interfacial sites exhibited 90.0% glycerol conversion and 68.5% GLYA selectivity. These findings provide a deeper understanding of the structure-activity relationships using qualitative identification and semi-quantitative analysis.
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Affiliation(s)
- Mingyu Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Pengfei Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xinyi Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yani Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Dianqing Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Junting Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029, China
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6
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The exquisite inserting way: Pd and perovskite on the preferential oxidation of CO or H2. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Liu GW, Pan PB, Zhang X, Huang YY, Liu P, Qin YY, Yao YG. Tuning the Phase Structure of ZnTiO3 Support to Promote the Catalytic Activity of Pd/ZnTiO3 Catalyst for the CO Oxidative Coupling to Dimethyl Oxalate. Helv Chim Acta 2022. [DOI: 10.1002/hlca.202200017] [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)
| | - Peng-Bin Pan
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Key Laboratory of Coal to Ethylene Glycol and Its Related Technology CHINA
| | - Xin Zhang
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Key Laboratory of Coal to Ethylene Glycol and Its Related Technology CHINA
| | - Yuan-Yuan Huang
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Key Laboratory of Coal to Ethylene Glycol and Its Related Technology CHINA
| | - Peng Liu
- Fuzhou University College of Chemistry CHINA
| | - Ye-Yan Qin
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Key Laboratory of Coal to Ethylene Glycol and Its Related Technology CHINA
| | - Yuan-Gen Yao
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Key Laboratory of Coal to Ethylene Glycol and Its Related Technology Yangqiao West Road No.155 350002 Fuzhou CHINA
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8
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Zheng J, Huang L, Cui CH, Chen ZC, Liu XF, Duan X, Cao XY, Yang TZ, Zhu H, Shi K, Du P, Ying SW, Zhu CF, Yao YG, Guo GC, Yuan Y, Xie SY, Zheng LS. Ambient-pressure synthesis of ethylene glycol catalyzed by C 60-buffered Cu/SiO 2. Science 2022; 376:288-292. [PMID: 35420967 DOI: 10.1126/science.abm9257] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Bulk chemicals such as ethylene glycol (EG) can be industrially synthesized from either ethylene or syngas, but the latter undergoes a bottleneck reaction and requires high hydrogen pressures. We show that fullerene (exemplified by C60) can act as an electron buffer for a copper-silica catalyst (Cu/SiO2). Hydrogenation of dimethyl oxalate over a C60-Cu/SiO2 catalyst at ambient pressure and temperatures of 180° to 190°C had an EG yield of up to 98 ± 1%. In a kilogram-scale reaction, no deactivation of the catalyst was seen after 1000 hours. This mild route for the final step toward EG can be combined with the already-industrialized ambient reaction from syngas to the intermediate of dimethyl oxalate.
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Affiliation(s)
- Jianwei Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Lele Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Cun-Hao Cui
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Zuo-Chang Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Xu-Feng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Xinping Duan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Xin-Yi Cao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Tong-Zong Yang
- Xiamen Funano New Materials Technology Co., Ltd., Xiamen, China
| | - Hongping Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Kang Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Peng Du
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Si-Wei Ying
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Chang-Feng Zhu
- Xiamen Funano New Materials Technology Co., Ltd., Xiamen, China
| | - Yuan-Gen Yao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Youzhu Yuan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Su-Yuan Xie
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Lan-Sun Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Production of Alcohols-Ethers-Esters, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
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9
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Kong X, You X, Yuan P, Wang M, Wu Y, Wang R, Chen J. Mesoporous Cu Catalysts for Dimethyl Oxalate Selective Hydrogenation: Impact of the Cu/Al interface on the Textural Properties and Catalytic Behavior. ChemistrySelect 2022. [DOI: 10.1002/slct.202102609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiangpeng Kong
- Department of Chemistry and Chemical Engineering Taiyuan Institute of Technology Taiyuan 030008 P. R. China
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 P. R. China
| | - Xinming You
- Department of Chemistry and Chemical Engineering Taiyuan Institute of Technology Taiyuan 030008 P. R. China
- School of Chemical Engineering and Technology North University of China Taiyuan 030051 P. R. China
| | - Peihong Yuan
- Taiyuan Institute of Mine Design and Research Taiyuan 030012 P. R. China
| | - Man Wang
- Department of Chemistry and Chemical Engineering Taiyuan Institute of Technology Taiyuan 030008 P. R. China
| | - Yuehuan Wu
- Department of Chemistry and Chemical Engineering Taiyuan Institute of Technology Taiyuan 030008 P. R. China
| | - Ruihong Wang
- Department of Chemistry and Chemical Engineering Taiyuan Institute of Technology Taiyuan 030008 P. R. China
| | - Jiangang Chen
- State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 P. R. China
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10
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Affiliation(s)
- Yi‐Lun Sun
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences (CAS) Fuzhou 350002 Fujian P. R. China
| | - Guo‐Liang Chai
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences (CAS) Fuzhou 350002 Fujian P. R. China
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11
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Jiang H, Lin S, Xu Y, Sun J, Xu Z, Guo G. Lewis Acid in NaY Zeolite High Selectively Catalyze Methanol to Dimethoxymethane via Methyl Nitrite ※. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21120619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Zhao J, Yin LF, Ling LX, Zhang RG, Fan MH, Wang BJ. A predicted new catalyst to replace noble metal Pd for CO oxidative coupling to DMO. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01631h] [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
The reaction mechanisms of CO oxidative coupling to dimethyl oxalate (DMO) on different β-Mo2C(001) based catalysts have been studied by the density functional theory (DFT) method.
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Affiliation(s)
- Juan Zhao
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Li-Fei Yin
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Li-Xia Ling
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 E University Ave, Laramie, WY 82071, USA
| | - Ri-Guang Zhang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Mao-Hong Fan
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 E University Ave, Laramie, WY 82071, USA
| | - Bao-Jun Wang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
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13
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Zhang ZQ, Lin XQ, Jiang HB, Yang ZJ, Xu YP, Sun J, Xu ZN, Guo GC. Enhancing the activity of Pd/Zn–Al–O catalysts for esterification of CO to dimethyl oxalate via increasing oxygen defects by tuning the Zn/Al ratio. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00369d] [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
The enhancement of oxygen defects in the spinel support is the essential reason for the improvement of catalytic activity, which reveals the support effect of catalyst for CO direct esterification to dimethyl oxalate.
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Affiliation(s)
- Zi-Qun Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
- University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Xiao-Qi Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Hui-Bo Jiang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Zhi-Jian Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Yu-Ping Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Jing Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
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14
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Sachi, Singh AP, Thirumal M. Fabrication of AgNi Nano-alloy-Decorated ZnO Nanocomposites as an Efficient and Novel Hybrid Catalyst to Degrade Noxious Organic Pollutants. ACS OMEGA 2021; 6:34771-34782. [PMID: 34963960 PMCID: PMC8697397 DOI: 10.1021/acsomega.1c05266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/29/2021] [Indexed: 05/26/2023]
Abstract
Contamination through industrial effluents is a major threat to the environment. Degradation of organic pollutants remains a major challenge, and semiconductor-based catalysis is reported to be a viable solution. Recently, AgNi bimetallic alloy nanoparticles attracted great attention with superior properties. We report the synthesis of AgNi nano-alloy particles immobilized over the surface of ZnO hexagonal rods through an in situ chemical co-reduction process to develop a novel AgNi@ZnO nanocomposite for catalytic applications. The crystal structure, phase purity, morphology, particle size, and other properties of the as-synthesized AgNi@ZnO nanocomposite were scrutinized using powder X-ray diffraction, scanning electron microscopy, Raman spectroscopy, energy-dispersive X-ray analysis, multipoint Brunauer-Emmett-Teller, and transmission electron microscopy. The composite exhibits excellent catalytic activity toward the reduction of nitroarenes and environment polluting organic dyes. The synthesized nanocomposite shows enhanced catalytic activity with an incredible reaction rate constant, noticeable low degradation time, and greater stability. The catalyst is easily recyclable and exhibits consecutive catalytic cycle usage.
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Affiliation(s)
- Sachi
- Department of Chemistry, University
of Delhi, Delhi 110007, India
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15
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Tan H, Xu YP, Rong S, Zhao R, Cui H, Chen ZN, Xu ZN, Zhang NN, Guo GC. Enhanced metal-support interaction between Pd and hierarchical Nb 2O 5via oxygen defect induction to promote CO oxidative coupling to dimethyl oxalate. NANOSCALE 2021; 13:18773-18779. [PMID: 34747962 DOI: 10.1039/d1nr03370k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Production of ethylene glycol from coal is a particularly interesting route as it is an economic alternative to the petrochemical-based route. In this process, effectively generating dimethyl oxalate (DMO) is a crucial step by CO oxidative coupling reaction under Pd-based catalysts. However, the aggregation of Pd species over the support is still an issue that relates to the deterioration of catalytic activity and stability. To this end, enhancing the metal-support interaction is urgently required. In this work, hierarchical Nb2O5 (H-Nb2O5) microspheres with abundant oxygen defects were synthesized to anchor the Pd species thus promoting the electron transfer between Pd species and Nb species associated with the generation of interfacial Pd-NbOx sites. Besides, the thinned electron density of Pd species resulting from the electron-withdrawing effect of Nb species is beneficial for activating the adsorbed CO molecules, leading to superior catalytic activity. The Pd/H-Nb2O5 catalyst exhibited 63.1% of CO conversion (theoretical maximum conversion: 64.3%) and 92.9% of DMO selectivity, with a DMO weight time yield of 1297.9 g kgcat.-1 h-1, and remained robust even after 50 h of time on stream evaluation. Current work provides a deep insight into the CO activation mechanism and helps improve the catalytic stability by boosting interfacial electron interaction via oxygen defects induction, and also sheds light on the design and synthesis of high-performance catalysts in other heterogeneous catalysis fields.
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Affiliation(s)
- Hongzi Tan
- School of Chemistry & Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, P. R. China.
| | - Yu-Ping Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Siteng Rong
- School of Chemistry & Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, P. R. China.
| | - Rongrong Zhao
- School of Chemistry & Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, P. R. China.
| | - Hongyou Cui
- School of Chemistry & Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, P. R. China.
| | - Zhe-Ning Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Ning-Ning Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252000, P. R. China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
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16
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Yang L, Pan Z, Wang D, Wang S, Wang X, Ma H, Liu H, Wang C, Qu W, Tian Z. Highly Effective Pd/MgO/γ-Al 2O 3 Catalysts for CO Oxidative Coupling to Dimethyl Oxalate: The Effect of MgO Coating on γ-Al 2O 3. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28064-28071. [PMID: 34105350 DOI: 10.1021/acsami.1c04051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The support of MgO/γ-Al2O3 was initially prepared by a multiple impregnation method and Pd was placed on the surface of the MgO/γ-Al2O3 support via incipient wetness impregnation. Pd/MgO/γ-Al2O3 (Pd/MAO) catalysts were systematically characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), CO2-temperature-programmed desorption (TPD), transmission electron microscopy (TEM), CO-Fourier transform infrared (CO-FTIR), and X-ray photoelectron spectroscopy (XPS) and tested in the CO oxidative coupling to dimethyl oxalate (DMO) reaction. Compared to Pd/γ-Al2O3, the catalytic activities of the Pd/MAO catalysts improved significantly. The Pd/MAO catalyst with a 30% mass ratio of Mg to γ-Al2O3 delivers 3 times higher STY of DMO than that of Pd/γ-Al2O3. It has been demonstrated that MgO covered γ-Al2O3 layer-by-layer forming MAO supports, which can increase surface basicity and the interaction between Pd particles and the MAO supports. Moreover, the relationship between metal and support interaction and catalytic performance was discussed.
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Affiliation(s)
- Lin Yang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhendong Pan
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Donge Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shuaiqi Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoping Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huaijun Ma
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hao Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Congxin Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wei Qu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhijian Tian
- Dalian National Laboratory for Clean Energy, 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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17
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Jing KQ, Fu YQ, Chen ZN, Zhang T, Sun J, Xu ZN, Guo GC. Boosting Interfacial Electron Transfer between Pd and ZnTi-LDH via Defect Induction for Enhanced Metal-Support Interaction in CO Direct Esterification Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24856-24864. [PMID: 34009944 DOI: 10.1021/acsami.1c04523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Strong metal-support interaction is crucial to the stability of catalysts in heterogeneous catalysis. However, reports on boosting interfacial electron transfer between metal and support via defect induction for enhanced metal-support interaction are limited. In this work, ultrathin reducible ZnTi-layered double hydroxide (LDH) nanosheets with rich oxygen defects were synthesized to stabilize Pd clusters, and the rich oxygen defects promoted Pd cluster bonding with Zn and Ti atoms in supports, thereby forming a metal-metal bond. Electron spin resonance (ESR), X-ray absorption fine spectra (XAFS), and density functional theory (DFT) calculations demonstrate remarkable interfacial electron transfer (0.62 e). The Pd/ZnTi-LDH catalyst shows superior catalytic stability for CO direct esterification to dimethyl oxalate. By contrast, the nonreducible Pd/ZnAl-LDH catalyst with a few oxygen defects shows minimal interfacial electron transfer (0.08 e), which leads to relatively poor catalytic stability. This work provides a deep insight into promoting the stability of catalysts by boosting interfacial electron transfer via defect induction.
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Affiliation(s)
- Kai-Qiang Jing
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu-Qing Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhe-Ning Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Teng Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jing Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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18
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Oxygen Vacancy in CeO2 Facilitate the Catalytic Activity of Pd/CeO2 for CO Direct Esterification to Dimethyl Oxalate. Catal Letters 2021. [DOI: 10.1007/s10562-021-03650-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Xie B, Kumar P, Tan TH, Esmailpour AA, Aguey-Zinsou KF, Scott J, Amal R. Doping-Mediated Metal–Support Interaction Promotion toward Light-Assisted Methanol Production over Cu/ZnO/Al 2O 3. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bingqiao Xie
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Priyank Kumar
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Tze Hao Tan
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Ali Asghar Esmailpour
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | | | - Jason Scott
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Rose Amal
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
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20
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Study on Ammonia-induced Catalyst Poisoning in the Synthesis of Dimethyl Oxalate. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2021. [DOI: 10.9767/bcrec.16.1.9572.1-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
On an industrial plant, we observed and examined the ammonia-poisoning catalyst for the synthesis of dimethyl oxalate (DMO). We investigated the catalytic activity in response to the amount of ammonia and revealed the mechanism of such poisoning by X-ray photoelectron spectroscopy (XPS) characterization. Our results show that only 0.002% ammonia in the feed gas can significantly deactivate the Pd-based catalyst. Two main reasons were proposed: one is that the competitive adsorption of ammonia on the active component Pd hinders the carbon monoxide (CO) coupling reaction and the redox cycle between Pd0 and Pd2+; and the other is that the high-boiling nitrogen-containing amine compounds formed by reacting with ammonia have adsorbed on the catalyst, which hinders the progress of the catalytic reaction. The deactivation caused by the latter is irreversible. The catalytic activity can be completely restored by a low-temperature liquid-phase in-situ regeneration treatment. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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21
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Highly active Pd-Fe/α-Al2O3 catalyst with the bayberry tannin as chelating promoter for CO oxidative coupling to diethyl oxalate. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.07.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Effect of Calcination Temperature on the Textural Properties and Catalytic Behavior of the Al2O3 Doped Mesoporous Monometallic Cu Catalysts in Dimethyl Oxalate Hydrogenation. Catal Letters 2020. [DOI: 10.1007/s10562-020-03453-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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23
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Wang ZQ, Sun J, Xu ZN, Guo GC. CO direct esterification to dimethyl oxalate and dimethyl carbonate: the key functional motifs for catalytic selectivity. NANOSCALE 2020; 12:20131-20140. [PMID: 32749438 DOI: 10.1039/d0nr03008b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The direct esterification of CO involves processes using CO as the starting material and ester chemicals as products. Dimethyl oxalate (DMO) and dimethyl carbonate (DMC) are two different products of the direct CO esterification reaction. However, the effective control of the reaction pathway and direct synthesis of DMO and DMC are challenging. In this review, we summarize the recent research progress on the direct esterification of CO to DMO/DMC and reveal the functional motifs responsible for the catalytic selectivity. Firstly, we discuss the microstructure of catalysts for the direct esterification of CO to DMO and DMC, including the valence state and the aggregate state of Pd. Then, the influence of characteristics of the support on the selectivity is analyzed. Importantly, the aggregate state of the active component, Pd is deemed as a vital functional motif for catalytic selectivity. The isolated Pd is conducive for the formation of DMC, while the aggregated Pd is beneficial for the formation of DMO. This review will provide rational guidance for the direct esterification of CO to DMO and DMC.
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Affiliation(s)
- Zhi-Qiao Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China. and Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Jing Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China. and Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China. and Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China. and Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
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24
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Wang C, Xu W, Qin Z, Liu X, Mintova S. Low-temperature synthesis of α-alumina nanosheets on microfibrous-structured Al-fibers for Pd-catalyzed CO oxidative coupling to dimethyl oxalate. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Jing KQ, Fu YQ, Wang ZQ, Chen ZN, Tan HZ, Sun J, Xu ZN, Guo GC. Zn 2+ stabilized Pd clusters with enhanced covalent metal-support interaction via the formation of Pd-Zn bonds to promote catalytic thermal stability. NANOSCALE 2020; 12:14825-14830. [PMID: 32672320 DOI: 10.1039/d0nr02987d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Pd-Based heterogeneous catalysts have been demonstrated to be efficient in numerous heterogeneous reactions. However, the effect of the support resulting in covalent metal-support interaction (CMSI) has not been researched sufficiently. In this work, a Lewis base is modulated over MgAl-LDH to investigate the support effects and it is further loaded with Pd clusters to research the metal-support interactions. MgAl-LDH with ultra-low Pd loading (0.0779%) shows CO conversion (55.0%) and dimethyl oxalate (DMO) selectivity (93.7%) for CO oxidative coupling to DMO, which was gradually deactivated after evaluation for 20 h. To promote the stability of Pd/MgAl-LDH, Zn2+ ions were introduced into the MgAl-LDH support to strengthen the CMSI by forming Pd-Zn bonds, which further increased the adsorption energy of the Pd clusters on ZnMgAl-LDH, and this was verified by X-ray absorption fine structure (XAFS) measurements and density functional theory (DFT) calculations. The stability of the Pd/ZnMgAl-LDH catalyst could be maintained for at least 100 h. This work highlights that covalent metal-support interactions can be strengthened by forming new metal-metal bonds, which could be extended to other systems for the stabilization of noble metals over supports.
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Affiliation(s)
- Kai-Qiang Jing
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu-Qing Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhi-Qiao Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Zhe-Ning Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Hong-Zi Tan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Jing Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Zhong-Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
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26
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González-Fernández A, Berenguer-Murcia Á, Cazorla-Amorós D, Cárdenas-Lizana F. Zn-Promoted Selective Gas-Phase Hydrogenation of Tertiary and Secondary C4 Alkynols over Supported Pd. ACS APPLIED MATERIALS & INTERFACES 2020; 12:28158-28168. [PMID: 32479052 DOI: 10.1021/acsami.0c05285] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We have investigated the gas-phase (P = 1 atm; T = 373 K) hydrogenation of (tertiary alkynol) 2-methyl-3-butyn-2-ol (MBY) and (secondary) 3-butyn-2-ol (BY) over a series of carbon (C), non-reducible (Al2O3 and MgO), and reducible (CeO2 and ZnO) supported monometallic [Pd (0.6-1.2% wt) and Zn (1% wt)] and bimetallic Pd-Zn (Pd:Zn mol ratio = 95:5, 70:30, and 30:70) catalysts synthesized by deposition-precipitation and colloidal deposition. The catalysts have been characterized by H2 chemisorption, hydrogen temperature-programmed desorption (H2-TPD), specific surface area (SSA), X-ray photoelectron spectroscopy (XPS), and transmission (TEM) and scanning transmission electron microscopy (STEM) analyses. Reaction over these catalysts generated the target alkenol [2-methyl-3-buten-2-ol (MBE) and 3-buten-2-ol (BE)] through partial hydrogenation and alkanol [2-methyl-butan-2-ol (MBA) and 2-butanol (BA)]/ketone [2-butanone (BONE)] as a result of full hydrogenation and double-bond migration. The catalysts exhibit a similar Pd nanoparticle size (2.7 ± 0.3 nm) but a modified electronic character (based on XPS). Hydrogenation activity is linked to surface hydrogen (from H2 chemisorption and H2-TPD). An increase in H2:alkynol (from 1 → 10) results in enhanced alkynol consumption with a greater rate in the transformation of MBY (vs BY); H2:alkynol had negligible effect on product distribution. Reaction selectivity is insensitive to the Pd site electron density with a similar response (SMBE = 65 ± 9% and SBE = 70 ± 8%) over Pdδ- (on Al2O3 and MgO) and Pdδ+ (on C and CeO2). A Pd/ZnO catalyst delivered enhanced alkenol selectivity (SMBE = 90% and SBE = 96%) attributed to PdZn alloy phase formation (proved by XRD and XPS) but low activity, ascribed to metal encapsulation. A two-fold increase in the consumption rate was recorded for Pd-Zn/Al2O3 (30:70) versus Pd/ZnO with a similar alloy content (32 ± 4% from XPS), ascribed to a contribution due to spillover hydrogen (from H2-TPD) where high alkenol selectivity was maintained.
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Affiliation(s)
- Alberto González-Fernández
- Chemical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Ángel Berenguer-Murcia
- Instituto Universitario de Materiales de Alicante y Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente del Raspeig s/n, Ap. 99, 03080 Alicante, Spain
| | - Diego Cazorla-Amorós
- Instituto Universitario de Materiales de Alicante y Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente del Raspeig s/n, Ap. 99, 03080 Alicante, Spain
| | - Fernando Cárdenas-Lizana
- Chemical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
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27
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Sun Z, Yuan M, Shi K, Liu Y, Wang D, Nan C, Li H, Sun G, Yang X. Engineering Lithium Ions Embedded in NiFe Layered Double Hydroxide Lattices To Activate Laminated Ni
2+
Sites as High‐Efficiency Oxygen Evolution Reaction Catalysts. Chemistry 2020; 26:7244-7249. [DOI: 10.1002/chem.201905844] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/16/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Zemin Sun
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Mengwei Yuan
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Kefan Shi
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Yuhui Liu
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Di Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Caiyun Nan
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Huifeng Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Genban Sun
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
| | - Xiaojing Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of ChemistryBeijing Normal University Beijing 100875 P.R. China
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28
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Lopez GEP, Madrid JF, Camacho DH. Gamma radiation-assisted in situ synthesis of palladium nanoparticles supported on ethylenediamine-functionalized polypropylene fabric as an efficient catalyst for reduction of 4-nitrophenol. NEW J CHEM 2020. [DOI: 10.1039/d0nj03501g] [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
Immobilization of Pd nanometals on a functionalized non-woven polypropylene fabric offers heterogenous catalytic activity in many chemical transformations and convenient separation from the reaction mixture.
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Affiliation(s)
- Girlie Eunice P. Lopez
- Philippine Nuclear Research Institute – Department of Science and Technology
- Quezon City
- Philippines
- Chemistry Department
- De La Salle University
| | - Jordan F. Madrid
- Philippine Nuclear Research Institute – Department of Science and Technology
- Quezon City
- Philippines
| | - Drexel H. Camacho
- Chemistry Department
- De La Salle University
- Manila 0922
- Philippines
- Organic Materials and Interfaces Unit
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29
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Kong X, Wu Y, Ding L, Wang R, Chen J. Effect of Cu loading on the structural evolution and catalytic activity of Cu–Mg/ZnO catalysts for dimethyl oxalate hydrogenation. NEW J CHEM 2020. [DOI: 10.1039/c9nj06085e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proper Cu loading introduced into the Cu–Mg/ZnO system facilitates strengthening of the Cu–Zn synergistic effect and optical surface chemical properties.
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Affiliation(s)
- Xiangpeng Kong
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- P. R. China
- State Key Laboratory of Coal Conversion
| | - Yuehuan Wu
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- P. R. China
| | - Lifeng Ding
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- P. R. China
| | - Ruihong Wang
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- P. R. China
| | - Jiangang Chen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- P. R. China
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30
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Li Q, Yu H, Li K, Yin H, Zhou S. Controlled Synthesis and Enhanced Catalytic Activity of Well-Defined Close-Contact Pd-ZnO Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6288-6296. [PMID: 31030518 DOI: 10.1021/acs.langmuir.9b00252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, PdZn-ordered intermetallic nanoparticles (NPs) were prepared in liquid phase by butyllithium co-reduction of their precursors at 240 °C. Through calcination and subsequent reduction with H2, the synthesized PdZn NPs were then in situ transformed into Pd-ZnO heteroaggregate nanocatalysts on alumina supports. Various characterization techniques, such as diffuse reflectance Fourier transform infrared with CO probes, transmission electron microscopy, X-ray diffraction, H2 temperature-programmed reduction, and X-ray photoelectron spectra, reveal that PdZn NPs are ordered intermetallic compounds, and in situ transformation of PdZn alloy NPs results in close-contact Pd-ZnO heteroaggregates, where the interfaces are highly active and the interaction between Pd and ZnO prevents the active particles from agglomeration. The catalytic hydrogenations of nitrophenols over Pd/Al2O3 and Pd-ZnO/Al2O3 were investigated. The results show that Pd-ZnO/Al2O3 illustrates an enhanced catalytic activity relative to Pd/Al2O3, and no obvious activity degradation was observed in the recycle catalytic experiments over such nanostructures. It is concluded that the Pd-ZnO interaction not only enhances the catalytic hydrogenation activity but also promotes the thermal and catalytic stability.
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Affiliation(s)
- Qi Li
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Hongbo Yu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Kaijie Li
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Hongfeng Yin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo , Zhejiang 315201 , P. R. China
| | - Shenghu Zhou
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
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31
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Oh JY, Yu JM, Chowdhury SR, Lee TI, Misra M. Significant impact of Pd nanoparticle and CdS nanolayer of Pd@CdS@ZnO core-shell nanorods on enhancing catalytic, photoelectrochemical and photocurrent generation activity. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.088] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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32
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Wang C, Xu W, Qin Z, Mintova S. Spontaneous galvanic deposition of nanoporous Pd on microfibrous-structured Al-fibers for CO oxidative coupling to dimethyl oxalate. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2018.10.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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33
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Peng SY, Yang L, Yu L, Li XY, Zhou YZ, Lv Y, Zhu F. Well-defined Pd anchoring on the surface of porous ZnO nanocomposites with excellent photocatalytic activity and good reusability for the removal of phenol from water. NEW J CHEM 2019. [DOI: 10.1039/c9nj04127c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-defined Pd/ZnO nanocomposites prepared by modifying ZnO nanosheets with Pd nanoparticles exhibit excellent photocatalytic activity and good reusability for the removal of phenol from water.
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Affiliation(s)
- Si-Yan Peng
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
- State Key Laboratory of Structural Chemistry
| | - Liusai Yang
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
| | - Leshu Yu
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
| | - Xiao-Yun Li
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
| | - Yuan-Zhen Zhou
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
| | - Yingying Lv
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
| | - Feng Zhu
- School of Chemistry and Environmental Science
- Shangrao Normal University
- Shangrao
- P. R. China
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34
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Development of a plant-wide Dimethyl Oxalate (DMO) synthesis process from syngas: Rigorous design and optimization. Comput Chem Eng 2018. [DOI: 10.1016/j.compchemeng.2018.08.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Ma M, Hao W, Ma L, Zheng Y, Lian P, Wan X. Interception of Radicals by Molecular Oxygen and Diazo Compounds: Direct Synthesis of Oxalate Esters Using Visible-Light Catalysis. Org Lett 2018; 20:5799-5802. [DOI: 10.1021/acs.orglett.8b02487] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meihua Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Weiwei Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Liang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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36
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Ling L, Feng X, Cao Y, Liu P, Fan M, Zhang R, Wang B. The catalytic CO oxidative coupling to dimethyl oxalate on Pd clusters anchored on defected graphene: A theoretical study. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Wei B, Sheng K, Ge J. Internally Supported Metal-Oxide Nanocatalyst for Hydrogenation of Nitroaromatics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7077-7085. [PMID: 29806981 DOI: 10.1021/acs.langmuir.7b04200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The uncalcined but highly dispersive oxide-supported metal catalyst for liquid phase reactions may suffer from the agglomeration of metal nanoparticles and the drop of metal catalyst in solution, which will decrease the activity and shorten their life in catalysis. Here, a one-pot successive polyol reaction was developed to prepare M-E xO y colloidal particles as heterogeneous nanocatalysts, which merge the controlled synthesis of metal catalysts and oxide supports, the in situ loading of catalyst, and even the mesopore amplification into a highly integrated process. Unlike the traditional surface-deposited catalysts, the noble metal nanoparticles even with a large amount of loading are internally dispersed in the mesoporous oxide particles, which show higher activity and stability in the hydrogenation of nitroaromatics compared to the isolated nanocatalysts or surface-deposited catalysts. The improved activity and stability comes from the physical confinement of metal nanoparticles and good mass transportation of substrate/product within the support particles. This work proposed a novel method to prepare highly dispersed metal catalysts, which could be potentially useful to heterogeneous catalytic reactions with high-throughput and long-life demands.
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Affiliation(s)
- Bo Wei
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , China
| | - Kefa Sheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , China
| | - Jianping Ge
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , China
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38
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Duan S, Wang R, Liu J. Stability investigation of a high number density Pt 1/Fe 2O 3 single-atom catalyst under different gas environments by HAADF-STEM. NANOTECHNOLOGY 2018; 29:204002. [PMID: 29473830 DOI: 10.1088/1361-6528/aab1d2] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Catalysis by supported single metal atoms has demonstrated tremendous potential for practical applications due to their unique catalytic properties. Unless they are strongly anchored to the support surfaces, supported single atoms, however, are thermodynamically unstable, which poses a major obstacle for broad applications of single-atom catalysts (SACs). In order to develop strategies to improve the stability of SACs, we need to understand the intrinsic nature of the sintering processes of supported single metal atoms, especially under various gas environments that are relevant to important catalytic reactions. We report on the synthesis of high number density Pt1/Fe2O3 SACs using a facial strong adsorption method and the study of the mobility of these supported Pt single atoms at 250 °C under various gas environments that are relevant to CO oxidation, water-gas shift, and hydrogenation reactions. Under the oxidative gas environment, Fe2O3 supported Pt single atoms are stable even at high temperatures. The presence of either CO or H2 molecules in the gas environment, however, facilitates the movement of the Pt atoms. The strong interaction between CO and Pt weakens the binding between the Pt atoms and the support, facilitating the movement of the Pt single atoms. The dissociation of H2 molecules on the Pt atoms and their subsequent interaction with the oxygen species of the support surfaces dislodge the surface oxygen anchored Pt atoms, resulting in the formation of Pt clusters. The addition of H2O molecules to the CO or H2 significantly accelerates the sintering of the Fe2O3 supported Pt single atoms. An anchoring-site determined sintering mechanism is further proposed, which is related to the metal-support interaction.
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Affiliation(s)
- Sibin Duan
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China. Department of Physics, Arizona State University, Tempe, Arizona 85287, United States of America
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39
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Han B, Feng X, Ling L, Fan M, Liu P, Zhang R, Wang B. CO oxidative coupling to dimethyl oxalate over Pd-Me (Me = Cu, Al) catalysts: a combined DFT and kinetic study. Phys Chem Chem Phys 2018; 20:7317-7332. [PMID: 29485174 DOI: 10.1039/c7cp08306h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO oxidative coupling to dimethyl oxalate (DMO) on Pd(111), Pd-Cu(111) and Pd-Al(111) surfaces was systematically investigated by means of density functional theory (DFT) together with periodic slab models and micro-kinetic modeling. The binding energy results show that Cu and Al can be fine substrates to stably support Pd. The favorable pathway for DMO synthesis on these catalysts starts from the formation of two COOCH3 intermediates, followed by the coupling to each other, and the catalytic activity follows the trend of Pd-Al(111) > Pd(111) > Pd-Cu(111). Additionally, the formation of DMO is far favorable than that of dimethyl carbonate (DMC) on these catalysts. The results were further demonstrated by micro-kinetic modeling. Therefore, Pd-Al bimetallic catalysts can be applied in practice to effectively enhance the catalytic performance and greatly reduce the cost. This study can help with fine-tuning and designing of high-efficient and low-cost Pd-based bimetallic catalysts.
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Affiliation(s)
- Bingying Han
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan 030024, P. R. China.
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40
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Li X, Wu Q, Zhang B, Zhang C, Lin W, Cheng H, Zhao F. Efficient conversion of glycerol to 1, 2-propenadiol over ZnPd/ZnO-3Al catalyst: The significant influences of calcination temperature. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Yousefi R, Beheshtian J, Seyed-Talebi SM, Azimi HR, Jamali-Sheini F. Experimental and Theoretical Study of Enhanced Photocatalytic Activity of Mg-Doped ZnO NPs and ZnO/rGO Nanocomposites. Chem Asian J 2018; 13:194-203. [DOI: 10.1002/asia.201701423] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/22/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Ramin Yousefi
- Department of Physics, Masjed-Soleiman Branch; Islamic Azad University (I.A.U); Masjed-Soleiman Iran
| | - Javad Beheshtian
- Department of Chemistry; Shahid Rajaee Teacher Training University; Lavizan Tehran Iran
| | - Seyedeh Mozhgan Seyed-Talebi
- Department of Chemistry; Shahid Rajaee Teacher Training University; Lavizan Tehran Iran
- Department of Physics; Shahid Chamran University of Ahvaz; Ahvaz Iran
| | - H. R. Azimi
- Department of Physics, Masjed-Soleiman Branch; Islamic Azad University (I.A.U); Masjed-Soleiman Iran
| | - Farid Jamali-Sheini
- Advanced Surface Engineering and Nano Materials Research Center, Department of Physics, Ahvaz Branch; Islamic Azad University; Ahvaz Iran
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42
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Trung Tran SB, Choi HS, Oh SY, Moon SY, Park JY. Iron-doped ZnO as a support for Pt-based catalysts to improve activity and stability: enhancement of metal–support interaction by the doping effect. RSC Adv 2018; 8:21528-21533. [PMID: 35539927 PMCID: PMC9080930 DOI: 10.1039/c8ra03664k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023] Open
Abstract
In heterogeneous catalysis, the role of the interface between a metal and a metal oxide in deciding catalytic performance has remained a long-standing question. Out of many molecular-scale factors that affect the properties of metal–oxide interfaces, doping or impurities in the oxides can result in excess charge carriers or oxygen vacancies on the oxides, which lead to a change in catalytic activity. For a model system with a tunable dopant, we employed Pt nanoparticles with Fe doping. We synthesized a series of Fe-doped ZnO with different Fe loadings (i.e., 0, 1, and 4%) using the co-precipitation method, and then deposited Pt nanoparticles onto these supports. The Pt-based catalysts were employed to investigate the effect of the dopant to promote the catalytic performance for the CO oxidation reaction. The 4% Fe loading sample showed the highest catalytic activity among the catalysts, with a turnover frequency of 5.37 s−1 at 126 °C. The dopant was found to enhance the interaction between the Pt nanoparticles and the catalyst support, including the prevention of metal sintering, which resulted in an improvement of catalytic activity. We deposited Pt nanoparticles on a series of Fe-doped ZnO with different Fe loadings to study the effect of dopant on the catalytic performance for the CO oxidation reaction.![]()
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Affiliation(s)
- Si Bui Trung Tran
- Centre for Nanomaterials and Chemical Reactions
- Institute of Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
| | - Han Seul Choi
- Centre for Nanomaterials and Chemical Reactions
- Institute of Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
- Graduate School of EEWS and Department of Chemistry
| | - Sun Young Oh
- Centre for Nanomaterials and Chemical Reactions
- Institute of Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
- Graduate School of EEWS and Department of Chemistry
| | - Song Yi Moon
- Centre for Nanomaterials and Chemical Reactions
- Institute of Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
- Graduate School of EEWS and Department of Chemistry
| | - Jeong Young Park
- Centre for Nanomaterials and Chemical Reactions
- Institute of Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
- Graduate School of EEWS and Department of Chemistry
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43
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Wang Z, Xu Z, Peng S, Zhou Z, Pan P, Lin L, Qin Y, Guo G, Yao Y. New Catalysts for Coal to Ethylene Glycol. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600746] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhiqiao Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Zhongning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Siyan Peng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Zhangfeng Zhou
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Pengbin Pan
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Lin Lin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Yeyan Qin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Guocong Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Yuangen Yao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
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44
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Chen Z, Liang Y, Jia DS, Cui ZM, Song WG. Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62797-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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45
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Kong X, Chen Z, Wu Y, Wang R, Chen J, Ding L. Synthesis of Cu–Mg/ZnO catalysts and catalysis in dimethyl oxalate hydrogenation to ethylene glycol: enhanced catalytic behavior in the presence of a Mg2+ dopant. RSC Adv 2017. [DOI: 10.1039/c7ra09435c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Mg2+ doped nanoscale Cu–Mg/ZnO catalysts prepared by the co-precipitation method have been systematically characterized focusing on the amount of Mg2+ ions incorporated.
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Affiliation(s)
- Xiangpeng Kong
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- PR China
- State Key Laboratory of Coal Conversion
| | - Zheng Chen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Yuehuan Wu
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- PR China
| | - Ruihong Wang
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- PR China
| | - Jiangang Chen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Lifeng Ding
- Department of Chemistry and Chemical Engineering
- Taiyuan Institute of Technology
- Taiyuan 030008
- PR China
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46
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In situ DRIFTS study of CO coupling to dimethyl oxalate over structured Al-fiber@ns-AlOOH@Pd catalyst. J Catal 2016. [DOI: 10.1016/j.jcat.2016.09.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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48
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Wang J, Gu H. Novel Metal Nanomaterials and Their Catalytic Applications. Molecules 2015; 20:17070-92. [PMID: 26393550 PMCID: PMC6332027 DOI: 10.3390/molecules200917070] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 11/16/2022] Open
Abstract
In the rapidly developing areas of nanotechnology, nano-scale materials as heterogeneous catalysts in the synthesis of organic molecules have gotten more and more attention. In this review, we will summarize the synthesis of several new types of noble metal nanostructures (FePt@Cu nanowires, Pt@Fe₂O₃ nanowires and bimetallic Pt@Ir nanocomplexes; Pt-Au heterostructures, Au-Pt bimetallic nanocomplexes and Pt/Pd bimetallic nanodendrites; Au nanowires, CuO@Ag nanowires and a series of Pd nanocatalysts) and their new catalytic applications in our group, to establish heterogeneous catalytic system in "green" environments. Further study shows that these materials have a higher catalytic activity and selectivity than previously reported nanocrystal catalysts in organic reactions, or show a superior electro-catalytic activity for the oxidation of methanol. The whole process might have a great impact to resolve the energy crisis and the environmental crisis that were caused by traditional chemical engineering. Furthermore, we hope that this article will provide a reference point for the noble metal nanomaterials' development that leads to new opportunities in nanocatalysis.
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Affiliation(s)
- Jiaqing Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
| | - Hongwei Gu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
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