Materials Science and Engineering: B最新文献_第2页

Improved magnetic and thermal conductivity performance of FeSi soft magnetic composites by adding h-BN 添加 h-BN 提高铁硅软磁复合材料的磁性和导热性能

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-27 DOI: 10.1016/j.mseb.2024.117869

Ziru Zheng, Xiaoyu Wang, Shuoguo Li, Kun Peng

{"title":"Improved magnetic and thermal conductivity performance of FeSi soft magnetic composites by adding h-BN","authors":"Ziru Zheng, Xiaoyu Wang, Shuoguo Li, Kun Peng","doi":"10.1016/j.mseb.2024.117869","DOIUrl":"10.1016/j.mseb.2024.117869","url":null,"abstract":"<div><div>Low heat generation and high thermal conductivity are the basic guarantees for stable operation of magnetic devices. In this paper, h-BN nano-sheet were coated on FeSi particles to prepare FeSi/h-BN magnetic cores with a low loss and high thermal conductivity. The surface modified h-BN evenly coated on FeSi particles improved the insulation between magnetic particles. Appropriate amount of h-BN sheet addition effectively reduced the eddy current loss and improved thermal conductivity of FeSi soft magnetic composites (SMCs), which can be attributed to the high resistivity and high planar thermal conductivity of h-BN nano-sheet. The FeSi SMCs with 3 wt% h-BN has the optimum comprehensive properties, effective permeability of 57, saturation magnetization of 172.2 A.m2/kg, low core loss of 601.6 mW/cm3 at 60 mT and 100 kHz, and its thermal conductivity increased by 62 % to 11.03 W m-1K−1, which is useful for the stable operation of devices.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117869"},"PeriodicalIF":3.9,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722264","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

Structural, morphological, and electric study of doped- Na2Zn2TeO6 family in a wide range of temperatures 宽温度范围内掺杂 Na2Zn2TeO6 族的结构、形态和电学研究

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-27 DOI: 10.1016/j.mseb.2024.117865

R. Salgado, S. Terny, M.A. Frechero

{"title":"Structural, morphological, and electric study of doped- Na2Zn2TeO6 family in a wide range of temperatures","authors":"R. Salgado, S. Terny, M.A. Frechero","doi":"10.1016/j.mseb.2024.117865","DOIUrl":"10.1016/j.mseb.2024.117865","url":null,"abstract":"<div><div>Nowadays Sodium solid conductors are intensely studied to develop electrochemical energy storage devices to boost the development of sodium ion batteries. The Na2Zn2TeO6 (NZTO) has been stablished as a 2D Na-ion conductor with excellent performance at low temperature. In this work four doped-NZTO have been synthesized by solid state reaction. The metal cations incorporated were: Ba2+, Nb5+, Mo6+, W6+. Their structures were characterized by XRD as a function of the temperature, and the Rietveld and Le Bail refinement were applied. Also, the thermal stability was studied by DSC technique between −40 °C to 400 °C. SEM, EDS and density measurement complement the information on structural features. The electrical conductivity, studied by impedance spectroscopy and DC polarization, confirmed that it is possible to minimize the inherent electronic conductivity and that the material’s best performance, as a pure sodium conductor, was achieved at low temperature Moreover, this technique confirmed that the presence of a reversible order/disorder transition of sodium ions /vacancies in the structure has an important effect on the total conductivity. Additionally, it was analyzed how to minimize the sodium loss during the sintering process to diminish the secondary phase formation.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117865"},"PeriodicalIF":3.9,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722265","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

Plasma emission spectroscopy for studying Bi2S3 produced by pulsed laser deposition and effects of substrate temperature on structural, morphological, and optical properties of thin films 利用等离子体发射光谱研究脉冲激光沉积生成的 Bi2S3 以及基底温度对薄膜结构、形态和光学特性的影响

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-26 DOI: 10.1016/j.mseb.2024.117867

K. Rodríguez-Rosales , J. Cruz-Gómez , J. Santos Cruz , A. Guillén-Cervantes , F. de Moure-Flores , M. Villagrán-Muniz

{"title":"Plasma emission spectroscopy for studying Bi2S3 produced by pulsed laser deposition and effects of substrate temperature on structural, morphological, and optical properties of thin films","authors":"K. Rodríguez-Rosales , J. Cruz-Gómez , J. Santos Cruz , A. Guillén-Cervantes , F. de Moure-Flores , M. Villagrán-Muniz","doi":"10.1016/j.mseb.2024.117867","DOIUrl":"10.1016/j.mseb.2024.117867","url":null,"abstract":"<div><div>This research underscores the role of plasma analysis in enhancing the reproducibility of Bi2S3 thin films synthesized via pulsed laser deposition (PLD). Through optical emission spectroscopy (OES), we analyzed the dynamics of the Bi2S3 plasma, focusing on the transitions of neutral and singly ionized sulfur and bismuth atoms. Thin films were grown at varying substrate temperatures (WST, 100 °C, 150 °C, 200 °C, and 250 °C), and structural and morphological characterizations confirmed a polycrystalline nature, with particle size increasing at higher deposition temperatures. The films exhibited transmittance values ranging from 8 % to 26 % and a bandgap from 1.61 to 1.75 eV as the substrate temperature increased. Bi2S3 films also demonstrated n-type conductivity at temperatures above room temperature. These findings highlight the influence of substrate temperature on the structural and optoelectronic properties of Bi2S3 films, with optimal characteristics for optoelectronic applications consistently achieved at deposition temperatures between 150 °C and 200 °C.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117867"},"PeriodicalIF":3.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance enhancement of intermediate-temperature SOFCs using Ba0.5Sr0.5Sc0.2-xTaxCo0.8O3-δ-Based composite cathodes 使用基于 Ba0.5Sr0.5Sc0.2-xTaxCo0.8O3-δ 的复合阴极提高中温 SOFC 的性能

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-26 DOI: 10.1016/j.mseb.2024.117853

Yuanyuan Zhao , Huayu Zhang , Zilin Yan , Junwei Wu

{"title":"Performance enhancement of intermediate-temperature SOFCs using Ba0.5Sr0.5Sc0.2-xTaxCo0.8O3-δ-Based composite cathodes","authors":"Yuanyuan Zhao , Huayu Zhang , Zilin Yan , Junwei Wu","doi":"10.1016/j.mseb.2024.117853","DOIUrl":"10.1016/j.mseb.2024.117853","url":null,"abstract":"<div><div>High-performance cathode materials are crucial to ensuring the efficient and stable operation of solid oxide fuel cell (SOFCs), facilitating the advancement of SOFC technology. This study investigates the potential of Ba0.5Sr0.5Sc0.2-xTaxCo0.8O3-δ (BSSTCx, x = 0.025, 0.05, 0.075, 0.1, and 0.125) as cathode materials for intermediate-temperature SOFCs (IT-SOFCs). The BSSTCx and BSSTCx-SDC materials were characterized through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM). Anode-supported NiO-SDC/SDC (∼25 μm) and electrolyte supported NiO-SDC/SDC (∼200 μm) half-cells equipped with BSSTCx cathodes were evaluated at 700 ℃. Single cells equipped with BSSTCx-SDC cathode layers exhibited lower polarization resistance (0.029 Ω·cm2) and higher peak power density (1.225 W/cm2), with stable operation for longer than 90 h at 700 ℃ and a current density of 0.817 A/cm2, compared to those with BSSTCx cathodes alone. Therefore, BSSTCx and BSSTCx-SDC are promising composite cathode materials for intermediate-temperature SOFCs and high-performance cathode materials in SOFCs.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117853"},"PeriodicalIF":3.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700068","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

2D materials integrated with polymers for sustainable energy harvesting through triboelectric nanogenerators 二维材料与聚合物集成，通过三电纳米发电机实现可持续能源采集

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-26 DOI: 10.1016/j.mseb.2024.117859

Soumya Gangwar , Prabhakar Yadav , Alka Rani , Arpit Verma , S.K. Jha , B.C. Yadav

{"title":"2D materials integrated with polymers for sustainable energy harvesting through triboelectric nanogenerators","authors":"Soumya Gangwar , Prabhakar Yadav , Alka Rani , Arpit Verma , S.K. Jha , B.C. Yadav","doi":"10.1016/j.mseb.2024.117859","DOIUrl":"10.1016/j.mseb.2024.117859","url":null,"abstract":"<div><div>In recent years, there has been a surge in the usage of fossil fuels to generate energy from it, like oil, petroleum, coal and natural gas across industrial, vehicles and daily life sectors. Triboelectric nanogenerators (TENGs), among others, have attracted a lot of interest due to their stability and portability. They have very high energy conversion efficiency. The fusion of triboelectric nanogenerators (TENGs) with 2D nanomaterials has given rise to TENGs based on 2D nanomaterials (2D-TENGs). The exceptional physical, optical, chemical, and electronic properties inherent in 2D nanomaterials confer improved output performance upon 2D-TENGs. This review comprehensively shows the current state of work in 2D-TENGs, covering their basic classifications, output performances (voltage, current and power), mechanisms including their enhancements, exceptional advantages, and applications regarding harvesting energy through human motion, wind, rainwater, ocean, vibrations and sonic. It also addresses several challenges that may hinder the widespread application of 2D-TENGs.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117859"},"PeriodicalIF":3.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700069","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

Bifunctional heterostructure ZnWO4@ZnO nanocomposite for high-performance electrocatalysis and supercapacitor applications 用于高性能电催化和超级电容器应用的双功能异质结构 ZnWO4@ZnO 纳米复合材料

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-26 DOI: 10.1016/j.mseb.2024.117848

V. Balasubramanian , B. Shunmugapriya , R. Suman , T. Daniel , Ashraf M.M. Abdelbacki , Shaban R.M. Syed , Ranjith Balu

{"title":"Bifunctional heterostructure ZnWO4@ZnO nanocomposite for high-performance electrocatalysis and supercapacitor applications","authors":"V. Balasubramanian , B. Shunmugapriya , R. Suman , T. Daniel , Ashraf M.M. Abdelbacki , Shaban R.M. Syed , Ranjith Balu","doi":"10.1016/j.mseb.2024.117848","DOIUrl":"10.1016/j.mseb.2024.117848","url":null,"abstract":"<div><div>Earth-abundant transition metal oxides (TMOs) represent a versatile class of electrode materials that excel in energy and environmental applications. Strategically incorporating additional metal oxides to form heterostructures significantly enhances electrical conductivity and cyclic stability, paving the way for better performance in energy storage and conversion technologies. In this study, we developed a ZnWO4@ZnO nanocomposite heterostructure using a straightforward solid-state synthesis method, positioning it as a bifunctional electroactive material for supercapacitor and catalytic applications. Importantly, the heterostructure’s increased surface area allows for more active sites for electrochemical reactions, which can boost current generation. The synergistic interaction between ZnO and ZnWO4 significantly enhances the electrochemical properties of the heterostructure, resulting in an impressive specific capacitance of 363 Fg−1 and exceptional cyclic stability over 10,000 charge–discharge cycles. These results underscore the potential of this material in energy storage and conversion technologies, making it a compelling candidate for high-performance supercapacitor and catalytic applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117848"},"PeriodicalIF":3.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700070","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

Effects of structural design on the performance of low-temperature co-fired multilayer piezoelectric ceramic actuators 结构设计对低温共烧多层压电陶瓷致动器性能的影响

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-25 DOI: 10.1016/j.mseb.2024.117864

Fan Yang , Shuai Fu , Qiaochao Xue , Linjin Huang , Fangfang Wang , Kang Yan

{"title":"Effects of structural design on the performance of low-temperature co-fired multilayer piezoelectric ceramic actuators","authors":"Fan Yang , Shuai Fu , Qiaochao Xue , Linjin Huang , Fangfang Wang , Kang Yan","doi":"10.1016/j.mseb.2024.117864","DOIUrl":"10.1016/j.mseb.2024.117864","url":null,"abstract":"<div><div>The multilayer piezoelectric ceramic actuator (MLCA) represents a crucial driving component for sophisticated equipment in intelligent control systems. Nevertheless, the electromechanical properties of the MLCA are challenging to comprehend due to its intricate structure. Herein, we carried a study to investigate the structure design and preparation of MLCA utilizing finite element simulation calculations and the low-temperature co-fired ceramic (LTCC) technique. The results of simulation demonstrate that the multilayer piezoelectric ceramic exhibits a nonlinear relationship between output performance and the structural dimensions of the devices. A low-cost MLCA with a large piezoelectric coefficient d33 of 8172 pC/N was prepared by the LTCC technique using silver as the inner electrode. The MLCA exhibits notable micron-level displacement output characteristics in resonant mode, as demonstrated by finite element calculations and device performance characterization. This offers a promising avenue for the development of cost-effective miniaturized precision piezoelectric actuator devices.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117864"},"PeriodicalIF":3.9,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700063","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

In situ construction of η-Fe2O3/g-C3N4 Z-scheme heterojunction on nickel foam with efficient interfacial charge transport for enhanced photodegradation of Rhodamine B 在泡沫镍上原位构建 η-Fe2O3/g-C3N4 Z 型异质结，实现高效的界面电荷传输，增强罗丹明 B 的光降解能力

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-25 DOI: 10.1016/j.mseb.2024.117868

Han Li, Fusen Zhang, Yan Ma, Yutong Wu, Siying Sun, Shuo Sun, Ge Xu

{"title":"In situ construction of η-Fe2O3/g-C3N4 Z-scheme heterojunction on nickel foam with efficient interfacial charge transport for enhanced photodegradation of Rhodamine B","authors":"Han Li, Fusen Zhang, Yan Ma, Yutong Wu, Siying Sun, Shuo Sun, Ge Xu","doi":"10.1016/j.mseb.2024.117868","DOIUrl":"10.1016/j.mseb.2024.117868","url":null,"abstract":"<div><div>The design of efficient, low cost and recyclable photocatalyst is of great significance for disposing organic wastewater. In this work, η-Fe2O3/g-C3N4 heterostructure was constructed by in-situ cyclic voltammetry codeposition and calcination on nickel foam (NF). The microstructural and morphological characterization of the sample confirmed that spherical η-Fe2O3/g-C3N4 nanocomposites were co-deposited on three-dimensional porous NF to form Fe2O3/g-C3N4/NF photoelectrode under 50 cycles of 50 mV/s electric field. The removal rate of as-prepared η-Fe2O3/g-C3N4/NF photoelectrode for 10 mg·L−1 Rhodamine B solution reaches 95.2 % in 1h, which is 5.6 times of g-C3N4/NF and 5.3 times of η-Fe2O3/NF, respectively. According to the electrochemical test results, the enhanced photocatalytic activity of η-Fe2O3/g-C3N4/NF was principally due to efficient photogenerated charge separation and transfer ability of the photoelectrode. The results of active species capture experiments indicate that superoxide radical, hydroxyl radical and hole almost equivalently participated in photodegradation of η-Fe2O3/g-C3N4/NF, and its possible photodegradation mechanism was proposed on the basis of Z-scheme charge transport path. The η-Fe2O3/g-C3N4/NF nanocomposites would be expected to become a promising photoelectrode for large-scale applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117868"},"PeriodicalIF":3.9,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700067","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

Sodium doped CsPbI3-PMMA composite electrospun fibrous membranes for aqueous photocatalyst and LED 用于水性光催化剂和 LED 的钠掺杂 CsPbI3-PMMA 复合电纺纤维膜

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-25 DOI: 10.1016/j.mseb.2024.117835

Haohan Yang , Ke Li , Yuang Ji , Donghai Lin , Wan Y. Shih , Wei-Heng Shih

{"title":"Sodium doped CsPbI3-PMMA composite electrospun fibrous membranes for aqueous photocatalyst and LED","authors":"Haohan Yang , Ke Li , Yuang Ji , Donghai Lin , Wan Y. Shih , Wei-Heng Shih","doi":"10.1016/j.mseb.2024.117835","DOIUrl":"10.1016/j.mseb.2024.117835","url":null,"abstract":"<div><div>All-inorganic CsPbI3 halide perovskite nanocrystals exhibit excellent photoluminescent properties, but their ambient instability presents a challenge. Adding dopants has been an effective way to improve stability. However, very few work was done for CsPbI3, which is relevant for optoelectronic and photovoltaic applications. Here sodium doped CsPbI3 nanocrystals were precipitated in situ in PMMA polymer matrix at room temperature using an electrospinning technique. It was found that the sodium doping improved the photoluminescence intensity and stability of Na-doped CsPbI3@PMMA electrospun fibrous membranes (EFMs) both in air and in water with an optimal concentration of Na/Pb = 0.75. It is speculated that sodium doping creates a core–shell structure with the sodium passivates the shell while the emission wavelength of the core blue-shifts due to the quantum confinement effect. Furthermore, EFMs can be used as photocatalysts to degrade methyl orange and to create white-LED with CIE of (0.2935, 0.3304) and color temperature of 7227 k.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117835"},"PeriodicalIF":3.9,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700064","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

Enhanced electrochemical stability of poly(pyridylthiophene) with zirconium dioxide/zirconium disulphide nanocomposites for high-performance supercapacitors 增强聚（吡啶基噻吩）与二氧化锆/二硫化锆纳米复合材料在高性能超级电容器中的电化学稳定性

IF 3.9 3区材料科学

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-23 DOI: 10.1016/j.mseb.2024.117856

Joseph Raj Xavier

{"title":"Enhanced electrochemical stability of poly(pyridylthiophene) with zirconium dioxide/zirconium disulphide nanocomposites for high-performance supercapacitors","authors":"Joseph Raj Xavier","doi":"10.1016/j.mseb.2024.117856","DOIUrl":"10.1016/j.mseb.2024.117856","url":null,"abstract":"<div><div>Zirconium dioxide (ZrO2) and zirconium disulphide (ZrS2) nanoparticles were added to poly(pyridylthiophene) (PPT) to improve its electrochemical stability. Characterization and comparison with pristine PPT were conducted to understand the surface influence, crystalline structure, and electrochemical performance of the PPT/ZrO2/ZrS2 material. Without reducing its available specific capacitance, surface modification can increase PPT’s structural stability. Through the use of AC impedance and cyclic voltammetry (CV) methods in a 3 M KOH electrolyte, the electrochemical characteristics of the produced PPT/ZrO2/ZrS2 electrode were assessed. PPT, PPT/ZrO2, PPT/ZrS2, and PPT/ZrO2/ZrS2 each had specific capacitances of 265, 655, 747, and 1326F/g at 5 A/g. The Zr4+ ions’ synergistic impact in the PPT/ZrO2/ZrS2 electrode material is responsible for this improvement. The energy and power density of the PPT/ZrO2/ZrS2 electrode in KOH are 166 Wh kg−1 and 664 W kg−1, respectively. After 10,000 cycles, the capacitance only loses 4 % of its initial value. The resulting PPT/ZrO2/ZrS2 nanocomposite included multilayer structures that were extremely stable and porous. The PPT/ZrO2/ZrS2 nanocomposites perform well electrochemically and structurally, making them suitable materials for use in supercapacitors.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering B-advanced Functional Solid-state Materials","volume":"312 ","pages":"Article 117856"},"PeriodicalIF":3.9,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700065","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