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Vakili M, Gholizadeh R, Ghadi A, Salmasi E, Sinnokrot M. Computational investigation of N 2O adsorption and dissociation on the silicon-embedded graphene catalyst: A density functional theory perspective. J Mol Graph Model 2020; 101:107752. [PMID: 32961478 DOI: 10.1016/j.jmgm.2020.107752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/29/2020] [Accepted: 09/05/2020] [Indexed: 12/20/2022]
Abstract
One of the encouraging processes to protect the environment is the catalytic conversion of N2O and other harmful greenhouse gases. Employing heteroatom dopants into the Graphene structure for this conversion is an attractive technique owing to its relatively low price and the very low destructive impacts. DFT was applied to explore fundamental and principal reactions of N2O adsorption and dissociation over the Silicon-embedded Graphene catalyst to contribute to the search for green catalysts in the conversion of toxic gases into less harmful ones. Forming a surface peroxy group O22-, N2O bond cleavage and oxygen atom transfer were theoretically investigated. It is found that the N2O molecule requires +0.52, +0.88 and + 0.4 eV of activation energies through mentioned three reactions, respectively, to adsorb and decompose to N2 and O2. The parallel, lying-atop-011 and flat were stable forms with adsorption energies of -0.20 (-4.65), -0.19 (-4.53) and -0.18 (-4.46) and -0.19 eV (-4.53 kcal/mol), respectively. The achieved outcomes reveal that Silicon-embedded Graphene has a high potential to be used as a more efficient and green catalyst for the catalytic conversion of the air polluting gases in comparison to the Selenium-doped Graphene, Fe+, Manganese-embedded Graphene and Magnesium oxide (MgO) catalysts.
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Affiliation(s)
- Mohammadtaghi Vakili
- Green Intelligence Environmental School, Yangtze Normal University, Chongqing, 408100, China
| | - Reza Gholizadeh
- Laboratory of Chemical Engineering Thermodynamics, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, PR China.
| | - Aliakbar Ghadi
- Department of Materials Science and Engineering, Faculty of Engineering, University of Zanjan, Zanjan, 45371-38791, Iran
| | - E Salmasi
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, PR China
| | - Mutasem Sinnokrot
- Chemistry Department, Khalifa University of Science and Technology, Abu Dhabi, 127788, United Arab Emirates
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2
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Klein J, Brimaud S, Engstfeld A, Behm R. Atomic scale insights on the electronic and geometric effects in the electro-oxidation of CO on PtxRu1-x/Ru(0001) surface alloys. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Henß AK, Sakong S, Messer PK, Wiechers J, Schuster R, Lamb DC, Groß A, Wintterlin J. Density fluctuations as door-opener for diffusion on crowded surfaces. Science 2019; 363:715-718. [PMID: 30765561 DOI: 10.1126/science.aav4143] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 12/26/2018] [Indexed: 11/02/2022]
Abstract
How particles can move on a catalyst surface that, under the conditions of an industrial process, is highly covered by adsorbates and where most adsorption sites are occupied has remained an open question. We have studied the diffusion of O atoms on a fully CO-covered Ru(0001) surface by means of high-speed/variable-temperature scanning tunneling microscopy combined with density functional theory calculations. Atomically resolved trajectories show a surprisingly fast diffusion of the O atoms, almost as fast as on the clean surface. This finding can be explained by a "door-opening" mechanism in which local density fluctuations in the CO layer intermittently create diffusion pathways on which the O atoms can move with low activation energy.
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Affiliation(s)
- Ann-Kathrin Henß
- Department of Chemistry, Ludwig-Maximilians-Universität München, Germany
| | - Sung Sakong
- Institute of Theoretical Chemistry, University of Ulm, Ulm, Germany
| | - Philipp K Messer
- Department of Chemistry, Ludwig-Maximilians-Universität München, Germany
| | | | - Rolf Schuster
- Institute of Physical Chemistry, Karlsruher Institut für Technologie, Karlsruhe, Germany
| | - Don C Lamb
- Department of Chemistry, Ludwig-Maximilians-Universität München, Germany
| | - Axel Groß
- Institute of Theoretical Chemistry, University of Ulm, Ulm, Germany
| | - Joost Wintterlin
- Department of Chemistry, Ludwig-Maximilians-Universität München, Germany.
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Arevalo RL, Aspera SM, Sison Escaño MC, Nakanishi H, Kasai H. Ru-Catalyzed Steam Methane Reforming: Mechanistic Study from First Principles Calculations. ACS OMEGA 2017; 2:1295-1301. [PMID: 31457505 PMCID: PMC6640994 DOI: 10.1021/acsomega.6b00462] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 02/10/2017] [Indexed: 06/10/2023]
Abstract
Elucidating the reaction mechanism of steam methane reforming (SMR) is imperative for the rational design of catalysts for efficient hydrogen production. In this paper, we provide mechanistic insights into SMR on Ru surface using first principles calculations based on dispersion-corrected density functional theory. Methane activation (i.e., C-H bond cleavage) was found to proceed via a thermodynamically exothermic dissociative adsorption process, resulting in (CH y + zH)* species ("*" denotes a surface-bound state, and y + z = 4), with C* and CH* being the most stable adsorbates. The calculation of activation barriers suggests that the conversion of C* into O-containing species via C-O bond formation is kinetically slow, indicating that the surface reaction of carbon intermediates with oxygen is a possible rate-determining step. The results suggest the importance of subsequent elementary reactions following methane activation in determining the formation of stable carbon structures on the surface that deactivates the catalyst or the conversion of carbon into O-containing species.
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Affiliation(s)
- Ryan Lacdao Arevalo
- National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
| | - Susan Meñez Aspera
- National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
| | | | - Hiroshi Nakanishi
- National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
- Department of Applied Physics and Center for International
Affair, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hideaki Kasai
- National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
- Department of Applied Physics and Center for International
Affair, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba Meguro-ku, Tokyo 153-8505, Japan
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5
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Avanesian T, Gusmão GS, Christopher P. Mechanism of CO2 reduction by H2 on Ru(0 0 0 1) and general selectivity descriptors for late-transition metal catalysts. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.016] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Cai JQ, Luo HJ, Tao XM, Tan MQ. Initial Subsurface Incorporation of Oxygen into Ru(0001): A Density Functional Theory Study. Chemphyschem 2015; 16:3937-48. [DOI: 10.1002/cphc.201500681] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 10/02/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Jian-Qiu Cai
- Department of Physics; Zhejiang University; No. 38 Zheda Road Hangzhou 310027 China
- College of Physics and Electronic Information Engineering; Wenzhou University, Chashan Higher Education Park; Wenzhou 325035 China
| | - Hai-Jun Luo
- Department of Physics; Zhejiang University; No. 38 Zheda Road Hangzhou 310027 China
- College of Physics and Electronic Information Engineering; Wenzhou University, Chashan Higher Education Park; Wenzhou 325035 China
| | - Xiang-Ming Tao
- Department of Physics; Zhejiang University; No. 38 Zheda Road Hangzhou 310027 China
| | - Ming-Qiu Tan
- Department of Physics; Zhejiang University; No. 38 Zheda Road Hangzhou 310027 China
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White JD, Chen J, Matsiev D, Auerbach DJ, Wodtke AM. Vibrationally promoted electron emission from low work-function metal surfaces. J Chem Phys 2006; 124:64702. [PMID: 16483224 DOI: 10.1063/1.2166360] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
We observe electron emission when vibrationally excited NO molecules with vibrational state v, in the range of 9 < or = v < or =18, are scattered from a Cs-dosed Au surface. The quantum efficiency increases strongly with v, increasing up to 10(-2) electrons per NO (v) collision, a value several orders of magnitude larger than that observed in experiments with similar molecules in the ground vibrational state. The electron emission signal, as a function of v, has a threshold where the vibrational excitation energy slightly exceeds the surface work function. This threshold behavior strongly suggests that we are observing the direct conversion of NO vibrational energy into electron kinetic energy. Several potential mechanisms for the observed electron emission are explored, including (1) vibrational autodetachment, (2) an Auger-type two-electron process, and (3) vibrationally promoted dissociation. The results of this work provide direct evidence for nonadiabatic energy-transfer events associated with large amplitude vibrational motion at metal surfaces.
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Affiliation(s)
- Jason D White
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, 93106-9510, USA
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8
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Liem SY, Clarke JHR. Evidence from first principles calculations for a bent CO2 intermediate in the oxidation of carbon monoxide on the Cu (110) surface. J Chem Phys 2004; 121:4339-45. [PMID: 15332984 DOI: 10.1063/1.1777219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have carried out first principles plane wave density-functional theory calculations to study the adsorption of CO molecule on a clean and unreconstructed Cu (110) surface at 1/12 monolayer coverage and have investigated the subsequent oxidation by preadsorbed oxygen atoms. As found experimentally, the CO adsorbs perpendicular to the surface plane through the carbon atom; the top site was found to be the most favorable position for CO adsorption although the short-bridge site is only slightly less stable. Surprisingly, for a sparely oxidized surface with O atoms adsorbed in hollow sites the coadsorption energy is slightly negative for only the above two CO sites which have therefore been used as starting points to explore the energy surface of the oxidation reaction. We have confirmed the existence of bent CO(2) surface intermediate as previously suggested from experimental studies. Using the nudged elastic band method, we have characterized a two step reaction which involves the formation of this intermediate. The results suggest that the rate determining step of the oxidation reaction is the formation of the intermediate and the energy barrier (200 meV) is close to although smaller than experimentally estimated values.
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Affiliation(s)
- S Y Liem
- Department of Chemistry, UMIST, Manchester, M60 1QD, United Kingdom
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10
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Baxter RJ, Hu P. Insight into why the Langmuir–Hinshelwood mechanism is generally preferred. J Chem Phys 2002. [DOI: 10.1063/1.1458938] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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11
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Zhang CJ, Hu P. The possibility of single C–H bond activation in CH4 on a MoO3-supported Pt catalyst: A density functional theory study. J Chem Phys 2002. [DOI: 10.1063/1.1449942] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Zhang CJ, Hu P. Methane transformation to carbon and hydrogen on Pd(100): Pathways and energetics from density functional theory calculations. J Chem Phys 2002. [DOI: 10.1063/1.1423663] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhang CJ, Hu P. A first principles study of methanol decomposition on Pd(111): Mechanisms for O–H bond scission and C–O bond scission. J Chem Phys 2001. [DOI: 10.1063/1.1405157] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Zhang CJ, Baxter RJ, Hu P, Alavi A, Lee MH. A density functional theory study of carbon monoxide oxidation on the Cu3Pt(111) alloy surface: Comparison with the reactions on Pt(111) and Cu(111). J Chem Phys 2001. [DOI: 10.1063/1.1395626] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Ge Q, Desai S, Neurock M, Kourtakis K. CO Adsorption on Pt−Ru Surface Alloys and on the Surface of Pt−Ru Bulk Alloy. J Phys Chem B 2001. [DOI: 10.1021/jp011144i] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Q. Ge
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22903, and DuPont Central Research and Development Experimental Station, Wilmington, Delaware 19880
| | - S. Desai
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22903, and DuPont Central Research and Development Experimental Station, Wilmington, Delaware 19880
| | - M. Neurock
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22903, and DuPont Central Research and Development Experimental Station, Wilmington, Delaware 19880
| | - K. Kourtakis
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22903, and DuPont Central Research and Development Experimental Station, Wilmington, Delaware 19880
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16
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Zhang CJ, Hu P, Alavi A. Insight into electron-mediated reaction mechanisms: Catalytic CO oxidation on a ruthenium surface. J Chem Phys 2001. [DOI: 10.1063/1.1365150] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Kim YD, Seitsonen AP, Wendt S, Wang J, Fan C, Jacobi K, Over H, Ertl G. Characterization of Various Oxygen Species on an Oxide Surface: RuO2(110). J Phys Chem B 2001. [DOI: 10.1021/jp003213j] [Citation(s) in RCA: 180] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y. D. Kim
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - A. P. Seitsonen
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - S. Wendt
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - J. Wang
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - C. Fan
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - K. Jacobi
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - H. Over
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - G. Ertl
- Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
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Zhang CJ, Hu P. CO oxidation on Pd(100) and Pd(111): a comparative study of reaction pathways and reactivity at low and medium coverages. J Am Chem Soc 2001; 123:1166-72. [PMID: 11456670 DOI: 10.1021/ja002432f] [Citation(s) in RCA: 213] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have performed density functional theory calculations with the generalized gradient approximation to investigate CO oxidation on a close-packed transition metal surface, Pd(111), and a more open surface, Pd(100), aiming to shed light on surface structure effects on reaction pathways and reactivity, an important issue in catalysis. Reaction pathways on both surfaces at two different coverages have been studied. It is found that the reaction pathways on both surfaces possess crucial common features despite the fact that they have different surface symmetries. Having determined reaction barriers in these systems, we find that the reaction on Pd(111) is strongly coverage dependent. Surface coverages, however, have little effect on the reaction on Pd(100). Calculations also reveal that the low coverage reactions are structure sensitive while the medium coverage reactions are not. Detailed discussions on these results are given.
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Affiliation(s)
- C J Zhang
- School of Chemistry, The Queen's University of Belfast, Belfast BT9 5AG, United Kingdom
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