Materials Science and Engineering B-advanced Functional Solid-state Materials最新文献

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Improving catalytic performance of BaTiO3 perovskite nanoparticles through Sm and Sm@Ag deposition for environmental sustainability 通过 Sm 和 Sm@Ag 沉积提高 BaTiO3 珍珠岩纳米粒子的催化性能,实现环境可持续性
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-06 DOI: 10.1016/j.mseb.2024.117790
N.S. Mohan , M. Pandian , V. Vijayalakshmi , A. Arulraj
{"title":"Improving catalytic performance of BaTiO3 perovskite nanoparticles through Sm and Sm@Ag deposition for environmental sustainability","authors":"N.S. Mohan ,&nbsp;M. Pandian ,&nbsp;V. Vijayalakshmi ,&nbsp;A. Arulraj","doi":"10.1016/j.mseb.2024.117790","DOIUrl":"10.1016/j.mseb.2024.117790","url":null,"abstract":"<div><div>This paper investigates the efficiency and processes behind the photocatalytic degradation of Methylene Blue (MB) using BaTiO<sub>3</sub>, Sm@BaTiO<sub>3</sub>, and Sm@Ag@BaTiO<sub>3</sub> nanoparticles (NPs). PXRD analysis revealed that cubic phase BaTiO<sub>3</sub> NPs have mean crystallite sizes of 36, 48, and 57 nm, respectively. The band gap energies of BaTiO<sub>3</sub>, Sm@BaTiO<sub>3</sub>, and Sm@Ag@BaTiO<sub>3</sub> NPs, computed from UV–Vis spectra, are 3.73 eV, 3.69 eV, and 3.65 eV. FESEM analysis determined the spherical shape morphology of the produced NPs. Among the samples Sm@Ag@BaTiO<sub>3</sub> NPs demonstrated superior photocatalytic activity in degrading MB dye under UV light irradiation, achieving a dye degradation efficiency of approximately 83.20 %. The prepared nanoparticles showed significant consistency in reducing MB dye after four consecutive cycles, indicating their potential for repeated use. Our study demonstrates that green-synthesized BaTiO<sub>3</sub>, Sm@BaTiO<sub>3</sub>, and Sm@Ag@BaTiO<sub>3</sub> NPs exhibit superior photocatalytic activity under visible light irradiation, effectively degrading MB dye. The <em>trans</em>-esterification process was influenced by several reaction parameters, including the molar ratio of alcohol to oil (4:1), the catalyst quantity (100 mg), the reaction duration (60 min), and the temperature (80 °C). Under these optimized conditions, the biodiesel yield reached a maximum of 91 % at 80 °C for 60 min in the presence of 0.5 M Sm@Ag@BaTiO<sub>3</sub> NPs. Moreover, the catalyst demonstrated consistent performance across at least five runs and maintained effectiveness even after eight runs. These findings suggest that the catalyst has significant potential for producing biodiesel efficiently and cost-effectively under suitable reaction conditions.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117790"},"PeriodicalIF":3.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile synthesis of Cu2O nano-microspheres anode for lithium-ion batteries 轻松合成用于锂离子电池的 Cu2O 纳米微球负极
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-05 DOI: 10.1016/j.mseb.2024.117799
Xinghua Liang , Shuhong Yun , Shangfeng Tang , Yifei Zhao , Lihong Chen , Siying Li , Qicheng Hu
{"title":"Facile synthesis of Cu2O nano-microspheres anode for lithium-ion batteries","authors":"Xinghua Liang ,&nbsp;Shuhong Yun ,&nbsp;Shangfeng Tang ,&nbsp;Yifei Zhao ,&nbsp;Lihong Chen ,&nbsp;Siying Li ,&nbsp;Qicheng Hu","doi":"10.1016/j.mseb.2024.117799","DOIUrl":"10.1016/j.mseb.2024.117799","url":null,"abstract":"<div><div>Transition metal oxide anode materials exhibit high theoretical specific capacities and can meet the energy density requirements through reasonable design. In this work, a facile wet-chemical method to fabricate Cu<sub>2</sub>O nano-microspheres anode for lithium-ion batteries with controllable size varied from 0.4 ∼ 1.2 μm is introduced, which basically using copper acetate as copper precursor and ascorbic acid as reducing agent. The solvent composition (DI water only or DI water:Ethanol = 1:1), solution alkalinity (amount of NaOH input), and synthesis temperature are investigated as factors affecting the size and morphology of Cu<sub>2</sub>O nano-microspheres. The samples are characterized by X-ray diffraction, transmission electron microscope and scanning electron microscope. Nanoparticle cluster structure is observed in the reaction product with the bi-solvent system. With the optimized synthesis condition, the prepared Cu<sub>2</sub>O anode (size of ∼ 455 ± 41 nm) delivers an initial discharge capacity of 539 mAh/g at a current density of 0.5C, 100 cycles of cyclic discharge at 0.5C with a capacity retention rate of 84.73 %. At the current density of 2C, the specific capacity is 347 mAh/g. Even at a large current density of 5C, the specific capacity is still as high as 219 mAh/g, indicating good rate capability.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117799"},"PeriodicalIF":3.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of regular UiO-66(Ce) nanocubes and their electrochemical catalysis performance 规则 UiO-66(Ce)纳米立方体的制备及其电化学催化性能
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-05 DOI: 10.1016/j.mseb.2024.117800
Jingwei Yuan , Wanyin Xu , Yirong Wang , Shao Wang , Ronghui Hao , Yubing Dong , Qianqian Li , Yufeng Zhao
{"title":"Fabrication of regular UiO-66(Ce) nanocubes and their electrochemical catalysis performance","authors":"Jingwei Yuan ,&nbsp;Wanyin Xu ,&nbsp;Yirong Wang ,&nbsp;Shao Wang ,&nbsp;Ronghui Hao ,&nbsp;Yubing Dong ,&nbsp;Qianqian Li ,&nbsp;Yufeng Zhao","doi":"10.1016/j.mseb.2024.117800","DOIUrl":"10.1016/j.mseb.2024.117800","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs), characterized with highly ordered porous structures and relatively high surface area, exhibit significant application potential in the field of electrochemistry catalysis. In this study, we successfully prepared UiO-66(Ce) particles with uniform nanocube morphology and the size distribution ranging from 90 to 156 nm. Both morphology and size can be precisely tuned by directly adjusting detailed synthesis parameters, including solvent concentration and reaction time. Moreover, the crystal growth mechanism of UiO-66(Ce) was comprehensively investigated through the microstructure characterization. Such uniform particles demonstrated a desirable electrocatalytic performance with hydrogen evolution reaction (HER) overpotential of 118.6 mV (at 10 mA cm<sup>−2</sup>) in alkaline electrolyte (1 M KOH). This study not only introduces a novel approach for the morphological manipulation of UiO-66(Ce), but also presents new material candidates for the advancement of high-performance electrochemical energy conversion systems.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117800"},"PeriodicalIF":3.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Half-metallicity and thermoelectric performance: A multifaceted investigation of Zr-based half-Heusler alloys 半金属性与热电性能:对锆基半赫斯勒合金的多方面研究
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-05 DOI: 10.1016/j.mseb.2024.117783
Bharti Gurunani, Dinesh C. Gupta
{"title":"Half-metallicity and thermoelectric performance: A multifaceted investigation of Zr-based half-Heusler alloys","authors":"Bharti Gurunani,&nbsp;Dinesh C. Gupta","doi":"10.1016/j.mseb.2024.117783","DOIUrl":"10.1016/j.mseb.2024.117783","url":null,"abstract":"<div><div>This work employs the linearized augmented plane-wave (LAPW) method within the framework of density functional theory (DFT) to explore the structural, elastic, electronic, magnetic, and thermoelectric properties of the Zr-based half-Heusler alloys CoZrSn and CoZrPb. The exchange–correlation functional is treated using both the Perdew-Burke-Ernzerhof (GGA-PBE) generalized gradient approximation and the Tran-Blaha-modified Beck-Johnson (TB-mBJ) potential, as implemented in the WIEN2k software package. Our findings indicate that the investigated material exhibits mechanical stability, suggesting its potential for experimental synthesis. Furthermore, both CoZrSn and CoZrPb display half-metallic behavior consistent with Slater-Pauling’s rule, characterized by an integer magnetic moment of 1 μB. Electronic band structures and density of states calculations, employing the TB-mBJ approximation, confirm this half-metallic character. Notably, indirect band gaps of 0.52 eV and 0.69 eV are observed for CoZrSn and CoZrPb, respectively. To investigate thermoelectric properties, including the Seebeck coefficient (S), electrical conductivity (σ), thermal conductivity (κ), and figure of merit (ZT), the Boltzmann transport equations within the DFT framework were utilized. The calculated values for the figure of merit and Seebeck coefficient suggest that the CoZrX alloys hold promise for thermoelectric applications. Significantly, there is a lack of prior experimental or theoretical investigations on the CoZrX half-Heusler alloys. Consequently, our theoretical predictions regarding the structural, elastic, electronic, magnetic, and thermoelectric properties provide valuable insights that can be further validated through future experimental studies.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117783"},"PeriodicalIF":3.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The phase composition, relaxor behavior and strain performance of the Pb(Mg1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3 single crystal 铅(Mg1/3Nb2/3)O3-铅(Zn1/3Nb2/3)O3 单晶的相组成、弛豫行为和应变性能
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-04 DOI: 10.1016/j.mseb.2024.117796
Aiguo He , Shuwei Tang , Fayun Tang , Wei Long , Zengzhe Xi , Weiguo Liu
{"title":"The phase composition, relaxor behavior and strain performance of the Pb(Mg1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3 single crystal","authors":"Aiguo He ,&nbsp;Shuwei Tang ,&nbsp;Fayun Tang ,&nbsp;Wei Long ,&nbsp;Zengzhe Xi ,&nbsp;Weiguo Liu","doi":"10.1016/j.mseb.2024.117796","DOIUrl":"10.1016/j.mseb.2024.117796","url":null,"abstract":"<div><div>For exploiting relaxor materials with high strain and low hysteresis, Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>– Pb(Zn<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> (PMN-PZN) crystal was designed and grown. The grown crystal is light yellow with a maximum size of 13 × 10 × 8 mm<sup>3</sup>. Rietveld refinement and domain configuration at room temperature confirm the coexistence of cubic and rhombohedral phases, and the cubic phase is dominant. The Curie temperature of the grown crystal is slightly lower than room temperature and shows a strong frequency dependence. Strong dielectric relaxor performance is demonstrated by means of different ways. At a temperature of 26 ℃ and an electric field of 35 kV/cm, the saturation polarization reaches 22.62 μC/cm<sup>2</sup>, the residual polarization is almost zero, the strain is about 0.1 %, and the hysteresis degree is 4 ∼ 5 %. Moderate strain and low hysteresis make PMN-PZN crystal display potential application in high-precision actuators. Moreover, in-situ domain evolution under an electric field was observed to understand the polarization and strain behaviors.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117796"},"PeriodicalIF":3.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the thermoelectric performance of NiFeMnAl and ZnFeVAl as novel quaternary Heusler compounds 探索新型四元海斯勒化合物 NiFeMnAl 和 ZnFeVAl 的热电性能
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-04 DOI: 10.1016/j.mseb.2024.117789
Abhigyan Ojha, Rama Krushna Sabat, Sivaiah Bathula
{"title":"Exploring the thermoelectric performance of NiFeMnAl and ZnFeVAl as novel quaternary Heusler compounds","authors":"Abhigyan Ojha,&nbsp;Rama Krushna Sabat,&nbsp;Sivaiah Bathula","doi":"10.1016/j.mseb.2024.117789","DOIUrl":"10.1016/j.mseb.2024.117789","url":null,"abstract":"<div><div>Quaternary Heusler (QH) compounds, characterized by the chemical formula XX’YZ, are highly regarded in the energy materials sector due to their versatile electronic structures. The current study focuses on synthesizing novel QH compounds, NiFeMnAl and ZnFeVAl, through arc-melting followed by hot-pressing at 1073 K. Maximum Seebeck coefficients were exhibited ∼ −20.48 μV/K and ∼ −17.25 μV/K at 773 K for ZnFeVAl and NiFeMnAl, respectively. The evaluated power factor was ∼ 0.058 mWm<sup>−1</sup>K<sup>−2</sup> for NiFeMnAl and ∼ 0.020 mWm<sup>−1</sup>K<sup>−2</sup> for ZnFeVAl at 773 K. Furthermore, the lattice thermal conductivity (κ<sub>l</sub>) was exhibited ∼ 8.73 Wm<sup>−1</sup>K<sup>−1</sup> for NiFeMnAl and ∼ 6.92 Wm<sup>−1</sup>K<sup>−1</sup> for ZnFeVAl at 773 K, with ZnFeVAl exhibiting a ∼ 20.73 % lower κ<sub>l</sub> attributed to chemical bonding distortion arising from differences in constituent element electronegativity. Hence, these novel compounds offer a promising avenue for further research in TE materials, aiming to realize higher-performance materials for practical TE device applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117789"},"PeriodicalIF":3.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data-driven designing of dyes: Chemical space generation and dipole moment prediction 数据驱动的染料设计:化学空间生成和偶极矩预测
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-04 DOI: 10.1016/j.mseb.2024.117792
Mudassir Hussain Tahir , Tagir Kadyrov , Ihab Mohamed Moussa
{"title":"Data-driven designing of dyes: Chemical space generation and dipole moment prediction","authors":"Mudassir Hussain Tahir ,&nbsp;Tagir Kadyrov ,&nbsp;Ihab Mohamed Moussa","doi":"10.1016/j.mseb.2024.117792","DOIUrl":"10.1016/j.mseb.2024.117792","url":null,"abstract":"<div><div>The current study presents machine learning-assisted designing of dyes for photovoltaics applications. Multiple machine learning models are trained to predict the dipole moment. Random forest model has appeared as best model with lower root mean square error value (1.01 Debye) and higher r-squared value (0.87). New dyes are designed using automatic method and their dipole moment is predicted using best machine learning model. The generated chemical space of dyes is visualized and analyzed using cluster plot, silhouette plot and t-distributed Stochastic Neighbor Embedding (t-SNE plot). 30 dyes with highest dipole moment values (6.31–7.12 Debye) are chosen. Chemical similarity analyses are performed on the selected dyes using cluster analysis and heatmap. Furthermore, an investigation into the synthetic accessibility score of the newly designed dyes is conducted. This method facilitates the swift selection of dyes for potential use in photovoltaic devices.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117792"},"PeriodicalIF":3.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile electrooxidation of urea on nickel/metal oxide nanocomposites in alkaline media 碱性介质中镍/金属氧化物纳米复合材料上尿素的简便电氧化反应
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-02 DOI: 10.1016/j.mseb.2024.117785
Machireddy Narendra Reddy , Yellatur Chandra Sekhar , Loka Subramanyam Sarma
{"title":"Facile electrooxidation of urea on nickel/metal oxide nanocomposites in alkaline media","authors":"Machireddy Narendra Reddy ,&nbsp;Yellatur Chandra Sekhar ,&nbsp;Loka Subramanyam Sarma","doi":"10.1016/j.mseb.2024.117785","DOIUrl":"10.1016/j.mseb.2024.117785","url":null,"abstract":"<div><div>Development of efficient non-precious metal catalysts for electrocatalytic urea oxidation reaction (UOR) is highly sought to realize urea electrolysis as a viable electrochemical technology for the hydrogen production. Herein, a facile hydrothermal method is demonstrated to fabricate nickel/metal oxide nanocomposites (Ni-MnO<sub>2</sub>, Ni-TiO<sub>2</sub> and Ni-MnO<sub>2</sub>/TiO<sub>2</sub>). The morphology and structural details of nickel/metal oxide nanocomposites are assessed using transmission electron microscopy (TEM) including high-resolution TEM, scanning electron microscopy (SEM)-energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Electrochemical efficacies of nickel/metal oxide nanocomposites are evaluated in 0.35 M urea solution under alkaline conditions (1 M KOH) using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). Among the studied catalysts, Ni-MnO<sub>2</sub>/TiO<sub>2</sub> exhibits reasonable electrocatalytic activity towards UOR (1.29 V vs Ag/AgCl satd. KCl is required to achieve 10 mAcm<sup>−2</sup> current density). Improved interfacing of nickel with tubular-like MnO<sub>2</sub> and presence of TiO<sub>2</sub> with MnO<sub>2</sub> all together contributed for the observed higher UOR catalytic activity. This work demonstrates the efficacies of interfacial engineering in achieving high performing electrocatalysts for UOR.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117785"},"PeriodicalIF":3.9,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A high-capacity double-layered (NH4)0.5V2O5 in micro-rods structure for sodium storage 微棒结构中的高容量双层 (NH4)0.5V2O5 储钠器
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-02 DOI: 10.1016/j.mseb.2024.117793
Thi Hong Loan Dang , Thi Thu Trang Nguyen , Hai Nam Pham , Hoang Anh Nguyen , Thi Thu Hong Nguyen , Minh Dai To , Thu Thao Nguyen , Thi Nam Pham , Dai Lam Tran , Wen Jen Lee , Minh Thuan Pham , Anh Tuan Dao , Quang Vinh Lam , Thai Hoang Nguyen , Viet Hai Le , Le Thanh Nguyen Huynh
{"title":"A high-capacity double-layered (NH4)0.5V2O5 in micro-rods structure for sodium storage","authors":"Thi Hong Loan Dang ,&nbsp;Thi Thu Trang Nguyen ,&nbsp;Hai Nam Pham ,&nbsp;Hoang Anh Nguyen ,&nbsp;Thi Thu Hong Nguyen ,&nbsp;Minh Dai To ,&nbsp;Thu Thao Nguyen ,&nbsp;Thi Nam Pham ,&nbsp;Dai Lam Tran ,&nbsp;Wen Jen Lee ,&nbsp;Minh Thuan Pham ,&nbsp;Anh Tuan Dao ,&nbsp;Quang Vinh Lam ,&nbsp;Thai Hoang Nguyen ,&nbsp;Viet Hai Le ,&nbsp;Le Thanh Nguyen Huynh","doi":"10.1016/j.mseb.2024.117793","DOIUrl":"10.1016/j.mseb.2024.117793","url":null,"abstract":"<div><div>An ammonium vanadium bronze (NH<sub>4</sub>)<sub>0.5</sub>V<sub>2</sub>O<sub>5</sub> (NVO) was synthesized via a hydrothermal route and investigated the Na-insertion/extraction process as a cathode for Na-ion batteries. The structural analysis confirms that the double-layered NVO in the micro-rods structure is formed by the double-sheet [VO<sub>6</sub>] with a large distance interlayer of 9.717 Å to be suitable for reversible Na-storage. The charge–discharge cycling performance delivers ∼160 mAh/g for long-term 200 cycles with structural stability. The ex-situ EXD at various Na-content states demonstrates the shrinkage/expansion of the interlayers during Na-migration, and the NH<sub>4</sub><sup>+</sup>-ions play an essential role as the “pillar” of double-layered V<sub>2</sub>O<sub>5</sub> to assure cycling stability. This work contributes to a high-capacity member of the V<sub>2</sub>O<sub>5</sub> polymorph family in the context of Na-ion batteries.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117793"},"PeriodicalIF":3.9,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlled growth of two-dimensional MoS2/WSe2 heterostructure solar cell by chemical vapor deposition 利用化学气相沉积技术控制二维 MoS2/WSe2 异质结构太阳能电池的生长
IF 3.9 3区 材料科学
Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-02 DOI: 10.1016/j.mseb.2024.117787
C. Sreelakshmi , Pamula Siva , Rajesh Yalambaku , M. Ghanashyam Krishna , Kuraganti Vasu
{"title":"Controlled growth of two-dimensional MoS2/WSe2 heterostructure solar cell by chemical vapor deposition","authors":"C. Sreelakshmi ,&nbsp;Pamula Siva ,&nbsp;Rajesh Yalambaku ,&nbsp;M. Ghanashyam Krishna ,&nbsp;Kuraganti Vasu","doi":"10.1016/j.mseb.2024.117787","DOIUrl":"10.1016/j.mseb.2024.117787","url":null,"abstract":"<div><div>The development of high-quality type II semiconductor heterostructures is crucial for solar energy conversion applications. Here, we report the sequential growth of MoS<sub>2</sub>/WSe<sub>2</sub> two-dimensional semiconductor type II heterostructure using a one-step chemical vapor deposition. The morphological, Raman, and chemical analysis revealed that the WSe<sub>2</sub> layer is deposited on the rhombus-shaped MoS<sub>2</sub>, forming a vertical MoS<sub>2</sub>/WSe<sub>2</sub> heterostructure. The solar cell fabricated using the grown heterostructure exhibits a photovoltaic response with a conversion efficiency of 2.5 % and an open circuit voltage of 0.22 V, respectively. The numerical simulation study unravels the mechanism of charge separation and transport in the MoS<sub>2</sub>/WSe<sub>2</sub> heterostructure solar cell.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"311 ","pages":"Article 117787"},"PeriodicalIF":3.9,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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