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Liu L, Shao G, Ma C, Nikiforov A, De Geyter N, Morent R. Plasma-catalysis for VOCs decomposition: A review on micro- and macroscopic modeling. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131100. [PMID: 36893595 DOI: 10.1016/j.jhazmat.2023.131100] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Plasma-catalysis has been recognized as a promising method to decompose hazardous volatile organic compounds (VOCs) since many years ago. To understand the fundamental mechanisms of VOCs decomposition by plasma-catalysis systems, both experimental and modeling studies have been extensively carried out. However, literature on summarized modeling methodologies is still scarce. In this short review, we therefore present a comprehensive overview of modeling methodologies ranging from microscopic to macroscopic modeling in plasma-catalysis for VOCs decomposition. The modeling methods of VOCs decomposition by plasma and plasma-catalysis are classified and summarized. The roles of plasma and plasma-catalyst interactions in VOCs decomposition are also critically examined. Taking the current advances in understanding the decomposition mechanisms of VOCs into account, we finally provide our perspectives for future research directions. This short review aims to stimulate the further development of plasma-catalysis for VOCs decomposition in both fundamental studies and practical applications with advanced modeling methods.
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Affiliation(s)
- Lu Liu
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Guangcai Shao
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chuanlong Ma
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Anton Nikiforov
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
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2
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Kim J, Singh SK, Liu Q, Leon CC, Ceyer ST. Formation of Graphene on Gold-Nickel Surface Alloys. J Am Chem Soc 2023; 145:6299-6309. [PMID: 36913359 DOI: 10.1021/jacs.2c13205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Nickel (Ni)-catalyzed growth of a single- or rotated-graphene layer is a well-established process above 800 K. In this report, a Au-catalyzed, low-temperature, and facile route at 500 K for graphene formation is described. The substantially lower temperature is enabled by the presence of a surface alloy of Au atoms embedded within Ni(111), which catalyzes the outward segregation of carbon atoms buried in the Ni bulk at temperatures as low as 400-450 K. The resulting surface-bound carbon in turn coalesces into graphene above 450-500 K. Control experiments on a Ni(111) surface show no evidence of carbon segregation or graphene formation at these temperatures. Graphene is identified by its out-of-plane optical phonon mode at 750 cm-1 and its longitudinal/transverse optical phonon modes at 1470 cm-1 while surface carbon is identified by its C-Ni stretch mode at 540 cm-1, as probed by high-resolution electron energy-loss spectroscopy. Dispersion measurements of the phonon modes confirm the presence of graphene. Graphene formation is observed to be maximum at 0.4 ML Au coverage. The results of these systematic molecular-level investigations open the door to graphene synthesis at the low temperatures required for integration with complementary metal-oxide-semiconductor processes.
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Affiliation(s)
- Jeongjin Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Santosh K Singh
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Qing Liu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher C Leon
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - S T Ceyer
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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3
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Automated exploitation of the big configuration space of large adsorbates on transition metals reveals chemistry feasibility. Nat Commun 2022; 13:2087. [PMID: 35474063 PMCID: PMC9043206 DOI: 10.1038/s41467-022-29705-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/28/2022] [Indexed: 11/08/2022] Open
Abstract
Mechanistic understanding of large molecule conversion and the discovery of suitable heterogeneous catalysts have been lagging due to the combinatorial inventory of intermediates and the inability of humans to enumerate all structures. Here, we introduce an automated framework to predict stable configurations on transition metal surfaces and demonstrate its validity for adsorbates with up to 6 carbon and oxygen atoms on 11 metals, enabling the exploration of ~108 potential configurations. It combines a graph enumeration platform, force field, multi-fidelity DFT calculations, and first-principles trained machine learning. Clusters in the data reveal groups of catalysts stabilizing different structures and expose selective catalysts for showcase transformations, such as the ethylene epoxidation on Ag and Cu and the lack of C-C scission chemistry on Au. Deviations from the commonly assumed atom valency rule of small adsorbates are also manifested. This library can be leveraged to identify catalysts for converting large molecules computationally. The discovery of heterogeneous catalysts for large molecule conversion has been lagging due to the combinatorial inventory of intermediates. Here, the author presents an automated framework to explore the chemical space of reaction intermediates.
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Zhou X, Vejayan H, Beck RD, Guo H, Jiang B. Infrared Activities of Adsorbed Species on Metal Surfaces: The Puzzle of Adsorbed Methyl (CH 3). J Phys Chem Lett 2021; 12:11164-11169. [PMID: 34757753 DOI: 10.1021/acs.jpclett.1c03342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Reflection-absorption infrared spectroscopy (RAIRS) is widely used to identify molecular adsorbates on metals during surface chemical reactions, but the interpretation of RAIRS data can be difficult with experiment alone. Here, we reveal from first-principles calculations the origin of the contrasting RAIRS spectra of methyl adsorbed on Pt(111) and Ni(111). We find that the dynamic dipole associated with the symmetric C-H stretch vibration of CH3 along surface normal is significant on Pt(111) but negligibly small on Ni(111), explaining the strong IR activity in the former and the absence of any RAIRS peaks in the latter. This difference is correlated to different charge transfer patterns between metals and the adsorbate, which are determined by the different preferred adsorption sites of methyl on the two surfaces. This work highlights the need of electronic structure calculations in interpreting RAIRS spectra of adsorbates on metal surfaces.
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Affiliation(s)
- Xueyao Zhou
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Harmina Vejayan
- Institute of Chemical Sciences and Chemical Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Rainer D Beck
- Institute of Chemical Sciences and Chemical Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Bin Jiang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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Weststrate CJ, Sharma D, Garcia Rodriguez D, Gleeson MA, Fredriksson HOA, Niemantsverdriet JW. Reactivity of C3Hx Adsorbates in Presence of Co-adsorbed CO and Hydrogen: Testing Fischer–Tropsch Chain Growth Mechanisms. Top Catal 2020. [DOI: 10.1007/s11244-020-01306-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mechanistic insight into carbon-carbon bond formation on cobalt under simulated Fischer-Tropsch synthesis conditions. Nat Commun 2020; 11:750. [PMID: 32029729 PMCID: PMC7005166 DOI: 10.1038/s41467-020-14613-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 01/13/2020] [Indexed: 12/04/2022] Open
Abstract
Facile C-C bond formation is essential to the formation of long hydrocarbon chains in Fischer-Tropsch synthesis. Various chain growth mechanisms have been proposed previously, but spectroscopic identification of surface intermediates involved in C-C bond formation is scarce. We here show that the high CO coverage typical of Fischer-Tropsch synthesis affects the reaction pathways of C2Hx adsorbates on a Co(0001) model catalyst and promote C-C bond formation. In-situ high resolution x-ray photoelectron spectroscopy shows that a high CO coverage promotes transformation of C2Hx adsorbates into the ethylidyne form, which subsequently dimerizes to 2-butyne. The observed reaction sequence provides a mechanistic explanation for CO-induced ethylene dimerization on supported cobalt catalysts. For Fischer-Tropsch synthesis we propose that C-C bond formation on the close-packed terraces of a cobalt nanoparticle occurs via methylidyne (CH) insertion into long chain alkylidyne intermediates, the latter being stabilized by the high surface coverage under reaction conditions. The mechanism by which C-C bonds form during Fischer-Tropsch synthesis remains debated while spectroscopic identification of reaction intermediates remains scarce. Here, the authors identify alkylidynes as reactive intermediates for C-C bond formation on cobalt terrace sites and moreover show that these intermediates are stabilized by the high surface coverage typical for Fischer-Tropsch synthesis.
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Weststrate C, Niemantsverdriet J. CO as a Promoting Spectator Species of CxHy Conversions Relevant for Fischer–Tropsch Chain Growth on Cobalt: Evidence from Temperature-Programmed Reaction and Reflection Absorption Infrared Spectroscopy. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02743] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C.J. Weststrate
- SynCat@DIFFER, Syngaschem BV, P.O. Box 6336, 5600 HH Eindhoven, The Netherlands
| | - J.W. Niemantsverdriet
- SynCat@DIFFER, Syngaschem BV, P.O. Box 6336, 5600 HH Eindhoven, The Netherlands
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1,
Huairou District, 101407 Beijing, China
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8
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Ren Y, Yuan K, Zhou X, Sun H, Wu K, Bernasek SL, Chen W, Xu GQ. Catalytic Intermediates of CO2
Hydrogenation on Cu(111) Probed by In Operando Near-Ambient Pressure Technique. Chemistry 2018; 24:16097-16103. [DOI: 10.1002/chem.201802931] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Yinjuan Ren
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Kaidi Yuan
- Department of Physics; National University of Singapore; 2 Science Drive 3 117542 Singapore Singapore
| | - Xiong Zhou
- BNLMS; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P. R. China
| | - Haicheng Sun
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Kai Wu
- BNLMS; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P. R. China
| | - Steven L. Bernasek
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- Science Division; Yale-NUS College; 16 College Ave. West 138529 Singapore Singapore
| | - Wei Chen
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- Department of Physics; National University of Singapore; 2 Science Drive 3 117542 Singapore Singapore
| | - Guo Qin Xu
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
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9
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Arya M, Mirzaei AA, Davarpanah AM, Barakati SM, Atashi H, Mohsenzadeh A, Bolton K. DFT studies of hydrocarbon combustion on metal surfaces. J Mol Model 2018; 24:47. [PMID: 29396776 PMCID: PMC5797216 DOI: 10.1007/s00894-018-3585-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 01/08/2018] [Indexed: 11/28/2022]
Abstract
Catalytic combustion of hydrocarbons is an important technology to produce energy. Compared to conventional flame combustion, the catalyst enables this process to operate at lower temperatures; hence, reducing the energy required for efficient combustion. The reaction and activation energies of direct combustion of hydrocarbons (CH → C + H) on a series of metal surfaces were investigated using density functional theory (DFT). The data obtained for the Ag, Au, Al, Cu, Rh, Pt, and Pd surfaces were used to investigate the validity of the Brønsted-Evans-Polanyi (BEP) and transition state scaling (TSS) relations for this reaction on these surfaces. These relations were found to be valid (R2 = 0.94 for the BEP correlation and R2 = 1.0 for the TSS correlation) and were therefore used to estimate the energetics of the combustion reaction on Ni, Co, and Fe surfaces. It was found that the estimated transition state and activation energies (ETS = -69.70 eV and Ea = 1.20 eV for Ni, ETS = -87.93 eV and Ea = 1.08 eV for Co and ETS = -92.45 eV and Ea = 0.83 eV for Fe) are in agreement with those obtained by DFT calculations (ETS = -69.98 eV and Ea = 1.23 eV for Ni, ETS = -87.88 eV and Ea = 1.08 eV for Co and ETS = -92.57 eV and Ea = 0.79 eV for Fe). Therefore, these relations can be used to predict energetics of this reaction on these surfaces without doing the time consuming transition state calculations. Also, the calculations show that the activation barrier for CH dissociation decreases in the order Ag ˃ Au ˃ Al ˃ Cu ˃ Pt ˃ Pd ˃ Ni > Co > Rh > Fe.
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Affiliation(s)
- Mina Arya
- Swedish Centre for Resource Recovery, University of Borås, SE 501-90, Borås, Sweden. .,Department of Chemistry, University of Sistan and Baluchestan, Zahedan, 98135-674, Iran.
| | - Ali Akbar Mirzaei
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, 98135-674, Iran
| | | | - Seyed Masoud Barakati
- Department of Electrical and Computer Engineering, University of Sistan and Baluchestan, Zahedan, 98135-674, Iran
| | - Hossein Atashi
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, 98135-674, Iran
| | - Abas Mohsenzadeh
- Swedish Centre for Resource Recovery, University of Borås, SE 501-90, Borås, Sweden
| | - Kim Bolton
- Swedish Centre for Resource Recovery, University of Borås, SE 501-90, Borås, Sweden
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10
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Yuan K, Zhong JQ, Sun S, Ren Y, Zhang JL, Chen W. Reactive Intermediates or Inert Graphene? Temperature- and Pressure-Determined Evolution of Carbon in the CH4–Ni(111) System. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01880] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kaidi Yuan
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou Industrial
Park, Jiangsu 215123, People’s Republic of China
- Department
of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
| | - Jian-Qiang Zhong
- Center
for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Shuo Sun
- Department
of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
| | - Yinjuan Ren
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Jia Lin Zhang
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Wei Chen
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou Industrial
Park, Jiangsu 215123, People’s Republic of China
- Department
of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
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11
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Weststrate CJ, Niemantsverdriet JW. Understanding FTS selectivity: the crucial role of surface hydrogen. Faraday Discuss 2017; 197:101-116. [PMID: 28170012 DOI: 10.1039/c6fd00191b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Monomeric forms of carbon play a central role in the synthesis of long chain hydrocarbons via the Fischer-Tropsch synthesis (FTS). We explored the chemistry of C1Hxad species on the close-packed surface of cobalt. Our findings on this simple model catalyst highlight the important role of surface hydrogen and vacant sites for product selectivity. We furthermore find that COad affects hydrogen in multiple ways. It limits the adsorption capacity for Had, lowers its adsorption energy and inhibits dissociative H2 adsorption. We discuss how these findings, extrapolated to pressures and temperatures used in applied FTS, can provide insights into the correlation between partial pressure of reactants and product selectivity. By combining the C1Hx stability differences found in the present work with literature reports of the reactivity of C1Hx species measured by steady state isotope transient kinetic analysis, we aim to shed light on the nature of the atomic carbon reservoir found in these studies.
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Affiliation(s)
- C J Weststrate
- SynCat@DIFFER, Syngaschem BV, PO Box 6336, 5600 HH Eindhoven, The Netherlands.
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12
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Carey SJ, Zhao W, Frehner A, Campbell CT, Jackson B. Energetics of Adsorbed Methyl and Methyl Iodide on Ni(111) by Calorimetry: Comparison to Pt(111) and Implications for Catalysis. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02457] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Spencer J. Carey
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Wei Zhao
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Amilla Frehner
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Charles T. Campbell
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Bret Jackson
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
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13
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Weststrate C, van Helden P, Niemantsverdriet J. Reflections on the Fischer-Tropsch synthesis: Mechanistic issues from a surface science perspective. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.04.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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van de Loosdrecht J, Ciobîcă IM, Gibson P, Govender NS, Moodley DJ, Saib AM, Weststrate CJ, Niemantsverdriet JW. Providing Fundamental and Applied Insights into Fischer–Tropsch Catalysis: Sasol–Eindhoven University of Technology Collaboration. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00595] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ionel M. Ciobîcă
- Sasol Technology
Netherlands BV, Vlierstraat 111, 7544 GG, Enschede, The Netherlands
| | - Philip Gibson
- Sasol, Group Technology, 1 Klasie Havenga Street, Sasolburg 1947, South Africa
| | - N. S. Govender
- Sasol, Group Technology, 1 Klasie Havenga Street, Sasolburg 1947, South Africa
| | - Denzil J. Moodley
- Sasol, Group Technology, 1 Klasie Havenga Street, Sasolburg 1947, South Africa
| | - Abdool M. Saib
- Sasol, Group Technology, 1 Klasie Havenga Street, Sasolburg 1947, South Africa
| | - C. J. Weststrate
- Laboratory
for Physical Chemistry of Surfaces, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - J. W. Niemantsverdriet
- Laboratory
for Physical Chemistry of Surfaces, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
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17
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Bothra P, Pati SK. Improved catalytic activity of rhodium monolayer modified nickel (110) surface for the methane dehydrogenation reaction: a first-principles study. NANOSCALE 2014; 6:6738-6744. [PMID: 24820886 DOI: 10.1039/c3nr06739d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The catalytic activity of pure Ni (110) and single Rh layer deposited Ni (110) surface for the complete dehydrogenation of methane is theoretically investigated by means of gradient-corrected periodic density functional theory. A detailed kinetic study, based on the analysis of the optimal reaction pathway for the transformation of CH4 to C and H through four elementary steps (CH4 → CH3 + H; CH3 → CH2 + H; CH2 → CH + H; CH → C + H) is presented for pure Ni (110) and Rh/Ni (110) surfaces and compared with pure Rh (110) surface. Through systematic examination of adsorbed geometries and transition states, we show that single layer deposition of Rh on Ni (110) surface has a striking influence on lowering the activation energy barrier of the dehydrogenation reaction. Moreover, it is found that a pure Ni (110) surface has a tendency for carbon deposition on the catalytic surface during the methane dissociation reaction which decreases the stability of the catalyst. However, the deposition of carbon is largely suppressed by the addition of a Rh overlayer on the pure Ni (110) surface. The physical origin of stronger chemisorption of carbon on Ni (110) relative to Rh/Ni (110) has been elucidated by getting insight into the electronic structures and d-band model of the catalytic surfaces. Considering the balance in both the catalytic activity as well as the catalyst stability, we propose that the Rh/Ni (110) surface possesses much improved catalytic property compared to pure Ni (110) and pure Rh (110) surfaces.
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Affiliation(s)
- Pallavi Bothra
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, 560064, India.
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18
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Weststrate C, Ciobîcă I, Saib A, Moodley D, Niemantsverdriet J. Fundamental issues on practical Fischer–Tropsch catalysts: How surface science can help. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.11.042] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Lu SY, Lin JS. Temperature effects on adsorption and diffusion dynamics of CH3CH2(ads) and H3C-C≡C(ads) on Ag(111) surface and their self-coupling reactions: ab initio molecular dynamics approach. J Chem Phys 2014; 140:024706. [PMID: 24437901 DOI: 10.1063/1.4861036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Density functional theory (DFT)-based molecular dynamics (DFTMD) simulations in combination with a Fourier transform of dipole moment autocorrelation function are performed to investigate the adsorption dynamics and the reaction mechanisms of self-coupling reactions of both acetylide (H3C-C(β)≡C(α) (ads)) and ethyl (H3C(β)-C(α)H2(ads)) with I(ads) coadsorbed on the Ag(111) surface at various temperatures. In addition, the calculated infrared spectra of H3C-C(β)≡C(α)(ads) and I coadsorbed on the Ag(111) surface indicate that the active peaks of -C(β)≡C(α)- stretching are gradually merged into one peak as a result of the dominant motion of the stand-up -C-C(β)≡C(α)- axis as the temperature increases from 200 K to 400 K. However, the calculated infrared spectra of H3C(β)-C(α)H2(ads) and I coadsorbed on the Ag(111) surface indicate that all the active peaks are not altered as the temperature increases from 100 K to 150 K because only one orientation of H3C(β)-C(α)H2(ads) adsorbed on the Ag(111) surface has been observed. These calculated IR spectra are in a good agreement with experimental reflection absorption infrared spectroscopy results. Furthermore, the dynamics behaviors of H3C-C(β)≡C(α)(ads) and I coadsorbed on the Ag(111) surface point out the less diffusive ability of H3C-C(β)≡C(α)(ads) due to the increasing s-character of Cα leading to the stronger Ag-Cα bond in comparison with that of H3C(β)-C(α)H2(ads) and I coadsorbed on the same surface. Finally, these DFTMD simulation results allow us to predict the energetically more favourable reaction pathways for self-coupling of both H3C-C(β)≡C(α)(ads) and H3C(β)-C(α)H2(ads) adsorbed on the Ag(111) surface to form 2,4-hexadiyne (H3C-C≡C-C≡C-CH3(g)) and butane (CH3-CH2-CH2-CH3(g)), respectively. The calculated reaction energy barriers for both H3C-C≡C-C≡C-CH3(g) (1.34 eV) and CH3-CH2-CH2-CH3(g) (0.60 eV) are further employed with the Redhead analysis to estimate the desorption temperatures approximately at 510 K and 230 K, respectively, which are in a good agreement with the experimental low-coverage temperature programmed reaction spectroscopy measurements.
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Affiliation(s)
- Shao-Yu Lu
- Department of Chemistry, Tamkang University, Tamsui 25137, Taiwan
| | - Jyh-Shing Lin
- Department of Chemistry, Tamkang University, Tamsui 25137, Taiwan
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20
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Che F, Zhang R, Hensley AJ, Ha S, McEwen JS. Density functional theory studies of methyl dissociation on a Ni(111) surface in the presence of an external electric field. Phys Chem Chem Phys 2014; 16:2399-410. [DOI: 10.1039/c3cp54135e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Somers W, Bogaerts A, van Duin A, Huygh S, Bal K, Neyts E. Temperature influence on the reactivity of plasma species on a nickel catalyst surface: An atomic scale study. Catal Today 2013. [DOI: 10.1016/j.cattod.2013.02.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Chen N, Huang Y, Utz AL. State-Resolved Reactivity of Methane (ν2 + ν4) on Ni(111). J Phys Chem A 2013; 117:6250-5. [DOI: 10.1021/jp400571v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nan Chen
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts
02155, United States
| | - Yongli Huang
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts
02155, United States
| | - Arthur L. Utz
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts
02155, United States
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23
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Cheng XH, Ding DJ, Yu YG, Jin MX. Softening of C—H Symmetric Stretching Vibrational Modes for CH2 and CH3 Radicals Adsorbed on Cun (n=1–6) Clusters. CHINESE J CHEM PHYS 2012. [DOI: 10.1088/1674-0068/25/06/649-653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Li J, Croiset E, Ricardez-Sandoval L. Methane dissociation on Ni (100), Ni (111), and Ni (553): A comparative density functional theory study. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.08.016] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Montemore MM, Medlin JW. A density functional study of C1–C4 alkyl adsorption on Cu(111). J Chem Phys 2012; 136:204710. [DOI: 10.1063/1.4722102] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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26
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An W, Zeng XC, Turner CH. First-principles study of methane dehydrogenation on a bimetallic Cu/Ni(111) surface. J Chem Phys 2009; 131:174702. [DOI: 10.1063/1.3254383] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Cheng XH, Jin MX, Hu Z, Hu FF, Ding DJ. Adsorption Behavior of CH2 and CH3 on Metal Clusters Cun (n = 16). CHINESE J CHEM PHYS 2008. [DOI: 10.1088/1674-0068/21/05/445-450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Wang SG, Cao DB, Li YW, Wang J, Jiao H. CO2 reforming of CH4 on Ni(111): a density functional theory calculation. J Phys Chem B 2007; 110:9976-83. [PMID: 16706455 DOI: 10.1021/jp060992g] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CO(2) reforming of CH(4) on Ni(111) was investigated by using density functional theory. On the basis of thermodynamic analyses, the first step is CH(4) sequential dissociation into surface CH (CH(4) --> CH(3) --> CH(2) --> CH) and hydrogen, and CO(2) dissociation into surface CO and O (CO(2) --> CO + O). The second step is CH oxygenation into CHO (CH + O --> CHO), which is more favored than dissociation into C and hydrogen (CH --> C + H). The third step is the dissociation of CHO into surface CO and H (CHO --> CO + H). This can explain the enhanced selectivity toward the formation of CO and H(2) on Ni catalysts. It is found that surface carbon formation by the Bouduard back reaction (2CO = C((ads)) + CO(2)) is more favored than by CH(4) sequential dehydrogenation. The major problem of CO(2) reforming of CH(4) is the very strong CO adsorption on Ni(111), which results in the accumulation of CO on the surface and hinders the subsequent reactions and promotes carbon deposition. Therefore, promoting CO desorption should maintain the reactivity and stability of Ni catalysts. The computed energy barriers of the most favorable elementary reaction identify the CH(4) activation into CH(3) and H as the rate-determining step of CO(2) reforming of CH(4) on Ni(111), in agreement with the isotopic experimental results.
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Affiliation(s)
- Sheng-Guang Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, PR China
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29
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Steinrück HP, Fuhrmann T, Papp C, Tränkenschuh B, Denecke R. A detailed analysis of vibrational excitations in x-ray photoelectron spectra of adsorbed small hydrocarbons. J Chem Phys 2006; 125:204706. [PMID: 17144722 DOI: 10.1063/1.2397678] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The vibrational fine structure of x-ray photoelectron (XP) spectra of a number of different small hydrocarbon molecules and reaction intermediates adsorbed on Pt(111) and Ni(111) has been investigated in detail. The data for methyl, methylidyne, acetylene, and ethylene can consistently be analyzed within the linear coupling model. The S factor, i.e., the intensity ratio of the first vibrationally excited to the adiabatic transition, is obtained to be 0.17+/-0.02 per C-H bond; for the deuterated species a value of 0.23+/-0.02 is obtained. Therefore, the vibrational fine structure can be used for fingerprinting in the analysis of XP spectra and for identifying unknown reaction intermediates. From the data, Deltar, the change of the minimum in the potential energy curve upon core ionization, is calculated within the linear coupling model using a first order correction. For all adsorbates, including the deuterated ones, a value of Deltar=0.060+/-0.004 A is obtained. Furthermore, from the binding energy of the adiabatic peak and from the energy of the vibrational excitation in the ionic final state some information on the adsorbate/substrate bond and the adsorption site can be derived.
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Affiliation(s)
- H-P Steinrück
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstrasse 3, D-91058 Erlangen, Germany
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30
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Wang GC, Li J, Xu XF, Li RF, Nakamura J. The relationship between adsorption energies of methyl on metals and the metallic electronic properties: A first-principles DFT study. J Comput Chem 2005; 26:871-8. [PMID: 15825187 DOI: 10.1002/jcc.20225] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A theoretical study of CH3 adsorbed on the (111) surface of some transition and noble metal surfaces M (M = Cu, Ni, Rh, Pt, Pd, Ag, Au) and on the Fe(100) is presented. We find that the hollow site is preferred more than the top one for Fe, Ni, Rh, and Cu, but it is the other way for Pt, Pd, Au, and Ag. In addition, a good linear relationship was observed between the chemisorption energy and d-band center for Group VIII metals or the square of the coupling matrix element for Group IB metals at the hollow site. Interestingly, with a detailed comparison of the adsorption energies at the top and hollow sites, we find that the adsorption energies among each group are very similar on the top site, which supports the theoretical model of Hammer and Norskov that the coupling between the HOMO of adsorbate and sp states of the metal is dominant and almost equal, and that the second coupling to the d-band contributes less but reflects the change of the adsorption energy. It confirms that the coupling to the d band comprises two opposite factors, that is, the d-band center was attractive and the square of the coupling matrix element was repulsive, such that the contributions from the two factors can counteract each other at the top site.
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Affiliation(s)
- Gui-Chang Wang
- Department of Chemistry, and the Center of Theoretical Chemistry Study, Nankai University, Tianjin 300071, People's Republic of China.
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31
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Cao DB, Zhang FQ, Li YW, Wang J, Jiao H. Density Functional Theory Study of Hydrogen Adsorption on Fe5C2(001), Fe5C2(110), and Fe5C2(100). J Phys Chem B 2005; 109:833-44. [PMID: 16866449 DOI: 10.1021/jp046239+] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Density functional theory calculations have been carried out for hydrogen adsorption on the (001), (110), and (100) surfaces of Fe5C2. At 1/3 and 2/3 monolyer (ML) on (001), the most stable hydrocarbon species is CsH, while CsH and CsH3 can coexist at 1 ML. On (110), only dissociated hydrogen is found at 2/5 ML, while CsH is the most stable hydrogen carbon species at 4/5 ML, and CsH and CH3 coexist at 6/5 ML. On (001) and (110) surfaces, CsH2 is less stable and can dissociate into CsH or convert into CsH3, respectively. These results are in agreement with the experimental observations. On the metallic Fe5C2(100) surface which lacks surface carbon atoms on the surface monolayer, dissociated hydrogen is found at 1/2 ML, while both dissociated hydrogen and activated H2 are found at 1 ML.
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Affiliation(s)
- Dong-Bo Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China
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32
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Yan XM, Robbins MD, White JM. Thermal Properties of t-Butyl Nitrite (TBN) on Cu(111). J Phys Chem B 2004. [DOI: 10.1021/jp048259h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- X.-M. Yan
- Department of Chemistry and Biochemistry, Center for Materials Chemistry, Texas Materials Institute, University of Texas, Austin, Texas 78712
| | - M. D. Robbins
- Department of Chemistry and Biochemistry, Center for Materials Chemistry, Texas Materials Institute, University of Texas, Austin, Texas 78712
| | - J. M. White
- Department of Chemistry and Biochemistry, Center for Materials Chemistry, Texas Materials Institute, University of Texas, Austin, Texas 78712
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33
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Smith RR, Killelea DR, DelSesto DF, Utz AL. Preference for Vibrational over Translational Energy in a Gas-Surface Reaction. Science 2004; 304:992-5. [PMID: 15143277 DOI: 10.1126/science.1096309] [Citation(s) in RCA: 241] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
State-resolved gas-surface reactivity measurements revealed that vibrational excitation of nu3 (the antisymmetric C-H stretch) activates methane dissociation more efficiently than does translational energy. Methane molecules in the vibrational ground state require 45 kilojoules per mole (kJ/mol) of translational energy to attain the same reactivity enhancement provided by 36 kJ/mol of nu3 excitation. This result contradicts a key assumption underlying statistical theories of gas-surface reactivity and provides direct experimental evidence of the central role that vibrational energy can play in activating gas-surface reactions.
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Affiliation(s)
- R R Smith
- Department of Chemistry and W. M. Keck Foundation Laboratory for Materials Chemistry, Tufts University, Medford, MA 02155, USA
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34
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Zhai RS, Chan YL, Chuang P, Hsu CK, Mukherjee M, Chuang TJ, Klauser R. Chemisorption and reaction characteristics of methyl radicals on Cu(110). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:3623-31. [PMID: 15875392 DOI: 10.1021/la036294u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Methyl radicals are generated by pyrolysis of azomethane, and the condition for achieving neat adsorption on Cu(110) is described for studying their chemisorption and reaction characteristics. The radical-surface system is examined by X-ray photoemission spectroscopy, ultraviolet photoemission spectroscopy, temperature-programmed desorption, low-energy electron diffraction (LEED), and high-resolution electron energy loss spectroscopy under ultrahigh vacuum conditions. It is observed that a small fraction of impinging CH3 radicals decompose into methylene possibly on surface defect sites. This type of CH2 radical has no apparent effect on CH3(ads) surface chemistry initiated by dehydrogenation to form active CH2(ads) followed by chain reactions to yield high-mass alkyl products. All thermal desorption products, such as H2, CH4, C2H4, C2H6, and C3H6, are detected with a single desorption peak near 475 K. The product yields increase with surface coverage until saturation corresponding to 0.50 monolayer of CH3(ads). The mass distribution is, however, invariant with initial CH3(ads) coverage, and all desorbed species exhibit first-order reaction kinetics. LEED measurement reveals a c(2 x 2) adsorbate structure independent of the amount of gaseous exposure. This strongly suggests that the radicals aggregate into close-packed two-dimensional islands at any exposure. The islanding behavior can be correlated with the reaction kinetics and is deemed to be essential for the chain propagation reactions. Some relevant aspects of the CH3/Cu(111) system are also presented. The new results are compared with those of prior studies employing methyl halides as radical sources. Major differences are found in the product distribution and desorption kinetics, and these are attributed to the influence of surface halogen atoms present in those earlier investigations.
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Affiliation(s)
- Run-Sheng Zhai
- Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan
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35
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Petersen MA, Jenkins SJ, King DA. Theory of Methane Dehydrogenation on Pt{110}(1 × 2). Part I: Chemisorption of CHx (x = 0 −3). J Phys Chem B 2004. [DOI: 10.1021/jp037880z] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Melissa A. Petersen
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Stephen J. Jenkins
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - David A. King
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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36
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Castonguay M, Roy JR, Lavoie S, Laliberté MA, McBreen PH. Methyl Pyruvate on Ni(111): Coverage-Dependent Thermal Chemistry. J Phys Chem B 2004. [DOI: 10.1021/jp049785b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- M. Castonguay
- Département de chimie, Université Laval, Québec (Qué). Canada, G1K 7P4
| | - J.-R. Roy
- Département de chimie, Université Laval, Québec (Qué). Canada, G1K 7P4
| | - S. Lavoie
- Département de chimie, Université Laval, Québec (Qué). Canada, G1K 7P4
| | - M-A. Laliberté
- Département de chimie, Université Laval, Québec (Qué). Canada, G1K 7P4
| | - P. H. McBreen
- Département de chimie, Université Laval, Québec (Qué). Canada, G1K 7P4
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37
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Liu F, Zhang XG, Liyanage R, Armentrout PB. Methane activation by nickel cluster cations, Ni[sub n][sup +] (n=2–16): Reaction mechanisms and thermochemistry of cluster-CH[sub x] (x=0–3) complexes. J Chem Phys 2004; 121:10976-90. [PMID: 15634047 DOI: 10.1063/1.1814095] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The kinetic energy dependences of the reactions of Ni+(n) (n=2-16) with CD(4) are studied in a guided ion beam tandem mass spectrometer over the energy range of 0-10 eV. The main products are hydride formation Ni(n)D+, dehydrogenation to form Ni(n)CD+(2), and double dehydrogenation yielding Ni(n)C+. These primary products decompose at higher energies to form Ni(n)CD+, Ni(n-1)D+, Ni(n-1)C+, Ni(n-1)CD+, and Ni(n-1)CD+(2). Ni(n)CD(2) (+) (n=5-9) and Ni(n-1)CD(2) (+) (n > or =4) are not observed. In general, the efficiencies of the single and double dehydrogenation processes increase with cluster size. All reactions exhibit thresholds, and cross sections for the various primary and secondary reactions are analyzed to yield reaction thresholds from which bond energies for nickel cluster cations to C, CD, CD(2), and CD(3) are determined. The relative magnitudes of these bond energies are consistent with simple bond order considerations. Bond energies for larger clusters rapidly reach relatively constant values, which are used to estimate the chemisorption energies of the C, CD, CD(2), and CD(3) molecular fragments to nickel surfaces.
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Affiliation(s)
- Fuyi Liu
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
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38
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Neubauer R, Whelan CM, Denecke R, Steinrück HP. The thermal chemistry of saturated layers of acetylene and ethylene on Ni(100) studied by in situ synchrotron x-ray photoelectron spectroscopy. J Chem Phys 2003. [DOI: 10.1063/1.1582432] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Affiliation(s)
- Micha Asscher
- Department of Physical Chemistry and Farkas Center for Light Induced Processes, The Hebrew University, Jerusalem 91904, Israel, and Department of Chemistry, Nuclear Research Center Negev, P.O.B. 9001, Beer-Sheva 84190, Israel
| | - Yehuda Zeiri
- Department of Physical Chemistry and Farkas Center for Light Induced Processes, The Hebrew University, Jerusalem 91904, Israel, and Department of Chemistry, Nuclear Research Center Negev, P.O.B. 9001, Beer-Sheva 84190, Israel
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40
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Petersen MA, Watson DTP, Jenkins SJ, King DA. Long-range ordering of methylidyne on Pt{110}(1×2). J Chem Phys 2002. [DOI: 10.1063/1.1483847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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42
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Bengaard H, Nørskov J, Sehested J, Clausen B, Nielsen L, Molenbroek A, Rostrup-Nielsen J. Steam Reforming and Graphite Formation on Ni Catalysts. J Catal 2002. [DOI: 10.1006/jcat.2002.3579] [Citation(s) in RCA: 843] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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43
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Rostrup-Nielsen JR, Sehested J, Nørskov JK. Hydrogen and synthesis gas by steam- and C02 reforming. ADVANCES IN CATALYSIS 2002. [DOI: 10.1016/s0360-0564(02)47006-x] [Citation(s) in RCA: 351] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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44
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Haug KL, Bürgi T, Gostein M, Trautman TR, Ceyer T. Catalytic Hydrogenation of Acetylene on Ni(111) by Surface-Bound H and Bulk H. J Phys Chem B 2001. [DOI: 10.1021/jp0119734] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. L. Haug
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - T. Bürgi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - M. Gostein
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - T. R. Trautman
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - T. Ceyer
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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45
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Castonguay M, Roy JR, Lavoie S, Adnot A, McBreen PH. Selective C-C bond activation of methyl pyruvate on Ni(111) to yield surface methoxycarbonyl. J Am Chem Soc 2001; 123:6429-30. [PMID: 11427075 DOI: 10.1021/ja003719f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Affiliation(s)
- Chameli Panja
- University of Southern California, Department of Chemistry, Los Angeles, California 90089-0482
| | - Najat A. Saliba
- University of Southern California, Department of Chemistry, Los Angeles, California 90089-0482
| | - Bruce E. Koel
- University of Southern California, Department of Chemistry, Los Angeles, California 90089-0482
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47
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48
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Michaelides A, Hu P. A first principles study of CH3 dehydrogenation on Ni(111). J Chem Phys 2000. [DOI: 10.1063/1.481412] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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49
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Papoian G, Nørskov JK, Hoffmann R. A Comparative Theoretical Study of the Hydrogen, Methyl, and Ethyl Chemisorption on the Pt(111) Surface. J Am Chem Soc 2000. [DOI: 10.1021/ja993483j] [Citation(s) in RCA: 183] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Garegin Papoian
- Contribution from the Department of Chemistry and Materials Science Center, Cornell University, Ithaca, New York 14853-1301, and Center for Atomic-scale Materials Physics, Department of Physics, Technical University of Denmark, Building 307, DK-2800 Lyngby, Denmark
| | - Jens K. Nørskov
- Contribution from the Department of Chemistry and Materials Science Center, Cornell University, Ithaca, New York 14853-1301, and Center for Atomic-scale Materials Physics, Department of Physics, Technical University of Denmark, Building 307, DK-2800 Lyngby, Denmark
| | - Roald Hoffmann
- Contribution from the Department of Chemistry and Materials Science Center, Cornell University, Ithaca, New York 14853-1301, and Center for Atomic-scale Materials Physics, Department of Physics, Technical University of Denmark, Building 307, DK-2800 Lyngby, Denmark
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50
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Michaelides A, Hu P. A density functional theory study of CH2 and H adsorption on Ni(111). J Chem Phys 2000. [DOI: 10.1063/1.481173] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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