1
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Wang M, Wa Q, Bai X, He Z, Samarakoon WS, Ma Q, Du Y, Chen Y, Zhou H, Liu Y, Wang X, Feng Z. The Restructuring-Induced CoO x Catalyst for Electrochemical Water Splitting. JACS AU 2021; 1:2216-2223. [PMID: 34977893 PMCID: PMC8715481 DOI: 10.1021/jacsau.1c00346] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 05/19/2023]
Abstract
Restructuring is an important yet less understood phenomenon in the catalysis community. Recent studies have shown that a group of transition metal sulfide catalysts can completely or partially restructure during electrochemical reactions which then exhibit high activity even better than the best commercial standards. However, such restructuring processes and the final structures of the new catalysts are elusive, mainly due to the difficulty from the reaction-induced changes that cannot be captured by ex situ characterizations. To establish the true structure-property relationship in these in situ generated catalysts, we use multimodel operando characterizations including Raman spectroscopy, X-ray absorption spectroscopy, and X-ray reflectivity to investigate the restructuring of a representative catalyst, Co9S8, that shows better activity compared to the commercial standard RuO2 during the oxygen evolution reaction (OER), a key half reaction in water-splitting for hydrogen generation. We find that Co9S8 ultimately converts to oxide cluster (CoO x ) containing six oxygen coordinated Co octahedra as the basic unit which is the true catalytic center to promote high OER activity. The density functional theory calculations verify the in situ generated CoO x consisting of edge-sharing CoO6 octahedral clusters as the actual active sites. Our results also provide insights to design other transition-metal-based materials as efficient electrocatalysts that experience a similar restructuring in OER.
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Affiliation(s)
- Maoyu Wang
- School
of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Qingbo Wa
- School
of Advanced Materials, Shenzhen Graduate
School, Peking University, Shenzhen 518055, China
| | - Xiaowan Bai
- Texas
Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zuyun He
- School
of Environment and Energy, South China University
of Technology, Guangzhou 510006, China
| | - Widitha S. Samarakoon
- School
of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Qing Ma
- DND-CAT,
Synchrotron Research Center, Northwestern
University, Evanston, Illinois 60208, United
States
| | - Yingge Du
- Physical
and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Yan Chen
- School
of Environment and Energy, South China University
of Technology, Guangzhou 510006, China
| | - Hua Zhou
- X-ray
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- E-mail:
| | - Yuanyue Liu
- Texas
Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- E-mail:
| | - Xinwei Wang
- School
of Advanced Materials, Shenzhen Graduate
School, Peking University, Shenzhen 518055, China
- E-mail:
| | - Zhenxing Feng
- School
of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
- E-mail:
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2
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Das A, Park H, Chen Y, Choudhury D, Lee TL, Elam JW, Zapol P, Bedzyk MJ. Atomic-Scale Structure of Chemically Distinct Surface Oxygens in Redox Reactions. J Am Chem Soc 2021; 143:17937-17941. [PMID: 34672550 DOI: 10.1021/jacs.1c07926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
During redox reactions, oxide-supported catalytic systems undergo structural and chemical changes. Improving subsequent catalytic properties requires an understanding of the atomic-scale structure with chemical state specificity under reaction conditions. For the case of 1/2 monolayer vanadia on α-TiO2(110), we use X-ray standing wave (XSW) excited X-ray photoelectron spectroscopy to follow the redox induced atomic positional and chemical state changes of this interface. While the resulting XSW 3D composite atomic maps include the Ti and O substrate atoms and V surface atoms, our focus in this report is on the previously unseen surface oxygen species with comparison to density functional theory predictions.
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Affiliation(s)
- Anusheela Das
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Haesun Park
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States.,School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yanna Chen
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Devika Choudhury
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Tien-Lin Lee
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Jeffrey W Elam
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Peter Zapol
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Michael J Bedzyk
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
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3
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Wang M, Feng Z. Interfacial processes in electrochemical energy systems. Chem Commun (Camb) 2021; 57:10453-10468. [PMID: 34494049 DOI: 10.1039/d1cc01703a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Electrochemical energy systems such as batteries, water electrolyzers, and fuel cells are considered as promising and sustainable energy storage and conversion devices due to their high energy densities and zero or negative carbon dioxide emission. However, their widespread applications are hindered by many technical challenges, such as the low efficiency and poor long-term cyclability, which are mostly affected by the changes at the reactant/electrode/electrolyte interfaces. These interfacial processes involve ion/electron transfer, molecular/ion adsorption/desorption, and complex interface restructuring, which lead to irreversible modifications to the electrodes and the electrolyte. The understanding of these interfacial processes is thus crucial to provide strategies for solving those problems. In this review, we will discuss different interfacial processes at three representative interfaces, namely, solid-gas, solid-liquid, and solid-solid, in various electrochemical energy systems, and how they could influence the performance of electrochemical systems.
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Affiliation(s)
- Maoyu Wang
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon, USA.
| | - Zhenxing Feng
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon, USA.
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4
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High Surface Area VOx/TiO2/SBA-15 Model Catalysts for Ammonia SCR Prepared by Atomic Layer Deposition. Catalysts 2020. [DOI: 10.3390/catal10121386] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The mode of operation of titania-supported vanadia (VOx) catalysts for NOx abatement using ammonia selective catalytic reduction (NH3-SCR) is still vigorously debated. We introduce a new high surface area VOx/TiO2/SBA-15 model catalyst system based on mesoporous silica SBA-15 making use of atomic layer deposition (ALD) for controlled synthesis of titania and vanadia multilayers. The bulk and surface structure is characterized by X-ray diffraction (XRD), UV-vis and Raman spectroscopy, as well as X-ray photoelectron spectroscopy (XPS), revealing the presence of dispersed surface VOx species on amorphous TiO2 domains on SBA-15, forming hybrid Si–O–V and Ti–O–V linkages. Temperature-dependent analysis of the ammonia SCR catalytic activity reveals NOx conversion levels of up to ~60%. In situ and operando diffuse reflection IR Fourier transform (DRIFT) spectroscopy shows N–Hstretching modes, representing adsorbed ammonia and -NH2 and -NH intermediate structures on Bronsted and Lewis acid sites. Partial Lewis acid sites with adjacent redox sites are proposed as the active sites and desorption of product molecules as the rate-determining step at low temperature. The high NOx conversion is attributed to the presence of highly dispersed VOx species and the moderate acidity of VOx supported on TiO2/SBA-15.
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5
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Du P, Zhang X, Zhang S, Zhao Y, Zhang L, Zhang B, Yang B. CO
x
‐Resistant Oxidative Dehydrogenation of Cyclohexane Catalyzed by sp
3
@sp
2
Nanodiamonds towards Highly Selective Cyclohexene Production. ChemCatChem 2020. [DOI: 10.1002/cctc.202001380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pengfei Du
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road Dalian 116023 P.R. China
- University of Chinese Academy of Sciences 19 Yuquan Road Beijing 100049 P.R. China
| | - Xin‐Xing Zhang
- Department of Chemistry James Franck Institute and Institute for Biophysical Dynamics The University of Chicago 929 E 57th Street Chicago Illinois 60637 USA
| | - Shaoqian Zhang
- Key Lab of Chemical Lasers Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road Dalian 116023 P.R. China
| | - Yang Zhao
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road Dalian 116023 P.R. China
| | - Liyun Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016) P.R. China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016) P.R. China
| | - Bing Yang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road Dalian 116023 P.R. China
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6
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von Boehn B, Penschke C, Li X, Paier J, Sauer J, Krisponeit JO, Flege JI, Falta J, Marchetto H, Franz T, Lilienkamp G, Imbihl R. Reaction dynamics of metal/oxide catalysts: Methanol oxidation at vanadium oxide films on Rh(1 1 1) from UHV to 10−2 mbar. J Catal 2020. [DOI: 10.1016/j.jcat.2020.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Song I, Lee H, Jeon SW, Kim DH. Understanding the dynamic behavior of acid sites on TiO2-supported vanadia catalysts via operando DRIFTS under SCR-relevant conditions. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.041] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Electronic structure changes introduced by nitrogen on the N-doped VOx/TiO2 system: Consequences on partial oxidation catalysis. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Active sites of copper-complex catalytic materials for electrochemical carbon dioxide reduction. Nat Commun 2018; 9:415. [PMID: 29379087 PMCID: PMC5788987 DOI: 10.1038/s41467-018-02819-7] [Citation(s) in RCA: 312] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 01/02/2018] [Indexed: 11/08/2022] Open
Abstract
Restructuring-induced catalytic activity is an intriguing phenomenon of fundamental importance to rational design of high-performance catalyst materials. We study three copper-complex materials for electrocatalytic carbon dioxide reduction. Among them, the copper(II) phthalocyanine exhibits by far the highest activity for yielding methane with a Faradaic efficiency of 66% and a partial current density of 13 mA cm−2 at the potential of – 1.06 V versus the reversible hydrogen electrode. Utilizing in-situ and operando X-ray absorption spectroscopy, we find that under the working conditions copper(II) phthalocyanine undergoes reversible structural and oxidation state changes to form ~ 2 nm metallic copper clusters, which catalyzes the carbon dioxide-to-methane conversion. Density functional calculations rationalize the restructuring behavior and attribute the reversibility to the strong divalent metal ion–ligand coordination in the copper(II) phthalocyanine molecular structure and the small size of the generated copper clusters under the reaction conditions. The catalytic conversion of carbon dioxide into value-added products requires an understanding of the active species present under working conditions. Here, the authors discover copper-containing complexes to reversibly transform during electrocatalysis into methane-producing copper nanoclusters.
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10
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Feng Z, Ma Q, Lu J, Feng H, Elam JW, Stair PC, Bedzyk MJ. Atomic-scale cation dynamics in a monolayer VOX/α-Fe2O3 catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra18404e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A combination of in situ XAS and FTIR shows the redox-induced vanadium cation dynamics on the surfaces of Fe2O3 powders.
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Affiliation(s)
- Z. Feng
- Department of Materials Science and Engineering
- Northwestern University
- Evanston
- USA
- Chemical Sciences and Engineering Division
| | - Q. Ma
- DND-CAT
- Synchrotron Research Center
- Northwestern University
- Evanston
- USA
| | - J. Lu
- Energy Systems Division
- Argonne National Laboratory
- Lemont
- USA
- Department of Chemical Physics
| | - H. Feng
- Energy Systems Division
- Argonne National Laboratory
- Lemont
- USA
- Xi'an Modern Chemistry Research Institute
| | - J. W. Elam
- Energy Systems Division
- Argonne National Laboratory
- Lemont
- USA
| | - P. C. Stair
- Department of Chemistry
- Northwestern University
- Evanston
- USA
| | - M. J. Bedzyk
- Department of Materials Science and Engineering
- Northwestern University
- Evanston
- USA
- Department of Physics and Astronomy
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11
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Artiglia L, Agnoli S, Savio L, Pal J, Celasco E, Rocca M, Bondino F, Magnano E, Castellarin-Cudia C, Netzer FP, Granozzi G. From Vanadia Nanoclusters to Ultrathin Films on TiO2(110): Evolution of the Yield and Selectivity in the Ethanol Oxidation Reaction. ACS Catal 2014. [DOI: 10.1021/cs5008798] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Luca Artiglia
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Stefano Agnoli
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Letizia Savio
- IMEM
CNR, UOS Genova, Via Dodecaneso 33, I-16146 Genova, Italy
| | - Jagriti Pal
- IMEM
CNR, UOS Genova, Via Dodecaneso 33, I-16146 Genova, Italy
- Department
of Physics, University of Genova, Via Dodecaneso 33, I-16146 Genova, Italy
| | - Edvige Celasco
- IMEM
CNR, UOS Genova, Via Dodecaneso 33, I-16146 Genova, Italy
- Department
of Physics, University of Genova, Via Dodecaneso 33, I-16146 Genova, Italy
| | - Mario Rocca
- IMEM
CNR, UOS Genova, Via Dodecaneso 33, I-16146 Genova, Italy
- Department
of Physics, University of Genova, Via Dodecaneso 33, I-16146 Genova, Italy
| | - Federica Bondino
- IOM CNR, LABORATORIO
TASC, S.S. 14 Km. 163, 5, I-34149 Basovizza, TS, Italy
| | - Elena Magnano
- IOM CNR, LABORATORIO
TASC, S.S. 14 Km. 163, 5, I-34149 Basovizza, TS, Italy
| | - Carla Castellarin-Cudia
- Surface
and Interface Physics, Institute of Physics, Karl-Franzens University Graz, A-8010 Graz, Austria
| | - Falko P. Netzer
- Surface
and Interface Physics, Institute of Physics, Karl-Franzens University Graz, A-8010 Graz, Austria
| | - Gaetano Granozzi
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
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12
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Carrero CA, Schloegl R, Wachs IE, Schomaecker R. Critical Literature Review of the Kinetics for the Oxidative Dehydrogenation of Propane over Well-Defined Supported Vanadium Oxide Catalysts. ACS Catal 2014. [DOI: 10.1021/cs5003417] [Citation(s) in RCA: 367] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- C. A. Carrero
- Department
of Chemistry, Technical University of Berlin, Straße des 17. Juni 124, D-10623 Berlin, Germany
- Department
of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - R. Schloegl
- Department
of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Department
of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - I. E. Wachs
- Operando
Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical
Engineering, Lehigh University, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - R. Schomaecker
- Department
of Chemistry, Technical University of Berlin, Straße des 17. Juni 124, D-10623 Berlin, Germany
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13
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Feng Z, McBriarty ME, Mane AU, Lu J, Stair PC, Elam JW, Bedzyk MJ. Redox-driven atomic-scale changes in mixed catalysts: VOX/WOX/α-TiO2 (110). RSC Adv 2014. [DOI: 10.1039/c4ra14140g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
X-ray study of vanadium–tungsten mixed-monolayer-oxide catalysts grown on the rutile α-TiO2 (110) single crystal surface shows redox behavior not observed for lone supported vanadium or tungsten oxides.
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Affiliation(s)
- Z. Feng
- Department of Materials Science and Engineering
- Northwestern University
- Evanston, USA
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
| | - M. E. McBriarty
- Department of Materials Science and Engineering
- Northwestern University
- Evanston, USA
| | - A. U. Mane
- Energy Systems Division
- Argonne National Laboratory
- Lemont, USA
| | - J. Lu
- Energy Systems Division
- Argonne National Laboratory
- Lemont, USA
| | - P. C. Stair
- Department of Chemistry
- Northwestern University
- Evanston, USA
| | - J. W. Elam
- Energy Systems Division
- Argonne National Laboratory
- Lemont, USA
| | - M. J. Bedzyk
- Department of Materials Science and Engineering
- Northwestern University
- Evanston, USA
- Department of Physics and Astronomy
- Northwestern University
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14
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Artiglia L, Agnoli S, Vittadini A, Verdini A, Cossaro A, Floreano L, Granozzi G. Atomic Structure and Special Reactivity Toward Methanol Oxidation of Vanadia Nanoclusters on TiO2(110). J Am Chem Soc 2013; 135:17331-8. [DOI: 10.1021/ja404889v] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Luca Artiglia
- Department
of Chemical Sciences, University of Padua, I-35131 Padova, Italy
| | - Stefano Agnoli
- Department
of Chemical Sciences, University of Padua, I-35131 Padova, Italy
| | | | | | - Albano Cossaro
- CNR-IOM, TASC
National Laboratory, I-34149, Trieste, Italy
| | - Luca Floreano
- CNR-IOM, TASC
National Laboratory, I-34149, Trieste, Italy
| | - Gaetano Granozzi
- Department
of Chemical Sciences, University of Padua, I-35131 Padova, Italy
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