Materials Research Bulletin最新文献_第2页

Superior dielectric temperature stability and high energy-storage density of ecologically friendly 0.7(0.94Bi0.5Na0.5TiO3–0.06BaTiO3)-0.3Ba(Mg1/3Ta2/3)O3 ceramics 生态友好型 0.7（0.94Bi0.5Na0.5TiO3-0.06BaTiO3）-0.3Ba（Mg1/3Ta2/3）O3 陶瓷的卓越介电温度稳定性和高储能密度

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-20 DOI: 10.1016/j.materresbull.2024.113224

Tianyu Li, Qisheng Chen, Yue Tian, Shuwang Shen, Aiwen Xie, Xuewen Jiang, Cong Zhou, Yi Zhang, Ruzhong Zuo

{"title":"Superior dielectric temperature stability and high energy-storage density of ecologically friendly 0.7(0.94Bi0.5Na0.5TiO3–0.06BaTiO3)-0.3Ba(Mg1/3Ta2/3)O3 ceramics","authors":"Tianyu Li, Qisheng Chen, Yue Tian, Shuwang Shen, Aiwen Xie, Xuewen Jiang, Cong Zhou, Yi Zhang, Ruzhong Zuo","doi":"10.1016/j.materresbull.2024.113224","DOIUrl":"10.1016/j.materresbull.2024.113224","url":null,"abstract":"<div><div>Recently, much attention has been given to dielectric ceramic capacitors, which have excellent temperature stability and a high energy-storage density. Ecologically friendly ceramics ((1-<em>x</em>)(0.94Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>–0.06BaTiO<sub>3</sub>)-<em>x</em>Ba(Mg<sub>1/3</sub>Ta<sub>2/3</sub>)O<sub>3</sub>, where <em>x</em> = 0, 0.15, 0.2, 0.25, or 0.3) were synthesised using a conventional solid-state method. The ceramic sample with <em>x</em> = 0.3 exhibited a superior dielectric temperature stability, relative permittivity that varied within ±15%, and low dielectric loss of less than 0.02 over a temperature range of −100 to +307 °C, which met the X9R specifications. In addition, a scanning electron microscopy image confirmed that the sample had a dense and uniform microstructure. Furthermore, a high recoverable energy-storage density of 6.75 <em>J</em>/cm<sup>3</sup> was obtained for the ceramic sample with <em>x</em> = 0.3 under a moderate applied electric field of 420 kV/cm. These characteristics suggest that it is a promising candidate for an ecologically friendly temperature-insensitive dielectric ceramic for energy-storage capacitors.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113224"},"PeriodicalIF":5.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705732","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

Interfacing inorganic halide perovskites with metal-organic frameworks: Color tunable emission, energy transfer, and advanced anti-counterfeiting application 无机卤化物包荧光体与金属有机框架的相互作用：颜色可调发射、能量转移和先进的防伪应用

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.materresbull.2024.113218

Santosh Kachhap , Akhil Kumar Rai , Akhilesh Kumar Singh , Sunil Kumar Singh

{"title":"Interfacing inorganic halide perovskites with metal-organic frameworks: Color tunable emission, energy transfer, and advanced anti-counterfeiting application","authors":"Santosh Kachhap , Akhil Kumar Rai , Akhilesh Kumar Singh , Sunil Kumar Singh","doi":"10.1016/j.materresbull.2024.113218","DOIUrl":"10.1016/j.materresbull.2024.113218","url":null,"abstract":"<div><div>This work presents an inorganic halide perovskite (CsPbBr<sub>3</sub>) is interfaced with a europium metal-organic framework (Eu-MOF). The presence of characteristic absorption edge and band edge emission of CsPbBr<sub>3</sub> reveal a successful formation of CsPbBr<sub>3</sub>@Eu-MOF hybrid. The bi-flower morphology of Eu-MOF has tetragonal structure with space group <em>P</em>4<sub>3</sub>22. The conical part of the bi-flower consists of many squared rods of edge length 200 nm. The CsPbBr<sub>3</sub>@Eu-MOF shows color-tunable emission under different excitation wavelengths whose CIE color coordinate covers the entire green to red region. The maximum luminous efficacy of the optical radiation achieved is 359 lm/W, and the maximum color purity is 94.4 %, which is significant for optical applications. Further for anti-counterfeiting application, a pattern “LMDD” is encrypted on four different substrates and the color change is captured under different excitation wavelengths. The results show that CsPbBr<sub>3</sub>@Eu-MOF is highly suitable for encryption and decryption of security codes particularly on plastic surface.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113218"},"PeriodicalIF":5.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705735","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

Colloidal TiO₂ solid spheres as high-performance anodes for Lithium-ion batteries: Synthesis, characterization, and optimization 作为锂离子电池高性能阳极的胶体 TiO₂固态球：合成、表征和优化

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.materresbull.2024.113221

Basharat Hussain , Abid Ullah , Wasim Abbas , Shahbaz Ahmad , Mehmet Egilmez , P. Rosaiah , Yusuf Siraj Usmani , Tensangmu Lama Tamang , Iftikhar Hussain

{"title":"Colloidal TiO₂ solid spheres as high-performance anodes for Lithium-ion batteries: Synthesis, characterization, and optimization","authors":"Basharat Hussain , Abid Ullah , Wasim Abbas , Shahbaz Ahmad , Mehmet Egilmez , P. Rosaiah , Yusuf Siraj Usmani , Tensangmu Lama Tamang , Iftikhar Hussain","doi":"10.1016/j.materresbull.2024.113221","DOIUrl":"10.1016/j.materresbull.2024.113221","url":null,"abstract":"<div><div>Anatase phase TiO<sub>2</sub> nanoparticles were successfully synthesized by annealing amorphous colloidal TiO<sub>2</sub> spheres. The colloidal TiO<sub>2</sub> nanoparticles exhibited enhanced specific discharge capacities ∼296 (0.1C), 185 (1C), 127 (2C), 101 (5C) and 82 mAh g<sup>-1</sup> (10C) in contrast to their amorphous counterparts ∼182 (0.1C), 119 (1C), 81 (2 C), 43 (5 C) and 18 mAh g<sup>-1</sup> (∼10C rates). Amorphous TiO<sub>2</sub> nanoparticles developed a layer of solid electrolyte interface (SEI) comprising lithium carbonate, lithium alkyl carbonates, and organic phosphates, leading to heightened intrinsic resistance of cells and diminished performance in terms of rate and cycling. Conversely, annealing at high temperatures effectively eliminates chemisorbed water and hydroxyl groups, resulting in improved stability under varying rates and during cycling for lithium-ion batteries based on titanium dioxide. The annealed colloidal TiO<sub>2</sub> demonstrated notably elevated specific discharge capacities and capacity retention of 93.5 % compared to amorphous titanium dioxide spheres of 42.1 %.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113221"},"PeriodicalIF":5.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721233","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

Solvothermal synthesized mesoporous BiOCl nano-ellipsoids with oxygen vacancies for photocatalytic degradation of low density polyethylene (LDPE) plastic 溶热合成含氧空位的介孔 BiOCl 纳米椭球体，用于光催化降解低密度聚乙烯（LDPE）塑料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.materresbull.2024.113214

Sakshi Sharma , Aman Deep Acharya , Yugesh Singh Thakur , Bhawna

{"title":"Solvothermal synthesized mesoporous BiOCl nano-ellipsoids with oxygen vacancies for photocatalytic degradation of low density polyethylene (LDPE) plastic","authors":"Sakshi Sharma , Aman Deep Acharya , Yugesh Singh Thakur , Bhawna","doi":"10.1016/j.materresbull.2024.113214","DOIUrl":"10.1016/j.materresbull.2024.113214","url":null,"abstract":"<div><div>This study explores mesoporous BiOCl nanoparticles as a promising photocatalyst for low-density polyethylene (LDPE) degradation under visible light for the first time. A solvothermal synthesis yields BiOCl nanoparticles with a high ratio of exposed {010} facets and abundant oxygen vacancies (OVs). These properties, along with the co-existence of Bi³<sup>-x</sup> and Bi³⁺<sup>x</sup> defect states, promote a tailored surface chemistry with high surface-bound hydroxyl groups. These properties optimize light absorption by inducing favorable surface states, leading to a red shift in the light absorption edge for efficient utilization of visible light. Additionally, OVs suppress the recombination of photo-generated charge carriers and enhance their transfer rate. Furthermore, the free-standing LDPE/BiOCl nanocomposite films of 50μm, prepared via solution casting technique with varying BiOCl weight percentages (3, 5, and 7 wt.%), exhibit remarkable photocatalytic activity. The analysis of photodegraded LDPE confirms the presence of carbonyl groups (C.I.= 86%), cracks, pores, and hydroxyl radicals (•OH), alongside reduced thermal stability and band gap changes. Through meticulous analysis of the results obtained, we have ascertained that the optimal photocatalytic degradation of LDPE is achieved by incorporating up to 5 wt.% of BiOCl.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113214"},"PeriodicalIF":5.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721236","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

Biomass-derived activated carbon/cerium oxide nanocomposite as adsorptive photocatalyst for effective removal of carcinogenic dye 生物质衍生活性炭/氧化铈纳米复合材料作为吸附性光催化剂有效去除致癌染料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.materresbull.2024.113212

K. Sumi, K.S. Supraja, R.C. Aashika, M. Arivanandhan

{"title":"Biomass-derived activated carbon/cerium oxide nanocomposite as adsorptive photocatalyst for effective removal of carcinogenic dye","authors":"K. Sumi, K.S. Supraja, R.C. Aashika, M. Arivanandhan","doi":"10.1016/j.materresbull.2024.113212","DOIUrl":"10.1016/j.materresbull.2024.113212","url":null,"abstract":"<div><div>Semiconductor-based photocatalysts offer potential solutions for carcinogenic dye-related issues in water under light irradiation. However, their efficiency is affected by the recombination of photoelectrons and holes. The present study focuses on synthesizing biomass-derived activated carbon (AC), Cerium Oxide (CeO<sub>2</sub>), and AC/CeO<sub>2</sub> (ACO) nanocomposites for toxic dye degradation. The physicochemical properties of samples were analyzed by XRD, SEM, EDX, TEM, UV–visible, Raman, XPS, and PL analysis. The photocatalytic performance of AC, CeO<sub>2,</sub> and ACO nanocomposites was evaluated under dark and light conditions for the removal of carcinogenic Rhodamine B (RhB). ACO nanocomposites exhibited adsorptive-photocatalytic performance, displaying unique adsorption and photocatalytic degradation rates due to their synergistic combination. Remarkably, the ACO-4 composite showed lower recombination of <em>e</em><sup>−</sup>/<em>h</em><sup>+</sup> pairs, thereby exhibiting superior photocatalytic activity compared to other samples. The degradation rate constant under light was 0.1815 min⁻¹ with a half-life time of 3.81 min, whereas in dark, it was 0.0665 min⁻¹ with a half-life time of 10.42 min.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113212"},"PeriodicalIF":5.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721234","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

Zn-doped Co3O4 nanoparticles: promising room temperature sensor materials for efficient triethylamine (TEA) detection 掺锌 Co3O4 纳米粒子：有望用于高效检测三乙胺 (TEA) 的室温传感器材料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-18 DOI: 10.1016/j.materresbull.2024.113201

Amensisa Negasa Begi , Shahid Hussain , Jesse Nii Okai Amu-Darko , Tahani Mazyad Almutairi , Muhammad Javed Liaqat , Amjad Iqbal , Rajesh Kumar Manavalan , Xiangzhao Zhang , Guanjun Qiao , Guiwu Liu

{"title":"Zn-doped Co3O4 nanoparticles: promising room temperature sensor materials for efficient triethylamine (TEA) detection","authors":"Amensisa Negasa Begi , Shahid Hussain , Jesse Nii Okai Amu-Darko , Tahani Mazyad Almutairi , Muhammad Javed Liaqat , Amjad Iqbal , Rajesh Kumar Manavalan , Xiangzhao Zhang , Guanjun Qiao , Guiwu Liu","doi":"10.1016/j.materresbull.2024.113201","DOIUrl":"10.1016/j.materresbull.2024.113201","url":null,"abstract":"<div><div>A remarkable Zn-doped Co<sub>3</sub>O<sub>4</sub> nanoparticle material exhibiting exceptional potential as a triethylamine (TEA) sensor was presented. Zn-doped Co<sub>3</sub>O<sub>4</sub> nanoparticles were synthesized using a facile solvothermal method with varying concentrations of zinc dopant. The effects of Zn doping on the sensor triethylamine detection capabilities were investigated, revealing a notable enhancement in sensitivity and selectivity with a response of 2.04 at 25 °C. Furthermore, the calculated response and recovery times at the optimum temperature were 7.5 s and 27.8 s, respectively, making it an energy-efficient and quicker alternative to conventional sensors. This improvement in the sensing performance can be attributed to the optimized electronic structure and chemical properties achieved through Zn doping, which promoted the formation of abundant oxygen vacancies and improved the number of adsorption sites. These findings demonstrate that Zn-doped Co<sub>3</sub>O<sub>4</sub> nanoparticles are promising sensor materials for efficient TEA detection, with potential applications in various industries.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113201"},"PeriodicalIF":5.3,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705723","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

Integration of Cu2O-NiTiO3 as an efficient p-n heterojunction visible light photocatalytic system for the simultaneous removal of Cr (VI) and Alizarine Cyanine Green dye 将 Cu2O-NiTiO3 整合为高效的 p-n 异质结可见光光催化系统，用于同时去除 Cr (VI) 和 Alizarine 青绿染料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-17 DOI: 10.1016/j.materresbull.2024.113213

Thirumalai Lakshmi , A. Mohammed Basheer Ali , Noor Danish Ahrar Mundari , T. Mishra , Noor Aman

{"title":"Integration of Cu2O-NiTiO3 as an efficient p-n heterojunction visible light photocatalytic system for the simultaneous removal of Cr (VI) and Alizarine Cyanine Green dye","authors":"Thirumalai Lakshmi , A. Mohammed Basheer Ali , Noor Danish Ahrar Mundari , T. Mishra , Noor Aman","doi":"10.1016/j.materresbull.2024.113213","DOIUrl":"10.1016/j.materresbull.2024.113213","url":null,"abstract":"<div><div>Cu<sub>2</sub>O loaded NiTiO<sub>3</sub> based p-n heterojunction photocatalysts of various proportions have been synthesized by liquid phase reduction process resulting in NiTiO<sub>3</sub> nanoparticles dispersed on the surface of Cu<sub>2</sub>O. Formation of both oxide phases is confirmed from the XRD, HR-SEM and XPS analysis. Heterojunction formation is confirmed by the intimate contact between NiTiO<sub>3</sub> and Cu<sub>2</sub>O as evidenced by HR-TEM. UV-Vis spectra exhibit a red shift indicating the extended visible light absorption. XPS shows the presence of oxidation states of Ni<sup>2+</sup>, Ti<sup>4+</sup>, Cu<sup>+</sup>, Cu<sup>2+</sup> and O<sup>2-</sup>. Heterojunction materials showed enhanced activity for the simultaneous photocatalytic reduction of Cr (VI) and degradation of Alizarine Cyanine Green dye under visible light irradiation. 1:2 ratio of Cu<sub>2</sub>O and NiTiO<sub>3</sub> heterojunction (1C:2N) material exhibits 100% dye degradation in 90 minutes and Cr (VI) reduction in 180 minutes. Higher activity of Cu<sub>2</sub>O-NiTiO<sub>3</sub> p-n heterojunction is ascribed to the effective charge separation and extended visible light absorption</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113213"},"PeriodicalIF":5.3,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705728","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

Superior EMI shielding behavior of multi-layer structure of PVDF based laminated nanocomposite material by controlling the size and distribution of W-type hexaferrite magnetic nanofillers therein 通过控制其中 W 型六价铁氧体磁性纳米填料的尺寸和分布，实现基于 PVDF 的层状纳米复合材料多层结构的优异电磁干扰屏蔽性能

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-17 DOI: 10.1016/j.materresbull.2024.113210

Aliva Saha , Tanmoy Chakraborty , Suman Saha , Subhojit Dutta , Tanmay Kundu , Sayak Mukherjee , Sukhen Das , Soumyaditya Sutradhar

{"title":"Superior EMI shielding behavior of multi-layer structure of PVDF based laminated nanocomposite material by controlling the size and distribution of W-type hexaferrite magnetic nanofillers therein","authors":"Aliva Saha , Tanmoy Chakraborty , Suman Saha , Subhojit Dutta , Tanmay Kundu , Sayak Mukherjee , Sukhen Das , Soumyaditya Sutradhar","doi":"10.1016/j.materresbull.2024.113210","DOIUrl":"10.1016/j.materresbull.2024.113210","url":null,"abstract":"<div><div>The effects of size and distribution of magnetic filler materials with different loading percentages inside PVDF matrix having mono-layer and multi-layer structures for the modulation of EMI shielding behavior are discussed in the present report. W-type hexaferrites are prepared using the sol-gel method, followed by the manually mortared and ball-milled techniques and embedded inside the PVDF matrix separately. Phase analysis and morphological studies are performed and discussed herein to understand the effect of ball mill technique, over the manually mortared process of W-type hexaferrites. Magnetic and dielectric studies are performed and the influence of the ball mill technique on magnetic and dielectric behavior of nanofillers as well as nanocomposite systems are discussed. Various physical properties of the nanocomposite films are performed within the range of 8-12 GHz. Significant modulations of complex permeability and the complex permittivity with size, distribution and loading percentage of the W-type hexaferrite inside PVDF matrix are found and the effect of impedance matching on EMI shielding behavior are also discussed. EMI shielding behavior of the resultant W-type hexaferrite-PVDF films in the 8-12 GHz frequency region shows the modulations of their absorption and/or reflection effectiveness due to the variation of the size, distribution and loading percentage of magnetic filler materials inside PVDF matrix. Both mono-layer and multi-layer structures of W-type hexaferrite-PVDF films are considered and the effect of thickness on the various parts of EMI shielding behavior is also reported.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113210"},"PeriodicalIF":5.3,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705733","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

Silica-reinforced functional composite polymer electrolyte with high electrochemical compatibility for solid-state lithium metal battery 用于固态锂金属电池的具有高电化学兼容性的硅增强功能复合聚合物电解质

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-17 DOI: 10.1016/j.materresbull.2024.113209

Bhargabi Halder , A. Santhana Krishna Kumar , Wei-Lung Tseng , Perumal Elumalai

{"title":"Silica-reinforced functional composite polymer electrolyte with high electrochemical compatibility for solid-state lithium metal battery","authors":"Bhargabi Halder , A. Santhana Krishna Kumar , Wei-Lung Tseng , Perumal Elumalai","doi":"10.1016/j.materresbull.2024.113209","DOIUrl":"10.1016/j.materresbull.2024.113209","url":null,"abstract":"<div><div>Composite polymer-ceramic electrolytes (CPEs) are emerging as viable substitute providing high ionic conductivity, mechanical stability, and good safety for the progress of all-solid-state rechargeable batteries. Here, SiO<sub>2</sub> particles were generated from beach sands via a simple gelation method and embedded in to poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) to obtain precisely two types of the electrolytes namely, electrospun and solution casted. The 2.5 wt.% SiO<sub>2</sub>-embedded CPEs generated by electrospinning and solution-casting exhibit best ionic conductivities being 3.6 × 10<sup>–4</sup> and 1.3 × 10<sup>–4</sup> S cm<sup>-1</sup> at 30 °C, respectively. The polarization voltage for the electrospun CPE was particularly low and showed an extremely stable voltage plateau up to 300 h demonstrating high electrochemical compatibility and immense cycling stability. Consequently, the all solid-state lithium metal battery (Li|CPE|LiFePO<sub>4</sub>) using the electrospun CPE initially exhibits a discharge capacity of 142 mAh g<sup>-1</sup> at 0.1C-rate superior to that of the full cell using the solution-casted CPE.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113209"},"PeriodicalIF":5.3,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705731","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

Electropolymerization of an Ultra-thin Film on bimetallic nanocomposite: Enhanced performance, perfect stability for supercapacitors 双金属纳米复合材料超薄薄膜的电聚合：增强超级电容器的性能和完美稳定性

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2024-11-17 DOI: 10.1016/j.materresbull.2024.113211

Samira Doostikhah , Mehdi Shabani-Nooshabadi , Ali Ehsani , Mohammad Bigdeloo

{"title":"Electropolymerization of an Ultra-thin Film on bimetallic nanocomposite: Enhanced performance, perfect stability for supercapacitors","authors":"Samira Doostikhah , Mehdi Shabani-Nooshabadi , Ali Ehsani , Mohammad Bigdeloo","doi":"10.1016/j.materresbull.2024.113211","DOIUrl":"10.1016/j.materresbull.2024.113211","url":null,"abstract":"<div><div>This research focused on synthesizing nanocomposites from vanadium-1.3.5-benzene tricarboxylic acid (V-BTC), vanadium-molibden-1.3.5-benzene tricarboxylic acid (V-BTC-Mo), and vanadium-molibden-1.3.5-benzene tricarboxylic acid/poly-orto-aminophenol (V-BTC-Mo/POAP) using chemical and electrochemical methods. The materials were analyzed using various analytical techniques such as XRD, FT-IR, FE-SEM, Elemental Mapping, and Edx. The SEM images revealed a nanorod structure of metal-organic framework (MOF) with a high specific surface area (SSA) of 131.13 m<sup>2</sup>.g<sup>−1</sup> determined by nitrogen adsorption-desorption analysis. Electrochemical techniques including galvanostatic charge-discharge (GCD), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV) were employed to assess the supercapacitor (SC) properties. The results indicated that the V-BTC-MO/POAP composite exhibited a high specific capacitance (Cs) of 420.2 F g<sup>−1</sup>, with a high energy density of 38.1 Wh kg<sup>−1</sup> at a power density of 236.2 W kg<sup>−1</sup>. Also, the V-BTC-Mo/POAP electrode demonstrated a good performance in structural stability by maintaining 97.3 % of the initial capacitance after 5000 continuous charge-discharge. Overall, the research aimed to develop a new methodology for synthesizing bimetallic nanocomposites and enhancing the performance of SCs in a three and two-electrode system, particularly focusing on vanadium and MOF-based electrodes.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"183 ","pages":"Article 113211"},"PeriodicalIF":5.3,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705734","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