1
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Yin Q, Wang H, Zhao J, Li C, Mao Y. A DFT study towards dynamic structures of iron and iron carbide and their effects on the activity of the Fischer-Tropsch process. RSC Adv 2023; 13:34262-34272. [PMID: 38020027 PMCID: PMC10663884 DOI: 10.1039/d3ra06467k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
The Fe-based Fischer-Tropsch synthesis (FTS) catalyst shows a rich phase chemistry under pre-treatment and FTS conditions. The exact structural composition of the active site, whether iron or iron carbide (FeCx), is still controversial. Aiming to obtain an insight into the active sites and their role in affecting FTS activity, the swarm intelligence algorithm is implemented to search for the most stable Fe(100), Fe(110), Fe(210) surfaces with different carbon ratios. Then, ab initio atomistic thermodynamics and Wulffman construction were employed to evaluate the stability of these surfaces at different chemical potentials of carbon. Their FTS reactivity and selectivity were later assessed by semi-quantitative micro-kinetic equations. The results show that stability, reactivity, and selectivity of the iron are all affected by the carbonization process when the carbon ratio increases. Formation of the carbide, a rather natural process under experimental conditions, would moderately increase the turnover frequency (TOF), but both iron and iron carbide are active to the reaction.
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Affiliation(s)
- Qiang Yin
- Department of Forestry Engineering, School of Materials Science and Engineering, Central South University of Forestry & Technology Changsha China
- Hunan Engineering Research Centre of Full Life-cycle Energy-efficient Buildings and Environmental Health, Central South University of Forestry and Technology Changsha Hunan China
| | - Hanqing Wang
- School of Civil Engineering, Central South University of Forestry & Technology Changsha China
- Hunan Engineering Research Centre of Full Life-cycle Energy-efficient Buildings and Environmental Health, Central South University of Forestry and Technology Changsha Hunan China
| | - Jinping Zhao
- School of Civil Engineering, Central South University of Forestry & Technology Changsha China
| | - Chengjun Li
- School of Civil Engineering, Central South University of Forestry & Technology Changsha China
| | - Yu Mao
- School of Chemical Sciences, University of Auckland Auckland 1010 New Zealand
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2
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Zhang S, Wang K, He F, Gao X, Fan S, Ma Q, Zhao T, Zhang J. H 2O Derivatives Mediate CO Activation in Fischer-Tropsch Synthesis: A Review. Molecules 2023; 28:5521. [PMID: 37513393 PMCID: PMC10384174 DOI: 10.3390/molecules28145521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
The process of Fischer-Tropsch synthesis is commonly described as a series of reactions in which CO and H2 are dissociated and adsorbed on the metals and then rearranged to produce hydrocarbons and H2O. However, CO dissociation adsorption is regarded as the initial stage of Fischer-Tropsch synthesis and an essential factor in the control of catalytic activity. Several pathways have been proposed to activate CO, namely direct CO dissociation, activation hydrogenation, and activation by insertion into growing chains. In addition, H2O is considered an important by-product of Fischer-Tropsch synthesis reactions and has been shown to play a key role in regulating the distribution of Fischer-Tropsch synthesis products. The presence of H2O may influence the reaction rate, the product distribution, and the deactivation rate. Focus on H2O molecules and H2O-derivatives (H*, OH* and O*) can assist CO activation hydrogenation on Fe- and Co-based catalysts. In this work, the intermediates (C*, O*, HCO*, COH*, COH*, CH*, etc.) and reaction pathways were analyzed, and the H2O and H2O derivatives (H*, OH* and O*) on Fe- and Co-based catalysts and their role in the Fischer-Tropsch synthesis reaction process were reviewed.
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Affiliation(s)
- Shuai Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Kangzhou Wang
- School of Materials and New Energy, Ningxia University, Yinchuan 750021, China
| | - Fugui He
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xinhua Gao
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Subing Fan
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qingxiang Ma
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Tiansheng Zhao
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Jianli Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University, Yinchuan 750021, China
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3
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Liu Y, Yuan X, Lu K, Chen W, Song YF, Yang Y, Li YW, Wen XD. Initial stage of carbonization of iron during hydrocarbons dissociation: a molecular dynamics study. Phys Chem Chem Phys 2023; 25:4313-4322. [PMID: 36688704 DOI: 10.1039/d2cp01991d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The carbonization of iron is a very important early phenomenon in the field of heterogeneous catalysis and the petrochemical industry, but the mechanism is still controversial. In this work, the carbonization mechanism and carbonization structure of iron nanoparticles by different carbon sources (CH4, C2H6, C2H4, C2H2) were systematically investigated using the reactive molecular dynamics method. The results show that saturated alkanes are dehydrogenated while adsorbed, but unsaturated olefins and alkynes undergo bond-breaking while adsorbed. The C-H bond is more likely to break than the C-C bond. Hydrocarbons with high carbon content have a strong ability to carbonize Fe nanoparticles under the same conditions. For C2H4 and C2H2, the C atoms generated from dissociation form a large number of long carbon chains intertwined with branched chains and multiple carbon rings. The C2 species formed by C2H2 after complete dehydrogenation diffuse rapidly to the interior of the nanoparticles, releasing the surface active sites and accelerating the carbonization process. Carbon-rich iron carbides (FeCx) with different Fe/C ratios were obtained by carbonization with different carbon sources. In addition, the Fe(110) surface exhibits the strongest carburizing ability. These findings provide systematic insights into the initial stages of metal Fe carburization.
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Affiliation(s)
- Yubing Liu
- State Key Laboratory of Chemical Resource Engineering, School of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China. .,State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
| | - Xiaoze Yuan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
| | - Kuan Lu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
| | - Wei Chen
- State Key Laboratory of Chemical Resource Engineering, School of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, School of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Yong Yang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
| | - Xiao-Dong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, P. R. China. .,National Energy Center for Coal to Clean Fuels, Synfuels China Co., Ltd., Huairou District, Beijing, 101400, P. R. China
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4
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Wu Z, Li Z, Li Y, Zhang Y, Li J. Improving the DFT computational accuracy for CO activation on Fe surfaces by Bayesian error estimation functional with van der Waals correlation. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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5
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Zeng Y, Lemay JC, Dong Y, Garcia J, Groves MN, McBreen PH. Ligand-Assisted Carbonyl Bond Activation in Single Diastereomeric Complexes on Platinum. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yang Zeng
- CCVC and Department of Chemistry, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Jean-Christian Lemay
- CCVC and Department of Chemistry, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Yi Dong
- CCVC and Department of Chemistry, Université Laval, Québec, Québec G1V 0A6, Canada
| | - James Garcia
- Department of Chemistry and Biochemistry, California State University Fullerton, Fullerton, California 92831, United States
| | - Michael. N Groves
- Department of Chemistry and Biochemistry, California State University Fullerton, Fullerton, California 92831, United States
| | - Peter H. McBreen
- CCVC and Department of Chemistry, Université Laval, Québec, Québec G1V 0A6, Canada
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6
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Elsanousi A, Riadi Y, Ouerghi O, Geesi MH. Synthesis, Characterization of TiO 2-Based Nanostructure as Efficient Catalyst for the Synthesis of New Heterocycles Benzothiazole-Linked Pyrrolidin-2-One: Catalytic Performances Are Particle’s Size Dependent. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2044868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ammar Elsanousi
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Oussama Ouerghi
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
- Université Tunis El Manar, Tunis, Tunisia
| | - Mohammed H. Geesi
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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7
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Abstract
Metal Fe is one of the phases existing on iron-based catalysts for a high-temperature water gas shift reaction (WGSR), but research on the activity of metal Fe in WGSR is almost not reported. In this work, the density functional theory (DFT) method was used to systematically study the reaction activity and mechanisms of WGSR on metal Fe (110), including the dissociation of H2O, the transformation of CO and the formation of H2, as well as the analysis of surface electronic properties. The results show that (1) the direct dissociation of H2O occurs easily on Fe (110) and the energy barrier is less than 0.9 eV; (2) the generation of CO2 is difficult and its energy barrier is above 1.8 eV; (3) H migrates easily on the Fe surface and the formation of H2 also occurs with an energy barrier of 1.47 eV. Combined with the results of Fe3O4, it can be concluded that the active phase should be Fe3O4 with O vacancy defects, and the iron-rich region plays an important role in promoting the formation of H2 in WGSR.
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8
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Waleska NJ, Düll F, Bachmann P, Hemauer F, Steinhauer J, Papp C. Reactivity and Passivation of Fe Nanoclusters on h-BN/Rh(111). Chemistry 2021; 27:17087-17093. [PMID: 34342077 PMCID: PMC9290904 DOI: 10.1002/chem.202102590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 12/02/2022]
Abstract
The reactivity of iron nanocluster arrays on h‐BN/Rh(111) was studied using in situ high‐resolution X‐ray photoelectron spectroscopy. The morphology and reactivity of the iron nanoclusters (Fe‐NCs) were investigated by CO adsorption. On‐top and hollow/edge sites were determined to be the available adsorption sites on the as‐prepared Fe‐NCs and CO dissociation was observed at 300 K. C‐ and O‐precovered Fe‐NCs showed no catalytic activity towards CO dissociation because the hollow/edge sites were blocked by the C and O atoms. Therefore, these adsorption sites were identified to be the most active sites of the Fe‐NCs.
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Affiliation(s)
- Natalie J Waleska
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Fabian Düll
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Philipp Bachmann
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Felix Hemauer
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Johann Steinhauer
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Christian Papp
- Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
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9
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Liu X, Ma Z, Meng Y, Ma YJ, Wen XD. First-principles study on the mechanism of water-gas shift reaction on the Fe3O4 (111)-Fetet1. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Riadi Y, Geesi MH, Ouerghi O, Dehbi O, Elsanousi A, Azzallou R. Synergistic Catalytic Effect of the Combination of Deep Eutectic Solvents and Hierarchical H-TiO2 Nanoparticles toward the Synthesis of Benzimidazole-Linked Pyrrolidin-2-One Heterocycles: Boosting Reaction Yield. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1991397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Kingdom of Saudi Arabia
| | - Mohamed H. Geesi
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Oussama Ouerghi
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
- Université Tunis El Manar, Tunis, Tunisia
| | - Oussama Dehbi
- Department of Chemistry, College of Science and Arts of Al Qurayyat, Jouf University, Saudi Arabia
| | - Ammar Elsanousi
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Rachid Azzallou
- Laboratoire de Biochimie, Environnement & Agroalimentaire, URAC 36, Faculté des Sciences et techniques de Mohammedia, Université Hassan II-Casablanca, Mohammedia, Morocco
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11
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Effect of surface structure and Pd doping of Fe catalysts on the selective hydrodeoxygenation of phenol. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.07.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Felício-Sousa P, Andriani KF, Da Silva JLF. Ab initio investigation of the role of the d-states occupation on the adsorption properties of H 2, CO, CH 4 and CH 3OH on the Fe 13, Co 13, Ni 13 and Cu 13 clusters. Phys Chem Chem Phys 2021; 23:8739-8751. [PMID: 33876033 DOI: 10.1039/d0cp06091g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we report a theoretical investigation, based on density functional theory calculations, into the role of the occupation d-states on the adsorption properties of CH4, CO, H2 and CH3OH on 3d 13-atom transition-metal (TM13) clusters (TM = Fe, Co, Ni, Cu). Except for Cu13, a gradual increase in the occupation of the d-states, i.e., from Fe13 to Ni13, increases the magnitude of the adsorption energy almost linearly for the H2/TM13 and CO/TM13 systems, which can be explained by the enhancement of the sp-d hybridization due to the shift of the d-states towards the highest occupied molecular orbital (HOMO). For Cu13, the d-states are located well below the HOMO, which reduces the sp-d hybridization, and hence, a smaller adsorption energy is obtained. However, this picture does not hold for CH4/TM13 and CH3OH/TM13, where the adsorption energy has nearly the same value for all TM13 clusters, which can be explained by electrostatic effects such as local polarization of the molecules and nearby TM atoms, and hence, the basic features of physisorption systems. Based on the electron density difference, the polarization effects are slightly larger for systems with empty d-states.
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Affiliation(s)
- Priscilla Felício-Sousa
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, São Paulo, Brazil.
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13
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Intrinsic mechanism of active metal dependent primary amine selectivity in the reductive amination of carbonyl compounds. J Catal 2021. [DOI: 10.1016/j.jcat.2021.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Liu X, Liu J, Yang Y, Li YW, Wen X. Theoretical Perspectives on the Modulation of Carbon on Transition-Metal Catalysts for Conversion of Carbon-Containing Resources. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04739] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xingchen Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People’s Republic of China
- The University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jinjia Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People’s Republic of China
- The University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yong Yang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People’s Republic of China
- The University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing 101400, People’s Republic of China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People’s Republic of China
- The University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing 101400, People’s Republic of China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People’s Republic of China
- The University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing 101400, People’s Republic of China
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15
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Zhang N, Ma J, Li R, Jiao H. Hydrocracking of Fused Aromatic Hydrocarbons Catalyzed by Al-Substituted HZSM-5—A Case Study of 9,10-Dihydroanthracene. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00946] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nan Zhang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jinghong Ma
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Ruifeng Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein Strasse 29a, 18059 Rostock, Germany
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16
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Kavitha C, Narendra K, Ratnakar A, Poojith N, Sampath C, Banik S, Suchetan P, Potla KM, Naidu NV. An analysis of structural, spectroscopic signatures, reactivity and anti-bacterial study of synthetized 4-chloro-3-sulfamoylbenzoic acid. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Liu C, Zhu L, Wen X, Yang Y, Li YW, Jiao H. Exploring direct and hydrogen-assisted CO activation on iridium surfaces – surface dependent activity. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02559f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
To understand CO activation on iridium surfaces, direct dissociation, H-assisted activation and hydrogenation to methanol were computed on the flat Ir(111) and Ir(100), corrugated Ir(110) and Ir(210), and stepped Ir(311) and Ir(221) surfaces.
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Affiliation(s)
- Chunli Liu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Ling Zhu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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18
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Methikkalam RRJ, Ghosh J, Bhuin RG, Bag S, Ragupathy G, Pradeep T. Iron assisted formation of CO2 over condensed CO and its relevance to interstellar chemistry. Phys Chem Chem Phys 2020; 22:8491-8498. [DOI: 10.1039/c9cp06983f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic conversion of CO to CO2 assisted by neutral iron atoms has been investigated in ultrahigh vacuum (UHV) under cryogenic conditions (10 K).
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Affiliation(s)
- Rabin Rajan J. Methikkalam
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Jyotirmoy Ghosh
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Radha Gobinda Bhuin
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Soumabha Bag
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Gopi Ragupathy
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
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19
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Abdulhussein HA, Ferrari P, Vanbuel J, Heard C, Fielicke A, Lievens P, Janssens E, Johnston RL. Altering CO binding on gold cluster cations by Pd-doping. NANOSCALE 2019; 11:16130-16141. [PMID: 31432842 DOI: 10.1039/c9nr04237g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The introduction of dopant atoms into metal nanoparticles is an effective way to control the interaction with adsorbate molecules and is important in many catalytic processes. In this work, experimental and theoretical evidence of the influence of Pd doping on the bonding between small cationic AuN+ clusters and CO is presented. The CO adsorption is studied by combining low-pressure collision cell reactivity and infrared multiple photon dissociation spectroscopy experiments with density functional theory calculations. Measured dissociation rates of cluster-CO complexes (N ≤ 21) allow the estimation of cluster-CO binding energies, showing that Pd doping increases the CO adsorption energy to an extent that is size-dependent. These trends are reproduced by theoretical calculations up to N = 13. In agreement with theory, measurements of the C-O vibrational frequency suggest that for the doped PdAuN-1+ (N = 3-5, 11) clusters, CO adsorbs on an Au atom, while for N = 6-10 and N = 12-14, CO interacts directly with the Pd dopant. A pronounced red-shifting of the C-O vibrational frequency is observed when CO interacts directly with the Pd dopant, indicating a significant back-donation of electron charge from Pd to CO. In contrast, the blue-shifted frequencies, observed when CO interacts with an Au atom, indicate that σ-donation dominates the Au-CO interaction. Studying such systems at the sub-nanometre scale enables a fundamental comprehension of the interactions between adsorbates, dopants and the host (Au) species at the atomic level.
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Wang J, Huang S, Howard S, Muir BW, Wang H, Kennedy DF, Ma X. Elucidating Surface and Bulk Phase Transformation in Fischer–Tropsch Synthesis Catalysts and Their Influences on Catalytic Performance. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01104] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Wang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shouying Huang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shaun Howard
- Manufacturing, Commonwealth Scientific and Industrial Research Organisation, CSIRO, Clayton, Victoria 3168, Australia
| | - Benjamin W. Muir
- Manufacturing, Commonwealth Scientific and Industrial Research Organisation, CSIRO, Clayton, Victoria 3168, Australia
| | - Hongyu Wang
- Key Laboratory
for Green Chemical Technology of Ministry of Education, Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Danielle F. Kennedy
- Manufacturing, Commonwealth Scientific and Industrial Research Organisation, CSIRO, Clayton, Victoria 3168, Australia
| | - Xinbin Ma
- Key Laboratory
for Green Chemical Technology of Ministry of Education, Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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21
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Yin J, He Y, Liu X, Zhou X, Huo CF, Guo W, Peng Q, Yang Y, Jiao H, Li YW, Wen XD. Visiting CH4 formation and C1 + C1 couplings to tune CH4 selectivity on Fe surfaces. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Tian X, Li P, Wang T. Morphology of MoP catalyst under hydrogenation conditions: A DFT based thermodynamics study. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.12.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Xu C, Zhou S, Chen J, Wang Y, He L. Adsorption mechanism of CO molecule on Al(111) surface: periodic DFT investigation. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The adsorption mechanism of the CO molecule on Al(111) surface has been investigated systematically at the atom-molecule level by the method of periodic density functional theory. The adsorption energies, adsorption structures, charge transfer, and density of states have been calculated in a wide range of coverage. It is found that the hcp-hollow site is the energetically favorable site. A significant positive correlation has been found between the adsorption energy (Eads) and coverage. The adsorbed CO molecules are almost perpendicular on the surface with the C atom facing the surface. There is an obvious charge transfer from Al atoms to the C atom; the Al atoms that have interaction with the C atom offer the most charge. The 4σ, 1π, and 5σ molecular orbitals of CO are found to contribute to bonding with the Al. The charges filling in the 2π molecular orbital contribute to C–O bond activation. In conclusion, the passivation of aluminum surface and the activation of CO molecule occur simultaneously in the adsorption of CO on Al surface.
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Affiliation(s)
- Chenhong Xu
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Suqin Zhou
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Jing Chen
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Yuxiang Wang
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Lei He
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Key Laboratory for Attapulgite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
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25
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Ma D, Ma B, Lu Z, He C, Tang Y, Lu Z, Yang Z. Interaction between H 2O, N 2, CO, NO, NO 2 and N 2O molecules and a defective WSe 2 monolayer. Phys Chem Chem Phys 2018; 19:26022-26033. [PMID: 28920598 DOI: 10.1039/c7cp04351a] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this study, the interaction between gas molecules, including H2O, N2, CO, NO, NO2 and N2O, and a WSe2 monolayer containing an Se vacancy (denoted as VSe) has been theoretically studied. Theoretical results show that H2O and N2 molecules are highly prone to be physisorbed on the VSe surface. The presence of the Se vacancy can significantly enhance the sensing ability of the WSe2 monolayer toward H2O and N2 molecules. In contrast, CO and NO molecules highly prefer to be molecularly chemisorbed on the VSe surface with the non-oxygen atom occupying the Se vacancy site. Furthermore, the exposed O atoms of the molecularly chemisorbed CO or NO can react with additional CO or NO molecules, to produce C-doped or N-doped WSe2 monolayers. The calculated energies suggest that the filling of the CO or NO molecule and the removal of the exposed O atom are both energetically and dynamically favorable. Electronic structure calculations show that the WSe2 monolayers are p-doped by the CO and NO molecules, as well as the C and N atoms. However, only the NO molecule and N atom doped WSe2 monolayers exhibit significantly improved electronic structures compared with VSe. The NO2 and N2O molecules will dissociate directly to form an O-doped WSe2 monolayer, for which the defect levels due to the Se vacancy can be completely removed. The calculated energies suggest that although the dissociation processes for NO2 and N2O molecules are highly exothermic, the N2O dissociation may need to operate at an elevated temperature compared with room temperature, due to its large energy barrier of ∼1 eV.
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Affiliation(s)
- Dongwei Ma
- School of Physics
- Anyang Normal University
- Anyang 455000
- China
| | - Benyuan Ma
- Physics and Electronic Engineering College
- Nanyang Normal University
- Nanyang 473061
- China
| | - Zhiwen Lu
- Physics and Electronic Engineering College
- Nanyang Normal University
- Nanyang 473061
- China
| | - Chaozheng He
- Physics and Electronic Engineering College
- Nanyang Normal University
- Nanyang 473061
- China
| | - Yanan Tang
- College of Physics and Electronic Engineering
- Zhengzhou Normal University
- Zhengzhou
- China
| | - Zhansheng Lu
- College of Physics and Materials Science
- Henan Normal University
- Xinxiang 453007
- China
| | - Zongxian Yang
- College of Physics and Materials Science
- Henan Normal University
- Xinxiang 453007
- China
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26
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Murthy PK, Suneetha V, Armaković S, Armaković SJ, Suchetan P, Giri L, Rao RS. Synthesis, characterization and computational study of the newly synthetized sulfonamide molecule. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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He Y, Zhao P, Liu J, Guo W, Yang Y, Li YW, Huo CF, Wen XD. Suppression by Pt of CO adsorption and dissociation and methane formation on Fe5C2(100) surfaces. Phys Chem Chem Phys 2018; 20:25246-25255. [DOI: 10.1039/c8cp04670k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
To understand the chemical origin of platinum promotion effects on iron based Fischer–Tropsch synthesis catalysts, the effects of Pt on CO adsorption and dissociation as well as surface carbon hydrogenation on the Fe5C2(100) facet with different surface C* contents have been studied using the spin-polarized density functional theory method.
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Affiliation(s)
- Yurong He
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Peng Zhao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Jinjia Liu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Wenping Guo
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Chun-Fang Huo
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Xiao-Dong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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28
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Wang W, Wang Y, Wang GC. Ethanol synthesis from syngas over Cu(Pd)-doped Fe(100): a systematic theoretical investigation. Phys Chem Chem Phys 2018; 20:2492-2507. [DOI: 10.1039/c7cp06693g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The selectivity of ethanol formation are in the order of Fe3Cu6/Fe(100) > Fe3Pd6/Fe(100) > Fe9/Fe(100) > Cu9/Fe(100).
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Affiliation(s)
- Wei Wang
- College of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Ye Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Gui-Chang Wang
- College of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- P. R. China
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29
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Muñoz Ramo D, Jenkins SJ. Adsorption of atmospheric gases on cementite 010 surfaces. J Chem Phys 2017; 146:204703. [PMID: 28571338 PMCID: PMC5449272 DOI: 10.1063/1.4984036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 05/10/2017] [Indexed: 01/10/2023] Open
Abstract
We study the adsorption of a series of small molecules on the nonstoichiometric {010} surface of cementite (θ-Fe3C) by means of first-principles calculations. We find that CO, N2, H2O, and CH4 prefer to adsorb over iron atoms in an atop configuration. O2, CO2, and the OH radical prefer a configuration bridging two iron atoms and CH2O adsorbs in a configuration bridging a surface iron atom and a surface carbon atom. Adsorption energies are small for H2, CO2, and CH4, indicating a physisorption process, while those for CO, CH2O and especially for O2 and the OH radical are large, indicating a strong chemisorption process. H2O and N2 display adsorption energies between these two extremes, indicating moderate chemisorption. The dissociation of H2, CH2O, the OH radical, and O2 is favoured on this surface. Comparison with adsorption on Fe{100} surfaces indicates that most of these gases have similar adsorption energies on both surfaces, with the exception of CO and the OH radical. In addition, we find similarities between the reactivities of cementite and Mo2C surfaces, due to the similar covalent character of both carbides.
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Affiliation(s)
- David Muñoz Ramo
- Department of Chemistry, University of Cambridge, Cambridge, United Kingdom
| | - Stephen J Jenkins
- Department of Chemistry, University of Cambridge, Cambridge, United Kingdom
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30
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Adsorption manners of hydrogen on Pt(1 0 0), (1 1 0) and (1 1 1) surfaces at high coverage. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.02.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Tian X, Wang T, Jiao H. Mechanism of coverage dependent CO adsorption and dissociation on the Mo(100) surface. Phys Chem Chem Phys 2017; 19:2186-2192. [PMID: 28045154 DOI: 10.1039/c6cp08129k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of coverage dependent CO adsorption and dissociation on the Mo(100) surface was investigated using periodic density functional theory. Structure optimization and frequency calculation were carried out using the GGA-PBE method and a p(3 × 3) supercell model. Energetic data have been obtained using the revised PBE method and the PBE optimized structures. CO adsorption prefers tilted adsorption configuration at the 4-fold hollow sites at low coverage and tilted and atop configurations at high coverage. The computed C-O stretching frequencies of the tilted and atop adsorbed CO molecules agree very well with the experimental results. Starting from the saturation coverage, five binding states have been found: two for molecular (α) CO adsorption and three for dissociative (β) CO adsorption, which are in agreement with the temperature-programmed desorption experiments. In addition, CO prefers dissociation with very low barriers in all coverages as long as free sites are available and is coverage independent; this nicely explains the observed CO dissociation at very low temperatures. All such agreements validate our computational methods and provide the basis of further studies.
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Affiliation(s)
- Xinxin Tian
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Tao Wang
- Univ Lyon, Ens de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, F-69342, Lyon, France
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein Strasse 29a, 18059 Rostock, Germany.
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32
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Yang K, Zhang M, Yu Y. Theoretical insights into the effect of terrace width and step edge coverage on CO adsorption and dissociation over stepped Ni surfaces. Phys Chem Chem Phys 2017; 19:17918-17927. [DOI: 10.1039/c7cp03050a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We rationalized Ni(211) as a representative model for stepped surfaces and explored the effect of coverage on CO activation.
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Affiliation(s)
- Kuiwei Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- R&D Center for Petrochemical Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Minhua Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- R&D Center for Petrochemical Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yingzhe Yu
- Key Laboratory for Green Chemical Technology of Ministry of Education
- R&D Center for Petrochemical Technology
- Tianjin University
- Tianjin 300072
- P. R. China
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33
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Liu S, Li YW, Wang J, Jiao H. Reaction of CO, H2O, H2 and CO2 on the clean as well as O, OH and H precovered Fe(100) and Fe(111) surfaces. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02103d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption and activation of CO, H2O, CO2 and H2 on the clean as well as O, OH and H precovered Fe(100) surface at 0.25 ML coverage and Fe(111) surface at 0.33 ML coverage were computed (GGA-PBE) to investigate the catalytic activity of metallic iron.
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Affiliation(s)
- Shaoli Liu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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Chakrabarty A, Bouhali O, Mousseau N, Becquart CS, El-Mellouhi F. Influence of surface vacancy defects on the carburisation of Fe 110 surface by carbon monoxide. J Chem Phys 2016; 145:044710. [PMID: 27475389 DOI: 10.1063/1.4958966] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Adsorption and dissociation of gaseous carbon monoxide (CO) on metal surfaces is one of the most frequently occurring processes of carburisation, known as primary initiator of metal dusting corrosion. Among the various factors that can significantly influence the carburisation process are the intrinsic surface defects such as single surface vacancies occurring at high concentrations due to their low formation energy. Intuitively, adsorption and dissociation barriers of CO are expected to be lowered in the vicinity of a surface vacancy, due to the strong attractive interaction between the vacancy and the C atom. Here the adsorption energies and dissociation pathways of CO on clean and defective Fe 110 surface are explored by means of density functional theory. Interestingly, we find that the O adatom, resulting from the CO dissociation, is unstable in the electron-deficit neighbourhood of the vacancy due to its large electron affinity, and raises the barrier of the carburisation pathway. Still, a full comparative study between the clean surface and the vacancy-defected surface reveals that the complete process of carburisation, starting from adsorption to subsurface diffusion of C, is more favourable in the vicinity of a vacancy defect.
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Affiliation(s)
| | | | - Normand Mousseau
- Département de Physique and RQMP, Université de Montréal, Case Postale 6128, Succursale Centre-Ville, Montréal (QC) H3C 3J7, Canada
| | - Charlotte S Becquart
- UMET, UMR CNRS 8207, ENSCL, Université Lille I, 59655 Villeneuve d'Ascq cédex, France
| | - Fedwa El-Mellouhi
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, P.O. Box 5825 Doha, Qatar
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35
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Nanocrystalline iron–boron catalysts for low-temperature CO hydrogenation: Selective liquid fuel production and structure–activity correlation. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Liu JX, Li WX. Theoretical study of crystal phase effect in heterogeneous catalysis. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1267] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jin-Xun Liu
- College of Chemistry and Material Sciences, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), CAS Center for Excellence in Nanoscience; University of Science and Technology of China; Hefei China
- Hefei National Laboratory for Physical Sciences at the Microscale; Hefei China
| | - Wei-Xue Li
- College of Chemistry and Material Sciences, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), CAS Center for Excellence in Nanoscience; University of Science and Technology of China; Hefei China
- Hefei National Laboratory for Physical Sciences at the Microscale; Hefei China
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37
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Bo T, Lan JH, Zhang YJ, Zhao YL, He CH, Chai ZF, Shi WQ. Adsorption and dissociation of H2O on the (001) surface of uranium mononitride: energetics and mechanism from first-principles investigation. Phys Chem Chem Phys 2016; 18:13255-66. [PMID: 27118421 DOI: 10.1039/c6cp01175f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interfacial interaction of uranium mononitride (UN) with water from the environment unavoidably leads to corrosion of nuclear fuels, which affects a lot of processes in the nuclear fuel cycle. In this work, the microscopic adsorption behaviors of water on the UN(001) surface as well as water dissociation and accompanying H2 formation mechanisms have been investigated on the basis of DFT+U calculations and ab initio atomistic thermodynamics. For adsorption of one H2O monomer, the predicted adsorption energies are -0.88, -2.07, and -2.07 eV for the most stable molecular, partially dissociative, and completely dissociative adsorption, respectively. According to our calculations, a water molecule dissociates into OH and H species via three pathways with small energy barriers of 0.78, 0.72, and 0.85 eV, respectively. With the aid of the neighboring H atom, H2 formation through the reaction of H* + OH* can easily occur via two pathways with energy barriers of 0.61 and 0.36 eV, respectively. The molecular adsorption of water shows a slight coverage dependence on the surface while this dependence becomes obvious for partially dissociative adsorption as the water coverage increases from 1/4 to 1 ML. In addition, based on the "ab initio atomistic thermodynamic" simulations, increasing H2O partial pressure will enhance the stability of the adsorbed system and water coverage, while increasing temperature will decrease the H2O coverage. We found that the UN(001) surface reacts easily with H2O at room temperature, leading to dissolution and corrosion of the UN fuel materials.
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Affiliation(s)
- Tao Bo
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
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Zhao S, Liu XW, Huo CF, Wen XD, Guo W, Cao D, Yang Y, Li YW, Wang J, Jiao H. Morphology control of K2O promoter on Hägg carbide (χ-Fe5C2) under Fischer–Tropsch synthesis condition. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.07.035] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Wang T, Tian X, Yang Y, Li YW, Wang J, Beller M, Jiao H. Co-adsorption and mutual interaction of nCO +mH2 on the Fe(1 1 0) and Fe(1 1 1) surfaces. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.07.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Shi Y, Yang Y, Li YW, Jiao H. Theoretical study about Mo2C(101)-catalyzed hydrodeoxygenation of butyric acid to butane for biomass conversion. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02008e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the conversion mechanism of fatty acids to long-chain alkanes using molybdenum carbide catalysts, the full potential energy surface of the hydrogenation of butyric acid to butane on the H-pre-covered hexagonal Mo2C(101) surface has been systematically computed.
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Affiliation(s)
- Yun Shi
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
- National Energy Center for Coal to Liquids
| | - Yong Yang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
- National Energy Center for Coal to Liquids
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
- National Energy Center for Coal to Liquids
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
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Wang T, Tian X, Yang Y, Li YW, Wang J, Beller M, Jiao H. Structures of seven molybdenum surfaces and their coverage dependent hydrogen adsorption. Phys Chem Chem Phys 2016; 18:6005-12. [DOI: 10.1039/c5cp07349a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Surface morphology of metallic molybdenum and coverage dependent hydrogen adsorption.
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Affiliation(s)
- Tao Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Xinxin Tian
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- P. R. China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- P. R. China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- P. R. China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- P. R. China
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
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42
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Hao X, Wang B, Wang Q, Zhang R, Li D. Insight into both coverage and surface structure dependent CO adsorption and activation on different Ni surfaces from DFT and atomistic thermodynamics. Phys Chem Chem Phys 2016; 18:17606-18. [DOI: 10.1039/c6cp01689h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO adsorption and activation from low to high coverage on Ni catalyst.
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Affiliation(s)
- Xiaobin Hao
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Baojun Wang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Qiang Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- P. R. China
| | - Riguang Zhang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Debao Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- P. R. China
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43
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Yang K, Zhang M, Yu Y. Direct versus hydrogen-assisted CO dissociation over stepped Ni and Ni3Fe surfaces: a computational investigation. Phys Chem Chem Phys 2015; 17:29616-27. [PMID: 26478478 DOI: 10.1039/c5cp04335b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption and dissociation of CO over stepped Ni and Ni3Fe surfaces were systematically studied using density functional theory slab calculations. Both (211)-like surface structure terminations (NiNi step and NiFe step, denoted as Ni3Fe(211)-AA and Ni3Fe(211)-AB) are considered for Ni3Fe. Direct scission of the C-O bond in CO is identified as the least likely one among the three proposed dissociation pathways and CO dissociation via a CHO intermediate appears to be most feasible at low CO coverage on pure and alloyed Ni(211) surfaces. The priority of H-assisted CO dissociation might originate from the more activated C-O bond in COH and CHO. Compared to Ni(211), the Ni3Fe(211)-AB surface could facilitate CO activation especially for the most possible CHO intermediate mechanism, whose rate-limiting step is found to be altered. The d-band center theory and Mulliken charge analysis are also employed to explain the activity difference between Ni3Fe(211)-AB and Ni3Fe(211)-AA. The significant structural sensitivity of CO dissociation highlights the importance of Fe locating in the step edge and the high reactivity of Ni3Fe(211)-AB is largely ascribed to the synergistic effect between Ni and Fe at the step edge.
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Affiliation(s)
- Kuiwei Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, P. R. China.
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44
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Krishnamoorthy A, Yildiz B. Quantifying the origin of inter-adsorbate interactions on reactive surfaces for catalyst screening and design. Phys Chem Chem Phys 2015; 17:22227-34. [PMID: 26243171 DOI: 10.1039/c5cp03143e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The adsorption energy of reactant molecules and reaction intermediates is one of the key descriptors of catalytic activity of surfaces and is commonly used as a metric in screening materials for design of heterogeneous catalysts. The efficacy of such screening schemes depends on the accuracy of calculated adsorption energies under reaction conditions. These adsorption energies can depend strongly on interactions between adsorbed molecules in the adlayer. However, these interactions are typically not accounted for in screening procedures that use DFT-based zero-coverage adsorption energies. Identifying the physical mechanisms behind these interactions is essential to model realistic catalyst surfaces under reaction conditions and to understand the dependence of adsorption energies on reaction parameters like surface strain and composition. This article describes a method to quantitatively resolve the observed inter-adsorbate interactions into various direct adsorbate-adsorbate interactions (i.e. Coulombic and steric) and surface-mediated interactions (i.e. adsorbate-induced surface relaxation and change in electronic structure) by combining density functional theory and cluster-expansion calculations of coverage-dependent adsorption energies. The approach is implemented on a model catalyst surface of FeS2(100) reacting with H2S molecules. We find that the adsorption energy of H2S molecules can be affected by over 0.55 eV by the repulsive inter-adsorbate interactions caused primarily by the adsorbate-induced changes to the electronic structure of the FeS2 surface. These interactions also show a strong monotonic dependence on surface strain, being three times stronger on compressively strained surfaces than on surfaces under tensile strain. The large magnitude of inter-adsorbate interactions as well as their strong dependence on lattice strain demonstrate the need for using coverage-dependent adsorption energies for more accurate screening, for example for strained catalytic systems like core-shell and overlayer structures.
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Affiliation(s)
- Aravind Krishnamoorthy
- Laboratory for Electrochemical Interfaces, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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45
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Shi Y, Zhu Y, Yang Y, Li YW, Jiao H. Exploring Furfural Catalytic Conversion on Cu(111) from Computation. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00303] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yun Shi
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People’s Republic of China
- National Energy
Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing, 101400, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People’s Republic of China
| | - Yulei Zhu
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People’s Republic of China
- National Energy
Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing, 101400, People’s Republic of China
| | - Yong Yang
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People’s Republic of China
- National Energy
Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing, 101400, People’s Republic of China
| | - Yong-Wang Li
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People’s Republic of China
- National Energy
Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing, 101400, People’s Republic of China
| | - Haijun Jiao
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, People’s Republic of China
- Leibniz-Institut
für Katalyse e.V. an der Universität Rostock, Albert-Einstein Strasse 29a, 18059 Rostock, Germany
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46
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Methane, formaldehyde and methanol formation pathways from carbon monoxide and hydrogen on the (0 0 1) surface of the iron carbide χ-Fe5C2. J Catal 2015. [DOI: 10.1016/j.jcat.2015.01.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Liu S, Tian X, Wang T, Wen X, Li YW, Wang J, Jiao H. Coverage dependent water dissociative adsorption on Fe(110) from DFT computation. Phys Chem Chem Phys 2015; 17:8811-21. [PMID: 25743027 DOI: 10.1039/c5cp00044k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using density functional theory calculations and ab initio atomistic thermodynamics, H2O adsorption and dissociation on the Fe(110) p(4 × 4) surface at different coverages have been computed. At the lowest coverage, the adsorbed H2O, OH, O and H species can migrate easily on the surface. For (H2O)n adsorption, H2O molecules donating H atoms for H-bonding adsorb more strongly than those accepting H atoms for H-bonding. Monomeric H2O dissociation is favored both thermodynamically and kinetically. On nO pre-covered Fe(110) surfaces (n = 1-8), H2O dissociation is accessible for nO + H2O (n = 1-7) both kinetically and thermodynamically, while H2O desorption instead of dissociation occurs at n = 8. With the increased number of surface O atoms, H2 dissociative adsorption energies vary in a narrow range for n = 1-4 and decrease for n = 5-7, while at n = 8, the surface does not adsorb H2. At low OH coverage (n = 2, 4), OH groups are perpendicularly adsorbed without H-bonding, while for n≥ 6, adsorbed OH groups are linearly arranged and stabilized by H-bonding. The maximal OH coverage (n = 12) is 0.75 ML and the reasonable O coverage (n = 7) is 0.44 ML, in line with the experiment. The calculated desorption temperatures of H2O and H2 agree well with the available experimental data. These results provide fundamental insights into water-involved reactions catalyzed by iron and interaction mechanisms of water interaction with metal surfaces.
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Affiliation(s)
- Shaoli Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
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48
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Wang T, Tian X, Yang Y, Li YW, Wang J, Beller M, Jiao H. Coverage dependent adsorption and co-adsorption of CO and H2 on the CdI2-antitype metallic Mo2C(001) surface. Phys Chem Chem Phys 2015; 17:1907-17. [DOI: 10.1039/c4cp04331f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The adsorption and co-adsorption of CO and H2 at different coverage on the CdI2-antitype metallic Mo2C(001) surface termination have been systematically computed at the level of periodic density functional theory.
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Affiliation(s)
- Tao Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Xinxin Tian
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- PR China
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
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49
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Zhao P, He Y, Cao DB, Wen X, Xiang H, Li YW, Wang J, Jiao H. High coverage adsorption and co-adsorption of CO and H2 on Ru(0001) from DFT and thermodynamics. Phys Chem Chem Phys 2015; 17:19446-56. [DOI: 10.1039/c5cp02486b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The adsorption and co-adsorption of CO and H2 at different coverages on p(4 × 4) Ru(0001) have been computed using periodic density functional theory (GGA-RPBE) and atomistic thermodynamics.
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Affiliation(s)
- Peng Zhao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yurong He
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Dong-Bo Cao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Hongwei Xiang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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