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Tian G, Wang J, Wang S, Xue C, Su H, Yang X, Li Q, Yang Z, Tian Y, Yan Z. Uncovering the Interfacial Strengthening Mechanisms of α-Mg/Mg 2Sn/β-Li Interfaces Using First-Principle Calculations and HAADF-STEM. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43049-43063. [PMID: 39088081 DOI: 10.1021/acsami.4c10472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Previously, we reported our new invention of an ultralight (ρ = 1.61 g/cm3) and super high modulus (E = 64.5 GPa) Mg-Li-Al-Zn-Mn-Gd-Y-Sn (LAZWMVT) alloy. Surprisingly, the minor additions of Sn contribute to significant strength and stiffness increases. In this study, we found that Mg2Sn was not only the simple precipitate but also acted as the glue to bind the α-Mg/β-Li interface in a rather complicated way. To explore its mechanism, we have performed first-principle calculations and HAADF-STEM experiments on the interfacial structures. It was found that the interfacial structural models of α-Mg/β-Li, α-Mg/Mg2Sn, and β-Li/Mg2Sn composite interfaces prefer to form α-Mg/Mg2Sn/β-Li ternary composite structures due to the stable formation enthalpy (ΔH: -1.95 eV/atom). Meanwhile, the interface cleavage energy and critical cleavage stress show that Mg2Sn contribute to the interfacial bond strength better than the β-Li/α-Mg phase bond strength (σb(β-Li/Mg2Sn): 0.82 GPa > σb(α-Mg/Mg2Sn): 0.78 GPa > σb(β-Li/α-Mg): 0.62 GPa). Based on the interfacial electronic structure analysis, α-Mg/Mg2Sn and β-Li/Mg2Sn were found to have a denser charge distribution and larger charge transfer at the interface, forming stronger chemical bonds. Additionally, according to the crystal orbital Hamiltonian population analysis, the bonding strength of the Mg-Sn atom pair was 2.61 eV, which was higher than the Mg-Li bond strength (0.39 eV). The effect of the Mg2Sn phase on the stability and interfacial bonding strength of the alloying system was dominated by the formation of stronger and more stable Mg-Sn metal covalent bonds, which mainly originated from the contribution of the Mg 3p-Sn 5p orbital bonding states.
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Affiliation(s)
- Guangyuan Tian
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Junsheng Wang
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Shuo Wang
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Chengpeng Xue
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Hui Su
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Xinghai Yang
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Quan Li
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Zhihao Yang
- School of Materials Science & Engineering, Beijing Institute of Technology, No.5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Yingchun Tian
- China North Industries Group, No. 52 Research Institute, Baotou, Inner Mongolia 014030, China
| | - Zhifei Yan
- China North Industries Group, No. 52 Research Institute, Baotou, Inner Mongolia 014030, China
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Gao X, Chen Y, Wang Y, Zhao L, Zhao X, Du J, Wu H, Chen A. Next-Generation Green Hydrogen: Progress and Perspective from Electricity, Catalyst to Electrolyte in Electrocatalytic Water Splitting. NANO-MICRO LETTERS 2024; 16:237. [PMID: 38967856 PMCID: PMC11226619 DOI: 10.1007/s40820-024-01424-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/22/2024] [Indexed: 07/06/2024]
Abstract
Green hydrogen from electrolysis of water has attracted widespread attention as a renewable power source. Among several hydrogen production methods, it has become the most promising technology. However, there is no large-scale renewable hydrogen production system currently that can compete with conventional fossil fuel hydrogen production. Renewable energy electrocatalytic water splitting is an ideal production technology with environmental cleanliness protection and good hydrogen purity, which meet the requirements of future development. This review summarizes and introduces the current status of hydrogen production by water splitting from three aspects: electricity, catalyst and electrolyte. In particular, the present situation and the latest progress of the key sources of power, catalytic materials and electrolyzers for electrocatalytic water splitting are introduced. Finally, the problems of hydrogen generation from electrolytic water splitting and directions of next-generation green hydrogen in the future are discussed and outlooked. It is expected that this review will have an important impact on the field of hydrogen production from water.
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Affiliation(s)
- Xueqing Gao
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Yutong Chen
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Yujun Wang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Luyao Zhao
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Xingyuan Zhao
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Juan Du
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Haixia Wu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Aibing Chen
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China.
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Hanslin SØ, Jónsson H, Akola J. Sulfur-deficient edges as active sites for hydrogen evolution on MoS 2. Phys Chem Chem Phys 2023; 25:32541-32548. [PMID: 37997768 DOI: 10.1039/d3cp04198k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
A grand-canonical approach is employed to calculate the voltage-dependent activation energy and estimate the kinetics of the hydrogen evolution reaction (HER) on intrinsic sites of MoS2, including edges of varying S-coverage as well as S-vacancies on the basal plane. Certain edge configurations are found to be vastly more active than others, namely S-deficient edges on the Mo-termination where, in the fully S-depleted case, HER can proceed with activation energy below 0.5 eV at an electrode potential of 0 V vs. SHE. There is a clear distinction between the performance of Mo-rich and S-rich adsorption sites, as HER at the latter sites is characterized by large (generally above 1.5 eV) Heyrovsky and Tafel energy barriers despite near-thermoneutral hydrogen adsorption energy. Thus, exposing Mo-atoms on the edges to which hydrogen can directly bind is crucial for efficient hydrogen evolution. While S-vacancies on the basal plane do expose Mo-rich sites, the energy barriers are still significant due to high coordination of the Mo atoms. Kinetic modelling based on the voltage-dependent reaction energetics gives a theoretical overpotential of 0.25 V and 1.09 V for the Mo-edge with no S atoms and the weakly sulfur-deficient (2% S-vacancies) basal plane, respectively, with Volmer-Heyrovsky being the dominant pathway. These values coincide well with reported experimentally measured values of the overpotential for the edges and basal plane. For the partly Mo-exposed edges, the calculated overpotential is 0.6-0.7 V while edges with only S-sites give overpotential exceeding that of the basal plane. These results show that the overpotential systematically decreases with increased sulfur-deficiency and reduced Mo-coordination. The fundamental difference between Mo- and S-rich sites suggests that catalyst design of transition metal dichalcogenides should be focused on facilitating and modifying the metal sites, rather than activating the chalcogen sites.
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Affiliation(s)
- Sander Ø Hanslin
- Department of Physics, Norwegian University of Science and Technology, No-7491, Trondheim, Norway.
- Science Institute and Faculty of Physical Sciences, University of Iceland, IS-107 Reykjavík, Iceland
| | - Hannes Jónsson
- Science Institute and Faculty of Physical Sciences, University of Iceland, IS-107 Reykjavík, Iceland
| | - Jaakko Akola
- Department of Physics, Norwegian University of Science and Technology, No-7491, Trondheim, Norway.
- Computational Physics Laboratory, Tampere University, FI-33101 Tampere, Finland
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An Y, Cao W, Ouyang M, Chen S, Wang G, Chen X. Substantial impact of surface charges on electrochemical reaction kinetics on S vacancies of MoS2 using grand-canonical iteration method. J Chem Phys 2023; 159:144702. [PMID: 37811830 DOI: 10.1063/5.0153358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023] Open
Abstract
The surface charges of catalysts have intricate influences on the thermodynamics and kinetics of electrochemical reactions. Herein, we develop a grand-canonical iteration method based on density functional theory calculations to explore the effect of surface charges on reaction kinetics beyond the traditional Butler-Volmer picture. Using the hydrogen evolution reaction on S vacancies of MoS2 as an example, we show how to track the change of surface charge in a reaction and to analyze its influence on the kinetics. Protons adsorb on S vacancies in a tough and charge-insensitive water splitting manner, which explains the observed large Tafel slope. Grand-canonical calculations report an unanticipated surface charge-induced change of the desorption pathway from the Heyrovsky route to a Volmer-Tafel route. During an electrochemical reaction, a net electron inflow into the catalyst may bring two effects, i.e., stabilization of the canonical energy and destabilization of the charge-dependent grand-canonical part. On the contrary, a net outflow of electrons from the catalyst can reverse the two effects. This surface charge effect has substantial impacts on the overpotential and the Tafel slope. We suggest that the surface charge effect is universal for all electrochemical reactions and significant for those involving interfacial proton transfers.
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Affiliation(s)
- Yi An
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Wei Cao
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Min Ouyang
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Shiqi Chen
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Guangjin Wang
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan 528000, China
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Xiaobo Chen
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
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Singh A, Jain M, Bhumla P, Bhattacharya S. Electrocatalytic study of the hydrogen evolution reaction on MoS 2/BP and MoSSe/BP in acidic media. NANOSCALE ADVANCES 2023; 5:5332-5339. [PMID: 37767041 PMCID: PMC10521249 DOI: 10.1039/d3na00215b] [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: 04/03/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023]
Abstract
Molecular hydrogen (H2) production by the electrochemical hydrogen evolution reaction (HER) is being actively explored for non-precious metal-based electrocatalysts that are earth-abundant and low cost like MoS2. Although it is acid-stable, its applicability is limited by catalytically inactive basal planes, poor electrical transport and inefficient charge transfer at the interface. Therefore, the present work examines its bilayer van der Waals heterostructure (vdW HTS). The second constituent monolayer boron phosphide (BP) is advantageous as an electrode material owing to its chemical stability in both oxygen and water environments. Here, we have performed first-principles based calculations under the framework of density functional theory (DFT) for the HER in an electrochemical double layer model with the BP monolayer, MoS2/BP and MoSSe/BP vdW HTSs. The climbing image nudged elastic band method (CI-NEB) has been employed to determine the minimum energy pathways for Tafel and Heyrovsky reactions. The calculations reveal that the Tafel reaction shows no reaction barrier. Thereafter, for the Heyrovsky reaction, we obtained a low reaction barrier in the vdW HTSs as compared to that in the BP monolayer. Subsequently, we have observed no significant difference in the reaction profile of MoS2/BP and MoSSe/BP vdW HTSs in the case of 2 × 2 supercell configuration. However, in the case of 3 × 3 and 4 × 4 configurations, MoSSe/BP shows a feasible Heyrovsky reaction with no reaction barrier. The coverages with 1/4H+ concentration (conc.) deduced high coverage with low conc. and low coverage with high conc. to be apt for the HER via the Heyrovsky reaction path. Finally, on observing the activation barrier of the Heyrovsky pathway along with that of second H adsorption at the surface, the Heyrovsky path is expected to be favoured.
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Affiliation(s)
- Arunima Singh
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Manjari Jain
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Preeti Bhumla
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
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Abidi N, Steinmann SN. An Electrostatically Embedded QM/MM Scheme for Electrified Interfaces. ACS APPLIED MATERIALS & INTERFACES 2023; 15:25009-25017. [PMID: 37163568 DOI: 10.1021/acsami.3c01430] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Atomistic modeling of electrified interfaces remains a major issue for detailed insights in electrocatalysis, corrosion, electrodeposition, batteries, and related devices such as pseudocapacitors. In these domains, the use of grand-canonical density functional theory (GC-DFT) in combination with implicit solvation models has become popular. GC-DFT can be conveniently applied not only to metallic surfaces but also to semiconducting oxides and sulfides and is, furthermore, sufficiently robust to achieve a consistent description of reaction pathways. However, the accuracy of implicit solvation models for solvation effects at interfaces is in general unknown. One promising way to overcome the limitations of implicit solvents is going toward hybrid quantum mechanical (QM)/molecular mechanics (MM) models. For capturing the electrochemical potential dependence, the key quantity is the capacitance, i.e., the relation between the surface charge and the electrochemical potential. In order to retrieve the electrochemical potential from a QM/MM hybrid scheme, an electrostatic embedding is required. Furthermore, the charge of the surface and of the solvent regions has to be strictly opposite in order to consistently simulate charge-neutral unit cells in MM and in QM. To achieve such a QM/MM scheme, we present the implementation of electrostatic embedding in the VASP code. This scheme is broadly applicable to any neutral or charged solid/liquid interface. Here, we demonstrate its use in the context of GC-DFT for the hydrogen evolution reaction (HER) over a noble-metal-free electrocatalyst, MoS2. We investigate the effect of electrostatic embedding compared to the implicit solvent model for three contrasting active sites on MoS2: (i) the sulfur vacancy defect, which is rather apolar; (ii) a Mo antisite defect, where the active site is a surface bound highly polar OH group; and (iii) a reconstructed edge site, which is generally believed to be responsible for most of the catalytic activity. According to our results, the electrostatic embedding leads to almost indistinguishable results compared to the implicit solvent for the apolar system but has a significant effect on polar sites. This demonstrates the reliability of the hybrid QM/MM, electrostatically embedded solvation model for electrified interfaces.
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Affiliation(s)
- Nawras Abidi
- Ecole Normale Supérieure de Lyon, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, F-69364 Lyon, France
| | - Stephan N Steinmann
- Ecole Normale Supérieure de Lyon, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, F-69364 Lyon, France
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Maleki F, Di Liberto G, Pacchioni G. pH- and Facet-Dependent Surface Chemistry of TiO 2 in Aqueous Environment from First Principles. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11216-11224. [PMID: 36786774 PMCID: PMC9982820 DOI: 10.1021/acsami.2c19273] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
TiO2 is a relevant catalytic material, and its chemistry in aqueous environment is a challenging aspect to address. Also, the morphology of TiO2 particles at the nanoscale is often complex, spanning from faceted to spherical. In this work, we study the pH- and facet-dependent surface chemistry of TiO2/water interfaces by performing ab initio molecular dynamics simulations with the grand canonical formulation of species in solution. We first determined the acid-base equilibrium constants at the interface, which allows us to estimate the pH at the point of zero charge, an important experimental observable. Then, based on simulated equilibrium constants, we predict the amount of H+, OH-, and adsorbed H2O species present on the surfaces as a function of the pH, a relevant aspect for water splitting semi-reactions. We approximated the complex morphology of TiO2 particles by considering the rutile (110) and (011), and anatase (101), (001), and (100) surfaces.
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Lei D, Gui W, Zhao X, Tian X, Xiao W, Xue J, Wang Y, Peng X. New insight into poor flotation recovery of fine molybdenite: An overlooked phase transition from 2H to 1T MoS2. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Abidi N, Bonduelle-Skrzypczak A, Steinmann SN. How to dope the basal plane of 2H-MoS2 to boost the hydrogen evolution reaction? Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Xi C, Zheng F, Gao G, Song Z, Zhang B, Dong C, Du XW, Wang LW. Ion Solvation Free Energy Calculation Based on Ab Initio Molecular Dynamics Using a Hybrid Solvent Model. J Chem Theory Comput 2022; 18:6878-6891. [PMID: 36253911 DOI: 10.1021/acs.jctc.1c01298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Free energy calculation of small molecules or ion species in aqueous solvent is one of the most important problems in electrochemistry study. Although there are many previous approaches to calculate such free energies, they are based on ab initio methods and suffer from various limitations and approximations. In the current work, we developed a hybrid approach based on ab initio molecular dynamics (AIMD) simulations to calculate the ion solvation energy. In this approach, a small water cluster surrounding the central ion is used, and implicit solvent model is applied outside the water cluster. A dynamic potential well is used during AIMD to keep the water cluster together. Quasi-harmonic approximation is used to calculate the entropy contribution, while the total energy average is used to calculate the enthalpy term. The obtained solvation voltages of the bulk metal agree with experiments within 0.3 eV, and the simulation results for the solvation energies of gaseous ions are close to the experimental observations. Besides the free energies, radial pair distribution functions and coordination numbers of hydrated cations are also obtained. The remaining challenges of this method are also discussed.
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Affiliation(s)
- Cong Xi
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States.,Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin30072, People's Republic of China
| | - Fan Zheng
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Guoping Gao
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Zhigang Song
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Buyu Zhang
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Cunku Dong
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin30072, People's Republic of China
| | - Xi-Wen Du
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin30072, People's Republic of China
| | - Lin-Wang Wang
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
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11
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Tong T, Linghu Y, Wu G, Wang C, Wu C. Nitric oxide electrochemical reduction reaction on transition metal-doped MoSi 2N 4 monolayers. Phys Chem Chem Phys 2022; 24:18943-18951. [PMID: 35916291 DOI: 10.1039/d2cp01500e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Nitric oxide electrochemical reduction (NOER) reactions are usually catalyzed by noble metals. However, the commercial applications are limited by the low atomic utilization and high price, which prompt researchers to turn their attentions to single-atom catalysts (SACs). Recently, a novel two-dimensional semiconducting material MoSi2N4 (MSN) has been synthesized and is suitable for the substrate of SACs due to its high stability, carrier mobility and mechanical strength. Herein, we employed first principles calculations to investigate the catalytic properties of transition metal doped MoSi2N4 monolayers (labelled as TM-MSN, where TM is a transition metal atom from 3d to 5d except Y, Tc, Cd, La-Lu and Hg) in NO reduction. The calculated results demonstrate that the introduction of Zr, Pd, Pt, Mn, Au, or Mo atoms can greatly improve the catalytic NOER performance of a pristine MSN monolayer. Zr-MSN and Pt-MSN monolayers at low coverage exhibit the most superior catalytic activity and selectivity for NH3 production with a limiting potential of 0 and -0.10 V. This work may help guide the application of MSN monolayer in the area of energy conversion.
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Affiliation(s)
- Tianyue Tong
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China. .,Advanced Energy Materials and Systems Institute, North University of China, Taiyuan 030051, P. R. China.
| | - Yaoyao Linghu
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China. .,Advanced Energy Materials and Systems Institute, North University of China, Taiyuan 030051, P. R. China.
| | - Guangping Wu
- Advanced Energy Materials and Systems Institute, North University of China, Taiyuan 030051, P. R. China. .,School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, P. R. China
| | - Chao Wang
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China. .,Advanced Energy Materials and Systems Institute, North University of China, Taiyuan 030051, P. R. China.
| | - Chao Wu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710054, P. R. China.
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12
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Hierarchical Ni Modified PW12 Clusters In Situ Integrated on Ni Foam for Efficient Alkaline Hydrogen Evolution. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02318-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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13
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Tayyebi E, Höskuldsson ÁB, Wark A, Atrak N, Comer BM, Medford AJ, Skúlason E. Perspectives on the Competition between the Electrochemical Water and N 2 Oxidation on a TiO 2(110) Electrode. J Phys Chem Lett 2022; 13:6123-6129. [PMID: 35759374 DOI: 10.1021/acs.jpclett.2c00769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The electrochemical nitrogen oxidation reaction (NOR) has recently drawn attention due to promising experimental and theoretical results. It provides an alternative, environmentally friendly route to directly synthesize nitrate from N2(g). There is to date a limited number of investigations focused on the electrochemical NOR. Herein, we present a detailed computational study on the kinetics of both the NOR and the competing oxygen evolution reaction (OER) on the TiO2(110) electrode under ambient conditions. The use of grand canonical density functional theory in combination with the linearized Poisson-Boltzmann equation allows a continuous tuning of the explicitly applied electrical potential. We find that the OER may either promote or suppress the NOR on TiO2(110) depending on reaction conditions. The detailed atomistic insights provided on the mechanisms of these competing processes make possible further developments toward a direct electrochemical NOR process.
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Affiliation(s)
- Ebrahim Tayyebi
- Science Institute, University of Iceland, VR-III, 107 Reykjavík, Iceland
| | | | - André Wark
- Science Institute, University of Iceland, VR-III, 107 Reykjavík, Iceland
| | - Narges Atrak
- Science Institute, University of Iceland, VR-III, 107 Reykjavík, Iceland
| | - Benjamin M Comer
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30318, United States
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Andrew James Medford
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30318, United States
| | - Egill Skúlason
- Science Institute, University of Iceland, VR-III, 107 Reykjavík, Iceland
- Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, VR-III, 107 Reykjavík, Iceland
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14
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Cao H, Zhang Z, Chen JW, Wang YG. Potential-Dependent Free Energy Relationship in Interpreting the Electrochemical Performance of CO 2 Reduction on Single Atom Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01470] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Cao
- Shenzhen Key Laboratory of Energy Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zisheng Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Jie-Wei Chen
- Shenzhen Key Laboratory of Energy Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yang-Gang Wang
- Shenzhen Key Laboratory of Energy Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
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Steinmann SN, Michel C. How to Gain Atomistic Insights on Reactions at the Water/Solid Interface? ACS Catal 2022. [DOI: 10.1021/acscatal.2c00594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Stephan N. Steinmann
- Ecole Normale Supérieure de Lyon, CNRS, Laboratoire de Chimie
UMR 5182, 46 allée d’Italie, F-69364 Lyon, France
| | - Carine Michel
- Ecole Normale Supérieure de Lyon, CNRS, Laboratoire de Chimie
UMR 5182, 46 allée d’Italie, F-69364 Lyon, France
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16
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Lu J, Hou X, Xiao B, Xu X, Mi J, Zhang P. Computational screening of transition-metal doped boron nanotubes as efficient electrocatalysts for water splitting. RSC Adv 2022; 12:6841-6847. [PMID: 35424632 PMCID: PMC8981768 DOI: 10.1039/d1ra09381a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/22/2022] [Indexed: 11/21/2022] Open
Abstract
The search for efficient and low-cost electrocatalysts for the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) is of utmost importance for the production of hydrogen and oxygen via water splitting. In this work, the catalytic performance of the OER and HER on transition metal doped boron nanotubes (BNTs) was investigated using density functional theory. It was found that the doped transition metal atoms determine the catalytic activity of the BNTs. Rhodium-doped BNTs exhibited excellent OER activity, while cobalt-doped BNTs displayed great catalytic activity toward the HER. Volcano relationships were found between the catalytic activity and the adsorption strength of reaction intermediates. Rhodium- and cobalt-doped BNTs exhibited great OER and HER catalytic activity due to the favorable adsorption strength of reaction intermediates. This work sheds light on the design of novel electrocatalysts for water splitting and provides helpful guidelines for the future development of advanced electrocatalysts. Rhodium-doped BNTs demonstrated excellent OER activity, while cobalt-doped BNTs exhibited the best catalytic activity toward the HER among 12 different transition metal-doped BNTs.![]()
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Affiliation(s)
- Jiajie Lu
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiuli Hou
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Beibei Xiao
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Xuejian Xu
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jianli Mi
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Peng Zhang
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China
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Hagopian A, Falcone A, Ben Yahia M, Filhol JS. Ab initiomodelling of interfacial electrochemical properties: beyond implicit solvation limitations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:304001. [PMID: 34108293 DOI: 10.1088/1361-648x/ac0207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
First-principles calculations are an important tool to investigate the complex processes occurring at solid/liquid interfaces which are at the heart of modern technologies. Currently, capturing the whole electrochemical environment at an interface, including the applied potential and solvation, still remains challenging as it necessitates to couple different approaches whose interactions are not fully understood. In this work, a grand canonical density functional theory approach is coupled with solvation models to investigate the electrochemical interfaces under applied potential. We show that a parametrized polarizable continuum model (PCM) which represent solvation in a mean field approach by a continuous polarizable media, possesses catastrophic limitations for the modelling of ionic and charged interfaces. We reveal the origin of PCM instabilities under chemical or electrochemical strong oxidation to be the consequence of a phase transition in the surface Li electronic structure. Thus, PCM undergoes an unphysical response to this phase transition by penetrating within the atomic radius of surface Li atoms. To recover a physical response, an explicit first solvation shell has to be included in addition to the PCM in order to properly describe the electrochemistry of the interface. The Fukui functions show that the first solvation shell becomes involved in the redox process as solvent electron doublet is transferred to the acidic Li+. If another explicit solvent layer is added, the interface electrochemical properties become independent of the PCM parameters: in particular capacitance can then be computed from a parameter-free electrochemical approach. This is an important conclusion as the experimental electrochemical capacitance are not easily found and thus the parametrization of the PCM for electrochemical interface can be difficult. This approach can easily be applied to investigate electrochemical properties at the atomic scale and generalized to any electrochemical device for which interfaces play a crucial role.
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Affiliation(s)
- Arthur Hagopian
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
- RS2E French network on Electrochemical Energy Storage, FR5439, Amiens, France
| | - Aurélie Falcone
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
- RS2E French network on Electrochemical Energy Storage, FR5439, Amiens, France
| | - Mouna Ben Yahia
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
- RS2E French network on Electrochemical Energy Storage, FR5439, Amiens, France
| | - Jean-Sébastien Filhol
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
- RS2E French network on Electrochemical Energy Storage, FR5439, Amiens, France
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18
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Cahyanto WT, Zulaehah S, Widanarto W, Abdullatif F, Effendi M, Kasai H. Theoretical Study of an almost Barrier-Free Water Dissociation on a Platinum (111) Surface Alloyed with Ruthenium and Molybdenum. ACS OMEGA 2021; 6:10770-10775. [PMID: 34056231 PMCID: PMC8153754 DOI: 10.1021/acsomega.1c00389] [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: 01/21/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
A theoretical study based on density functional theory for H2O dissociation on the metal surface of Pt(111) alloyed simultaneously with Ru and Mo was performed. The determination of the minimum energy path using the climbing image nudged elastic band (CI-NEB) method shows that the dissociation reaction of H2O with this catalyst requires almost no energy cost. This dissociation reaction is not only kinetically favored but also almost thermodynamically neutral and somewhat exothermic. The electronic structure analysis showed that much more charge was released in Mo and was used to bind the adsorbed hydroxyl (OHad). Further analyses of the density of states (DOS) showed that the large number of orbitals that overlap when OH binds to Mo are responsible for the stabilization of the OH-surface bond. The stability of the OHad fragment on the surface is believed to be a descriptor for the dissociation of H2O with an almost spontaneous process.
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Affiliation(s)
- Wahyu Tri Cahyanto
- Department
of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno Utara, Grendeng, Purwokerto 53122, Indonesia
| | - Siti Zulaehah
- Department
of Mechanical Engineering, Universitas Perwira
Purbalingga, Jl. S. Parman
No. 53, Purbalingga 53313, Indonesia
| | - Wahyu Widanarto
- Department
of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno Utara, Grendeng, Purwokerto 53122, Indonesia
| | - Farzand Abdullatif
- Department
of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno Utara, Grendeng, Purwokerto 53122, Indonesia
| | - Mukhtar Effendi
- Department
of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno Utara, Grendeng, Purwokerto 53122, Indonesia
| | - Hideaki Kasai
- Osaka
University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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19
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Abidi N, Lim KRG, Seh ZW, Steinmann SN. Atomistic modeling of electrocatalysis: Are we there yet? WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1499] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nawras Abidi
- Univ Lyon, Ens de Lyon, CNRS UMR 5182 Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon France
| | - Kang Rui Garrick Lim
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR) Singapore
| | - Zhi Wei Seh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR) Singapore
| | - Stephan N. Steinmann
- Univ Lyon, Ens de Lyon, CNRS UMR 5182 Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon France
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