{"title":"High performance of a vacancy-defected B3C2N3 nanosheets for lithium storage in Li-ion batteries: A first-principles study","authors":"Rezvan Rahimi , Mohammad Solimannejad","doi":"10.1016/j.mssp.2025.109411","DOIUrl":null,"url":null,"abstract":"<div><div>This current study, utilizing DFT calculations, investigates the viability of employing a vacancy-defected B<sub>3</sub>C<sub>2</sub>N<sub>3</sub> monolayer as an anode material in LIBs. The study delves into the optimized configurations for lithium interaction with vacancy-defected B<sub>3</sub>C<sub>2</sub>N<sub>3</sub> monolayers (V<sub>B</sub>, V<sub>C</sub>, and V<sub>N</sub>). These configurations exhibit the stability of lithium atoms at the center of the vacancy in the Li-V<sub>B</sub>, Li-V<sub>C</sub>, and Li-V<sub>N</sub> structures, with corresponding adsorption energies of −4.45, −5.76, and −3.56 eV, respectively. The V<sub>C</sub> structure demonstrates slightly higher stability in comparison to the V<sub>B</sub> and V<sub>N</sub> structures. The vacancy-defected B<sub>3</sub>C<sub>2</sub>N<sub>3</sub> monolayer (V<sub>C</sub>) has specifically employed to enhance lithium adsorption and storage capabilities, with the potential to adsorb up to 19 Li atoms. Sequential loading of Li atoms onto the V<sub>C</sub> configuration reveals that the V<sub>C</sub> structure attains a maximum specific capacity of 1334 mAh/g. An examination of the density of states and band structure indicates that the V<sub>C</sub> surface consistently exhibits strong metallic characteristics during the lithiation process. Ab initio molecular dynamics (AIMD) calculations have carried out to assess the thermal stability of the V<sub>C</sub>-B<sub>3</sub>C<sub>2</sub>N<sub>3</sub> monolayer and the 19Li-V<sub>C</sub> complex in the NVT ensemble. The outcomes of this study suggest that the vacancy-defected B<sub>3</sub>C<sub>2</sub>N<sub>3</sub> monolayer shows promise in Li atom storage for potential applications in LIBs.</div></div>","PeriodicalId":18240,"journal":{"name":"Materials Science in Semiconductor Processing","volume":"192 ","pages":"Article 109411"},"PeriodicalIF":4.2000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science in Semiconductor Processing","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1369800125001489","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This current study, utilizing DFT calculations, investigates the viability of employing a vacancy-defected B3C2N3 monolayer as an anode material in LIBs. The study delves into the optimized configurations for lithium interaction with vacancy-defected B3C2N3 monolayers (VB, VC, and VN). These configurations exhibit the stability of lithium atoms at the center of the vacancy in the Li-VB, Li-VC, and Li-VN structures, with corresponding adsorption energies of −4.45, −5.76, and −3.56 eV, respectively. The VC structure demonstrates slightly higher stability in comparison to the VB and VN structures. The vacancy-defected B3C2N3 monolayer (VC) has specifically employed to enhance lithium adsorption and storage capabilities, with the potential to adsorb up to 19 Li atoms. Sequential loading of Li atoms onto the VC configuration reveals that the VC structure attains a maximum specific capacity of 1334 mAh/g. An examination of the density of states and band structure indicates that the VC surface consistently exhibits strong metallic characteristics during the lithiation process. Ab initio molecular dynamics (AIMD) calculations have carried out to assess the thermal stability of the VC-B3C2N3 monolayer and the 19Li-VC complex in the NVT ensemble. The outcomes of this study suggest that the vacancy-defected B3C2N3 monolayer shows promise in Li atom storage for potential applications in LIBs.
期刊介绍:
Materials Science in Semiconductor Processing provides a unique forum for the discussion of novel processing, applications and theoretical studies of functional materials and devices for (opto)electronics, sensors, detectors, biotechnology and green energy.
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Coverage will include: advanced lithography for submicron devices; etching and related topics; ion implantation; damage evolution and related issues; plasma and thermal CVD; rapid thermal processing; advanced metallization and interconnect schemes; thin dielectric layers, oxidation; sol-gel processing; chemical bath and (electro)chemical deposition; compound semiconductor processing; new non-oxide materials and their applications; (macro)molecular and hybrid materials; molecular dynamics, ab-initio methods, Monte Carlo, etc.; new materials and processes for discrete and integrated circuits; magnetic materials and spintronics; heterostructures and quantum devices; engineering of the electrical and optical properties of semiconductors; crystal growth mechanisms; reliability, defect density, intrinsic impurities and defects.