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Motin MA, Sadiq M, Kim CM. Reaction of CH
3
CH
2
OH and H on a ZnO Single Crystal Surface. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Md. Abdul Motin
- Department of ChemistryKyungpook National University Daegu 41566 South Korea
| | - Muhammad Sadiq
- Department of ChemistryUniversity of Malakand Chakdara 18800 Pakistan
| | - Chang Min Kim
- Department of ChemistryKyungpook National University Daegu 41566 South Korea
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2
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Effect of the Composition of Ethanol–Water Mixtures on the Properties of Oxide (Zn-Zr-Si) and Zeolitic (Ta/SiBEA) Catalysts in the Production of 1,3-Butadiene. THEOR EXP CHEM+ 2019. [DOI: 10.1007/s11237-019-09618-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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4
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Srinivasan PD, Patil BS, Zhu H, Bravo-Suárez JJ. Application of modulation excitation-phase sensitive detection-DRIFTS for in situ/operando characterization of heterogeneous catalysts. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00011a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new more general method and guidelines for the implementation of modulation excitation-phase sensitive detection-diffuse reflectance Fourier transform spectroscopy (ME-PSD-DRIFTS).
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Affiliation(s)
- Priya D. Srinivasan
- Department of Chemical & Petroleum Engineering
- The University of Kansas
- Lawrence
- USA
- Center for Environmentally Beneficial Catalysis
| | - Bhagyesha S. Patil
- Department of Chemical & Petroleum Engineering
- The University of Kansas
- Lawrence
- USA
- Center for Environmentally Beneficial Catalysis
| | - Hongda Zhu
- Center for Environmentally Beneficial Catalysis
- The University of Kansas
- Lawrence
- USA
| | - Juan J. Bravo-Suárez
- Department of Chemical & Petroleum Engineering
- The University of Kansas
- Lawrence
- USA
- Center for Environmentally Beneficial Catalysis
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5
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Larina OV, Kyriienko PI, Balakin DY, Vorokhta M, Khalakhan I, Nychiporuk YM, Matolín V, Soloviev SO, Orlyk SM. Effect of ZnO on acid–base properties and catalytic performances of ZnO/ZrO2–SiO2 catalysts in 1,3-butadiene production from ethanol–water mixture. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00991d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of ZnO and the preparation method of ZnO/ZrO2–SiO2 catalysts on their acid–base properties and catalytic performances in the conversion of diluted ethanol mixtures into 1,3-butadiene (BD) is presented.
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Affiliation(s)
- Olga V. Larina
- L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine
- 03028 Kyiv
- Ukraine
| | - Pavlo I. Kyriienko
- L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine
- 03028 Kyiv
- Ukraine
| | - Dmytro Yu. Balakin
- Institute of Physics of the National Academy of Sciences of the Ukraine
- 03028 Kyiv
- Ukraine
| | - Mykhailo Vorokhta
- Charles University
- Faculty of Mathematics and Physics
- 18000 Prague
- Czech Republic
| | - Ivan Khalakhan
- Charles University
- Faculty of Mathematics and Physics
- 18000 Prague
- Czech Republic
| | - Yurii M. Nychiporuk
- Institute of Surface Chemistry of the National Academy of Sciences of the Ukraine
- 03164 Kyiv
- Ukraine
| | - Vladimír Matolín
- Charles University
- Faculty of Mathematics and Physics
- 18000 Prague
- Czech Republic
| | - Sergiy O. Soloviev
- L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine
- 03028 Kyiv
- Ukraine
| | - Svitlana M. Orlyk
- L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine
- 03028 Kyiv
- Ukraine
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6
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Zhang X, Wang L, Wei Z, Zhang G, Zeng W, Fu J, Liu Q, Duan H. Ultra-Stable Asymmetric Supercapacitors Constructed by In-Situ Electro-Oxidation Activated Ni@CNTs Composites. ChemElectroChem 2018. [DOI: 10.1002/celc.201800956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaojia Zhang
- School of Physics and Electronics State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body; Hunan University; Changsha 410082 P. R. China
| | - Lei Wang
- School of Physics and Electronics State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body; Hunan University; Changsha 410082 P. R. China
| | - Zengxi Wei
- School of Physics and Electronics State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body; Hunan University; Changsha 410082 P. R. China
| | - Guanhua Zhang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle Engineering; Hunan University; Changsha 410082 P. R. China
| | - Wei Zeng
- Collaborative Innovation Center for Optoelectronic Science & Technology Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 P. R. China
| | - Jiecai Fu
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education School of Physical Science and Technology; Lanzhou University; Lanzhou 730000 P. R. China
| | - Quanhui Liu
- School of Physics and Electronics State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body; Hunan University; Changsha 410082 P. R. China
| | - Huigao Duan
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle Engineering; Hunan University; Changsha 410082 P. R. China
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7
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Konh M, He C, Li Z, Bai S, Galoppini E, Gundlach L, Teplyakov AV. Comparison of ZnO surface modification with gas-phase propiolic acid at high and medium vacuum conditions. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A, VACUUM, SURFACES, AND FILMS : AN OFFICIAL JOURNAL OF THE AMERICAN VACUUM SOCIETY 2018; 36:041404. [PMID: 29983480 PMCID: PMC6026025 DOI: 10.1116/1.5031945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 06/08/2023]
Abstract
Recent advances in preservation of the morphology of ZnO nanostructures during dye sensitization required the use of a two-step preparation procedure. The first step was the key for preserving ZnO materials morphology. It required exposing clean ZnO nanostructures to a gas-phase prop-2-ynoic acid (propiolic acid) in vacuum. This step resulted in the formation of a robust and stable surface-bound carboxylate with ethynyl groups available for further modification, for example, with click chemistry. This paper utilizes spectroscopic and microscopic investigations to answer several questions about this modification and to determine if the process can be performed under medium vacuum conditions instead of high vacuum procedures reported earlier. Comparing the results of the preparation process at medium vacuum of 0.5 Torr base pressure with the previously reported investigations of the same process in high vacuum of 10-5 Torr suggests that both processes lead to the formation of the same surface species, confirming that the proposed modification scheme can be widely applicable for ZnO sensitization procedures and does not require the use of high vacuum. Additional analysis comparing the computationally predicted surface structures with the results of spectroscopic investigations yields the more complete description of the surface species resulting from this approach.
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Affiliation(s)
- Mahsa Konh
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Chuan He
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Zhengxin Li
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Shi Bai
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Elena Galoppini
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102
| | - Lars Gundlach
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716
| | - Andrew V Teplyakov
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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8
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Zhao J, Gao F, Pujari SP, Zuilhof H, Teplyakov AV. Universal Calibration of Computationally Predicted N 1s Binding Energies for Interpretation of XPS Experimental Measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10792-10799. [PMID: 28921989 PMCID: PMC5702496 DOI: 10.1021/acs.langmuir.7b02301] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Computationally predicted N 1s core level energies are commonly used to interpret the experimental measurements obtained with X-ray photoelectron spectroscopy. This work compares the application of Koopmans' theorem to core electrons using the B3LYP functional with two commonly used basis sets, analyzes the factors relevant to the comparison of the computational with experimental data, and presents several correlations that allow an accurate prediction of the N 1s binding energy. The first correlation is obtained with a series of known nitrogen-containing functional groups on well-characterized organic monolayers. This approach can then be reliably extended to a number of nitrogen-containing chemical systems on silicon surfaces in which the nature of the chemical environment of nitrogen atoms had only been proposed based on a number of analytical techniques. In most of those cases, the XPS analysis is consistent with the proposed structures, but is not always sufficient for conclusive assignments. Third, it was attempted to also include N-containing systems on metals. Despite the admittedly oversimplified approach taken in this case (the metal surface is approximated by a single atom), the observed correlations are still experimentally useful, although in this case significant outliers are found. Finally, previously published correlations between experimental and theoretical C 1s data were reexamined, yielding a set of correlations that allow experimentalists to predict C 1s and N 1s XPS spectra with high accuracy.
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Affiliation(s)
- Jing Zhao
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Fei Gao
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Sidharam P. Pujari
- Laboratory of Organic Chemistry, Stippeneng 4, Wageningen University and Research, 6708 WE Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Stippeneng 4, Wageningen University and Research, 6708 WE Wageningen, The Netherlands
- School of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, Tianjin, 300072, P.R. China
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah 23218, Saudi Arabia
| | - Andrew V. Teplyakov
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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9
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Gao F, Aminane S, Bai S, Teplyakov AV. Chemical Protection of Material Morphology: Robust and Gentle Gas-Phase Surface Functionalization of ZnO with Propiolic Acid. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2017; 29:4063-4071. [PMID: 29151674 PMCID: PMC5690571 DOI: 10.1021/acs.chemmater.7b00747] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chemical functionalization of ZnO surface with an alkyne functional group was successfully achieved by exposing ZnO nanopowder to gas-phase propiolic acid in vacuum, which left the alkyne group available for subsequent chemical modification via the azide-alkyne cycloaddition "click" reaction with benzyl azide. The highly selective formation of a bidentate carboxylate linkage and the reaction of benzyl azide were confirmed by solid-state nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Most importantly, scanning electron microscopy revealed that the surface morphology was perfectly preserved by this gas-phase modification, as opposed to the alternative protocols based on liquid phase processing. This simple and precise design can serve as a universal method for the modular functionalization of zinc oxide surface following the initial surface preparation and be further applied to thin films, nanostructures, and powders, where preserving surface morphology during chemical modification is especially important.
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Affiliation(s)
- Fei Gao
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Soraya Aminane
- Université Pierre et Marie Curie, Paris Cedex 05 75005, France
| | - Shi Bai
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Andrew V. Teplyakov
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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10
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Cornejo-Romero J, Solis-Garcia A, Vega-Diaz SM, Fierro-Gonzalez JC. Reverse hydrogen spillover during ethanol dehydrogenation on TiO2-supported gold catalysts. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.02.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Kung H, Duan Y, Williams MG, Teplyakov AV. Transmetalation Process as a Route for Preparation of Zinc-Oxide-Supported Copper Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7029-7037. [PMID: 27351220 PMCID: PMC5094711 DOI: 10.1021/acs.langmuir.6b00061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Supported nanoparticulate materials have a variety of uses, from energy storage to catalysis. In preparing such materials, precision control can often be achieved by applying chemical deposition methods. However, ligand removal following the initial deposition presents a substantial challenge because of potential surface contamination. Traditional approaches normally include multistep processing and require a substantial thermal budget. Using transmetalation chemistry, it is possible to circumvent both disadvantages and prepare chemically reactive copper nanoparticles supported on a commercially available ZnO powder material by metalorganic vapor copper deposition followed by very mild annealing to 350 K. The self-limiting copper deposition reaction is used to demonstrate the utility of this approach for hexafluoroacetylacetonate-copper-vinyltrimethylsilane, Cu(hfac)VTMS, reacting with ZnO. The low-temperature transmetalation is confirmed by a combination of spectroscopic studies. Model density functional theory calculations are consistent with a thermodynamic driving force for the process.
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12
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Copéret C, Estes DP, Larmier K, Searles K. Isolated Surface Hydrides: Formation, Structure, and Reactivity. Chem Rev 2016; 116:8463-505. [DOI: 10.1021/acs.chemrev.6b00082] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Christophe Copéret
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Deven P. Estes
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Kim Larmier
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
| | - Keith Searles
- Department of Chemistry and
Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, CH-8093 Zürich, Switzerland
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13
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Zhou Y, Li Y, Shen W. Shape Engineering of Oxide Nanoparticles for Heterogeneous Catalysis. Chem Asian J 2016; 11:1470-88. [DOI: 10.1002/asia.201600115] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Indexed: 11/10/2022]
Affiliation(s)
- 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
| | - Wenjie Shen
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
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14
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Kung H, Teplyakov A. Selectivity and Mechanism of Thermal Decomposition of β-diketones on ZnO Powder. J Catal 2015; 330:145-153. [PMID: 26309333 DOI: 10.1016/j.jcat.2015.07.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The thermal chemistry of β-diketones underlies a number of catalytic processes related both to the catalytic reactions yielding commodity chemicals and to the production of supported transition metal catalysts themselves. The mechanisms of decomposition during thermal transformation of three β-diketones, acetylacetone (acacH), 1,1,1-trifluoroacetylacetone (tfacH), and 1,1,1,5,5,5-hexafluoroacetylacetone (hfacH), were studied on ZnO powder surface using Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and Density functional theory (DFT) computational investigation. The initial O-H dissociation leads to the formation of corresponding β-diketonates in all the cases investigated. These diketonates are important surface intermediates that can be generated in a controlled manner in these experiments. The presence on the C-CF3 entity determines the preferred thermal decomposition pathways, as the C-C bond in this group starts to react with a surface of ZnO around 400 K, followed by immediate decomposition of the resulting CF3 group. Above 600 K, the presence of the CF3-substituent leads to the formation of ketene-like structures observed by vibrational spectroscopy. The reaction mechanisms examined with the help of DFT calculations are correlated with vibrational signatures of the species produced and with the F-containing species recorded by XPS.
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Affiliation(s)
- Hsuan Kung
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE 19716
| | - Andrew Teplyakov
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE 19716
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Kung H, Teplyakov A. In situ investigation of organic ligand displacement processes on ZnO powder surface. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:054007. [PMID: 25414158 DOI: 10.1088/0953-8984/27/5/054007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A variety of surface processes require removal or replacement of surface-bound chemical functional groups to achieve the properties required by a specific application. In the case of ZnO powder, a number of applications require manipulation of surface-bound species including ethoxy, acetoxy, acetylacetate, or 1,1,1,5,5,5-hexafluoroacetylacetate. The displacement of the surface species formed by these compounds on ZnO powder surfaces by a gas-phase reagent is described by a model that takes into account stability of surface species predicted by density functional theory and the strength of binding of the second layer on top of the first, provided by the ΔH of sublimation. This simple model is tested by infrared spectroscopy following the adsorption of one compound and its displacement by the other. A correlation between the enthalpic driving force and the percentage of the displaced species observed experimentally is found. This simple approach can be improved and generalized further to include other surface-bound species and other materials.
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Affiliation(s)
- Hsuan Kung
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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Gao J, Teplyakov AV. Thermal transformations of 2-chlorophenol on a surface of ZnO powder catalyst. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Holz MC, Tölle K, Muhler M. Gas-phase oxidation of ethanol over Au/TiO2 catalysts to probe metal–support interactions. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00493k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ethanol and oxygen were converted over titania and gold nanoparticles supported on titania to investigate the reactivity of the support, the influence of the metal, and the role of metal–support interactions.
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Affiliation(s)
| | - Katharina Tölle
- Laboratory of Industrial Chemistry
- Ruhr-University Bochum
- 44801 Bochum, Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry
- Ruhr-University Bochum
- 44801 Bochum, Germany
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