1
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Qiang F, Feng J, Wang H, Yu J, Shi J, Huang M, Shi Z, Liu S, Li P, Dong L. Oxygen Engineering Enables N-Doped Porous Carbon Nanofibers as Oxygen Reduction/Evolution Reaction Electrocatalysts for Flexible Zinc–Air Batteries. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00164] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fuqiang Qiang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jianguang Feng
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Huanlei Wang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jianhua Yu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jing Shi
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Minghua Huang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zhicheng Shi
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Shuai Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Ping Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Lifeng Dong
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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2
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Cherif M, Dodelet JP, Zhang G, Glibin VP, Sun S, Vidal F. Non-PGM Electrocatalysts for PEM Fuel Cells: A DFT Study on the Effects of Fluorination of FeN x-Doped and N-Doped Carbon Catalysts. Molecules 2021; 26:molecules26237370. [PMID: 34885951 PMCID: PMC8659044 DOI: 10.3390/molecules26237370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 11/19/2022] Open
Abstract
Fluorination is considered as a means of reducing the degradation of Fe/N/C, a highly active FeNx-doped disorganized carbon catalyst for the oxygen reduction reaction (ORR) in PEM fuel cells. Our recent experiments have, however, revealed that fluorination poisons the FeNx moiety of the Fe/N/C catalytic site, considerably reducing the activity of the resulting catalyst to that of carbon only doped with nitrogen. Using the density functional theory (DFT), we clarify in this work the mechanisms by which fluorine interacts with the catalyst. We studied 10 possible FeNx site configurations as well as 2 metal-free sites in the absence or presence of fluorine molecules and atoms. When the FeNx moiety is located on a single graphene layer accessible on both sides, we found that fluorine binds strongly to Fe but that two F atoms, one on each side of the FeNx plane, are necessary to completely inhibit the catalytic activity of the FeNx sites. When considering the more realistic model of a stack of graphene layers, only one F atom is needed to poison the FeNx moiety on the top layer since ORR hardly takes place between carbon layers. We also found that metal-free catalytic N-sites are immune to poisoning by fluorination, in accordance with our experiments. Finally, we explain how most of the catalytic activity can be recovered by heating to 900 °C after fluorination. This research helps to clarify the role of metallic sites compared to non-metallic ones upon the fluorination of FeNx-doped disorganized carbon catalysts.
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3
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Zhang J, Cao D, Liu H, Wang F, Liang L, Liu C, Hao Q, Li Y. Boron Coordination Effect in Ni-N x Doped Graphene Catalysts on the ORR Performance Based on DFT Calculations. Chemphyschem 2021; 23:e202100692. [PMID: 34729887 DOI: 10.1002/cphc.202100692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/02/2021] [Indexed: 11/11/2022]
Abstract
The coordination atoms of metal active site in transition metal N-doped carbon single atom electrocatalysts play a vital role in dominating the catalytic performance of oxygen reduction reaction (ORR) at the cathode of fuel cells or metal-air cells. In view of weak adsorption ability of Ni active site in NiN4 -C catalysts to oxygen intermediate states, herein we introduce boron atoms with smaller electronegativity than N and C atoms to modulate the local coordination environment and electronic structures of Ni site. First-principles density functional calculations reveal that both B substitution for N atoms (NiN2 B2 -C) and B coordinating with N and C (NiN4 B8 -C) can effectively optimize the Gibbs free energy of oxygen intermediate states and hence improve the catalytic activity of the materials. In addition, we propose that the trend change in catalytic activity is mainly governed by the filling of antibonding orbitals between Ni-3d and O-2p states near the Fermi level.
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Affiliation(s)
- Jingyu Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Da Cao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Hui Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Fangqing Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Limin Liang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Caichi Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Qiuyan Hao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
| | - Ying Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China.,Key Laboratory of Special Functional Materials for Ecological Environment and information, Hebei University of Technology, Ministry of Education, Tianjin, 300130, China
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4
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Kirchhoff B, Ivanov A, Skúlason E, Jacob T, Fantauzzi D, Jónsson H. Assessment of the Accuracy of Density Functionals for Calculating Oxygen Reduction Reaction on Nitrogen-Doped Graphene. J Chem Theory Comput 2021; 17:6405-6415. [PMID: 34550689 DOI: 10.1021/acs.jctc.1c00377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Experimental studies of the oxygen reduction reaction (ORR) at nitrogen-doped graphene electrodes have reported a remarkably low overpotential, on the order of 0.5 V, similar to Pt-based electrodes. Theoretical calculations using density functional theory have lent support to this claim. However, other measurements have indicated that transition metal impurities are actually responsible for the ORR activity, thereby raising questions about the reliability of both the experiments and the calculations. To assess the accuracy of the theoretical calculations, various generalized gradient approximation (GGA), meta-GGA, and hybrid functionals are employed here and calibrated against high-level wave-function-based coupled-cluster calculations (CCSD(T)) of the overpotential as well as self-interaction corrected density functional calculations and published quantum Monte Carlo calculations of O adatom binding to graphene. The PBE0 and HSE06 hybrid functionals are found to give more accurate results than the GGA and meta-GGA functionals, as would be expected, and for a low dopant concentration, 3.1%, the overpotential is calculated to be 1.0 V. The GGA and meta-GGA functionals give a lower estimate by as much as 0.4 V. When the dopant concentration is doubled, the overpotential calculated with hybrid functionals decreases, while it increases in GGA functional calculations. The opposite trends result from different potential-determining steps, the *OOH species being of central importance in the hybrid functional calculations, while the reduction of *O determines the overpotential obtained in GGA and meta-GGA calculations. The results presented here are mainly based on calculations of periodic representations of the system, but a comparison is also made with molecular flake models that are found to give erratic results due to finite size effects and geometric distortions during energy minimization. The presence of the electrolyte has not been taken into account explicitly in the calculations presented here but is estimated to be important for definitive calculations of the overpotential.
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Affiliation(s)
- Björn Kirchhoff
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland.,Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - Aleksei Ivanov
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Egill Skúlason
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.,Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtz-Straβe 16, 89081 Ulm, Germany.,Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
| | - Donato Fantauzzi
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Hannes Jónsson
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
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5
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Esrafili MD, Mousavian P. Catalytic CO oxidation reaction over N-substituted graphene nanoribbon with edge defects. J Mol Graph Model 2021; 108:108006. [PMID: 34388401 DOI: 10.1016/j.jmgm.2021.108006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022]
Abstract
Density functional theory calculations, including dispersion effects, are used to demonstrate how substitutional nitrogen atoms can improve the catalytic reactivity of graphene nanoribbons (GNR) with edge defects in the CO oxidation process. It is demonstrated that the addition of nitrogen impurities significantly enhances O2 adsorption on GNR. Carbon atoms near the edges of defects are the most active sites for capturing O2 molecules. The lower adsorption energy of CO relative to O2 implies that the N-modified GNR is resistant to CO poisoning. The Eley-Rideal (E-R) mechanism has activation energies as low as 0.38 eV, making it the most energetically relevant pathway for the CO + O2 reaction. The findings of this study might help in the design of catalysts for metal-free catalysis of CO oxidation.
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Affiliation(s)
- Mehdi D Esrafili
- Department of Chemistry, University of Maragheh, P.O. Box 55136-553, Maragheh, Iran.
| | - Parisasadat Mousavian
- Department of Chemistry, University of Maragheh, P.O. Box 55136-553, Maragheh, Iran; Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran
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6
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Esrafili MD, Khan AA, Mousavian P. Synergic effects between boron and nitrogen atoms in BN-codoped C 59-n BN n fullerenes ( n = 1-3) for metal-free reduction of greenhouse N 2O gas. RSC Adv 2021; 11:22598-22610. [PMID: 35480474 PMCID: PMC9034274 DOI: 10.1039/d1ra04046d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/21/2021] [Indexed: 12/22/2022] Open
Abstract
The geometries, electronic structures, and catalytic properties of BN-codoped fullerenes C59-n BN n (n = 1-3) are studied using first-principles computations. The results showed that BN-codoping can significantly modify the properties of C60 fullerene by breaking local charge neutrality and creating active sites. The codoping of B and N enhances the formation energy of fullerenes, indicating that the synergistic effects of these atoms helps to stabilize the C59-n BN n structures. The stepwise addition of N atoms around the B atom improves catalytic activities of C59-n BN n in N2O reduction. The reduction of N2O over C58BN and C57BN2 begins with its chemisorption on the B-C bond of the fullerene, followed by the concerted interaction of CO with N2O and the release of N2. The resulting OCO intermediate is subsequently transformed into a CO2 molecule, which is weakly adsorbed on the B atom of the fullerene. On the contrary, nitrogen-rich C56BN3 fullerene is found to decompose N2O into N2 and O* species without the requirement for activation energy. The CO molecule then removes the O* species with a low activation barrier. The activation barrier of the N2O reduction on C56BN3 fullerene is just 0.28 eV, which is lower than that of noble metals.
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Affiliation(s)
- Mehdi D Esrafili
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh P. O. Box 55136-553 Maragheh Iran
| | - Adnan Ali Khan
- Centre for Computational Materials Science, University of Malakand Chakdara Pakistan
- Department of Chemistry, University of Malakand Chakdara Pakistan
| | - Parisasadat Mousavian
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh P. O. Box 55136-553 Maragheh Iran
- Department of Chemistry, Azarbaijan Shahid Madani University Tabriz Iran
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7
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Sun T, Mitchell S, Li J, Lyu P, Wu X, Pérez-Ramírez J, Lu J. Design of Local Atomic Environments in Single-Atom Electrocatalysts for Renewable Energy Conversions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003075. [PMID: 33283369 DOI: 10.1002/adma.202003075] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/06/2020] [Indexed: 05/27/2023]
Abstract
Single-atom electrocatalysts (SAECs) have recently attracted tremendous research interest due to their often remarkable catalytic responses, unmatched by conventional catalysts. The electrocatalytic performance of SAECs is closely related to the specific metal species and their local atomic environments, including their coordination number, the determined structure of the coordination sites, and the chemical identity of nearest and second nearest neighboring atoms. The wide range of distinct chemical bonding configurations of a single-metal atom with its surrounding host atoms creates virtually limitless opportunities for the rational design and synthesis of SAECs with tunable local atomic environment for high-performance electrocatalysis. In this review, the authors first identify fundamental hurdles in electrochemical conversions and highlight the relevance of SAECs. They then critically examine the role of the local atomic structures, encompassing the first and second coordination spheres of the isolated metal atoms, on the design of high-performance SAECs. The relevance of single-atom dopants for host activation is also discussed. Insights into the correlation between local structures of SAECs and their catalytic response are analyzed and discussed. Finally, the authors summarize major challenges to be addressed in the field of SAECs and provide some perspectives in the rational construction of superior SAECs for a wide range of electrochemical conversions.
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Affiliation(s)
- Tao Sun
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Jing Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
| | - Pin Lyu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xinbang Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, Singapore, 117585, Singapore
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
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8
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Esrafili MD, Mousavian P. Catalytic role of graphitic nitrogen atoms in the CO oxidation reaction over N-containing graphene: a first-principles mechanistic evaluation. NEW J CHEM 2021. [DOI: 10.1039/d1nj01867a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic role of graphitic nitrogen atoms of a series of nitrogen-doped graphene surfaces is explored for low-temperature oxidation of CO using periodic DFT calculations.
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Affiliation(s)
- Mehdi D. Esrafili
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh
- Maragheh
- Iran
| | - Parisasadat Mousavian
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh
- Maragheh
- Iran
- Department of Chemistry, Azarbaijan Shahid Madani University
- Tabriz
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9
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Wang H, Liu J, Guo J, Ou X, Wang X, Chen G. Novel joint catalytic properties of Fe and N co-doped graphene for CO oxidation. Phys Chem Chem Phys 2020; 22:28376-28382. [PMID: 33300905 DOI: 10.1039/d0cp05683a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using density functional theory, we have performed detailed calculations of the joint catalytic activity of graphene co-doped with Fe and N atoms. The Fe atom can be located on single vacancy graphene and acts as the active site. Due to the strong attraction of the Fe ion, the O-O bond length of the O2 molecule is elongated, which decreases the bonding energy between the O atoms. The energy barrier of CO oxidization is 0.84 eV. When N atoms are doped into the graphene, the interactions between the Fe ions and O2 molecules are stronger, and the O-O bond lengths are elongated further, which makes the desorption of the quasi-CO2 molecule easier. The energy barriers are reduced to 0.62 eV, 0.49 eV, and 0.33 eV for graphene doped with one, two and three N atoms, respectively. The O atom remaining on the Fe ion can form a CO2 molecule with an additional CO molecule. The produced CO2 molecule can be released with a small or even zero energy barrier by adsorbing an O2 molecule. The adsorbed O2 molecule is then involved in the next reaction process, and the material can be used as a recycled catalyst.
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Affiliation(s)
- Hongbo Wang
- Laboratory of Advanced Materials Physics and Nanodevices, School of Physics and Technology, University of Jinan, Jinan, Shandong 250022, China.
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10
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Hartmann G, Hwang GS. First-principles description of electrocatalytic characteristics of graphene-like materials. J Chem Phys 2020; 153:214704. [PMID: 33291888 DOI: 10.1063/5.0031106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Graphene-like materials (GLMs) have received much attention as a potential alternative to precious metal-based electrocatalysts. However, the description of their electrocatalytic characteristics may still need to be improved, especially under constant chemical potential. Unlike the case of conventional metal electrodes, the potential drop across the electrical double layer (ϕD) at the electrode-electrolyte interface can deviate substantially from the applied voltage (ϕapp) due to a shift of the Dirac point (eϕG) with charging. This may in turn significantly alter the interfacial capacitance (CT) and the relationship between ϕapp and free-energy change (ΔF). Hence, accurate evaluation of the electrode contribution is necessary to better understand and optimize the electrocatalytic properties of GLMs. In this work, we revisit and compare first-principles methods available to describe the ϕapp-∆F relation. Grand-canonical density functional theory is used to determine ΔF as a function of ϕapp or electrode potential (ϕq), from which the relative contribution of eϕG is estimated. In parallel, eϕG is directly extracted from a density functional theory analysis of the electronic structure of uncharged GLMs. The results of both methods are found to be in close agreement for pristine graphene, but their predictions deviate noticeably in the presence of adsorbates; the origin of the discrepancy is analyzed and explained. We then evaluate the application of the first-principle methods to prediction of the electrocatalytic processes, taking the reduction (hydrogenation) and oxidation (hydroxylation) reactions on pristine graphene as examples. Our work highlights the vital role of the modification of the electrode electronic structure in determining the electrocatalytic performance of GLMs.
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Affiliation(s)
- Gregory Hartmann
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
| | - Gyeong S Hwang
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
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11
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Theoretical Modeling of Site Selectivity and Chemical Substitution Effect of H2O2 Production Efficiency on Modified Graphene. Catal Letters 2020. [DOI: 10.1007/s10562-020-03302-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Xie Z, Chen M, Peera SG, Liu C, Yang H, Qi X, Kumar UP, Liang T. Theoretical Study on a Nitrogen-Doped Graphene Nanoribbon with Edge Defects as the Electrocatalyst for Oxygen Reduction Reaction. ACS OMEGA 2020; 5:5142-5149. [PMID: 32201801 PMCID: PMC7081414 DOI: 10.1021/acsomega.9b04146] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Both theory and experiment show that sp2 carbon nanomaterials doped with N have great potential as high-efficiency catalysts for oxygen reduction reactions (ORR). At present, there are theoretical studies that believe that C-sites with positive charge or high-spin density values have higher adsorption capacity, but there are always some counter examples, such as the N-doped graphene nanoribbons with edge defects (ND-GNR) of this paper. In this study, the ORR mechanism of ND-GNR was studied by density functional theory (DFT) calculation, and then the carbon ring resonance energy was analyzed from the perspective of chemical graph theory to elucidate the cause and distribution of active sites in ND-GNR. Finally, it was found that the overpotential of the model can be adjusted by changing the width of the model or dopant atoms while still ensuring proper adsorption energy (between 0.5 and 2.0 eV). The minimum overpotential for these models is approximately 0.36 V. These findings could serve as guidelines for the construction of efficient ORR carbon nanomaterial catalysts.
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Affiliation(s)
- Zeming Xie
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Mingwei Chen
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Shaik Gouse Peera
- Department of Environmental Science and Engineering, Keimyung University, Daegu 42601, Republic of South Korea
| | - Chao Liu
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Hui Yang
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Xiaopeng Qi
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Uppalapati Pramod Kumar
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Tongxiang Liang
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
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13
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Patniboon T, Hansen HA. N-Doped Graphene Supported on Metal-Iron Carbide as a Catalyst for the Oxygen Reduction Reaction: Density Functional Theory Study. CHEMSUSCHEM 2020; 13:996-1005. [PMID: 31894657 DOI: 10.1002/cssc.201903035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/06/2019] [Indexed: 06/10/2023]
Abstract
The development of an efficient electrocatalyst for the oxygen reduction reaction (ORR) is essential for the commercialization of fuel-cell technologies. Iron carbide encapsulated in N-doped graphene (NG/Fe3 C) has been recognized recently as a promising ORR catalyst. In this study, the stability and catalytic activity of N-doped graphene supported on metal-iron carbide (NG/M_Fe3 C) toward the ORR are investigated by using DFT calculations. The NG/M_Fe3 C heterostructure is modeled by substituting Fe atoms in the Fe3 C substrate near the NG/Fe3 C interface by metal atoms M (M=Cr-Mn, Co-Zn, Nb-Mo, Ta-W). The calculations show that the introduction of the metal atoms M alters the work function of the overlayer N-doped graphene, which is found to correlate with the binding strength of the ORR intermediates. The introduction of Ni or Co atoms at the interface improves the ORR activity of the NG/Fe3 C and stabilizes the heterostructure. The ORR activity increases as the concentration of Ni or Co atoms near the interface increases, and the stable heterostructure is available in a wide range of substituted concentrations. These results suggest approaches to improve the ORR activity of NG/Fe3 C catalysts.
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Affiliation(s)
- Tipaporn Patniboon
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, 2800 Kgs., Lyngby, Denmark
| | - Heine Anton Hansen
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, 2800 Kgs., Lyngby, Denmark
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14
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Kim HW, Bukas VJ, Park H, Park S, Diederichsen KM, Lim J, Cho YH, Kim J, Kim W, Han TH, Voss J, Luntz AC, McCloskey BD. Mechanisms of Two-Electron and Four-Electron Electrochemical Oxygen Reduction Reactions at Nitrogen-Doped Reduced Graphene Oxide. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04106] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyo Won Kim
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Advanced Materials Engineering, Kangwon National University, Samcheok 24341, Korea
| | - Vanessa J. Bukas
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305-5025, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Hun Park
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Korea
| | - Sojung Park
- Department of Chemical and Biological Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Kyle M. Diederichsen
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jinkyu Lim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Young Hoon Cho
- Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Juyoung Kim
- Department of Advanced Materials Engineering, Kangwon National University, Samcheok 24341, Korea
| | - Wooyul Kim
- Department of Chemical and Biological Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Tae Hee Han
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Korea
| | - Johannes Voss
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305-5025, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Alan C. Luntz
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305-5025, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Bryan D. McCloskey
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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15
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Gíslason PM, Skúlason E. Catalytic trends of nitrogen doped carbon nanotubes for oxygen reduction reaction. NANOSCALE 2019; 11:18683-18690. [PMID: 31588951 DOI: 10.1039/c9nr03195b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Replacing the state-of-the-art fuel cell catalyst platinum for a cheaper and abundant alternative would make the hydrogen economy viable. Both nitrogen-doped graphene and nitrogen-doped carbon nanotubes (N-CNT) have been shown to be capable of acting as a metal-free catalyst for the oxygen reduction reaction (ORR). Until now, most of the research has been focused on the nitrogen doping and less on the structure of the nanotubes. Here, density functional theory calculations are used to calculate trends in ORR catalytic activity of graphitic-N-doped CNTs of different sizes and chirality of selected tubes between (4,0) and (20,10). This includes 13 armchair tubes, 17 zig-zag tubes and 42 chiral tubes, or 72 N-CNTs in total. 22 tubes are predicted to have a lower overpotential than the platinum catalyst and 46 tubes have lower overpotential than nitrogen doped graphene. The most active tubes are (14,7), (12,6), and (8,8), and display an overpotential of around 0.35 V, or 0.1 V lower overpotential than predicted on Pt(111) with the same level of theory.
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Affiliation(s)
| | - Egill Skúlason
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland VR-III, 107 Reykjavík, Iceland.
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16
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17
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Pham NNT, Park JS, Kim HT, Kim HJ, Son YA, Kang SG, Lee SG. Catalytic performance of graphene quantum dot supported manganese phthalocyanine for efficient oxygen reduction: density functional theory approach. NEW J CHEM 2019. [DOI: 10.1039/c8nj05093g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The thermodynamic free-energy diagrams predict that MnPc/GQD is more active toward ORR than the isolated MnPc, clearly highlighting the effect of the GQD matrix on ORR activity from a thermodynamic perspective.
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Affiliation(s)
- Nguyet N. T. Pham
- Department of Organic Material Science and Engineering
- Pusan National University
- Busan
- Republic of Korea
| | - Jong S. Park
- Department of Organic Material Science and Engineering
- Pusan National University
- Busan
- Republic of Korea
| | - Hee-Tak Kim
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Hyoung-Juhn Kim
- Fuel Cell Research Center
- Korea Institute of Science and Technology
- Seongbuk-gu
- Republic of Korea
| | - Young-A Son
- Department of Advanced Organic Materials Engineering
- Chungnam National University
- Daejeon 305-764
- Republic of Korea
| | - Sung Gu Kang
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- Republic of Korea
| | - Seung Geol Lee
- Department of Organic Material Science and Engineering
- Pusan National University
- Busan
- Republic of Korea
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18
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Dipojono HK, Saputro AG, Fajrial AK, Agusta MK, Akbar FT, Rusydi F, Wicaksono DHB. Oxygen reduction reaction mechanism on a phosporus-doped pyrolyzed graphitic Fe/N/C catalyst. NEW J CHEM 2019. [DOI: 10.1039/c9nj02118c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction between neighbouring FeN4 and Psubs sites of a P-doped pyrolyzed Fe/N/C catalyst promotes four-electron reduction through associative and dissociative mechanisms.
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Affiliation(s)
- Hermawan K. Dipojono
- Research Center for Nanosciences and Nanotechnology
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
- Advanced Functional Materials Research Group
| | - Adhitya G. Saputro
- Research Center for Nanosciences and Nanotechnology
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
- Advanced Functional Materials Research Group
| | | | - Mohammad K. Agusta
- Research Center for Nanosciences and Nanotechnology
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
- Advanced Functional Materials Research Group
| | - Fiki T. Akbar
- Theoretical High Energy Physics and Instrumentations Research Group
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Febdian Rusydi
- Theoretical Physics Research Group
- Department of Physics
- Faculty of Science and Technology
- Airlangga University
- Surabaya 60115
| | - Dedy H. B. Wicaksono
- Department of Biomedical Engineering
- Faculty of Life Sciences and Technology
- Swiss German University
- Tangerang 15143
- Indonesia
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19
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Siahrostami S. Designing Carbon-Based Materials for Efficient Electrochemical Reduction of CO2. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b05253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samira Siahrostami
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4
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20
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21
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Leonard N, Ju W, Sinev I, Steinberg J, Luo F, Varela AS, Roldan Cuenya B, Strasser P. The chemical identity, state and structure of catalytically active centers during the electrochemical CO 2 reduction on porous Fe-nitrogen-carbon (Fe-N-C) materials. Chem Sci 2018; 9:5064-5073. [PMID: 29938037 PMCID: PMC5994794 DOI: 10.1039/c8sc00491a] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 05/02/2018] [Indexed: 11/21/2022] Open
Abstract
We report novel structure–activity relationships and explore the chemical state and structure of catalytically active sites under operando conditions during the electrochemical CO2 reduction reaction (CO2RR) catalyzed by a series of porous iron–nitrogen–carbon (FeNC) catalysts.
We report novel structure–activity relationships and explore the chemical state and structure of catalytically active sites under operando conditions during the electrochemical CO2 reduction reaction (CO2RR) catalyzed by a series of porous iron–nitrogen–carbon (FeNC) catalysts. The FeNC catalysts were synthesized from different nitrogen precursors and, as a result of this, exhibited quite distinct physical properties, such as BET surface areas and distinct chemical N-functionalities in varying ratios. The chemical diversity of the FeNC catalysts was harnessed to set up correlations between the catalytic CO2RR activity and their chemical nitrogen-functionalities, which provided a deeper understanding between catalyst chemistry and function. XPS measurements revealed a dominant role of porphyrin-like Fe–Nx motifs and pyridinic nitrogen species in catalyzing the overall reaction process. Operando EXAFS measurements revealed an unexpected change in the Fe oxidation state and associated coordination from Fe2+ to Fe1+. This redox change coincides with the onset of catalytic CH4 production around –0.9 VRHE. The ability of the solid state coordinative Fe1+–Nx moiety to form hydrocarbons from CO2 is remarkable, as it represents the solid-state analogue to molecular Fe1+ coordination compounds with the same catalytic capability under homogeneous catalytic environments. This finding highlights a conceptual bridge between heterogeneous and homogenous catalysis and contributes significantly to our fundamental understanding of the FeNC catalyst function in the CO2RR.
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Affiliation(s)
- Nathaniel Leonard
- The Electrochemical Energy, Catalysis, and Materials Science Laboratory , Department of Chemistry , Chemical Engineering Division , Technical University Berlin , Berlin , Germany .
| | - Wen Ju
- The Electrochemical Energy, Catalysis, and Materials Science Laboratory , Department of Chemistry , Chemical Engineering Division , Technical University Berlin , Berlin , Germany .
| | - Ilya Sinev
- Department of Physics , Ruhr Universität Bochum , Bochum , Germany
| | - Julian Steinberg
- The Electrochemical Energy, Catalysis, and Materials Science Laboratory , Department of Chemistry , Chemical Engineering Division , Technical University Berlin , Berlin , Germany .
| | - Fang Luo
- The Electrochemical Energy, Catalysis, and Materials Science Laboratory , Department of Chemistry , Chemical Engineering Division , Technical University Berlin , Berlin , Germany .
| | - Ana Sofia Varela
- Institute of Chemistry , National Autonomous University of Mexico , Mexico City , Mexico
| | - Beatriz Roldan Cuenya
- Department of Physics , Ruhr Universität Bochum , Bochum , Germany.,Department of Interface Science , Fritz-Haber Institute of the Max Planck Society , Berlin , Germany .
| | - Peter Strasser
- The Electrochemical Energy, Catalysis, and Materials Science Laboratory , Department of Chemistry , Chemical Engineering Division , Technical University Berlin , Berlin , Germany .
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22
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Dhakal N, Alcántara Ortigoza M, Stolbov S. On the Elusive Link between Adsorbate's Binding Energy and Bond Strength: An Illustration from CO Adsorption on Metal-Doped Graphene. ChemistrySelect 2017. [DOI: 10.1002/slct.201701995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nagendra Dhakal
- Physics Department; University of Central Florida; Orlando FL 32816 USA
| | | | - Sergey Stolbov
- Physics Department; University of Central Florida; Orlando FL 32816 USA
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23
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Cheng Q, Yang L, Zou L, Zou Z, Chen C, Hu Z, Yang H. Single Cobalt Atom and N Codoped Carbon Nanofibers as Highly Durable Electrocatalyst for Oxygen Reduction Reaction. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02326] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qingqing Cheng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of the Chinese Academy of Sciences, Beijing 100039, China
| | - Lijun Yang
- Key
Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Liangliang Zou
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Zhiqing Zou
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Chi Chen
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Zheng Hu
- Key
Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hui Yang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
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24
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Song J, Liu T, Ali S, Li B, Su D. The synergy effect and reaction pathway in the oxygen reduction reaction on the sulfur and nitrogen dual doped graphene catalyst. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.03.088] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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25
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Sun T, Jiang Y, Wu Q, Du L, Zhang Z, Yang L, Wang X, Hu Z. Is iron nitride or carbide highly active for oxygen reduction reaction in acidic medium? Catal Sci Technol 2017. [DOI: 10.1039/c6cy01921h] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The high ORR activities in acidic medium for the so-called Fe2N- and Fe3C-based catalysts actually originate from the trace of Fe–Nx/C moieties (x ≥ 4) rather than the Fe2N or Fe3C phases themselves.
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Affiliation(s)
- Tao Sun
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yufei Jiang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Qiang Wu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Lingyu Du
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Zhiqi Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Lijun Yang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Xizhang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Zheng Hu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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26
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Noffke BW, Li Q, Raghavachari K, Li LS. A Model for the pH-Dependent Selectivity of the Oxygen Reduction Reaction Electrocatalyzed by N-Doped Graphitic Carbon. J Am Chem Soc 2016; 138:13923-13929. [DOI: 10.1021/jacs.6b06778] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Benjamin W. Noffke
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Qiqi Li
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Krishnan Raghavachari
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Liang-shi Li
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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27
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28
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Khan AF, Randviir EP, Brownson DAC, Ji X, Smith GC, Banks CE. 2D Hexagonal Boron Nitride (2D-hBN) Explored as a Potential Electrocatalyst for the Oxygen Reduction Reaction. ELECTROANAL 2016. [DOI: 10.1002/elan.201600462] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aamar F. Khan
- Faculty of Science and Engineering; Manchester Metropolitan University; Chester Street Manchester M1 5GD UK
| | - Edward P. Randviir
- Faculty of Science and Engineering; Manchester Metropolitan University; Chester Street Manchester M1 5GD UK
| | - Dale A. C. Brownson
- Faculty of Science and Engineering; Manchester Metropolitan University; Chester Street Manchester M1 5GD UK
| | - Xiaobo Ji
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 PR China
| | - Graham C. Smith
- Faculty of Science and Engineering; Department of Natural Sciences; University of Chester; Thornton Science Park, Pool Lane, Ince Chester CH2 4NU UK
| | - Craig E. Banks
- Faculty of Science and Engineering; Manchester Metropolitan University; Chester Street Manchester M1 5GD UK
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29
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30
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Di Valentin C, Ferrighi L, Fazio G. Theoretical Studies of Oxygen Reactivity of Free-Standing and Supported Boron-Doped Graphene. CHEMSUSCHEM 2016; 9:1061-1077. [PMID: 27031193 DOI: 10.1002/cssc.201501439] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/07/2016] [Indexed: 06/05/2023]
Abstract
Graphene inertness towards chemical reactivity can be considered as an accepted postulate by the research community. This limit has been recently overcome by chemically and physically modifying graphene through non-metal doping or interfacing with acceptor/donor materials (metals or semiconductors). As a result, outstanding performances as catalytic, electrocatalytic, and photocatalytic material have been observed. In this critical Review we report computational work performed, by our group, on the reactivity of free-standing, metal- and semiconductor-supported B-doped graphene towards oxygen, which is at the basis of extremely important energy-related chemical processes, such as the oxygen reduction reaction. It appears that a combination of doping and interfacing approaches for the activation of graphene can open unconventional and unprecedented reaction paths, thus boosting the potential of modified graphene in many chemical applications.
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Affiliation(s)
- Cristiana Di Valentin
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy.
| | - Lara Ferrighi
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy
| | - Gianluca Fazio
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy
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31
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Morishita T, Ueno T, Panomsuwan G, Hieda J, Antoaneta Bratescu M, Saito N. DFT calculation of oxygen adsorption on a core-single shell ZnNb catalyst. RSC Adv 2016. [DOI: 10.1039/c6ra19311k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oxygen adsorption onto Pt, Nb, and core-single shell ZnNb particles is studied using ab initio molecular orbital (MO) calculations to realize their ability for the oxygen reduction reaction (ORR).
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Affiliation(s)
- Tetsunori Morishita
- Department of Materials, Physics and Energy Engineering
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Tomonaga Ueno
- Department of Materials, Physics and Energy Engineering
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Gasidit Panomsuwan
- NU-PPC Plasma Chemical Technology Laboratory
- The Petroleum and Petrochemical College
- Chulalongkorn University
- Bangkok 10330
- Thailand
| | - Junko Hieda
- Department of Materials, Physics and Energy Engineering
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Maria Antoaneta Bratescu
- Department of Materials, Physics and Energy Engineering
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Nagahiro Saito
- Department of Materials, Physics and Energy Engineering
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
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32
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Jia Q, Ramaswamy N, Hafiz H, Tylus U, Strickland K, Wu G, Barbiellini B, Bansil A, Holby EF, Zelenay P, Mukerjee S. Experimental Observation of Redox-Induced Fe-N Switching Behavior as a Determinant Role for Oxygen Reduction Activity. ACS NANO 2015; 9:12496-505. [PMID: 26566192 DOI: 10.1021/acsnano.5b05984] [Citation(s) in RCA: 248] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The commercialization of electrochemical energy conversion and storage devices relies largely upon the development of highly active catalysts based on abundant and inexpensive materials. Despite recent achievements in this respect, further progress is hindered by the poor understanding of the nature of active sites and reaction mechanisms. Herein, by characterizing representative iron-based catalysts under reactive conditions, we identify three Fe-N4-like catalytic centers with distinctly different Fe-N switching behaviors (Fe moving toward or away from the N4-plane) during the oxygen reduction reaction (ORR), and show that their ORR activities are essentially governed by the dynamic structure associated with the Fe(2+/3+) redox transition, rather than the static structure of the bare sites. Our findings reveal the structural origin of the enhanced catalytic activity of pyrolyzed Fe-based catalysts compared to nonpyrolyzed Fe-macrocycle compounds. More generally, the fundamental insights into the dynamic nature of transition-metal compounds during electron-transfer reactions will potentially guide rational design of these materials for broad applications.
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Affiliation(s)
- Qingying Jia
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Nagappan Ramaswamy
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Hasnain Hafiz
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Urszula Tylus
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Kara Strickland
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Gang Wu
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Bernardo Barbiellini
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Arun Bansil
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Edward F Holby
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Piotr Zelenay
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Sanjeev Mukerjee
- Department of Chemistry and Chemical Biology, and ‡Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
- Materials Science and Technology Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
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33
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Dong L, Hu C, Huang X, Chen N, Qu L. One-pot Synthesis of Nitrogen and Phosphorus Co-doped Graphene and Its Use as High-performance Electrocatalyst for Oxygen Reduction Reaction. Chem Asian J 2015; 10:2609-14. [DOI: 10.1002/asia.201500707] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/05/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Liye Dong
- Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology
| | - Chuangang Hu
- Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology
| | - Xianke Huang
- Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology
| | - Nan Chen
- Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology
| | - Liangti Qu
- Key Laboratory of Cluster Science, Ministry of Education of China; Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology
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34
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Koitz R, Nørskov JK, Studt F. A systematic study of metal-supported boron nitride materials for the oxygen reduction reaction. Phys Chem Chem Phys 2015; 17:12722-7. [PMID: 25904075 DOI: 10.1039/c5cp01384d] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Surfaces that efficiently catalyse the oxygen reduction reaction (ORR) are highly desirable for applications in energy utilization. Here, we computationally investigate the ORR on hexagonal boron nitride (h-BN) supported on Ni, Cu, and Co. We find a significant influence of the metal on the reaction energetics. In particular, h-BN/Cu is predicted to catalyse the ORR with a low overpotential, while on the other substrates the reaction is impeded by the formation of too stable surface hydroxyl species. Our results highlight trends in the reactivity of these heterostructures and may guide further rational design of O2-activating catalysts based on supported h-BN.
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Affiliation(s)
- Ralph Koitz
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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35
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Bhattacharjee J. Activation of Graphenic Carbon Due to Substitutional Doping by Nitrogen: Mechanistic Understanding from First Principles. J Phys Chem Lett 2015; 6:1653-1660. [PMID: 26263329 DOI: 10.1021/acs.jpclett.5b00304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nitrogen-doped graphene and carbon nanotubes are popularly in focus as metal-free electrocatalysts for oxygen reduction reactions (ORR) central to fuel cells. N-doped CNTs have been also reported to chemisorb mutually, promising a route to their robust predetermined assembly into devices and mechanical reinforcements. We propose from first principles a common mechanistic understanding of these two aspects pointing further to a generic chemical activation of carbon atoms due to substitution by nitrogen in experimentally observed configurations. Wannier-function based orbital resolved study of mechanisms suggests increase in C-N bond-orders in attempt to retain π-conjugation among carbon atoms, causing mechanical stress and loss of charge neutrality of nitrogen and carbon atoms, which remedially facilitate chemical activation of N-coordinated C atoms, enhancing sharply with increasing coordination to N and proximity to zigzag edges. Activated C atoms facilitate covalent adsorption of radicals in general, diradicals like O2 relevant to ORR, and also other similarly activated C atoms, leading to self-assembly of graphenic nanostructures while remaining inert to ordinary graphenic C atoms.
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Affiliation(s)
- Joydeep Bhattacharjee
- School of Physical Sciences, National Institute of Science Education and Research, IOP campus, Sachivalay Marg, Bhubaneswar 751005, India
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Stolbov S, Alcántara Ortigoza M. Gold-doped graphene: A highly stable and active electrocatalysts for the oxygen reduction reaction. J Chem Phys 2015; 142:154703. [DOI: 10.1063/1.4917468] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Activity of N-coordinated multi-metal-atom active site structures for Pt-free oxygen reduction reaction catalysis: role of *OH ligands. Sci Rep 2015; 5:9286. [PMID: 25788358 PMCID: PMC4365393 DOI: 10.1038/srep09286] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 02/12/2015] [Indexed: 01/08/2023] Open
Abstract
We report calculated oxygen reduction reaction energy pathways on multi-metal-atom structures that have previously been shown to be thermodynamically favorable. We predict that such sites have the ability to spontaneously cleave the O2 bond and then will proceed to over-bind reaction intermediates. In particular, the *OH bound state has lower energy than the final 2 H2O state at positive potentials. Contrary to traditional surface catalysts, this *OH binding does not poison the multi-metal-atom site but acts as a modifying ligand that will spontaneously form in aqueous environments leading to new active sites that have higher catalytic activities. These *OH bound structures have the highest calculated activity to date.
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Saputro AG, Kasai H. Oxygen reduction reaction on neighboring Fe–N4 and quaternary-N sites of pyrolized Fe/N/C catalyst. Phys Chem Chem Phys 2015; 17:3059-71. [DOI: 10.1039/c4cp04811c] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interactions of Fe–N4 and quaternary-N sites at the zigzag edge of graphene enhance the ORR free-energy profile of the quaternary-N site.
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Affiliation(s)
- Adhitya G. Saputro
- Department of Applied Physics
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
| | - Hideaki Kasai
- Department of Applied Physics
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
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Fazio G, Ferrighi L, Di Valentin C. Boron-doped graphene as active electrocatalyst for oxygen reduction reaction at a fuel-cell cathode. J Catal 2014. [DOI: 10.1016/j.jcat.2014.07.024] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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First principles study of oxygen reduction reaction mechanisms on N-doped graphene with a transition metal support. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.076] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Liu M, Song Y, He S, Tjiu WW, Pan J, Xia YY, Liu T. Nitrogen-doped graphene nanoribbons as efficient metal-free electrocatalysts for oxygen reduction. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4214-4222. [PMID: 24559423 DOI: 10.1021/am405900r] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nitrogen-doped graphene nanoribbon (N-GNR) nanomaterials with different nitrogen contents have been facilely prepared via high temperature pyrolysis of graphene nanoribbons (GNR)/polyaniline (PANI) composites. Here, the GNRs with excellent surface integration were prepared by longitudinally unzipping the multiwalled carbon nanotubes. With a high length-to-width ratio, the GNR sheets are prone to form a conductive network by connecting end-to-end to facilitate the transfer of electrons. Different amounts of PANI acting as a N source were deposited on the surface of GNRs via a layer-by-layer approach, resulting in the formation of N-GNR nanomaterials with different N contents after being pyrolyzed. Electrochemical characterizations reveal that the obtained N8.3-GNR nanomaterial has excellent catalytic activity toward an oxygen reduction reaction (ORR) in an alkaline electrolyte, including large kinetic-limiting current density and long-term stability as well as a desirable four-electron pathway for the formation of water. These superior properties make the N-GNR nanomaterials a promising kind of cathode catalyst for alkaline fuel cell applications.
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Affiliation(s)
- Mingkai Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
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Zhang J, Wang Z, Zhu Z. A density functional theory study on oxygen reduction reaction on nitrogen-doped graphene. J Mol Model 2013; 19:5515-21. [PMID: 24241180 DOI: 10.1007/s00894-013-2047-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 10/21/2013] [Indexed: 11/25/2022]
Abstract
Nitrogen (N)-doped carbons reportedly exhibit good electrocatalytic activity for the oxygen reduction reaction (ORR) of fuel cells. This work provides theoretical insights into the ORR mechanism of N-doped graphene by using density functional theory calculations. All possible reaction pathways were investigated, and the transition state of each elementary step was identified. The results showed that OOH reduction was easier than O-OH breaking. OOH reduction followed a direct Eley-Rideal mechanism (the OOH species was in gas phase, but H was chemisorbed on the surface) with a significantly low reaction barrier of 0.09 eV. Pathways for both four-electron and two-electron reductions were possible. The rate-determining step of the two-electron pathway was the reduction of O₂ (formation of OOH), whereas that of the four-electron pathway was the reduction of OH into H₂O. After comparing the barriers of the rate-determining steps of the two pathways, we found that the two-electron pathway was more energetically favored than the four-electron pathway.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, China
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