1
|
Ngoc HV. Adsorption of N, He and Ne on CGe nanoribbons for sensing and optoelectronic applications. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231836. [PMID: 38545616 PMCID: PMC10966396 DOI: 10.1098/rsos.231836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/06/2024] [Accepted: 02/27/2024] [Indexed: 04/26/2024]
Abstract
Research into nanomaterials yields numerous exceptional applications in contemporary science and technology. The subject of this investigation is a one-dimensional nanostructure, six atoms wide, featuring hydrogen-functionalized edges. The theoretical foundation of this study relies on Density Functional Theory (DFT) and is executed through the utilization of the Vienna Ab initio Simulation Package (VASP). The outcomes demonstrate the stability of adsorption configurations, along with the preservation of a hexagonal honeycomb lattice. The pristine configuration, characterized by a wide bandgap, is well-suited for optoelectronic applications, whereas adsorption configurations find their application in gas sensing. Nitrogen (N) adsorption transforms the semiconducting system into a semimetallic one, with the spin-up state showing semiconductor characteristics and the spin-down state exhibiting metallic attributes. The intricate multi-orbital hybridization is explored through the analysis of partial states. While the pristine system remains non-magnetic, N adsorption introduces a magnetic moment of 0.588 μB. The examination of charge density differences indicates a significant charge transfer from N to the CGe substrate surface. Optical properties are systematically investigated, encompassing the dielectric function, absorption coefficient and electron-hole density. Notably, the real part of the dielectric function exhibits negative values, a result that holds promise for future communication applications.
Collapse
Affiliation(s)
- Hoang Van Ngoc
- Center for Forecasting Study, Institute of Southeast Vietnamese Studies, Thu Dau Mot University, Thu Dau Mot, Binh Duong province, Vietnam
| |
Collapse
|
2
|
Ngoc HV, Ha CV. C, Ge-doped h-BN quantum dot for nano-optoelectronic applications. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:195701. [PMID: 38316058 DOI: 10.1088/1361-648x/ad2673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
Emerging materials, particularly nanomaterials, constitute an enduring focal point of scientific inquiry, with quantum dots being of particular interest. This investigation is centered on elucidating the exceptional structural, electromagnetic, and optical characteristics of hexagonal boron nitride (h-BN) quantum dots and h-BN quantum dots doped with carbon (C) and germanium (Ge). The employed methodology in this study hinges on density functional theory coupled with the Vienna Ab initio simulation package. The outcomes of this research unveil the structural stability of hexagonal honeycomb structures upon optimization. Comprehensive examinations encompassing structural properties, electromagnetic characteristics, and charge density variations have been systematically conducted. Furthermore, this work delves into the elucidation of multi-orbital hybridizations that give rise toσbonds andπbonds. Notably, the outcomes of the optical property analysis divulge intriguing observations. Specifically, the absorption coefficient exhibits zero values within select energy ranges within the visible light spectrum, a phenomenon observed in both pristine and C-doped configurations. This discovery underscores the material's optical transparency at these specific radiation energies. Additionally, the 0xand 0ycomponents of the dielectric function display negative values across particular energy ranges, a characteristic that holds significant promise for potential applications in nanotechnology communications, offering minimal energy loss.
Collapse
Affiliation(s)
- Hoang Van Ngoc
- Center for Forecasting Study, Institute of Southeast Vietnamese Studies, Thu Dau Mot University, Thu Dau Mot, Binh Duong Province, Vietnam
| | - Chu Viet Ha
- Thai Nguyen University of Education, Thai Nguyen City, Thai Nguyen Province, Vietnam
| |
Collapse
|
3
|
Bijoy TK, Sudhakaran S, Lee SC. WS 2-Graphene van der Waals Heterostructure as Promising Anode Material for Lithium-Ion Batteries: A First-Principles Approach. ACS OMEGA 2024; 9:6482-6491. [PMID: 38371824 PMCID: PMC10870414 DOI: 10.1021/acsomega.3c06559] [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: 08/31/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 02/20/2024]
Abstract
In this work, we report the results of density functional theory (DFT) calculations on a van der Waals (VdW) heterostructure formed by vertically stacking single-layers of tungsten disulfide and graphene (WS2/graphene) for use as an anode material in lithium-ion batteries (LIBs). The electronic properties of the heterostructure reveal that the graphene layer improves the electronic conductivity of this hybrid system. Phonon calculations demonstrate that the WS2/graphene heterostructure is dynamically stable. Charge transfer from Li to the WS2/graphene heterostructure further enhances its metallic character. Moreover, the Li binding energy in this heterostructure is higher than that of the Li metal's cohesive energy, significantly reducing the possibility of Li-dendrite formation in this WS2/graphene electrode. Ab initio molecular dynamics (AIMD) simulations of the lithiated WS2/graphene heterostructure show the system's thermal stability. Additionally, we explore the effect of heteroatom doping (boron (B) and nitrogen (N)) on the graphene layer of the heterostructure and its impact on Li-adsorption ability. The results suggest that B-doping strengthens the Li-adsorption energy. Notably, the calculated open-circuit voltage (OCV) and Li-diffusion energy barrier further support the potential of this heterostructure as a promising anode material for LIBs.
Collapse
Affiliation(s)
- T. K. Bijoy
- Indo-Korea
Science and Technology Center (IKST), Third Floor, Windsor, NCC Urban Building, New Airport Road, Yelahanka, Bengaluru 560065, India
| | - Sooryadas Sudhakaran
- Mechanical
Engineering Department, National Institute
of Technology Calicut, Calicut, Kerala 673601, India
| | - Seung-Cheol Lee
- Indo-Korea
Science and Technology Center (IKST), Third Floor, Windsor, NCC Urban Building, New Airport Road, Yelahanka, Bengaluru 560065, India
- Electronic
Materials Research Center, KIST, Seoul 136-791, South Korea
| |
Collapse
|
4
|
Khan U, Saeed MU, Elansary HO, Moussa IM, Bacha AUR, Saeed Y. A DFT study of bandgap tuning in chloro-fluoro silicene. RSC Adv 2024; 14:4844-4852. [PMID: 38323019 PMCID: PMC10844927 DOI: 10.1039/d3ra07452h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/09/2024] [Indexed: 02/08/2024] Open
Abstract
The structural, electronic and optical properties of silicene and its derivatives are investigated in the present work by employing density functional theory (DFT). The Perdew-Burke-Ernzerhof generalized gradient approximation (PBE-GGA) is used as the exchange-correlation potential. Our results provide helpful insight for tailoring the band gap of silicene via functionalization of chlorine and fluorine. First, relaxation of all the materials is performed to obtain the appropriate structural parameters. Cl-Si showed the highest lattice parameter 4.31 Å value, while it also possesses the highest buckling of 0.73 Å among all the derivatives of silicene. We also study the electronic charge density, charge difference density and electrostatic potential, to check the bonding characteristics and charge transfer between Si-halides. The electronic properties, band structures and density of states (DOS) of all the materials are calculated using the PBE-GGA as well as the modified Becke-Johnson (mBJ) on PBE-GGA. Pristine silicene is found to have a negligibly small band gap but with the adsorption of chlorine and fluorine atoms, its band gap can be opened. The band gap of Cl-Si and F-Si is calculated to be 1.7 eV and 0.6 eV, respectively, while Cl-F-Si has a band gap of 1.1 eV. Moreover, the optical properties of silicene and its derivatives are explored, which includes dielectric constants ε1 and ε2, refractive indices n, extinction coefficients k, optical conductivity σ and absorption coefficients I. The calculated binding energies and phonon band structures confirm the stability of Cl-Si, Cl-F-Si, and F-Si. We also calculated the photocatalytic properties which show silicine has a good response to reduction, and the other materials to oxidation. A comparison of our current work to recent work in which graphene was functionalized with halides, is also presented and we observe that silicene is a much better alternative for graphene in terms of semiconductors and photovoltaics applications.
Collapse
Affiliation(s)
- Uzair Khan
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
| | - M Usman Saeed
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
| | - Hosam O Elansary
- Department of Plant Production, College of Food Agriculture Sciences, King Saud University Riyadh 11451 Saudi Arabia
| | - Ihab Mohamed Moussa
- Department of Botany and Microbiology, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Aziz-Ur-Rahim Bacha
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Shenzhen 518055 P. R. China
| | - Y Saeed
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
| |
Collapse
|
5
|
Zhao X, Chen H, Wang J, Niu X. A weakened Fermi level pinning induced adsorption energy non-charge-transfer mechanism during O 2 adsorption in silicene/graphene heterojunctions. Phys Chem Chem Phys 2024; 26:3525-3530. [PMID: 38206617 DOI: 10.1039/d3cp05139k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Understanding the mechanisms of gas adsorption on a solid surface and making this process tunable are of great significance in fundamental science and industrial applications. Bond creation and charge transfer are often used to explain the origin of adsorption energy (Ead). However, in this study, a new mechanism is observed in O2 adsorption on pure silicene (PS) and silicene/graphene heterojunction (SGH) surfaces, in which the charge distribution remains almost unchanged, but Ead still has a significant change in the order of 0.3 eV. The weakened Fermi level pinning effect is found to be responsible for this interesting behavior and the variation of Ead is approximately equal to the change of work function. Furthermore, this effect is independent of the twist angles in the van der Waals SGH. Our results are consistent with experimental observations in overcoming the degradation of silicene in air.
Collapse
Affiliation(s)
- Xuhong Zhao
- School of Materials and Energy, University of Electronic Science and Technology of China, Xiyuan Avenue, Chengdu, 611731, China.
| | - Haiyuan Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Xiyuan Avenue, Chengdu, 611731, China.
| | - Jianwei Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Xiyuan Avenue, Chengdu, 611731, China.
| | - Xiaobin Niu
- School of Materials and Energy, University of Electronic Science and Technology of China, Xiyuan Avenue, Chengdu, 611731, China.
| |
Collapse
|
6
|
Ali M, Yousaf M, Munir J, Iqbal Khan MJ. Achieving controllable multifunctionality through layer sliding. J Mol Graph Model 2024; 126:108638. [PMID: 37757650 DOI: 10.1016/j.jmgm.2023.108638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Dynamical variation of physical properties in a controllable fashion provides exciting possibilities to obtain multifunctional materials. In this work, layer-sliding is employed to modify the structural, interfacial electronic and optical properties of unintercalated and Mg-intercalated two-dimensional (2D) van der Waals heterostructure (vdW-HS) consisting of buckled silicene and hexagonal boron nitride (hBN). The most stable stacking configuration of silicene over hBN is screened out and then intercalated with Mg at the interface. Dynamical-dependent changes in the properties of vdW-HS are performed by sliding silicene over hBN monolayer in the absence and presence of the intercalant. Layer-sliding is carried out in equal length intervals, and various parametric quantities related to the physical characteristics of the vdW-HS are repeatedly calculated and compared. Apart from various parametric quantities, stability of unintercalated and Mg-intercalated vdW-HS is also checked by means of relative total energies, binding energies and vdW gaps along the sliding pathway. Comparison of binding energies shows that the un-slided, half-slided, and fully-slided Mg-intercalated vdW-HS are 1.52, 1.44 and 1.42 eV more stable than the unintercalated vdW-HS. Opening of a small band gap of 12, 31 and 28 meV for un-slided, half-slided and fully-slided unintercalated vdW-HS, respectively, is worth mentioning. To study the interfacial electronic behavior, planar average charge density difference (Δρ) and charge transfer (ΔQ) are also calculated and varied via layer-sliding. Further, we calculated diverse optical spectra such as the complex dielectric function (DF), electron energy loss function [L(ω)], diagonal components of dielectric tensor [ε(iω)], refractive index [n(ω)], extinction coefficient [k(ω)], absorption coefficient [α(ω)], and reflectivity [R(ω)] for un-slided, half-slided and fully-slided unintercalated and Mg-intercalated vdW-HS. Interestingly, the polarization and energy losses have been reduced in the case of Mg-intercalated vdW-HS. The suggested layer-sliding method can be established as a general scheme for bringing multifunctionality into a layered material.
Collapse
Affiliation(s)
- Mubashar Ali
- Department of Physics, University of Education, Lahore, Pakistan
| | - Masood Yousaf
- Department of Physics, University of Education, Lahore, Pakistan.
| | - Junaid Munir
- Department of Physics, Riphah International University, Lahore, Pakistan
| | - M Junaid Iqbal Khan
- Laboratory of Theoretical and Experimental Physics, Department of Physics, Bahauddin Zakariya University, Multan, 60800, Pakistan
| |
Collapse
|
7
|
Fang L, Cao X, Cao Z. Chemical Bonding and Activity of Atomically Dispersed Silicon in Two- and Three-Dimensional Materials. J Phys Chem Lett 2023:11125-11133. [PMID: 38052049 DOI: 10.1021/acs.jpclett.3c02989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
On the basis of the especially tunable electronic property of Si, several kinds of nanomaterials with atomically dispersed Si were constructed and characterized by extensive first-principles calculations and ab initio molecular dynamics (AIMD) simulations. The new-type Si(X≡Y)n wide-bandgap semiconductors featuring through-space d-π* hyperconjugation exhibit unique properties in photoelectric conversion, photoconductivity, structural mechanics, etc. The SiC8 siligraphene with the planar tetracoordinate Si (ptSi) has a high lithium-storage capacity and comparably facile surface migration behaviors of both Li and Li+, making it a promising anode material for high-performance Li-ion batteries. The atomically dispersed Si sites of 2D monolayer materials, such as ptSi and three- and four-coordinated Si atoms, generally exhibit remarkable catalytic activity toward CO2 activation with different electron mechanisms, resulting in different scaling relations between the activity and the p-band center. The computational findings enrich the understanding of structural and chemical properties of silicon and open up avenues for developing Si-based functional materials.
Collapse
Affiliation(s)
- Lei Fang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Xinrui Cao
- Department of Physics and Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Zexing Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| |
Collapse
|
8
|
Liu Q, Guo Z, Wang C, Guo S, Xu Z, Hu C, Liu Y, Wang Y, He J, Wong W. A Cobalt-Based Metal-Organic Framework Nanosheet as the Electrode for High-Performance Asymmetric Supercapacitor. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207545. [PMID: 37088776 PMCID: PMC10288240 DOI: 10.1002/advs.202207545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/27/2023] [Indexed: 05/03/2023]
Abstract
Inspired by the significant advantages of the bottom-up synthesis whose structures and functionalities can be customized by the selection of molecular components, a 2D metal-organic framework (MOF) nanosheet Co-BTB-LB has been synthesized by a liquid-liquid interface-assisted method. The as-prepared Co-BTB-LB is identified by scanning electron microscopy/energy dispersive spectroscopy (SEM/EDX) and X-ray photoelectron spectroscopy (XPS), and the sheet-like structure is verified by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and atomic force microscopy (AFM). Co-BTB-LB electrode exhibits an excellent capacity of 4969.3 F g-1 at 1 A g-1 and good cycling stability with 75% capacity retention after 1000 cycles. The asymmetric supercapacitor device with Co-BTB-LB as the positive electrode shows a maximum energy density of 150.2 Wh kg-1 at a power density of 1619.2 W kg-1 and good cycling stability with a capacitance retention of 97.1% after 10000 cycles. This represents a state-of-the-art performance reported for asymmetric supercapacitor device using electroactive bottom-up metal-complex nanosheet, which will clearly lead to a significant expansion of the applicability of this type of 2D nanomaterials.
Collapse
Affiliation(s)
- Qian Liu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Zengqi Guo
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Cong Wang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Su Guo
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Zhiwei Xu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Chenguang Hu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Yujing Liu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationSchool of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu241000P. R. China
| | - Yalei Wang
- Department of Applied Biology and Chemical Technology and Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHung Hom, KowloonHong KongP. R. China
| | - Jun He
- School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou510006P.R. China
| | - Wai‐Yeung Wong
- Department of Applied Biology and Chemical Technology and Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHung Hom, KowloonHong KongP. R. China
| |
Collapse
|
9
|
Mohammadi MM, Bavi O, Jamali Y. DNA sequencing via molecular dynamics simulation with functionalized graphene nanopore. J Mol Graph Model 2023; 122:108467. [PMID: 37028198 DOI: 10.1016/j.jmgm.2023.108467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/17/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
Through this research, functionalized graphene nanopores are used to verify how effective such an apparatus for DNA sequencing is. The circular symmetric pores are functionalized with hydrogen and a hydroxyl group bonded with carbon atoms of the pore rim. Plus, two adenine bases are also put at the rim perimeter to verify whether such a combination would lead to base detection. A homopolymer of single-stranded DNA (ssDNA) is pulled through a nanopore using steered molecular dynamics (SMD) simulation. Pulling force profile, moving fashion of ssDNA in irreversible DNA pulling as well as the base orientation during translocation relative to the graphene plane, called beta angle, are assessed. Based on the studied parameters, SMD force, and base orientation, the hydrogenated and hydroxylated pores do not show a clear distinction between bases, while the adenine-functionalized pore can distinguish between adenine and cytosine. Therefore, there may be some hope for achieving single-base sequencing, while further research is needed.
Collapse
|
10
|
Hammud HH, Yar M, Bayach I, Ayub K. Covalent Triazine Framework C 6N 6 as an Electrochemical Sensor for Hydrogen-Containing Industrial Pollutants. A DFT Study. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1121. [PMID: 36986015 PMCID: PMC10053058 DOI: 10.3390/nano13061121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Industrial pollutants pose a serious threat to ecosystems. Hence, there is a need to search for new efficient sensor materials for the detection of pollutants. In the current study, we explored the electrochemical sensing potential of a C6N6 sheet for H-containing industrial pollutants (HCN, H2S, NH3 and PH3) through DFT simulations. The adsorption of industrial pollutants over C6N6 occurs through physisorption, with adsorption energies ranging from -9.36 kcal/mol to -16.46 kcal/mol. The non-covalent interactions of analyte@C6N6 complexes are quantified by symmetry adapted perturbation theory (SAPT0), quantum theory of atoms in molecules (QTAIM) and non-covalent interaction (NCI) analyses. SAPT0 analyses show that electrostatic and dispersion forces play a dominant role in the stabilization of analytes over C6N6 sheets. Similarly, NCI and QTAIM analyses also verified the results of SAPT0 and interaction energy analyses. The electronic properties of analyte@C6N6 complexes are investigated by electron density difference (EDD), natural bond orbital analyses (NBO) and frontier molecular orbital analyses (FMO). Charge is transferred from the C6N6 sheet to HCN, H2S, NH3 and PH3. The highest exchange of charge is noted for H2S (-0.026 e-). The results of FMO analyses show that the interaction of all analytes results in changes in the EH-L gap of the C6N6 sheet. However, the highest decrease in the EH-L gap (2.58 eV) is observed for the NH3@C6N6 complex among all studied analyte@C6N6 complexes. The orbital density pattern shows that the HOMO density is completely concentrated on NH3, while the LUMO density is centred on the C6N6 surface. Such a type of electronic transition results in a significant change in the EH-L gap. Thus, it is concluded that C6N6 is highly selective towards NH3 compared to the other studied analytes.
Collapse
Affiliation(s)
- Hassan H. Hammud
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Muhammad Yar
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, KPK, Islamabad 22060, Pakistan
| | - Imene Bayach
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, KPK, Islamabad 22060, Pakistan
| |
Collapse
|
11
|
Lv X, Li N, Li Y, Ma Q, Xie Z, Zhou S. Siloxene Nanosheets and Their Hybrid Gel Glasses for Broad-Band Optical Limiting. Molecules 2023; 28:molecules28052143. [PMID: 36903388 PMCID: PMC10003896 DOI: 10.3390/molecules28052143] [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: 12/22/2022] [Revised: 02/10/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
With the development of laser technology, the research of novel laser protection materials is of great significance. In this work, dispersible siloxene nanosheets (SiNSs) with a thickness of about 1.5 nm are prepared by the top-down topological reaction method. Based on the Z-scan and optical limiting testing under the visible-near IR ranges nanosecond laser, the broad-band nonlinear optical properties of the SiNSs and their hybrid gel glasses are investigated. The results show that the SiNSs have outstanding nonlinear optical properties. Meanwhile, the SiNSs hybrid gel glasses also exhibit high transmittance and excellent optical limiting capabilities. It demonstrates that SiNSs are promising materials for broad-band nonlinear optical limiting and even have potential applications in optoelectronics.
Collapse
Affiliation(s)
- Xugui Lv
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Nan Li
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yunfei Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qingyu Ma
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
- Correspondence: (Q.M.); (Z.X.)
| | - Zheng Xie
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Correspondence: (Q.M.); (Z.X.)
| | - Shuyun Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
12
|
Vallejo Narváez WE, de la Garza CGV, Rodríguez LDS, Fomine S. The CO
2
Reduction Reaction Mechanism on Silicene Nanoflakes. A Theoretical Perspective. ChemistrySelect 2023. [DOI: 10.1002/slct.202203484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Wilmer E. Vallejo Narváez
- Department of Polymers Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Apartado Postal 70–360, CU Coyoacán 04510 Ciudad de México México
| | - Cesar Gabriel Vera de la Garza
- Department of Polymers Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Apartado Postal 70–360, CU Coyoacán 04510 Ciudad de México México
| | - Luis Daniel Solís Rodríguez
- Department of Polymers Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Apartado Postal 70–360, CU Coyoacán 04510 Ciudad de México México
| | - Serguei Fomine
- Department of Polymers Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Apartado Postal 70–360, CU Coyoacán 04510 Ciudad de México México
| |
Collapse
|
13
|
Galashev AY, Vorob’ev AS. Ab Initio Study of the Electronic Properties of a Silicene Anode Subjected to Transmutation Doping. Int J Mol Sci 2023; 24:ijms24032864. [PMID: 36769185 PMCID: PMC9918248 DOI: 10.3390/ijms24032864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
In the present work, the electronic properties of doped silicene located on graphite and nickel substrates were investigated by first-principles calculations method. The results of this modeling indicate that the use of silicene as an anode material instead of bulk silicon significantly improves the characteristics of the electrode, increasing its resistance to cycling and significantly reducing the volume expansion during lithiation. Doping of silicene with phosphorus, in most cases, increases the electrical conductivity of the anode active material, creating conditions for increasing the rate of battery charging. In addition, moderate doping with phosphorus increases the strength of silicene. The behavior of the electronic properties of doped one- and two-layer silicene on a graphite substrate was studied depending on its number and arrangement of phosphorus atoms. The influence of the degree of doping with silicene/Ni heterostructure on its band gap was investigated. We considered the single adsorption of Li, Na, K, and Mg atoms and the polyatomic adsorption of lithium on free-standing silicene.
Collapse
Affiliation(s)
- Alexander Y. Galashev
- Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Sofia Kovalevskaya Str. 22, 620990 Yekaterinburg, Russia
- Institute of Chemical Engineering, Ural Federal University Named after the First President of Russia B.N. Yeltsin Mira St. 19, 620002 Yekaterinburg, Russia
- Correspondence:
| | - Alexey S. Vorob’ev
- Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Sofia Kovalevskaya Str. 22, 620990 Yekaterinburg, Russia
| |
Collapse
|
14
|
Zhou X, Liu F, Chen X, Huang Y, Zhang P, Xiao B, Zhang W, Wang L. First principles investigation on Na-ion storage in two-dimensional boron-rich B 2N, B 3N, and B 5N. Phys Chem Chem Phys 2023; 25:1123-1132. [PMID: 36514966 DOI: 10.1039/d2cp03662b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Na-ion batteries (SIBs) are emerging as a promising alternative to Li-ion batteries for large-scale energy storage in light of abundant Na resources and their low cost. Development of appropriate electrode materials that can conquer some critical issues such as low theoretical storage capacity and sluggish redox kinetics resulting from the larger radius of Na is urgently needed for their practical applications. In this work, boron-rich 2D BxN (x = 2, 3, and 5) has been explored as promising anode materials for high-performance SIBs based on density functional theory calculations. BxN electrodes exhibit moderate affinity toward Na-ions with adsorption energies of -0.41 to -1.21 eV, which allows stable Na-ion intercalation without the formation of metal dendrites. Moreover, both B3N and B5N deliver low diffusion barriers (0.28 and 0.08 eV) for Na-ion migration, guaranteeing a high charging/discharging rate. More importantly, these BxN anodes exhibit not only a remarkably high theoretical capacity of 1129-1313 mA h g-1 but also a low open-circuit voltage (0.45-0.87 V), which is important to achieve high energy density. AIMD simulations have confirmed the excellent cyclability of BxN electrodes during reversible lithiation/delithiation. These results suggested that the BxN electrode could be used as a new lightweight SIB anode with high capacity, cyclability, and desired rate performance.
Collapse
Affiliation(s)
- Xingyi Zhou
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Fang Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Xianfei Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China. .,State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Yi Huang
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China. .,State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Peicong Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China. .,State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Beibei Xiao
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Wentao Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China. .,State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Lianli Wang
- School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| |
Collapse
|
15
|
Balasubramanian K. Relativistic versus Jahn-Teller effects in tantalum and tungsten clusters. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
16
|
Ren B, Lu Y, Wang R, Liu H. First-principles study of chalcogen-bonded self-assembly structures on silicene: some insight into the fabrication of molecular architectures on surfaces through chalcogen bonding. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
17
|
Kim KH, Seo SE, Park CS, Kim S, Lee S, Ryu C, Yong D, Park YM, Kwon OS. Open-Bandgap Graphene-Based Field-Effect Transistor Using Oligo(phenylene-ethynylene) Interfacial Chemistry. Angew Chem Int Ed Engl 2022; 61:e202209726. [PMID: 35969510 PMCID: PMC9826410 DOI: 10.1002/anie.202209726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Indexed: 01/11/2023]
Abstract
Organic interfacial compounds (OICs) are required as linkers for the highly stable and efficient immobilization of bioprobes in nanobiosensors using 2D nanomaterials such as graphene. Herein, we first demonstrated the fabrication of a field-effect transistor (FET) via a microelectromechanical system process after covalent functionalization on large-scale graphene by introducing oligo(phenylene-ethynylene)amine (OPE). OPE was compared to various OICs by density functional theory simulations and was confirmed to have a higher binding energy with graphene and a lower band gap than other OICs. OPE can improve the immobilization efficiency of a bioprobe by forming a self-assembly monolayer via anion-based reaction. Using this technology, Magainin I-conjugated OGMFET (MOGMFET) showed a high sensitivity, high selectivity, with a limit of detection of 100 cfu mL-1 . These results indicate that the OPE OIC can be applied for stable and comfortable interfacing technology for biosensor fabrication.
Collapse
Affiliation(s)
- Kyung Ho Kim
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Sung Eun Seo
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Chul Soon Park
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Soomin Kim
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Soohyun Lee
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Choong‐Min Ryu
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial ResistanceYonsei University College of MedicineSeoulRepublic of Korea
| | - Yoo Min Park
- Division of Nano-Bio Sensors/Chips DevelopmentNational NanoFab Center (NNFC)DaejeonRepublic of Korea
| | - Oh Seok Kwon
- Infectious Disease Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon34141Republic of Korea,College of Biotechnology and BioengineeringSungkyunkwan UniversitySuwon16419Republic of Korea
| |
Collapse
|
18
|
Kalpana P, Akilandeswari L, Yadav VK. [1, 5]-halo shift in perturbed pericyclic system of heterosubstituted pentadienes - a DFT exploration. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02096-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
19
|
Li WZ, He Y, Mao Y, Xiong K. Electronic Properties and Electrocatalytic Water Splitting Activity for Precious-Metal-Adsorbed Silicene with Nonmetal Doping. ACS OMEGA 2022; 7:33156-33166. [PMID: 36157726 PMCID: PMC9494430 DOI: 10.1021/acsomega.2c03388] [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: 05/31/2022] [Accepted: 07/11/2022] [Indexed: 06/16/2023]
Abstract
Since nonmetal (NM)-doped two-dimensional (2D) materials can effectively modulate their physical properties and chemical activities, they have received a lot of attention from researchers. Therefore, the stability, electronic properties, and electrocatalytic water splitting activity of precious-metal (PM)-adsorbed silicene doped with two NM atoms are investigated based on density functional theory (DFT) in this paper. The results show that NM doping can effectively improve the stability of PM-adsorbed silicene and exhibit rich electronic properties. Meanwhile, by comparing the free energies of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) intermediates of 15 more stable NM-doped systems, it can be concluded that the electrocatalytic water splitting activity of the NM-doped systems is more influenced by the temperature. Moreover, the Si-S2-Ir-doped system exhibits good HER performance when the temperature is 300 K, while the Si-N2-Pt-doped system shows excellent OER activity. Our theoretical study shows that NM doping can effectively promote the stability and electrocatalytic water splitting of PM-adsorbed silicene, which can help in the application of silicene in electrocatalytic water splitting.
Collapse
Affiliation(s)
- Wen-Zhong Li
- Department
of Physics, Yunnan University, Kunming 650091, China
| | - Yao He
- Department
of Physics, Yunnan University, Kunming 650091, China
| | - Yong Mao
- Materials
Genome Institute, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Kai Xiong
- Materials
Genome Institute, School of Materials and Energy, Yunnan University, Kunming 650091, China
| |
Collapse
|
20
|
Mondal S, Datta A. Negative Thermal Expansion Induced in Tri-graphene and T-graphene by the Rigid-Unit Modes. J Am Chem Soc 2022; 144:16703-16707. [PMID: 36069493 DOI: 10.1021/jacs.2c05942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Materials which contract on heating (negative thermal expansion, NTE) are of significant interest for advanced applications. Graphene has shown NTE up to 1000 K, which motivates further improvements in two-dimensional carbon to attain superior performance. In this Communication, very large negative thermal expansion coefficients (αT) are reported for tri-graphene (TrG) and T-graphene (TG). Quasi-harmonic approximation calculations show that αT remains negative until 4200 K and 2900 K for TrG and TG, respectively. The high NTE for these systems is understood on the basis of the soft phonon modes, which induce rotation of the 3-membered and the 4-membered rings in TrG and TG, respectively, and ab initio molecular dynamics simulations. The local distortions for the 3-12 rings (in TrG) and 4-8 rings (in TG) have structural resemblance with the rigid-unit modes that are usually envisioned for bulk systems.
Collapse
Affiliation(s)
- Soumya Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, West Bengal, India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, West Bengal, India
| |
Collapse
|
21
|
Goel N, Kushwaha A, Kumar M. Two-dimensional MXenes: recent emerging applications. RSC Adv 2022; 12:25172-25193. [PMID: 36199310 PMCID: PMC9443681 DOI: 10.1039/d2ra04354h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/25/2022] [Indexed: 11/25/2022] Open
Abstract
MXenes, are a rapidly growing family of two-dimensional materials exhibiting outstanding electronic, optical, mechanical, and thermal properties with versatile transition metal and surface chemistries. A wide range of transition metals and surface termination groups facilitate the properties of MXenes to be easily tuneable. Due to the physically strong and environmentally stable nature of MXenes, they have already had a strong presence in different fields, for instance energy storage, electrocatalysis, water purification, and chemical sensing. Some of the newly discovered applications of MXenes showed very promising results, however, they have not been covered in any review article. Therefore, in this review we comprehensively review the recent advancements of MXenes in various potential fields including energy conversion and storage, wearable flexible electronic devices, chemical detection, and biomedical engineering. We have also presented some of the most exciting prospects by combining MXenes with other materials and forming mixed dimensional high performance heterostructures based novel electronic devices.
Collapse
Affiliation(s)
- Neeraj Goel
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology Dwarka 110078 New Delhi India
| | - Aditya Kushwaha
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology Dwarka 110078 New Delhi India
| | - Mahesh Kumar
- Department of Electrical Engineering, Indian Institute of Technology Jodhpur Jodhpur 342011 India
| |
Collapse
|
22
|
Kim KH, Seo SE, Park CS, Kim S, Lee S, Ryu CM, Yong D, Park YM, Kwon OS. Open‐Bandgap Graphene‐based Field‐Effect Transistor Using Oligo(phenylene‐ethynylene) Interfacial Chemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kyung Ho Kim
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Sung Eun Seo
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Chul Soon Park
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Soomin Kim
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Soohyun Lee
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Choong-Min Ryu
- KRIBB: Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center KOREA, REPUBLIC OF
| | - Dongeun Yong
- Yonsei University College of Medicine Department of Laboratory Medicine and Research Institute of Bacterial Resistanc KOREA, REPUBLIC OF
| | - Yoo Min Park
- National NanoFab Center Division of Nano-Bio Sensors/Chips Development KOREA, REPUBLIC OF
| | - Oh Seok Kwon
- Korea Research Institute of Bioscience and Biotechnology Infectious Disease Research Center 125 Gwahak-ro, Yuseong-gu 34141 Daejeon KOREA, REPUBLIC OF
| |
Collapse
|
23
|
Routu S, Malla JMR, Yattirajula SK, Uppala NR. Effect of hydrogen coverage on elastic and optical properties of silicene: a first-principle study. J Mol Model 2022; 28:242. [PMID: 35920915 DOI: 10.1007/s00894-022-05249-x] [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: 12/17/2021] [Accepted: 07/25/2022] [Indexed: 11/27/2022]
Abstract
The structural, electronic, and optical properties of hydrogenated silicene have been investigated using first-principles DFT calculations. Compared to pristine silicene, hydrogenated silicene exhibits high stability, reduced anisotropy, and less birefringence. Hydrogenated silicene shows a constant refractive index in the visible region, increasing exponentially in silicene. The elastic and optical parameters such as Young's modulus (Y), Poisson's ratio (ν), bulk modulus (B), shear modulus (G), dielectric constant ε(0), refractive index n(0), conductivity threshold (Eth), birefringence Δn(0), and plasmon energy (ħωp) were calculated for the first time for different hydrogen coverage on silicene, which is crucial in the applications of linear and non-linear optoelectronic devices. The estimated parameters agree well with the available experimental and reported values.
Collapse
Affiliation(s)
- Santosh Routu
- Department of Electronics and Communication Engineering, V R Siddhartha College of Engineering, Kanuru, Vijayawada, India, 520007.
| | - Jagan Mohan Rao Malla
- Department of Electronics and Communication Engineering, Geetanjali College of Engineering and Technology, Medchal, Hyderabad, India, 501301
| | - Suresh Kumar Yattirajula
- Department of Chemical Engg, Indian Institute of Technology (Indian School of Mines), Dhanbad, India, 826004
| | - Nageswara Rao Uppala
- Department of Electronics and Communication Engineering, Geetanjali College of Engineering and Technology, Medchal, Hyderabad, India, 501301
| |
Collapse
|
24
|
Adsorption of CO2, H2O, H2S, NH3, and NO2 on germanane nanosheet—A density functional study. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113799] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Density-functional-theory simulations of the water and ice adhesion on silicene quantum dots. Sci Rep 2022; 12:8537. [PMID: 35595838 PMCID: PMC9122909 DOI: 10.1038/s41598-022-11943-w] [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: 01/23/2022] [Accepted: 04/01/2022] [Indexed: 11/08/2022] Open
Abstract
The absorption of water and ice on silicon is important to understand for many applications and safety concerns for electronic devices as most of them are fabricated using silicon. Meanwhile, recently silicene nanostructures have attracted much attention due to their potential applications in electronic devices such as gas or humidity sensors. However, for the moment, the theoretical study of the interaction between water molecules and silicene nanostructures is still rare although there is already theoretical work on the effect of water molecules on the silicene periodic structure. The specific conditions such as the finite size effect, the edge saturation of the silicene nanostructure, and the distance between the water/ice and the silicene at the initial onset of the contact have not been carefully considered before. Here we have modelled the absorption of a water molecule and a square ice on the silicene nanodot by using hybrid-exchange density-functional theory, complemented by the Van der Waals forces correction. Three different sizes of silicene nanodots have been chosen for simulations, namely \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$3\times 3$$\end{document}3×3, \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$4\times 4$$\end{document}4×4, and \documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$5\times 5$$\end{document}5×5, with and without the hydrogen saturation on the edge. Our calculations suggest that the silicene nanodots chosen here are both hydrophilic and ice-philic. The water molecule and the square ice have tilted angles towards the silicene nanodot plane at ~ 70º and ~ 45º, respectively, which could be owing to the zig–zag structure on silicene. The absorption energies are size dependent for unsaturated silicene nanodots, whereas almost size independent for the hydrogen saturated cases. Our work on the single water molecule absorption energy on silicene nanodots is qualitatively in agreement with the previous theoretical and experimental work. However, the ice structure on silicene is yet to be validated by the relevant experiments. Our calculation results not only further complement the current paucity of water-to-silicene-nanostructure contact mechanisms, but also lead to the first study of square-ice contact mechanisms for silicene. Our findings presented here could be useful for the future design of semiconducting devices based on silicene nanostructures, especially in the humid and low-temperature environments.
Collapse
|
26
|
Yan S, Zhou Q, Ju W, Li X. Effect of doping and vacancy defect on the sensitivity of stanene toward HCN. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2025938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shumin Yan
- College of Physics and Engineering, Henan University of Science and Technology, Luoyang, People’s Republic of China
| | - Qingxiao Zhou
- College of Physics and Engineering, Henan University of Science and Technology, Luoyang, People’s Republic of China
- Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing Technology, Henan University of Science and Technology, Luoyang, People’s Republic of China
| | - Weiwei Ju
- College of Physics and Engineering, Henan University of Science and Technology, Luoyang, People’s Republic of China
| | - Xiangyang Li
- College of Physics and Engineering, Henan University of Science and Technology, Luoyang, People’s Republic of China
| |
Collapse
|
27
|
Majidi R, Ayesh AI. Engineering the electronic properties of siligraphene sheets by organic molecules: a density functional theory investigation. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1969600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Roya Majidi
- Department of Physics, Shahid Rajaee Teacher Training University, Tehran, Iran
| | - Ahmad I. Ayesh
- Department of Mathematics, Statistics and Physics, Qatar University, Doha, Qatar
| |
Collapse
|
28
|
Rehman J, Fan X, Samad A, Zheng W. Lithiation and Sodiation of Hydrogenated Silicene: A Density Functional Theory Investigation. CHEMSUSCHEM 2021; 14:5460-5469. [PMID: 34590444 DOI: 10.1002/cssc.202101742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/29/2021] [Indexed: 06/13/2023]
Abstract
The next-generation renewable energy machineries necessitate the electrodes with appropriate electrochemical performance. Here, the anodic properties of silicane for Li- and Na-ion batteries were scrutinized employing first-principle calculations. The projected single-layer hydrogen-functionalized Si (Si2 H2 ) structure was energetically, mechanically, dynamically, and thermally stable based on theoretical simulations, confirming its experimental feasibility. The electronic properties revealed the semiconducting nature of silicane on the basis of PBE and HSE06 schemes with an indirect bandgap. As anode material for Li- and Na-ion batteries, hydrogenated silicene showed promising electrochemical performance because of the proper adsorption strength between Si2 H2 and the adsorbed Li and Na. The average open circuit voltages for Li2x Si2 H2 and Na2x Si2 H2 were as low as 0.42 and 0. 64 V, while its specific capacity was as high as 921 and 1842 mAh g-1 for Li and Na, respectively. It also showed ultra-fast diffusion channels for Li and Na ions. The diffusion barriers for Li and Na migrations were as low as 0.18 and 0.14 eV, respectively, which revealed rapid charge/discharge processes using hydrogenated silicene as anode. These important features facilitate silicane as favorable anode material for Li/Na-ion batteries.
Collapse
Affiliation(s)
- Javed Rehman
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences (BUITEMS), Quetta, 87300, Pakistan
| | - Xiaofeng Fan
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Abdus Samad
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130012, P. R. China
| |
Collapse
|
29
|
Mohammadi MM, Bavi O. DNA sequencing: an overview of solid-state and biological nanopore-based methods. Biophys Rev 2021; 14:99-110. [PMID: 34840616 PMCID: PMC8609259 DOI: 10.1007/s12551-021-00857-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/14/2021] [Indexed: 12/23/2022] Open
Abstract
The field of sequencing is a topic of significant interest since its emergence and has become increasingly important over time. Impressive achievements have been obtained in this field, especially in relations to DNA and RNA sequencing. Since the first achievements by Sanger and colleagues in the 1950s, many sequencing techniques have been developed, while others have disappeared. DNA sequencing has undergone three generations of major evolution. Each generation has its own specifications that are mentioned briefly. Among these generations, nanopore sequencing has its own exciting characteristics that have been given more attention here. Among pioneer technologies being used by the third-generation techniques, nanopores, either biological or solid-state, have been experimentally or theoretically extensively studied. All sequencing technologies have their own advantages and disadvantages, so nanopores are not free from this general rule. It is also generally pointed out what research has been done to overcome the obstacles. In this review, biological and solid-state nanopores are elaborated on, and applications of them are also discussed briefly.
Collapse
Affiliation(s)
- Mohammad M Mohammadi
- Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, 71557-13876 Iran
| | - Omid Bavi
- Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, 71557-13876 Iran
| |
Collapse
|
30
|
Krawiec M, Stępniak-Dybala A, Bobyk A, Zdyb R. Magnetism in Au-Supported Planar Silicene. NANOMATERIALS 2021; 11:nano11102568. [PMID: 34685008 PMCID: PMC8540306 DOI: 10.3390/nano11102568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/19/2021] [Accepted: 09/25/2021] [Indexed: 01/10/2023]
Abstract
The adsorption and substitution of transition metal atoms (Fe and Co) on Au-supported planar silicene have been studied by means of first-principles density functional theory calculations. The structural, energetic and magnetic properties have been analyzed. Both dopants favor the same atomic configurations with rather strong binding energies and noticeable charge transfer. The adsorption of Fe and Co atoms do not alter the magnetic properties of Au-supported planar silicene, unless a full layer of adsorbate is completed. In the case of substituted system only Fe is able to produce magnetic ground state. The Fe-doped Au-supported planar silicene is a ferromagnetic structure with local antiferromagnetic ordering. The present study is the very first and promising attempt towards ferromagnetic epitaxial planar silicene and points to the importance of the substrate in structural and magnetic properties of silicene.
Collapse
Affiliation(s)
- Mariusz Krawiec
- Institute of Physics, M. Curie-Sklodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland; (A.S.-D.); (R.Z.)
- Correspondence: ; Tel.: +48-81-537-6146
| | - Agnieszka Stępniak-Dybala
- Institute of Physics, M. Curie-Sklodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland; (A.S.-D.); (R.Z.)
| | - Andrzej Bobyk
- Institute of Computer Science, M. Curie-Sklodowska University, ul. Akademicka 9, 20-031 Lublin, Poland;
| | - Ryszard Zdyb
- Institute of Physics, M. Curie-Sklodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland; (A.S.-D.); (R.Z.)
| |
Collapse
|
31
|
Kumar V, Santosh R. The stability, structural, electronic, and optical properties of hydrogenated silicene under hydrostatic pressures: a first-principle study. J Mol Model 2021; 27:278. [PMID: 34487245 DOI: 10.1007/s00894-021-04895-x] [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: 05/28/2021] [Accepted: 08/30/2021] [Indexed: 11/24/2022]
Abstract
The structural, electronic, and optical properties of hydrogenated silicene have been studied under different hydrostatic pressures using first-principle calculations. The binding energy and band structure have been calculated for chair (C-) and boat (B-) structures, which are having good stability at 0 GPa, 3 GPa, 6 GPa, 9 GPa, 12 GPa, 15 GPa, and 18 GPa hydrostatic pressures. Stability has been verified using binding energy and phonon calculations. The C- and B-structures have become metallic and unstable at 21 GPa. The optical properties of B-configuration have been studied in the energy range of 0-20 eV. Five optical parameters such as conductivity threshold (σth), dielectric constant ε(0), refractive index n(0), birefringence Δn(0), and plasmon energy (ħωp) have been calculated for the first time under different hydrostatic pressures. The calculated values are in good agreement with the reported values at 0 GPa.
Collapse
Affiliation(s)
- V Kumar
- Department of Electronics Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
| | - R Santosh
- Department of Electronics and Communication Engineering, Geetanjali College of Engineering and Technology, Medchal, Hyderabad, 501301, India
| |
Collapse
|
32
|
Ma L, Song X, Yu Y, Chen Y. Two-Dimensional Silicene/Silicon Nanosheets: An Emerging Silicon-Composed Nanostructure in Biomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008226. [PMID: 34050575 DOI: 10.1002/adma.202008226] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Indexed: 05/15/2023]
Abstract
Silicon-composed nanomedicines are one of the most representative inorganic nanosystems in theranostic biomedicine. The emerging of new family members of silicon-composed nanosystems substantially contributes to their further clinical translation. 2D silicene/silicon nanosheets have recently been developed as an emerging topology of silicon-composed nanoparticles, which features unique planar nanostructure with large surface area, abundant surface chemistry, specific physiochemical property, and desirable biological effects. This progress report highlights and discusses the state-of-art developments of the elaborate construction of 2D silicene/silicon nanosheets for versatile biomedical applications, including top-down fabrication, multifunctionalization, surface engineering, and their available biomedical applications in tumor theranostics (e.g., bioimaging, photothermal ablation, chemotherapy, chemoreactive nanotherapy, radiotherapy, and synergistic nanotherapy) and antibacteria. Their large surface area originating from 2D nanostructure not only enables efficient loading and delivery of chemotherapeutic drugs, but also guarantees the multifunctionalization. Especially, 2D silicene/silicon nanosheets harness desirable photothermal-conversion performance for photonic hyperthermia and photoacoustic imaging in the near infrared biowindow, accompanied with the desirable biodegradability and biocompatibility, which is typically not possessed in other silicon-composed counterparts. The multivariate analysis on the facing challenges and future developments of these 2D silicene/silicon nanosheets have also been conducted and outlooked for further underpinning their clinical translations.
Collapse
Affiliation(s)
- Lifang Ma
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Xinran Song
- School of Life Sciences, Shanghai University, Shanghai, 2000444, P. R. China
| | - Yongchun Yu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Yu Chen
- School of Life Sciences, Shanghai University, Shanghai, 2000444, P. R. China
| |
Collapse
|
33
|
Takahashi M. Flat Zigzag Silicene Nanoribbon with Be Bridge. ACS OMEGA 2021; 6:12099-12104. [PMID: 34056363 PMCID: PMC8154158 DOI: 10.1021/acsomega.1c00794] [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: 02/11/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
The emergence of flat one- and two-dimensional materials, such as graphene and its nanoribbons, has promoted the rapid advance of the current nanotechnology. Silicene, a silicon analogue of graphene, has the great advantage of its compatibility with the present industrial processes based on silicon nanotechnology. The most significant issue for silicene is instability in the air due to the nonplanar puckered (buckled) structure. Another critical problem is that silicene is usually synthesized by epitaxial growth on a substrate, which strongly affects the π conjugated system of silicene. The fabrication of free-standing silicene with a planar configuration has long been pursued. Here, we report the strategy and design to realize the flat zigzag silicene nanoribbon. We theoretically investigated the stability of various silicene nanoribbons with substituents at the zigzag edges and found that zigzag silicene nanoribbons with beryllium (Be) bridges are very stable in a planar configuration. The obtained zigzag silicene nanoribbon has an indirect negative band gap and is nonmagnetic unlike the magnetic buckled silicene nanoribbons with zigzag edges. The linearly dispersive behavior of the π and π* bands associated with the out-of-plane 3psi and 2pBe orbitals is clearly observed, showing the existence of a Dirac point slightly above the Fermi level. We also observed that spin-orbit coupling induces a gap opening at the Dirac point.
Collapse
|
34
|
Hernández-López L, Piquero-Zulaica I, Downing CA, Piantek M, Fujii J, Serrate D, Ortega JE, Bartolomé F, Lobo-Checa J. Searching for kagome multi-bands and edge states in a predicted organic topological insulator. NANOSCALE 2021; 13:5216-5223. [PMID: 33661272 DOI: 10.1039/d0nr08558h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, mixed honeycomb-kagome lattices featuring metal-organic networks have been theoretically proposed as topological insulator materials capable of hosting nontrivial edge states. This new family of so-called "organic topological insulators" are purely two-dimensional and combine polyaromatic-flat molecules with metal adatoms. However, their experimental validation is still pending given the generalized absence of edge states. Here, we generate one such proposed network on a Cu(111) substrate and study its morphology and electronic structure with the purpose of confirming its topological properties. The structural techniques reveal a practically flawless network that results in a kagome network multi-band observed by angle-resolved photoemission spectroscopy and scanning tunneling spectroscopy. However, at the network island borders we notice the absence of edge states. Bond-resolved imaging of the network exhibits an unexpected structural symmetry alteration that explains such disappearance. This collective lifting of the network symmetry could be more general than initially expected and provide a simple explanation for the recurrent experimental absence of edge states in predicted organic topological insulators.
Collapse
Affiliation(s)
- Leyre Hernández-López
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Ignacio Piquero-Zulaica
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain and Physics Department E20, Technical University of Munich, 85748 Garching, Germany
| | - Charles A Downing
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain and Department of Physics and Astronomy, University of Exeter, Exeter EX4 4QL, UK
| | - Marten Piantek
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain and Laboratorio de Microscopías Avanzadas, Universidad de Zaragoza, E-50018, Zaragoza, Spain
| | - Jun Fujii
- Istituto Officina dei Materiali (IOM)-CNR Laboratorio TASC, 34149 Trieste, Italy
| | - David Serrate
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - J Enrique Ortega
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain and Departamento Física Aplicada I, Universidad del País Vasco, 20018-San Sebastian, Spain and Donostia International Physics Center, Paseo Manuel de Lardizabal 4, E-20018 San Sebastian, Spain
| | - Fernando Bartolomé
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Jorge Lobo-Checa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain. and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| |
Collapse
|
35
|
Nan J, Guo X, Xiao J, Li X, Chen W, Wu W, Liu H, Wang Y, Wu M, Wang G. Nanoengineering of 2D MXene-Based Materials for Energy Storage Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1902085. [PMID: 31290615 DOI: 10.1002/smll.201902085] [Citation(s) in RCA: 158] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/12/2019] [Indexed: 05/22/2023]
Abstract
2D MXene-based nanomaterials have attracted tremendous attention because of their unique physical/chemical properties and wide range of applications in energy storage, catalysis, electronics, optoelectronics, and photonics. However, MXenes and their derivatives have many inherent limitations in terms of energy storage applications. In order to further improve their performance for practical application, the nanoengineering of these 2D materials is extensively investigated. In this Review, the latest research and progress on 2D MXene-based nanostructures is introduced and discussed, focusing on their preparation methods, properties, and applications for energy storage such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, and supercapacitors. Finally, the critical challenges and perspectives required to be addressed for the future development of these 2D MXene-based materials for energy storage applications are presented.
Collapse
Affiliation(s)
- Jianxiao Nan
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Xin Guo
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
| | - Jun Xiao
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Xiao Li
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Weihua Chen
- Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Wenjian Wu
- Department of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, P. R. China
| | - Hao Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
| | - Yong Wang
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Minghong Wu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Guoxiu Wang
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
| |
Collapse
|
36
|
Pan W, Zhao B, Qi N, Chen Z. Pt-embedded bismuthene as a promising single-atom catalyst for CO oxidation: A first-principles investigation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Li Y, Wang M, Ding YQ, Zhao CY, Ma JB. Consecutive methane activation mediated by single metal boride cluster anions NbB 4. Phys Chem Chem Phys 2021; 23:12592-12599. [PMID: 34047332 DOI: 10.1039/d1cp01418h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cleavage of all C-H bonds in two methane molecules by gas-phase cluster ions at room temperature is a challenging task. Herein, mass spectrometry and quantum chemical calculations have been used to identify one single metal boride cluster anions NbB4- that can activate eight C-H bonds in two methane molecules and release one H2 molecule each time under thermal collision conditions. In these consecutive reactions, the loaded Nb atoms and the support B4 units play different roles but act synergistically to activate CH4, which is responsible for the interesting reactivity of NbB4-. Moreover, there are some mechanistic differences in these two reactions, including the mechanisms for the first C-H bond activation steps, dihydrogen desorption sites, and major electron donors. This study shows that non-noble metal boride species are reactive enough to facilitate thermal C-H bond cleavages, and boron-based materials may be one kind of potential support material facilitating surface hydrogen transport.
Collapse
Affiliation(s)
- Ying Li
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Ming Wang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Yong-Qi Ding
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Chong-Yang Zhao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Jia-Bi Ma
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| |
Collapse
|
38
|
Bersuker IB. Jahn–Teller and Pseudo-Jahn–Teller Effects: From Particular Features to General Tools in Exploring Molecular and Solid State Properties. Chem Rev 2020; 121:1463-1512. [DOI: 10.1021/acs.chemrev.0c00718] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Isaac B. Bersuker
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| |
Collapse
|
39
|
Younis U, Muhammad I, Wu W, Ahmed S, Sun Q, Jena P. Assembling Si 2BN nanoribbons into a 3D porous structure as a universal anode material for both Li- and Na-ion batteries with high performance. NANOSCALE 2020; 12:19367-19374. [PMID: 32945313 DOI: 10.1039/d0nr05143h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of anode materials is critical to the success of sodium ion batteries (SIBs). Because of the size difference between Li and Na, the commercial anode material graphite in Li-ion batteries does not work for Na-ion batteries. Thus, it will be ideal if some universal anode materials could work for both Li- and Na-ion batteries with high performance. Inspired by a recent study on the high performance of a 2D-Si2BN sheet as an anode material for Li-ion batteries, we design a three dimensional (3D) porous structure by using the nanoribbons of a Si2BN sheet as building blocks. Based on the state-of-the-art ab initio calculations, we find that the resulting 3D porous Si2BN structure is stable chemically, dynamically and thermally, exhibiting a high specific capacity of 512.42 (341.61 mA h g-1), a low voltage of 0.27 V (0.15 V), a small volume expansion of 2.5% (2.7%), and a low migration energy barrier of 0.44 eV (0.19 eV) for Li- (Na-) ion batteries. These intriguing features, together with the light mass and rich abundance of Si, B and N, suggest that the 3D porous Si2BN structure is a promising candidate for the anode material of both Li- and Na-ion batteries.
Collapse
Affiliation(s)
- Umer Younis
- Department of Materials Science and Engineering, Peking University, Beijing 100871, China.
| | - Imran Muhammad
- Department of Materials Science and Engineering, Peking University, Beijing 100871, China.
| | - Wei Wu
- Department of Materials Science and Engineering, Peking University, Beijing 100871, China.
| | - S Ahmed
- Center for Advancing Materials Performance from the Nanoscale, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qiang Sun
- Department of Materials Science and Engineering, Peking University, Beijing 100871, China. and Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - Puru Jena
- Department of Physics, Virginia Commonwealth University, Richmond, VA 23284, USA
| |
Collapse
|
40
|
Ashwin Kishore MR, Larsson K, Ravindran P. Two-Dimensional CdX/C 2N (X = S, Se) Heterostructures as Potential Photocatalysts for Water Splitting: A DFT Study. ACS OMEGA 2020; 5:23762-23768. [PMID: 32984695 PMCID: PMC7513353 DOI: 10.1021/acsomega.0c02804] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Global environmental issues, in addition to limited fossil fuel resources, are being addressed by quests in search of efficient visible-light-driven water splitting catalysts for hydrogen production. The photocatalytic water splitting activities of CdX/C2N (X = S, Se) heterostructures have been investigated here using hybrid density functional theory calculations. The calculated band gaps of CdS/C2N and CdSe/C2N heterostructures are 1.48 and 2.12 eV, respectively. These are ideal band gap values that make possible harvesting of more visible light from the solar spectrum, which will result in high solar to energy conversion efficiencies. Charge density difference analysis shows that the charge redistributions mainly occur in the interface regions and that the charges transfer from the C2N to CdX layers. It is interesting to note that the CdX/C2N heterostructures possess a type-II band alignment, where the relative band alignment of the C2N and CdX monolayers promotes a spatial separation of the electrons (that resides in C2N) and holes (that resides in CdX). Importantly, the band edges of the heterostructures straddle the water redox potential under different pH conditions. This study demonstrates that the CdS/C2N and CdSe/C2N heterostructures are suitable materials to split water (from various sources) in different ranges of pH values.
Collapse
Affiliation(s)
- M. R. Ashwin Kishore
- Department
of Chemistry, Ångström Laboratory, Uppsala University, Uppsala Box 538 751 21, Sweden
| | - Karin Larsson
- Department
of Chemistry, Ångström Laboratory, Uppsala University, Uppsala Box 538 751 21, Sweden
| | - Ponniah Ravindran
- Department
of Physics, Central University of Tamil
Nadu, Thiruvarur, Tamil Nadu 610101, India
- Simulation
Center for Atomic and Nanoscale MATerials, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu 610101, India
| |
Collapse
|
41
|
Parambil PC, Perumal SSRR. Lewis Base/Acid Coordination Stabilizes Planar 6π Aromatic Si6/P6. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | - Sathya S. R. R. Perumal
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
| |
Collapse
|
42
|
Mocci P, Malloci G, Bosin A, Cappellini G. Time-Dependent Density Functional Theory Investigation on the Electronic and Optical Properties of Poly-C,Si,Ge-acenes. ACS OMEGA 2020; 5:16654-16663. [PMID: 32685832 PMCID: PMC7364637 DOI: 10.1021/acsomega.0c01516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 06/03/2020] [Indexed: 06/02/2023]
Abstract
We report a comparative computational investigation on the first six members of linear poly-C,Si,Ge-acenes (X4n+2H2n+4, X = C,Si,Ge; n = 1, 2, 3, 4, 5, 6). We performed density functional theory (DFT) and time-dependent DFT calculations to compare morphological, electronic, and optical properties. While C-acenes are planar, Si- and Ge-acenes assume a buckled configuration. Electronic properties show similar trends as a function of size for all families. In particular, differently from C-based compounds, in the case of both Si- and Ge-acenes, the excitation energies of the strongest low-lying electronic transition (β peaks) span the visible region of the spectrum, demonstrating their size tunability. For all families, we assessed the plasmonic character of this transition and found a linear relationship for the wavelength-dependence of the β peaks as a function of the number of rings. A similar slope of about 56 nm is observed for Si- and Ge-acenes, although the peak positions of the former are located at lower wavelengths. Outcomes of this study are compared with existing theoretical results for 2D lattices and nanoribbons, and experiments where available.
Collapse
Affiliation(s)
- Paola Mocci
- Department of Physics, University of Cagliari, S.P. 8 Km 0,7, I-09042 Monserrato CA, Italy
| | - Giuliano Malloci
- Department of Physics, University of Cagliari, S.P. 8 Km 0,7, I-09042 Monserrato CA, Italy
| | - Andrea Bosin
- Department of Physics, University of Cagliari, S.P. 8 Km 0,7, I-09042 Monserrato CA, Italy
| | - Giancarlo Cappellini
- Department of Physics, University of Cagliari, S.P. 8 Km 0,7, I-09042 Monserrato CA, Italy
| |
Collapse
|
43
|
Evaluation of the Morse potential function coefficients for germanene by the first principles approach. J Mol Graph Model 2020; 98:107589. [DOI: 10.1016/j.jmgm.2020.107589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/21/2022]
|
44
|
Tran NTT, Gumbs G, Nguyen DK, Lin MF. Fundamental Properties of Metal-Adsorbed Silicene: A DFT Study. ACS OMEGA 2020; 5:13760-13769. [PMID: 32566841 PMCID: PMC7301544 DOI: 10.1021/acsomega.0c00905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Sodium, magnesium, and aluminum adatoms, which possess one, two, and three valence electrons, respectively, in terms of 3s, 3s2, and (3s2, 3p) orbitals, are very suitable for helping us understand adsorption-induced diverse phenomena. In this work, the revealing properties of metal (Na/Mg/Al)-adsorbed graphene systems are investigated by means of the first-principles method. The single- and double-sided chemisorption cases, the various adatom concentrations, the hollow/top/valley/bridge sites, and the buckled structures are taken into account. The hollow and valley adsorptions that correspond to the Na/Mg and Al cases, respectively, create extremely nonuniform environments. This leads to diverse orbital hybridizations in Na/Mg/Al-Si bonds, as indicated by the Na/Mg/Al-dominated bands, as well as the spatial charge density distributions and the orbital-projected density of states (DOS). Out of three types of metal-adatom adsorptions, the Al-adsorption configurations produce the strongest chemical modifications. The ferromagnetic configurations have been shown to survive only in specific Mg and Al adsorptions, but not in the Na cases. The presented theoretical predictions could be verified experimentally, and potential applications are discussed. Additionally, important similarities and differences with graphene-related systems are examined.
Collapse
Affiliation(s)
- Ngoc Thanh Thuy Tran
- Hierarchical
Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 701, Taiwan
| | - Godfrey Gumbs
- Department
of Physics and Astronomy, Hunter College
of the City University of New York, New York, New York 10065, United States
| | - Duy Khanh Nguyen
- Laboratory
of Applied Physics, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Ming-Fa Lin
- Hierarchical
Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 701, Taiwan
- Department
of Physics, National Cheng Kung University, Tainan 701, Taiwan
- Quantum Topological
Center, National Cheng Kung University, Tainan 701, Taiwan
| |
Collapse
|
45
|
Zhang X, Liu Y, Huang Q. Stable halogen 2D materials: the case of iodine and astatine. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:335301. [PMID: 32268317 DOI: 10.1088/1361-648x/ab87cf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) materials have applications towards electronic devices, energy storages, and catalysis,et al. So far, most of elemental 2D materials are composed based on groups IIIA, IVA or VA. To expand the 2D material family, the orbital hybridization becomes a key factor to determine stability. Here we predict that sp2d3hybridization of the outmost electrons in iodine and astatine can build up 2D triangle lattices, delta-iodiene and delta-astatiene, using first-principles calculations. Each atom is connected by σ bonds with nearest 6 atoms and the π bonds are thus introduced. The band gaps can approach zero because of interaction of unpaired single electron between each atom, if the identical bond length is reduced. By inducing compression strain, the Dirac points or topological nontrivial points can be created in the delta-iodiene and delta-astatiene. Our discovery paves a new way to construction of 2D materials.
Collapse
Affiliation(s)
- Xinyue Zhang
- School of Chemical Engineering, Sichuan University Chengdu, 610065, People's Republic of China
| | - Yu Liu
- Microsoft Quantum Materials Lab Copenhagen, 2800 Lyngby, Denmark
- Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Qingsong Huang
- School of Chemical Engineering, Sichuan University Chengdu, 610065, People's Republic of China
| |
Collapse
|
46
|
Thi Thu Hanh T, Minh Phi N, Van Hoa N. Hydrogen adsorption on two-dimensional germanene and its structural defects: an ab initio investigation. Phys Chem Chem Phys 2020; 22:7210-7217. [PMID: 32207502 DOI: 10.1039/d0cp00016g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, the adsorption of hydrogen on pristine germanene was studied using ab initio calculations. By performing a converged density functional theory calculation, we have found the nearly degenerate nature of hydrogen at the top sites HT1 and HT2, among which HT1 is the most stable site. The adsorption of a hydrogen atom on germanene led to local structural changes in germanene. To the best of our knowledge, this is the first study on the investigation of the localized surface curvature and zero-point energy of hydrogen for 2D germanene. Moreover, we demonstrated the properties of germanene defects via the four obtained defects: the Stone-Wales (55-77), divacancy (77-555-6), divacancy (555-7), and pentagon-heptagon linear (5-7) defect. The lowest formation energy of the pentagon-heptagon linear defect is shown for the first time in this study.
Collapse
Affiliation(s)
- Tran Thi Thu Hanh
- Comp. Phys. Lab, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet St., Dist. 10, Ho Chi Minh City, Vietnam.
| | - Nguyen Minh Phi
- Comp. Phys. Lab, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet St., Dist. 10, Ho Chi Minh City, Vietnam.
| | - Nguyen Van Hoa
- Comp. Phys. Lab, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet St., Dist. 10, Ho Chi Minh City, Vietnam.
| |
Collapse
|
47
|
Cheung KP, Wang C, Campbell JP. Nanoscale MOSFET as a Potential Room-Temperature Quantum Current Source. MICROMACHINES 2020; 11:mi11040364. [PMID: 32244342 PMCID: PMC7230813 DOI: 10.3390/mi11040364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/16/2020] [Accepted: 03/23/2020] [Indexed: 11/26/2022]
Abstract
Nanoscale metal-oxide-semiconductor field-effect-transistors (MOSFETs) with only one defect at the interface can potentially become a single electron turnstile linking frequency and electronic charge to realize the elusive quantized current source. Charge pumping is often described as a process that ‘pumps’ one charge per driving period per defect. The precision needed to utilize this charge pumping mechanism as a quantized current source requires a rigorous demonstration of the basic charge pumping mechanism. Here we present experimental results on a single-defect MOSFET that shows that the one charge pumped per cycle mechanism is valid. This validity is also discussed through a variety of physical arguments that enrich the current understanding of charge pumping. The known sources of errors as well as potential sources of error are also discussed. The precision of such a process is sufficient to encourage further exploration of charge pumping based on quantum current sources.
Collapse
Affiliation(s)
- Kin P. Cheung
- Nanoscale Device Characterization Division, National Institute of Standards & Technology, Gaithersburg, MD 20899, USA;
- Correspondence:
| | - Chen Wang
- Currently State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, China;
| | - Jason P. Campbell
- Nanoscale Device Characterization Division, National Institute of Standards & Technology, Gaithersburg, MD 20899, USA;
| |
Collapse
|
48
|
Grover P, Ferch LS, Schreckenbach G. Adsorption of Actinide (U–Pu) Complexes on the Silicene and Germanene Surface: A Theoretical Study. J Phys Chem A 2020; 124:1522-1534. [DOI: 10.1021/acs.jpca.9b10888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Payal Grover
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Laura S. Ferch
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| |
Collapse
|
49
|
Si N, Yao Q, Jiang Y, Li H, Zhou D, Ji Q, Huang H, Li H, Niu T. Recent Advances in Tin: From Two-Dimensional Quantum Spin Hall Insulator to Bulk Dirac Semimetal. J Phys Chem Lett 2020; 11:1317-1329. [PMID: 31945298 DOI: 10.1021/acs.jpclett.9b03538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An atomic layer of tin in a buckled honeycomb lattice, termed stanene, is a promising large-gap two-dimensional topological insulator for realizing room-temperature quantum-spin-Hall effect and therefore has drawn tremendous interest in recent years. Because the electronic structures of Sn allotropes are sensitive to lattice strain, e.g. the semimetallic α-phase of Sn can transform into a three-dimensional topological Dirac semimetal under compressive strain, recent experimental advances have demonstrated that stanene layers on different substrates can also host various electronic properties relating to in-plane strain, interfacial charge transfer, layer thickness, and so on. Thus, comprehensive understanding of the growth mechanism at the atomic scale is highly desirable for precise control of such tunable properties. Herein, the fundamental properties of stanene and α-Sn films, recent achievements in epitaxial growth, challenges in high-quality synthesis, and possible applications of stanene are discussed.
Collapse
Affiliation(s)
- Nan Si
- Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering , Nanjing University of Science and Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Qi Yao
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 200031 , China
- ShanghaiTech Laboratory for Topological Physics , ShanghaiTech University , Shanghai 200031 , China
| | - Yixuan Jiang
- Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering , Nanjing University of Science and Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Heping Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Dechun Zhou
- Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering , Nanjing University of Science and Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Qingmin Ji
- Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering , Nanjing University of Science and Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Han Huang
- Hunan Key Laboratory of Super-Microstructure and Ultrafast Process, College of Physics and Electronics , Central South University , Changsha 410083 , China
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Tianchao Niu
- Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering , Nanjing University of Science and Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| |
Collapse
|
50
|
Loaiza LC, Monconduit L, Seznec V. Si and Ge-Based Anode Materials for Li-, Na-, and K-Ion Batteries: A Perspective from Structure to Electrochemical Mechanism. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905260. [PMID: 31922657 DOI: 10.1002/smll.201905260] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/14/2019] [Indexed: 06/10/2023]
Abstract
Silicon and germanium are among the most promising candidates as anodes for Li-ion batteries, meanwhile their potential application in sodium- and potassium-ion batteries is emerging. The access of their entire potential requires a comprehensive understanding of their electrochemical mechanism. This Review highlights the processes taking place during the alloying reaction of Si and Ge with the alkali ions. Several associated challenges, including the volumetric expansion, particle pulverization, and uncontrolled formation of solid electrolyte interphase layer must be surmounted and different strategies, such as nanostructures and electrode formulation, have been implemented. Additionally, a new approach based on the use of layered Si and Ge-based Zintl phases is presented. The versatility of this new family permits the tuning of their physical and chemical properties for specific applications. For batteries in particular, the layered structure buffers the volume expansion and exhibits an enhanced electronic conductivity, allowing high power applications.
Collapse
Affiliation(s)
- Laura C Loaiza
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, 15 Rue Baudelocque, 80039, Amiens Cedex, France
| | - Laure Monconduit
- Institut Charles Gerhardt Montpellier, Université de Montpellier, CNRS, 34095, Montpellier, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), 15 Rue Baulocque, 80039, Amiens Cedex, France
- ALISTORE European Research Institute, Université de Picardie Jules Verne, 15 Rue Baulocque, 80039, Amiens Cedex, France
| | - Vincent Seznec
- Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, 15 Rue Baudelocque, 80039, Amiens Cedex, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), 15 Rue Baulocque, 80039, Amiens Cedex, France
- ALISTORE European Research Institute, Université de Picardie Jules Verne, 15 Rue Baulocque, 80039, Amiens Cedex, France
| |
Collapse
|