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Mondal K, Megha, Banerjee A, Fortunelli A. Adsorption and Activation of CO2 on a Au19Pt Subnanometer Cluster in Aqueous Environment. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Atop adsorption of oxygen on small sized gold clusters: Analysis of size and site reactivity from restructuring perspective. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.113014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Joshi K, Krishnamurty S, Dar MA. Surface functionalization: an efficient alternative for promoting the catalytic activity of closed shell gold clusters. Phys Chem Chem Phys 2020; 22:23351-23359. [PMID: 33043944 DOI: 10.1039/d0cp01918f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Surface functionalization through adsorption of ligands or non-metal atoms is considered to be an interesting and viable approach for tuning the physicochemical properties of gold clusters. Highly stable and magic numbered electronic configurations of thiolate protected gold clusters such as Au25(SR)18, Au38(SR)24etc. with intriguing properties are the direct manifestation of the rich chemistry of the Au-S interface. The present investigation discerns the CO oxidation activity of structurally well characterized sulphur functionalized gold cluster anions AumS4-, m = 6-10. To establish an in-depth understanding, their activities are analyzed and compared with the corresponding pristine gold clusters. It is seen that sulphur functionalization irrespective of a closed or open shell nature leads to a significant decrease in the O2 adsorption energies on the anionic gold clusters. However, in sharp contrast to O2 adsorption, surface functionalization gives rise to multifarious catalytic behavior in AumS4- clusters with catalytic activity ranging from low (for Au6S4-, Au8S4-) to moderate (for Au9S4-, Au10S4-) to very high (for Au7S4-) for CO oxidation. It is interesting to note that the closed shell Au7S4- and Au9S4- clusters with poor O2 adsorption show remarkably low activation barriers and enhanced catalytic activity as compared to the open shell AumS4- clusters with an odd number of electrons. In particular, in the case of Au7S4- the lowest activation energy barriers of 0.01 and 0.21 eV are obtained, making the CO oxidation reaction facile. Moreover, ab initio molecular dynamics are performed to confirm the enhanced catalytic behaviour of Au7S4- and its dynamical stability during the desorption of CO2 molecule from its surface.
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Affiliation(s)
- Krati Joshi
- Functional Materials Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630 006, India
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Megha, Kamal C, Mondal K, Ghanty TK, Banerjee A. Remarkable Structural Effect on the Gold-Hydrogen Analogy in Hydrogen-Doped Gold Cluster. J Phys Chem A 2019; 123:1973-1982. [PMID: 30835119 DOI: 10.1021/acs.jpca.8b11797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In accordance with the well established gold-hydrogen analogy, a hydrogen atom mimics the properties of a gold atom in gold clusters. In a recent study it has been demonstrated that the properties of a hydrogen atom doped small gold cluster (Au7H) are not in conformity with the aforementioned analogy. In this paper we study the properties of the Au7H cluster exhaustively to re-examine the validity of the gold-hydrogen analogy in the context of adsorption of CO and O2 molecules on pristine gold and hydrogen atom doped gold clusters. For this purpose we first determine the most stable structure of the Au7H cluster by using an ab initio density functional theory based method with generalized gradient approximation (GGA) and Meta-GGA exchange-correlation functionals. We carry out geometry optimization by considering various planar and three-dimensional isomers of the Au7H cluster as initial geometries. We find that the lowest energy structure of Au7H is a planar one with C2 v symmetry, and it is very close to the structure of the Au8 cluster with D4 h symmetry. Furthermore, to examine the validity of the gold-hydrogen analogy we carry out a detailed investigation of the adsorption of CO and O2 molecules on the most stable as well as various other low energy isomers of the Au7H cluster. We find that the adsorption energies and the extent of activation of CO and O2 molecules on the most stable planar isomer of Au7H are almost the same as those on the parent Au8 cluster with D4 h symmetry proving the validity of the gold-hydrogen analogy. On the other hand, for the high energy three-dimensional isomers of the Au7H cluster obtained from the pristine Au8 cluster with T d symmetry, we find a significant enhancement in adsorption energy as well as the extent of activation of CO and O2 molecules as compared to those for the corresponding pristine cluster. Therefore, the high reactivity of the 3D isomer of the Au7H cluster may be attributed to its existence in a state which is higher in energy than its most stable planar isomer.
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Affiliation(s)
- Megha
- Human Resources Development Section , Raja Ramanna Centre for Advanced Technology , Indore 452013 , India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094 , India
| | - Chinnathambi Kamal
- Human Resources Development Section , Raja Ramanna Centre for Advanced Technology , Indore 452013 , India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094 , India
| | - Krishnakanta Mondal
- Department of Physics , Indian Institute of Science Education and Research , Pune 411008 , India
| | - Tapan K Ghanty
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094 , India.,Theoretical Chemistry Section, Chemistry Group , Bhabha Atomic Research Centre , Mumbai 400085 , India
| | - Arup Banerjee
- Human Resources Development Section , Raja Ramanna Centre for Advanced Technology , Indore 452013 , India.,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094 , India
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Negreiros FR, Halder A, Yin C, Singh A, Barcaro G, Sementa L, Tyo EC, Pellin MJ, Bartling S, Meiwes‐Broer K, Seifert S, Sen P, Nigam S, Majumder C, Fukui N, Yasumatsu H, Vajda S, Fortunelli A. Bimetallic Ag‐Pt Sub‐nanometer Supported Clusters as Highly Efficient and Robust Oxidation Catalysts. Angew Chem Int Ed Engl 2017; 57:1209-1213. [DOI: 10.1002/anie.201709784] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/15/2017] [Indexed: 11/12/2022]
Affiliation(s)
| | - Avik Halder
- Materials Science Division Argonne National Laboratory Lemont IL USA
| | - Chunrong Yin
- Materials Science Division Argonne National Laboratory Lemont IL USA
| | - Akansha Singh
- Harish-Chandra Research Institute, HBNI Chhatnag Road Jhunsi Allahabad 211019 India
| | | | - Luca Sementa
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche Pisa Italy
| | - Eric C. Tyo
- Materials Science Division Argonne National Laboratory Lemont IL USA
| | - Michael J. Pellin
- Materials Science Division Argonne National Laboratory Lemont IL USA
| | | | | | - Sönke Seifert
- X-ray Science Division Argonne National Laboratory Lemont IL USA
| | - Prasenjit Sen
- Harish-Chandra Research Institute, HBNI Chhatnag Road Jhunsi Allahabad 211019 India
| | - Sandeep Nigam
- Chemistry Division Bhabha Atomic Research Centre Trombay Mumbai- 400 085 India
| | - Chiranjib Majumder
- Chemistry Division Bhabha Atomic Research Centre Trombay Mumbai- 400 085 India
| | - Nobuyuki Fukui
- East Tokyo Laboratory Genesis Research Institute, Inc. Ichikawa Chiba 272-0001 Japan
| | - Hisato Yasumatsu
- Cluster Research Laboratory Toyota Technological Institute: in, East Tokyo Laboratory, Genesis Research Institute, Inc. Ichikawa Chiba 272-0001 Japan
| | - Stefan Vajda
- Materials Science Division Argonne National Laboratory Lemont IL USA
- Nanoscience and Technology Division Argonne National Laboratory Lemont IL USA
- Institute for Molecular Engineering University of Chicago Chicago IL USA
| | - Alessandro Fortunelli
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche Pisa Italy
- Materials and Process Simulation Center California Institute of Technology Pasadena CA USA
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Negreiros FR, Halder A, Yin C, Singh A, Barcaro G, Sementa L, Tyo EC, Pellin MJ, Bartling S, Meiwes-Broer KH, Seifert S, Sen P, Nigam S, Majumder C, Fukui N, Yasumatsu H, Vajda S, Fortunelli A. Bimetallic Ag-Pt Sub-nanometer Supported Clusters as Highly Efficient and Robust Oxidation Catalysts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Avik Halder
- Materials Science Division; Argonne National Laboratory; Lemont IL USA
| | - Chunrong Yin
- Materials Science Division; Argonne National Laboratory; Lemont IL USA
| | - Akansha Singh
- Harish-Chandra Research Institute, HBNI; Chhatnag Road Jhunsi Allahabad 211019 India
| | - Giovanni Barcaro
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche; Pisa Italy
| | - Luca Sementa
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche; Pisa Italy
| | - Eric C. Tyo
- Materials Science Division; Argonne National Laboratory; Lemont IL USA
| | - Michael J. Pellin
- Materials Science Division; Argonne National Laboratory; Lemont IL USA
| | | | | | - Sönke Seifert
- X-ray Science Division; Argonne National Laboratory; Lemont IL USA
| | - Prasenjit Sen
- Harish-Chandra Research Institute, HBNI; Chhatnag Road Jhunsi Allahabad 211019 India
| | - Sandeep Nigam
- Chemistry Division; Bhabha Atomic Research Centre; Trombay Mumbai- 400 085 India
| | - Chiranjib Majumder
- Chemistry Division; Bhabha Atomic Research Centre; Trombay Mumbai- 400 085 India
| | - Nobuyuki Fukui
- East Tokyo Laboratory; Genesis Research Institute, Inc.; Ichikawa Chiba 272-0001 Japan
| | - Hisato Yasumatsu
- Cluster Research Laboratory; Toyota Technological Institute: in, East Tokyo Laboratory, Genesis Research Institute, Inc. Ichikawa; Chiba 272-0001 Japan
| | - Stefan Vajda
- Materials Science Division; Argonne National Laboratory; Lemont IL USA
- Nanoscience and Technology Division; Argonne National Laboratory; Lemont IL USA
- Institute for Molecular Engineering; University of Chicago; Chicago IL USA
| | - Alessandro Fortunelli
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche; Pisa Italy
- Materials and Process Simulation Center; California Institute of Technology; Pasadena CA USA
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Cheng X, Li F, Wang C. Density functional theory study of CO oxidation by O2 on Aun (n=11, 13 and 14) clusters as catalysis: From a comparative review. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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