1
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Xie E, Wang X. Fine-Tuning Dual Single-Atom Metal Sites on Graphene toward Enhanced Oxygen Reduction Reaction Activity. J Phys Chem Lett 2023; 14:9392-9402. [PMID: 37823826 DOI: 10.1021/acs.jpclett.3c02273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The oxygen reduction reaction (ORR) remains at the forefront of research in diverse energy and sustainability domains. While graphene-supported single-atom catalysts (SACs) have garnered attention for optimizing ORR efficiency, tailoring the interactions between adjacent single-atom sites presents intricate challenges. In this study, we leveraged density functional theory (DFT) calculations and cutting-edge machine learning (ML) techniques to explore 144 graphene-supported SACs, featuring interacting M1-N4 and M2-N4 moieties (M1, M2 = Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag Ir, Pt, Au), denoted as M1-M2. By tailoring these interactions, we discovered 13 exceptional SACs outperforming the benchmark catalyst Fe(OH)-N4, including the best-performing Fe-Pd and several non-noble-metal SACs like Fe-Ag, Ag-Cu, and Ag-Ag. Venturing further, our ML models effectively capture the correlation between single-atom metal properties and overpotential, offering tools for rational electrocatalyst design. Our study illuminates the path to efficient SAC-catalyzed ORR, fostering a sustainable, energy-efficient future.
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Affiliation(s)
- Evan Xie
- Deerfield Academy, 7 Boyden Lane, Deerfield, Massachusetts 01342, United States
| | - Xijun Wang
- Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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2
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Sarfaraz S, Yar M, Hussain A, Lakhani A, Gulzar A, Ans M, Rashid U, Hussain M, Muhammad S, Bayach I, Sheikh NS, Ayub K. Metallofullerenes as Robust Single-Atom Catalysts for Adsorption and Dissociation of Hydrogen Molecules: A Density Functional Study. ACS OMEGA 2023; 8:36493-36505. [PMID: 37810689 PMCID: PMC10552115 DOI: 10.1021/acsomega.3c05477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023]
Abstract
Hydrogen is currently considered as the best alternative for traditional fuels due to its sustainable and ecofriendly nature. Additionally, hydrogen dissociation is a critical step in almost all hydrogenation reactions, which is crucial in industrial chemical production. A cost-effective and efficient catalyst with favorable activity for this step is highly desirable. Herein, transition-metal-doped fullerene (TM@C60) complexes are designed and investigated as single-atom catalysts for the hydrogen splitting process. Interaction energy analysis (Eint) is also carried out to demonstrate the stability of designed TM@C60 metallofullerenes, which reveals that all the designed complexes have higher thermodynamic stability. Furthermore, among all the studied metallofullerenes, the best catalytic efficiency for hydrogen dissociation is seen for the Sc@C60 catalyst Ea = 0.13 eV followed by the V@C60 catalyst Ea = 0.19 eV. The hydrogen activation and dissociation processes over TM@C60 metallofullerenes is further elaborated by analyzing charge transfer via the natural bond orbital and electron density difference analyses. Additionally, quantum theory of atoms in molecule analysis is carried out to investigate the nature of interatomic interactions between hydrogen molecules and TMs@C60 metallofullerenes. Overall, results of the current study declare that the Sc@C60 catalyst can act as a low cost, highly efficient, and noble metal-free single-atom catalyst to efficiently catalyze hydrogen dissociation reaction.
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Affiliation(s)
- Sehrish Sarfaraz
- Department
of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Muhammad Yar
- Department
of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Ajaz Hussain
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60800, Pakistan
| | - Ahmed Lakhani
- Department
of Biomedical and Health Sciences, Calumet
College of St. Joseph, 2400, New York Avenue, Whiting, Indiana 46394, United States
| | - Adnan Gulzar
- Center
of Theoretical Chemistry, Ruhr-Universitat
Bochum, Bochum 44780, Germany
| | - Muhammad Ans
- Department
of Chemistry, University of Agriculture
Faisalabad, Faisalabad 38000, Pakistan
| | - Umer Rashid
- Department
of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Masroor Hussain
- Department
of Data Science, Ghulam Ishaq Khan Institute
of Engineering Sciences and Technology, Topi 23460, KPK, Pakistan
| | - Shabbir Muhammad
- Department
of Physics, College of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Imene Bayach
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Nadeem S. Sheikh
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Khurshid Ayub
- Department
of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
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3
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Yang Y, Lin J, Li X, Chen Z, Lin Y, Xu M, Li W. High power density output and durability of microbial fuel cells enabled by dispersed cobalt nanoparticles on nitrogen-doped carbon as the cathode electrocatalyst. Phys Chem Chem Phys 2023; 25:25205-25213. [PMID: 37724059 DOI: 10.1039/d3cp02582a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
To endow microbial fuel cells (MFCs) with low cost, long-term stability and high-power output, a novel cobalt-based cathode electrocatalyst (Nano-Co@NC) is synthesized from a polygonal metal-organic framework ZIF-67. After calcining the resultant ZIF-67, the as-synthesized Nano-Co@NC is characteristic of cobalt nanoparticles (Nano-Co) embedded in nitrogen-doped carbon (NC) that inherits the morphology of ZIF-67 with a large surface area. The Nano-Co particles that are highly dispersed and firmly fixed on NC not only ensure electrocatalytic activity of Nano-Co@NC toward the oxygen reduction reaction on the cathode, but also inhibit the growth of non-electrogenic bacteria on the anode. Consequently, the MFC using Nano-Co@NC as the cathode electrocatalyst demonstrates excellent performance, delivering a comparable initial power density and exhibiting far better durability than that using Pt/C (20 wt%) as the cathode electrocatalyst. The low cost and the excellent performance of Nano-Co@NC make it promising for MFCs to be used in practice.
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Affiliation(s)
- Yuxian Yang
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Jialuo Lin
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Xin Li
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Zhuoyue Chen
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Yingyu Lin
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Mengqing Xu
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
- National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs, Engineering Research Center of MTEES (Ministry of Education), and Key Lab. of ETESPG(GHEI), South China Normal University, Guangzhou 510006, Guangzhou, China
| | - Weishan Li
- School of Chemistry, South China Normal University, Guangzhou 510006, China.
- National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs, Engineering Research Center of MTEES (Ministry of Education), and Key Lab. of ETESPG(GHEI), South China Normal University, Guangzhou 510006, Guangzhou, China
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4
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Huo J, Shen Z, Cao X, Li L, Zhao Y, Liu H, Wang G. Macro/Micro-Environment Regulating Carbon-Supported Single-Atom Catalysts for Hydrogen/Oxygen Conversion Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202394. [PMID: 35853722 DOI: 10.1002/smll.202202394] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Single-atom catalysts (SACs) have attracted tremendous research interest due to their unique atomic structure, maximized atom utilization, and remarkable catalytic performance. Among the SACs, the carbon-supported SACs have been widely investigated due to their easily controlled properties of the carbon substrates, such as the tunable morphologies, ordered porosity, and abundant anchoring sites. The electrochemical performance of carbon-supported SACs is highly related to the morphological structure of carbon substrates (macro-environment) and the local coordination environments of center metals (micro-environment). This review aims to provide a comprehensive summary on the macro/micro-environment regulating carbon-supported SACs for highly efficient hydrogen/oxygen conversion reactions. The authors first summarize the macro-environment engineering strategies of carbon-supported SACs with altered specific surface areas and porous properties of the carbon substrates, facilitating the mass diffusion kinetics and structural stability. Then the micro-environment engineering strategies of carbon-supported SACs are discussed with the regulated atomic structure and electronic structure of metal centers, boosting the catalytic performance. Insights into the correlation between the co-boosted effect from the macro/micro-environments and catalytic activity for hydrogen/oxygen conversion reactions are summarized and discussed. Finally, the challenges and perspectives are addressed in building highly efficient carbon-supported SACs for practical applications.
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Affiliation(s)
- Juanjuan Huo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Ziyan Shen
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Xianjun Cao
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Lu Li
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Yufei Zhao
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Hao Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia
| | - Guoxiu Wang
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia
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Shah SSA, Najam T, Bashir MS, Javed MS, Rahman AU, Luque R, Bao SJ. Identification of Catalytic Active Sites for Durable Proton Exchange Membrane Fuel Cell: Catalytic Degradation and Poisoning Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106279. [PMID: 35338585 DOI: 10.1002/smll.202106279] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Recent progress in synthetic strategies, analysis techniques, and computational modeling assist researchers to develop more active catalysts including metallic clusters to single-atom active sites (SACs). Metal coordinated N-doped carbons (M-N-C) are the most auspicious, with a large number of atomic sites, markedly performing for a series of electrochemical reactions. This perspective sums up the latest innovative and computational comprehension, while giving credit to earlier/pioneering work in carbonaceous assembly materials towards robust electrocatalytic activity for proton exchange membrane fuel cells via inclusive performance assessment of the oxygen reduction reaction (ORR). M-Nx -Cy are exclusively defined active sites for ORR, so there is a unique possibility to intellectually design the relatively new catalysts with much improved activity, selectivity, and durability. Moreover, some SACs structures provide better performance in fuel cells testing with long-term durability. The efforts to understand the connection in SACs based M-Nx -Cy moieties and how these relate to catalytic ORR performance are also conveyed. Owing to comprehensive practical application in the field, this study has covered very encouraging aspects to the current durability status of M-N-C based catalysts for fuel cells followed by degradation mechanisms such as macro-, microdegradation, catalytic poisoning, and future challenges.
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Affiliation(s)
- Syed Shoaib Ahmad Shah
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
| | - Tayyaba Najam
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Muhammad Sohail Bashir
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Aziz-Ur Rahman
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Rafael Luque
- Departamento de Química Orgánica Universidad de Córdoba, Edificio Marie Curie (C-3), Campus de Rabanales, Ctra. Nnal. IV-A, Km 396, Cordoba, E14014, Spain
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str, Moscow, 117198, Russian Federation
| | - Shu-Juan Bao
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
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6
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Zhang C, Guo H, Gao Y, Gong Y, Jin C, He J. Controllable synthesis of Co3W3N supporting on N-doped GO as electrocatalysts for oxygen reduction reaction. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Tomboc GM, Kim T, Jung S, Yoon HJ, Lee K. Modulating the Local Coordination Environment of Single-Atom Catalysts for Enhanced Catalytic Performance in Hydrogen/Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105680. [PMID: 35102698 DOI: 10.1002/smll.202105680] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Single-atom catalysts (SACs) hold the promise of utilizing 100% of the participating atoms in a reaction as active catalytic sites, achieving a remarkable boost in catalytic efficiency. Thus, they present great potential for noble metal-based electrochemical application systems, such as water electrolyzers and fuel cells. However, their practical applications are severely hindered by intrinsic complications, namely atom agglomeration and relocation, originating from the uncontrollably high surface energy of isolated single-atoms (SAs) during postsynthetic treatment processes or catalytic reactions. Extensive efforts have been made to develop new methodologies for strengthening the interactions between SAs and supports, which could ensure the desired stability of the active catalytic sites and their full utilization by SACs. This review covers the recent progress in SACs development while emphasizing the association between the regulation of coordination environments (e.g., coordination atoms, numbers, sites, structures) and the electrocatalytic performance of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The crucial role of coordination chemistry in modifying the intrinsic properties of SACs and manipulating their metal-loading, stability, and catalytic properties is elucidated. Finally, the future challenges of SACS development and the industrial outlook of this field are discussed.
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Affiliation(s)
- Gracita M Tomboc
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Taekyung Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Sangmin Jung
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Hyo Jae Yoon
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
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8
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Hasija V, Patial S, Raizada P, Aslam Parwaz Khan A, Asiri AM, Van Le Q, Nguyen VH, Singh P. Covalent organic frameworks promoted single metal atom catalysis: Strategies and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214298] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Chen Y, Sun F, Tang Q. The active structure of p-block SnNC single-atom electrocatalysts for the oxygen reduction reaction. Phys Chem Chem Phys 2022; 24:27302-27311. [DOI: 10.1039/d2cp03362c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The active structure and activity origin of intriguing SnNC single-atom catalysts in the oxygen reduction reaction are rationalized by theoretical simulations.
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Affiliation(s)
- Yuping Chen
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Fang Sun
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Qing Tang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
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10
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Boron compounds for catalytic applications. ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Singh B, Gawande MB, Kute AD, Varma RS, Fornasiero P, McNeice P, Jagadeesh RV, Beller M, Zbořil R. Single-Atom (Iron-Based) Catalysts: Synthesis and Applications. Chem Rev 2021; 121:13620-13697. [PMID: 34644065 DOI: 10.1021/acs.chemrev.1c00158] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supported single-metal atom catalysts (SACs) are constituted of isolated active metal centers, which are heterogenized on inert supports such as graphene, porous carbon, and metal oxides. Their thermal stability, electronic properties, and catalytic activities can be controlled via interactions between the single-metal atom center and neighboring heteroatoms such as nitrogen, oxygen, and sulfur. Due to the atomic dispersion of the active catalytic centers, the amount of metal required for catalysis can be decreased, thus offering new possibilities to control the selectivity of a given transformation as well as to improve catalyst turnover frequencies and turnover numbers. This review aims to comprehensively summarize the synthesis of Fe-SACs with a focus on anchoring single atoms (SA) on carbon/graphene supports. The characterization of these advanced materials using various spectroscopic techniques and their applications in diverse research areas are described. When applicable, mechanistic investigations conducted to understand the specific behavior of Fe-SACs-based catalysts are highlighted, including the use of theoretical models.
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Affiliation(s)
- Baljeet Singh
- CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, 3810-193 Portugal
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna 431213, Maharashtra, India
| | - Arun D Kute
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna 431213, Maharashtra, India
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, 779 00 Olomouc, Czech Republic
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, Center for Energy, Environment and Transport Giacomo Ciamiciam, INSTM Trieste Research Unit and ICCOM-CNR Trieste Research Unit, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Peter McNeice
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Rajenahally V Jagadeesh
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany.,Department of Chemistry, REVA University, Bangalore 560064, India
| | - Matthias Beller
- Leibniz-Institut für Katalyse e. V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, 779 00 Olomouc, Czech Republic.,CEET Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
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12
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Li Z, Wei W, Li H, Li S, Leng L, Zhang M, Horton JH, Wang D, Sun W, Guo C, Wu W, Wang J. Low-Temperature Synthesis of Single Palladium Atoms Supported on Defective Hexagonal Boron Nitride Nanosheet for Chemoselective Hydrogenation of Cinnamaldehyde. ACS NANO 2021; 15:10175-10184. [PMID: 34101427 DOI: 10.1021/acsnano.1c02094] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metal-support interactions are of great importance in determining the support-activity in heterogeneous catalysis. Here we report a low-temperature synthetic strategy to create atomically dispersed palladium atoms anchored on defective hexagonal boron nitride (h-BN) nanosheet. Density functional theory (DFT) calculations suggest that the nitrogen-containing B vacancy can provide stable anchoring sites for palladium atoms. The presence of single palladium atoms was confirmed by spherical aberration correction electron microscopy and extended X-ray absorption fine structure measurement. This catalyst showed exceptional efficiency in chemoselective hydrogenation of cinnamaldehyde, along with excellent recyclability, sintering-resistant ability, and scalability. We anticipate this synthetic approach for the synthesis of high-quality SACs based on h-BN support is amenable to large-scale production of bench-stable catalysts with maximum atom efficiency for industrial applications.
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Affiliation(s)
- Zhijun Li
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
| | - Wei Wei
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
| | - Honghong Li
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
| | - Shaohan Li
- Jiangsu Province Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing, 211189, PR China
| | - Leipeng Leng
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
| | - Mingyang Zhang
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
| | - J Hugh Horton
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
- Department of Chemistry, Queen's University, Kingston, K7L 3N6, Canada
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, PR China
| | - Weiwei Sun
- Jiangsu Province Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing, 211189, PR China
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, PR China
| | - Chunmu Guo
- National Center for International Research on Catalytic Technology, Heilongjiang University, Harbin, 150080, PR China
| | - Wei Wu
- National Center for International Research on Catalytic Technology, Heilongjiang University, Harbin, 150080, PR China
| | - Jun Wang
- Joint International Research Laboratory of Advanced Chemical Catalytic Materials & Surface Science, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, PR China
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Injongkol Y, Intayot R, Yodsin N, Montoya A, Jungsuttiwong S. Mechanistic insight into catalytic carbon dioxide hydrogenation to formic acid over Pt-doped boron nitride nanosheets. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Stabilizing Co, Ni and Cu on the h-BN surface: Using O O bond activation to probe their performance as single atom catalyst. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.10.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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15
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Wang W, Li D, Cui T. Carbon and Oxygen Coordinating Atoms Adjust Transition Metal Single-Atom Catalysts Based On Boron Nitride Monolayers for Highly Efficient CO 2 Electroreduction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18934-18943. [PMID: 33852266 DOI: 10.1021/acsami.1c04580] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although single-atom catalysts (SACs) with transition metal-nitrogen complexes have been studied widely, investigations that use light-element atoms to adjust the coordination environment of the central metal atoms in metal-nitrogen complexes are still rare but show enormous potential for various electrocatalytic reactions. Herein, we design novel SACs based on monolayer BN adjusted by B, C, or O coordinating atoms as catalysts for the CO2 reduction reaction (CRR). These SACs are denoted as M@BN_D (BN = monolayer boron nitride; D = B, C, or O atom; M = Co, Cr, Fe, Mn, Mo, Pd, Pt, Ru, V, W, Ni, Zn, Zr, Ag, Au, Cu, or Ti atom) and are investigated as CRR catalysts using density functional theory calculations. Among these structures, we identified some promising candidate catalysts for CRR with impressive low limiting potential (UL): Pt@BN_C with a UL of -0.18 for the product CH4 and Co@BN_C and Au@BN_O with UL of -0.41 and -0.37 V, respectively, for the product CH3OH. In particular, Pt@BN_C shows a remarkable reduction in UL for the product CH4 compared to any existing catalysts, synthesized or predicted. In addition, the ultralow UL for CRR on Pt@BN_C was derived from the unique bonding feature between the single metal atom and adsorbates and the modulation of ionic interactions induced by the coordination effect of the C atom.
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Affiliation(s)
- Wenjie Wang
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China
| | - Da Li
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China
| | - Tian Cui
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, P.R. China
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16
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Ling F, Xia W, Li L, Zhou X, Luo X, Bu Q, Huang J, Liu X, Kang W, Zhou M. Single Transition Metal Atom Bound to the Unconventional Phase of the MoS 2 Monolayer for Catalytic Oxygen Reduction Reaction: A First-Principles Study. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17412-17419. [PMID: 33844514 DOI: 10.1021/acsami.0c21597] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Supported single-atom catalysts (SACs) have received a lot of attention due to their super-high atom utilization and outstanding catalytic performance. However, the instability of the supported transition-metal (TM) atoms hampers their widespread applications. Exploration of an appropriate substrate to stabilize the supported single atom is crucial for the future implementation of SACs. In recent years, two-dimensional materials have been proposed as possible substrates due to their large specific surface areas, but their chemically inert surfaces are difficult to stabilize TM atoms without defecting or doping. Herein, by means of systematic first-principles calculations, we demonstrate that the defect-free MoS2 monolayer in the unconventional phase (1T') can effectively immobilize single TM atoms owing to its unique electrophilic property as compared to the conventional 2H phase. As a prototype probe, we investigated oxygen reduction reaction (ORR) catalyzed by a total of 21 single TM atoms stabilized on 1T'-MoS2 and successfully screened out two candidates, Cu and Pd@1T'-MoS2, which have a low overpotential of 0.41 and 0.32 V respectively, outperforming most of the previously reported ORR catalysts. Furthermore, we reveal that the adsorption energy of the ORR intermediate, *OH, provides an excellent descriptor to assess the ORR activity, which is further determined by the d-band center of the supported TM adatoms, thus being a great advantage for future design of stable and high-performance SACs.
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Affiliation(s)
- Faling Ling
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Weidi Xia
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Li Li
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Xianju Zhou
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Xu Luo
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Qingzhou Bu
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Jiacai Huang
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Xiaoqing Liu
- College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Wei Kang
- College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Miao Zhou
- College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, P. R. China
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17
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Qin Y, Yang M, Deng C, Shen W, He R, Li M. Theoretical insight into single Rh atoms anchored on N-doped γ-graphyne as an excellent bifunctional electrocatalyst for the OER and ORR: electronic regulation of graphitic nitrogen. NANOSCALE 2021; 13:5800-5808. [PMID: 33710226 DOI: 10.1039/d0nr07513b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reducing the overpotential and increasing the reaction rate, which are respectively determined by the thermodynamics and kinetics of electrocatalysis, are the keys to obtaining high-performance bifunctional electrocatalysts for the OER/ORR. Herein, six late-transition metals (Ru, Rh, Pd, Os, Ir, and Pt) anchored on γ-GY and graphitic N doped γ-GY substrates are screened as electrocatalysts for the OER and ORR via density functional theory, and the effects of electronic regulation due to the presence of graphitic N on the thermodynamics and kinetics of electrocatalysis are investigated in detail. Among the six γ-GY@TM candidates, only γ-GY@Rh exhibits excellent OER activity, with an overpotential of 0.42 V. Furthermore, graphitic N doped graN-γ-GY@Rh shows outstanding bifunctional electrocatalytic activity, with overpotentials of 0.27 V for the OER and 0.33 V for the ORR, which are remarkably superior to the values of 0.43 V for RuO2 and 0.45 V for noble-metal Pt electrocatalysts. The present results present some of the lowest overpotentials for OER/ORR electrocatalysts given by theoretical studies to date. From a kinetics point of view, N-doping also remarkably reduces the activation energy barriers of the catalytic rate-limiting steps of the OER and ORR, accelerating the reaction processes and significantly improving the conductivity. Our work provides a theoretical strategy for designing high-efficiency bifunctional OER/ORR electrocatalysts based on γ-GY materials.
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Affiliation(s)
- Youcheng Qin
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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18
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Molavi R, Safaiee R, Sheikhi M, Hassani N. Theoretical perspective on CO oxidation over small cobalt oxide clusters. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Zhang S, Chen M, Zhao X, Cai J, Yan W, Yen JC, Chen S, Yu Y, Zhang J. Advanced Noncarbon Materials as Catalyst Supports and Non-noble Electrocatalysts for Fuel Cells and Metal–Air Batteries. ELECTROCHEM ENERGY R 2021. [DOI: 10.1007/s41918-020-00085-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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An efficient multifunctional catalyst for one-pot synthesis of methyl isobutyl ketone: Phosphor-doped h-BN with adjustable acid-base property as support. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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21
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Ma Y, Jin F, Hu YH. Bifunctional electrocatalysts for oxygen reduction and oxygen evolution: a theoretical study on 2D metallic WO 2-supported single atom (Fe, Co, or Ni) catalysts. Phys Chem Chem Phys 2021; 23:13687-13695. [PMID: 34125123 DOI: 10.1039/d1cp00540e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalysts play a critical role in the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) for energy storage, conversion, and utilization. Herein, first-principles density functional theory (DFT) calculations demonstrated that single-metal-atom (Fe, Co, or Ni) sites can bind to the surface of 2D WO2, enhancing the adsorption of intermediates involved in the OER/ORR. Furthermore, it was found that the single-metal-atom-doped 2D WO2 achieves the smallest OER and ORR overpotentials of 0.42 V and 0.40 V, respectively, which are comparable to those of IrO2 or Pt-based catalysts. This predicts the excellent OER/ORR catalytic activities of the single-metal-atom (Fe, Co, or Ni) doped 2D WO2, which would be a promising bifunctional catalyst for fuel cells, water splitting, and metal-air batteries.
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Affiliation(s)
- Yuli Ma
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fangming Jin
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931, USA.
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22
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Zhuo HY, Zhang X, Liang JX, Yu Q, Xiao H, Li J. Theoretical Understandings of Graphene-based Metal Single-Atom Catalysts: Stability and Catalytic Performance. Chem Rev 2020; 120:12315-12341. [PMID: 33112608 DOI: 10.1021/acs.chemrev.0c00818] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Research on heterogeneous single-atom catalysts (SACs) has become an emerging frontier in catalysis science because of their advantages in high utilization of noble metals, precisely identified active sites, high selectivity, and tunable activity. Graphene, as a one-atom-thick two-dimensional carbon material with unique structural and electronic properties, has been reported to be a superb support for SACs. Herein, we provide an overview of recent progress in investigations of graphene-based SACs. Among the large number of publications, we will selectively focus on the stability of metal single-atoms (SAs) anchored on different sites of graphene support and the catalytic performances of graphene-based SACs for different chemical reactions, including thermocatalysis and electrocatalysis. We will summarize the fundamental understandings on the electronic structures and their intrinsic connection with catalytic properties of graphene-based SACs, and also provide a brief perspective on the future design of efficient SACs with graphene and graphene-like materials.
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Affiliation(s)
- Hong-Ying Zhuo
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Xin Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Jin-Xia Liang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Qi Yu
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong 723001, China
| | - Hai Xiao
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China.,Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
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23
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Bai F, Qu X, Wang J, Chen X, Yang W. Confinement Catalyst of Co 9S 8@N-Doped Carbon Derived from Intercalated Co(OH) 2 Precursor and Enhanced Electrocatalytic Oxygen Reduction Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33740-33750. [PMID: 32633487 DOI: 10.1021/acsami.0c08267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oxygen reduction reaction (ORR) is an important cathode reaction in fuel cells and metal-air batteries. Composites of transition-metal sulfides (TMSs) and nitrogen-doped carbon (NC) are promising alternative ORR catalysts because of their high catalytic activity. However, the agglomeration of TMS particles limits practical applications. Here, a confinement catalyst composed of Co9S8@NC with a flower-like morphology was derived from metanilic intercalated Co(OH)2 through interlayer-confined carbonation accompanied with host-layer sulfidation. The surface of the Co9S8 particles is covered with a few layers of nitrogen-doped graphene, which can prevent the Co9S8 particles from agglomeration and also produce catalytic activity affected by internal Co9S8. Thus, the Co9S8@NC material achieves excellent ORR performance with a half-wave potential of 0.861 VRHE. In addition, an oxide layer on the surface of Co9S8@NC is fabricated shortly after the ORR starts. Further tests and density functional theory calculations indicated that this cobalt oxide layer can increase the electrochemically active area of Co9S8@NC as well as reduce the ORR energy barrier, thereby providing more catalytic active sites and enhancing the intrinsic catalytic activity, thus achieving a self-activation effect during the electrochemical reaction process.
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Affiliation(s)
- Fan Bai
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xin Qu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jun Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xu Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wensheng Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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24
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Hassan J, Ikram M, Ul-Hamid A, Imran M, Aqeel M, Ali S. Application of Chemically Exfoliated Boron Nitride Nanosheets Doped with Co to Remove Organic Pollutants Rapidly from Textile Water. NANOSCALE RESEARCH LETTERS 2020; 15:75. [PMID: 32266606 PMCID: PMC7138897 DOI: 10.1186/s11671-020-03315-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/30/2020] [Indexed: 05/26/2023]
Abstract
Two-dimensional layered materials doped with transition metals exhibit enhanced magnetization and improved catalytic stability during water treatment leading to potential environmental applications across several industrial sectors. In the present study, cobalt (Co)-doped boron nitride nanosheets (BN-NS) were explored for such an application. Chemical exfoliation process was used to exfoliate BN-NS and the hydrothermal route was adopted to incorporate Co dopant in various concentrations (e.g., 2.5, 5, 7.5, and 10 wt%). X-ray diffraction (XRD) study indicated that crystallinity improved upon doping with the formation of a hexagonal phase of the synthesized material. Selected area electron diffraction (SAED) confirmed enhanced crystallinity, which corroborates XRD results. Interlayer spacing was evaluated through a high-resolution transmission electron microscope (HR-TEM) equipped with Gatan digital micrograph software. Compositional and functional group analysis was undertaken with energy dispersive X-ray (EDS) and Fourier transform infrared (FTIR) spectroscopy, respectively. Field emission scanning electron microscope (FE-SEM) and HR-TEM were utilized to probe surface morphologies of prepared samples. Bonding modes in the sample were identified through Raman analysis. Optical properties were examined using UV-vis spectroscopy. Photoluminescence spectra were acquired to estimate the separation and recombination of excitons. Magnetic properties were studied by means of hysteresis loop acquired using VSM measurements. Methylene blue dye was degraded with as-prepared host and doped nanosheets used as catalysts and investigated through absorption spectra ranging from 250 to 800 nm. The experimental results of this study indicate that Co-doped BN-NS showed enhanced magnetic properties and can be used to degrade dyes present as an effluent in industrial wastewater.
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Affiliation(s)
- J. Hassan
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M. Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - A. Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261 Saudi Arabia
| | - M. Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029 China
| | - M. Aqeel
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, Punjab 54000 Pakistan
| | - S. Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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25
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Shi F, Zhu X, Yang W. Micro-nanostructural designs of bifunctional electrocatalysts for metal-air batteries. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63514-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Li Q, Zhang T, Yu X, Wu X, Zhang X, Lu Z, Yang X, Huang Y, Li L. Isolated Au Atom Anchored on Porous Boron Nitride as a Promising Electrocatalyst for Oxygen Reduction Reaction (ORR): A DFT Study. Front Chem 2019; 7:674. [PMID: 31681728 PMCID: PMC6811612 DOI: 10.3389/fchem.2019.00674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 09/25/2019] [Indexed: 11/13/2022] Open
Abstract
The development of efficient, stable, and low-cost catalytic material for the oxygen reduction reaction (ORR) is currently highly desirable but challenging. In this work, based on first-principles calculation, the stabilities, catalytic activities and catalytic mechanisms of isolated Au atom supported on defective porous BN (p-BN) have been studied in detail. The results reveal that the defective p-BN anchor Au atom strongly to ensure the stability of Au/p-BN. Based on frontier molecular orbital and charge-density analysis, isolated Au atom supported on porous BN with VN defect (Au/p-BN-VN) is an effective ORR catalyst. Especially, the low barriers of the formation (0.38 eV) and dissociation (0.31 eV) of *OOH and the instability of H2O2 on Au/p-BN-VN catalyst suggest that ORR proceeds via 4-electron pathway. Along the favorable pathway, the reduction of O2 to *OOH is the rate-limiting step with the largest activation barrier of 0.38 eV and the maximum free energy change is 1.88 eV. Our results provide a useful guidance for the design and fabrication of new Au-base catalyst with high-efficiency and are beneficial for the developing of novel isolated metal atom catalysts for ORR.
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Affiliation(s)
- Qiaoling Li
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Tianran Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Xiaofei Yu
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Xiaoyu Wu
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Xinghua Zhang
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Zunming Lu
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Xiaojing Yang
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Yang Huang
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
| | - Lanlan Li
- Key Lab for Micro- and Nano-Scale Boron Nitride Materials in Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
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27
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Zhu G, Liu F, Wang Y, Wei Z, Wang W. Systematic exploration of N,C coordination effects on the ORR performance of Mn–Nx doped graphene catalysts based on DFT calculations. Phys Chem Chem Phys 2019; 21:12826-12836. [DOI: 10.1039/c9cp02155h] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five-coordination Mn–Nx experiences a significant increase in ORR catalytic activity due to its moderate binding ability compared with Mn–N4 and Mn–N3.
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Affiliation(s)
- Guangqi Zhu
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Fan Liu
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yicheng Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Zidong Wei
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Wei Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Key Laboratory of Metal Fuel Cell of Sichuan Province
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