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Tang M, Li S, Chen S, Ou Y, Hiroaki M, Yuan W, Zhu B, Yang H, Gao Y, Zhang Z, Wang Y. Facet‐Dependent Oxidative Strong Metal‐Support Interactions of Palladium–TiO
2
Determined by In Situ Transmission Electron Microscopy. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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
| | - Songda Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Shiyuan Chen
- 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
| | | | - Wentao Yuan
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Beien Zhu
- Interdisciplinary Research Center, Zhangjiang Laboratory Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 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
| | - Yi Gao
- Interdisciplinary Research Center, Zhangjiang Laboratory Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 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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2
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Tang M, Li S, Chen S, Ou Y, Hiroaki M, Yuan W, Zhu B, Yang H, Gao Y, Zhang Z, Wang Y. Facet-Dependent Oxidative Strong Metal-Support Interactions of Palladium-TiO 2 Determined by In Situ Transmission Electron Microscopy. Angew Chem Int Ed Engl 2021; 60:22339-22344. [PMID: 34352928 DOI: 10.1002/anie.202106805] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 11/06/2022]
Abstract
The strong metal-support interaction (SMSI) is widely used in supported metal catalysts and extensive studies have been performed to understand it. Although considerable progress has been achieved, the surface structure of the support, as an important influencing factor, is usually ignored. We report a facet-dependent SMSI of Pd-TiO2 in oxygen by using in situ atmospheric pressure TEM. Pd NPs supported on TiO2 (101) and (100) surfaces showed encapsulation. In contrast, no such cover layer was observed in Pd-TiO2 (001) catalyst under the same conditions. This facet-dependent SMSI, which originates from the variable surface structure of the support, was demonstrated in a probe reaction of methane combustion catalyzed by Pd-TiO2 . Our discovery of the oxidative facet-dependent SMSI gives direct evidence of the important role of the support surface structure in SMSI and provides a new way to tune the interaction between metal NPs and the support as well as catalytic activity.
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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
| | - Songda Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shiyuan Chen
- 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
| | | | - Wentao Yuan
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Beien Zhu
- Interdisciplinary Research Center, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese, Academy of Sciences, Shanghai, 201210, 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
| | - Yi Gao
- Interdisciplinary Research Center, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese, Academy of Sciences, Shanghai, 201210, 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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3
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Zhang Y, Liu JX, Qian K, Jia A, Li D, Shi L, Hu J, Zhu J, Huang W. Structure Sensitivity of Au-TiO 2 Strong Metal-Support Interactions. Angew Chem Int Ed Engl 2021; 60:12074-12081. [PMID: 33709509 DOI: 10.1002/anie.202101928] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/07/2021] [Indexed: 11/07/2022]
Abstract
Strong metal-support interactions (SMSI) is an important concept in heterogeneous catalysis. Herein, we demonstrate that the Au-TiO2 SMSI of Au/TiO2 catalysts sensitively depends on both Au nanoparticle (NP) sizes and TiO2 facets. Au NPs of ca. 5 nm are more facile undergo Au-TiO2 SMSI than those of ca. 2 nm, while TiO2 {001} and {100} facets are more facile than TiO2 {101} facets. The resulting capsulating TiO2-x overlayers on Au NPs exhibit an average oxidation state between +3 and +4 and a Au-to-TiO2-x charge transfer, which, combined with calculations, determines the Ti:O ratio as ca. 6:11. Both TiO2-x overlayers and TiO2-x -Au interface exhibit easier lattice oxygen activation and higher intrinsic activity in catalyzing low-temperature CO oxidation than the starting Au-TiO2 interface. These results advance fundamental understanding of SMSI and demonstrate engineering of metal NP size and oxide facet as an effective strategy to tune the SMSI for efficient catalysis.
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Affiliation(s)
- Yunshang Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jin-Xun Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Aiping Jia
- Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Dan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Lei Shi
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jun Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian, 116023, China
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4
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5
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Chai Z. Light-Driven Alcohol Splitting by Heterogeneous Photocatalysis: Recent Advances, Mechanism and Prospects. Chem Asian J 2021; 16:460-473. [PMID: 33448692 PMCID: PMC7986840 DOI: 10.1002/asia.202001312] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/13/2021] [Indexed: 11/19/2022]
Abstract
Splitting of alcohols into hydrogen and corresponding carbonyl compounds, also called acceptorless alcohol dehydrogenation, is of great significance for both synthetic chemistry and hydrogen production. Light-Driven Alcohol Splitting (LDAS) by heterogeneous photocatalysis is a promising route to achieve such transformations, and it possesses advantages including high selectivity of the carbonyl compounds, extremely mild reaction conditions (room temperature and irradiation of visible light) and easy separation of the photocatalysts from the reaction mixtures. Because a variety of alcohols can be derived from biomass, LDAS can also be regarded as one of the most sustainable approaches for hydrogen production. In this Review, recent advances in the LDAS catalyzed by the heterogeneous photocatalysts are summarized, focusing on the mechanistic insights for the LDAS and aspects that influence the performance of the photocatalysts from viewpoints of metallic co-catalysts, semiconductors, and metal/semiconductor interfaces. In addition, challenges and prospects have been discussed in order to present a complete picture of this field.
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Affiliation(s)
- Zhigang Chai
- Department of Chemistry – Ångström LaboratoryUppsala University75121UppsalaSweden
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6
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Zhao D, Su T, Wang Y, Varma RS, Len C. Recent advances in catalytic oxidation of 5-hydroxymethylfurfural. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111133] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Qian K, Duan H, Li Y, Huang W. Electronic Oxide-Metal Strong Interaction (EOMSI). Chemistry 2020; 26:13538-13542. [PMID: 32427388 DOI: 10.1002/chem.202001003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/30/2020] [Indexed: 11/09/2022]
Abstract
Strong metal-support interaction of supported metal catalysts is an important concept to describe the effect of metal-support interactions on the structures and catalytic performances of supported metal particles. By using an example of CeOx adlayers supported on Ag nanocrystals, herein a concept of electronic oxide-metal strong interaction (EOMSI) is put forward; this interaction significantly affects the electronic structures of oxide adlayers through metal-to-oxide charge transfer. The EOMSI can stabilize oxide adlayers in a low oxidation state under ambient conditions, which individually are not stable; moreover, the oxide adlayers experiencing the EOMSI are resistant to high-temperature oxidation in air to a certain extent. Such an EOMSI concept helps to generalize the strong influence of oxide-metal interactions on the structures and catalytic performance of oxide/metal inverse catalysts, which have been attracting increasing attention.
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Affiliation(s)
- Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and, Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and, Department of Chemical Physics, University of Science and Technology of China Institution, Hefei, 230026, P. R. China
| | - Huimei Duan
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and, Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and, Department of Chemical Physics, University of Science and Technology of China Institution, Hefei, 230026, P. R. China
| | - Yangyang Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and, Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and, Department of Chemical Physics, University of Science and Technology of China Institution, Hefei, 230026, P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and, Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and, Department of Chemical Physics, University of Science and Technology of China Institution, Hefei, 230026, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian, 116023, P. R. China
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8
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Wang Y, Niu Y, Gao T, Liu S, Zhang B. Assessing the Effect of the Electron‐Beam Irradiation on Pd/Ga
2
O
3
Catalyst under Ambient Pressure. ChemCatChem 2020. [DOI: 10.1002/cctc.202000699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yongzhao Wang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China
- School of Materials Science and Engineering University of Science and Technology of China 72 Wenhua Road Shenyang 110016 P. R. China
| | - Yiming Niu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China
- School of Materials Science and Engineering University of Science and Technology of China 72 Wenhua Road Shenyang 110016 P. R. China
| | - Tongtong Gao
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China
| | - Siyang Liu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 P. R. China
- School of Materials Science and Engineering University of Science and Technology of China 72 Wenhua Road Shenyang 110016 P. R. China
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9
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Zhu B, Meng J, Yuan W, Zhang X, Yang H, Wang Y, Gao Y. Umformung von Metallnanopartikeln unter Reaktionsbedingungen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201906799] [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)
- Beien Zhu
- Shanghai Advanced Research InstituteChinese Academy of Sciences 201210 Shanghai China
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Jun Meng
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wentao Yuan
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Xun Zhang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Hangsheng Yang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yong Wang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yi Gao
- Shanghai Advanced Research InstituteChinese Academy of Sciences 201210 Shanghai China
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
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10
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Zhu B, Meng J, Yuan W, Zhang X, Yang H, Wang Y, Gao Y. Reshaping of Metal Nanoparticles Under Reaction Conditions. Angew Chem Int Ed Engl 2020; 59:2171-2180. [DOI: 10.1002/anie.201906799] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/10/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Beien Zhu
- Shanghai Advanced Research InstituteChinese Academy of Sciences 201210 Shanghai China
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Jun Meng
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wentao Yuan
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Xun Zhang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Hangsheng Yang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yong Wang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yi Gao
- Shanghai Advanced Research InstituteChinese Academy of Sciences 201210 Shanghai China
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
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11
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Ren M, Qian K, Huang W. Electronic Metal-Support Interaction-Modified Structures and Catalytic Activity of CeO x Overlayers in CeO x /Ag Inverse Catalysts. Chemistry 2019; 25:15978-15982. [PMID: 31591759 DOI: 10.1002/chem.201904134] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/06/2019] [Indexed: 01/24/2023]
Abstract
Electronic metal-support interactions (EMSIs) of oxide-supported metal catalysts strongly modifies the electronic structures of the supported metal nanoparticles. The strong influence of EMSIs on the electronic structures of oxide overlayers on metal nanoparticles employing cerium oxides/Ag inverse catalysts is reported herein. Ce2 O3 overlayers were observed to exclusively form on Ag nanocrystals at low cerium loadings and be resistant to oxidation treatments up to 250 °C, whereas CeO2 overlayers gradually developed as the cerium loading increased. Ag cubes enclosed by {001} facets with a smaller work function exert a stronger EMSI effect on the CeOx overlayers than Ag cubes enclosed by {111} facets. Only the CeO2 overlayers with a fully developed bulk CeO2 electronic structure significantly promote the catalytic activity of Ag nanocrystals in CO oxidation, whereas cerium oxide overlayers with other electronic structures do not. These results successfully extend the concept of EMSIs from oxide-supported metal catalysts to metal-supported oxide catalysts.
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Affiliation(s)
- Muqing Ren
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion, and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion, and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion, and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
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12
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Wu G, Zhao G, Sun J, Cao X, He Y, Feng J, Li D. The effect of oxygen vacancies in ZnO at an Au/ZnO interface on its catalytic selective oxidation of glycerol. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Niu Y, Liu X, Wang Y, Zhou S, Lv Z, Zhang L, Shi W, Li Y, Zhang W, Su DS, Zhang B. Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdH
x. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812292] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yiming Niu
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
- School of Materials Science and EngineeringUniversity of Science and Technology of China Shenyang 110016 China
| | - Xi Liu
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of Sciences Taiyuan 030001 China
- SynCat@BeijingSynfuels China Technology Co., Ltd. Beijing 101407 China
| | - Yongzhao Wang
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
- School of Materials Science and EngineeringUniversity of Science and Technology of China Shenyang 110016 China
| | - Song Zhou
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of Sciences Taiyuan 030001 China
- SynCat@BeijingSynfuels China Technology Co., Ltd. Beijing 101407 China
- School of Chemistry and Chemical EngineeringUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Zhengang Lv
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of Sciences Taiyuan 030001 China
- SynCat@BeijingSynfuels China Technology Co., Ltd. Beijing 101407 China
| | - Liyun Zhang
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
| | - Wen Shi
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
- School of Materials Science and EngineeringUniversity of Science and Technology of China Shenyang 110016 China
| | - Yongwang Li
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of Sciences Taiyuan 030001 China
- SynCat@BeijingSynfuels China Technology Co., Ltd. Beijing 101407 China
| | - Wei Zhang
- School of Materials Science & EngineeringElectron Microscopy CenterKey Laboratory of Automobile Materials MOEJilin University Changchun 130012 China
| | - Dang Sheng Su
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of Sciences Shenyang 110016 China
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14
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Niu Y, Liu X, Wang Y, Zhou S, Lv Z, Zhang L, Shi W, Li Y, Zhang W, Su DS, Zhang B. Visualizing Formation of Intermetallic PdZn in a Palladium/Zinc Oxide Catalyst: Interfacial Fertilization by PdH x. Angew Chem Int Ed Engl 2019; 58:4232-4237. [PMID: 30650222 DOI: 10.1002/anie.201812292] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/05/2018] [Indexed: 01/01/2023]
Abstract
Controllable synthesis of well-defined supported intermetallic catalysts is desirable because of their unique properties in physical chemistry. To accurately pinpoint the evolution of such materials at an atomic-scale, especially clarification of the initial state under a particular chemical environment, will facilitate rational design and optimal synthesis of such catalysts. The dynamic formation of a ZnO-supported PdZn catalyst is presented, whereby detailed analyses of in situ transmission electron microscopy, electron energy-loss spectroscopy, and in situ X-ray diffraction are combined to form a nanoscale understanding of PdZn phase transitions under realistic catalytic conditions. Remarkably, introduction of atoms (H and Zn in sequence) into the Pd matrix was initially observed. The resultant PdHx is an intermediate phase in the intermetallic formation process. The evolution of PdHx in the PdZn catalyst initializes at the PdHx /ZnO interfaces, and proceeds along the PdHx ⟨111⟩ direction.
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Affiliation(s)
- Yiming Niu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Xi Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.,SynCat@Beijing, Synfuels China Technology Co., Ltd., Beijing, 101407, China
| | - Yongzhao Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Song Zhou
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.,SynCat@Beijing, Synfuels China Technology Co., Ltd., Beijing, 101407, China.,School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhengang Lv
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.,SynCat@Beijing, Synfuels China Technology Co., Ltd., Beijing, 101407, China
| | - Liyun Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Wen Shi
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Yongwang Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.,SynCat@Beijing, Synfuels China Technology Co., Ltd., Beijing, 101407, China
| | - Wei Zhang
- School of Materials Science & Engineering, Electron Microscopy Center, Key Laboratory of Automobile Materials MOE, Jilin University, Changchun, 130012, China
| | - Dang Sheng Su
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
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15
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Yuan W, Zhang D, Ou Y, Fang K, Zhu B, Yang H, Hansen TW, Wagner JB, Zhang Z, Gao Y, Wang Y. Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO
2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wentao Yuan
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Dawei Zhang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Yang Ou
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Ke Fang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Beien Zhu
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Hangsheng Yang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Thomas W. Hansen
- Center for Electron NanoscopyTechnical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Jakob B. Wagner
- Center for Electron NanoscopyTechnical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Ze Zhang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
| | - Yi Gao
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and TechnologyShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201800 China
| | - Yong Wang
- State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang University Hangzhou 310027 China
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16
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Yuan W, Zhang D, Ou Y, Fang K, Zhu B, Yang H, Hansen TW, Wagner JB, Zhang Z, Gao Y, Wang Y. Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO 2. Angew Chem Int Ed Engl 2018; 57:16827-16831. [PMID: 30397982 DOI: 10.1002/anie.201811933] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Indexed: 11/09/2022]
Abstract
Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal-support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by in situ TEM. The full in situ sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet-dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering-resistant nanocatalysts.
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Affiliation(s)
- Wentao Yuan
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Dawei Zhang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yang Ou
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ke Fang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Beien Zhu
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Hangsheng Yang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Thomas W Hansen
- Center for Electron Nanoscopy, Technical University of Denmark, 2800 Kgs., Lyngby, Denmark
| | - Jakob B Wagner
- Center for Electron Nanoscopy, Technical University of Denmark, 2800 Kgs., Lyngby, Denmark
| | - Ze Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yi Gao
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yong Wang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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17
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Mammen N, Narasimhan S. Inducing wetting morphologies and increased reactivities of small Au clusters on doped oxide supports. J Chem Phys 2018; 149:174701. [PMID: 30408976 DOI: 10.1063/1.5053968] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Au nanoparticles are promising catalysts for industrially important reactions. Their catalytic activity is known to depend on their charge state and morphology. Using density functional theory calculations, we have studied how the induced charge and dimensionality of small Au clusters can be tuned by doping the oxide support that they are deposited on. We have investigated Au n clusters of sizes n = 1, 2, 3, and 20 on Al-doped MgO and Mo-doped CaO. We show that substitutionally doping the oxide support with an electron donor changes the cluster morphology from an upright and/or three-dimensional geometry to a flat geometry. This structural wetting transition results in an increase in the negative charge induced on the cluster and a consequent lowering in the dissociation barrier for the O2 atoms adsorbed on the cluster. We find that the nature of Mo and Al dopants differs: only for the former is it true that the charge state of the dopant atoms depends on the presence or absence of Au nanoparticles and their size.
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Affiliation(s)
- Nisha Mammen
- Theoretical Sciences Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 India
| | - Shobhana Narasimhan
- Theoretical Sciences Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 India
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18
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Wei X, Shao B, Zhou Y, Li Y, Jin C, Liu J, Shen W. Geometrical Structure of the Gold–Iron(III) Oxide Interfacial Perimeter for CO Oxidation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805975] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xuejiao Wei
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Bin Shao
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yan Zhou
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yong Li
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Chuanchuan Jin
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Jingyue Liu
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- Department of Physics Arizona State University Tempe Arizona 85287 USA
| | - Wenjie Shen
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
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19
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Wei X, Shao B, Zhou Y, Li Y, Jin C, Liu J, Shen W. Geometrical Structure of the Gold–Iron(III) Oxide Interfacial Perimeter for CO Oxidation. Angew Chem Int Ed Engl 2018; 57:11289-11293. [DOI: 10.1002/anie.201805975] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/19/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Xuejiao Wei
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Bin Shao
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yan Zhou
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yong Li
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Chuanchuan Jin
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Jingyue Liu
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- Department of Physics Arizona State University Tempe Arizona 85287 USA
| | - Wenjie Shen
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
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20
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Mohrhusen L, Osmić M. Sterical ligand stabilization of nanocrystals versus electrostatic shielding by ionic compounds: a principle model study with TEM and XPS. RSC Adv 2017. [DOI: 10.1039/c6ra27454d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Electrostaticversussterical ligand stabilization: competitive stabilization mechanism play a key role in the control of nanomaterial properties.
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Affiliation(s)
- Lars Mohrhusen
- Carl von Ossietzky University of Oldenburg
- Institute of Chemistry
- Physical Chemistry 1
- D-26129 Oldenburg
- Germany
| | - Milena Osmić
- Carl von Ossietzky University of Oldenburg
- Institute of Chemistry
- Physical Chemistry 1
- D-26129 Oldenburg
- Germany
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21
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Koh AL, Sinclair R. Assessing and ameliorating the influence of the electron beam on carbon nanotube oxidation in environmental transmission electron microscopy. Ultramicroscopy 2016; 176:132-138. [PMID: 27979618 DOI: 10.1016/j.ultramic.2016.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/23/2016] [Accepted: 12/06/2016] [Indexed: 12/25/2022]
Abstract
In this work, we examine how the imaging electron beam can induce damage in carbon nanotubes (CNTs) at varying oxygen gas pressures and electron dose rates using environmental transmission electron microscopy (ETEM). Our studies show that there is a threshold cumulative electron dose which brings about damage in CNTs in oxygen - through removal of their graphitic walls - which is dependent on O2 pressure, with a 4-5 fold decrease in total electron dose per decade increase at a lower pressure range (10-6 to 10-5mbar) and approximately 1.3 -fold decrease per decade increase at a higher pressure range (10-3 to 100mbar). However, at a given pressure, damage in CNTs was found to occur even at the lowest dose rate utilized, suggesting the absence of a lower limit for the latter parameter. This study provides guidelines on the cumulative dose required to damage nanotubes in the 10-7mbar to 100mbar pressure regimes, and discusses the role of electron dose rate and total electron dose on beam-induced CNT degradation experiments.
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Affiliation(s)
- Ai Leen Koh
- Stanford Nano Shared Facilities, Stanford University, Stanford, CA 94305, USA.
| | - Robert Sinclair
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
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22
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Koh AL, Gidcumb E, Zhou O, Sinclair R. Oxidation of Carbon Nanotubes in an Ionizing Environment. NANO LETTERS 2016; 16:856-63. [PMID: 26726919 PMCID: PMC4859757 DOI: 10.1021/acs.nanolett.5b03035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this work, we present systematic studies on how an illuminating electron beam which ionizes molecular gas species can influence the mechanism of carbon nanotube oxidation in an environmental transmission electron microscope (ETEM). We found that preferential attack of the nanotube tips is much more prevalent than for oxidation in a molecular gas environment. We establish the cumulative electron doses required to damage carbon nanotubes from 80 keV electron beam irradiation in gas versus in high vacuum. Our results provide guidelines for the electron doses required to study carbon nanotubes within or without a gas environment, to determine or ameliorate the influence of the imaging electron beam. This work has important implications for in situ studies as well as for the oxidation of carbon nanotubes in an ionizing environment such as that occurring during field emission.
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Affiliation(s)
- Ai Leen Koh
- Stanford Nano Shared Facilities, Stanford University, Stanford, California 94305, USA
| | - Emily Gidcumb
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Otto Zhou
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Robert Sinclair
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
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23
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Li N, Zhao P, Astruc D. Anisotrope Gold-Nanopartikel: Synthese, Eigenschaften, Anwendungen und Toxizität. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201300441] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Li N, Zhao P, Astruc D. Anisotropic Gold Nanoparticles: Synthesis, Properties, Applications, and Toxicity. Angew Chem Int Ed Engl 2014; 53:1756-89. [DOI: 10.1002/anie.201300441] [Citation(s) in RCA: 691] [Impact Index Per Article: 69.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/26/2013] [Indexed: 12/26/2022]
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