Microstructures最新文献_第2页

Leveraging novel microwave techniques for tailoring the microstructure of energy storage materials 利用新型微波技术定制储能材料的微观结构

Microstructures Pub Date : 2024-06-03 DOI: 10.20517/microstructures.2023.86

Yongfei You, Guangyu Fang, Miao Fan, Jiayue Guo, Qingxiang Li, Jun Wan

{"title":"Leveraging novel microwave techniques for tailoring the microstructure of energy storage materials","authors":"Yongfei You, Guangyu Fang, Miao Fan, Jiayue Guo, Qingxiang Li, Jun Wan","doi":"10.20517/microstructures.2023.86","DOIUrl":"https://doi.org/10.20517/microstructures.2023.86","url":null,"abstract":"In the dynamic landscape of energy storage materials, the demand for efficient microstructural engineering has surged, driven by the imperative to seamlessly integrate renewable energy. Traditional material preparation methods encounter challenges such as poor controllability, high costs, and stringent operational conditions. The advent of microwave techniques heralds a transformative shift, offering rapid responses, high-temperature energy, and superior controllability. This review critically examines the nuanced applications of microwave technology in tailoring the microstructure of energy storage materials, emphasizing its pivotal role in the energy paradigm and addressing challenges posed by conventional methods. Notably, non-liquid-phase advanced microwave technology holds promise for introducing novel models and discoveries compared to traditional liquid-phase microwave methods. The ensuing discussion explores the profound impact of advanced microwave strategies on microstructural engineering, highlighting discernible advantages in optimizing performance for energy storage applications. Various applications of advanced microwave techniques in this domain are comprehensively discussed, providing a forward-looking perspective on their untapped potential to propel transformative strides in renewable energy research. This review offers insights into the promising future of leveraging microwaves for tailoring the microstructure of energy storage materials.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141271963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface engineering of Li3V2(PO4)3-based cathode materials with enhanced performance for lithium-ion batteries working in a wide temperature range 基于 Li3V2(PO4)3 的正极材料的表面工程技术可提高锂离子电池在宽温度范围内的工作性能

Microstructures Pub Date : 2024-06-03 DOI: 10.20517/microstructures.2023.90

Minxia Liang, Yiting Wang, Hanghang Dong, Lei Wang, Qianqian Peng, Chao Yang, Yao Xiao, Yong Wang, Shulei Chou, Bing Sun, Shuangqiang Chen

{"title":"Surface engineering of Li3V2(PO4)3-based cathode materials with enhanced performance for lithium-ion batteries working in a wide temperature range","authors":"Minxia Liang, Yiting Wang, Hanghang Dong, Lei Wang, Qianqian Peng, Chao Yang, Yao Xiao, Yong Wang, Shulei Chou, Bing Sun, Shuangqiang Chen","doi":"10.20517/microstructures.2023.90","DOIUrl":"https://doi.org/10.20517/microstructures.2023.90","url":null,"abstract":"Operating at extreme temperatures is the biggest challenge for lithium-ion batteries (LIBs) in practical applications, as both the capacity and cycling stability of LIBs are largely decreased due to the sluggish reaction kinetics of the cathodes. Therefore, developing suitable cathode materials is the key point to tackling this challenge. Lithium vanadium phosphate [Li3V2(PO4)3, LVP] is a promising cathode with good features of a high working voltage, high intrinsic ionic diffusion coefficiency, and stable olivine structure in a wide temperature range, although it is perplexed by the low electronic conductivity. To tackle this issue, a series of nitrogen-doped carbon network (NC) coated LVP composites were synthesized using a hydrothermal-assisted sol-gel method. Among them, the LVP@NC-0.8 sample exhibited a remarkable tolerance at a high charging cutoff voltage of 4.8 V in a wide temperature range. Full cells of LVP@NC-0.8||graphite exhibited superior performance at different current rates. Moreover, the reaction mechanism of the LVP@NC-0.8 electrode was proved by in-situ X-ray diffraction technique, demonstrating that temperature was a critical factor that contributed to the sluggish phase transformation with high voltage hysteresis at low temperature and severe crystal structure distortion at high temperature. Theoretical calculations further demonstrated the superiority of the NC for high electronic conductivity and reduced lithium transportation barriers. The enhanced electrochemical performances of LVP-based cathode materials have provided the possible application of LIBs in a wide temperature range.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"37 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141270364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrating Cu/CuxO ternary nanocomposites with multi-walled carbon nanotubes enabling a high-performance nonenzymatic amperometric glucose sensor 将 Cu/CuxO 三元纳米复合材料与多壁碳纳米管集成，开发出高性能非酶安培葡萄糖传感器

Microstructures Pub Date : 2024-05-16 DOI: 10.20517/microstructures.2023.79

Weiyan Xi, Yupeng Zhang, Zhijia Zhang, Yu Chen, Xuanyuan Huang, Hongwei Mou, Zhaoxue Deng, Zhen Li, Xiaoxue Xu, Wei Zheng

{"title":"Integrating Cu/CuxO ternary nanocomposites with multi-walled carbon nanotubes enabling a high-performance nonenzymatic amperometric glucose sensor","authors":"Weiyan Xi, Yupeng Zhang, Zhijia Zhang, Yu Chen, Xuanyuan Huang, Hongwei Mou, Zhaoxue Deng, Zhen Li, Xiaoxue Xu, Wei Zheng","doi":"10.20517/microstructures.2023.79","DOIUrl":"https://doi.org/10.20517/microstructures.2023.79","url":null,"abstract":"We developed a new nonenzymatic amperometric glucose sensor by integrating a ternary nanocomposite, Cu/Cu2O/CuO (Cu/CuxO), with multi-wall carbon nanotubes (Cu/CuxO@MWCNTs) as the electrocatalyst. The Cu/CuxO@MWCNTs nanocomposite is prepared via an electroless plating process followed by thermal treatment. The constructed nanocomposites are systematically characterized with a transmission electron microscope, an X-ray diffractometer, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy, respectively. The Cu/CuxO@MWCNTs nanocomposites-modified glassy carbon electrodes exhibit high electrocatalytic activity toward glucose electrooxidation under alkaline conditions. The efficient electrocatalytic activity of Cu/CuxO@MWCNTs for glucose electrooxidation is utilized for glucose detection using Cu/CuxO@MWCNTs-modified glassy carbon electrodes. The Cu/CuxO@MWCNTs-modified electrode displays an excellent sensing performance within a wide analyte concentration from 0.005-6,000 M (low detection limit is calculated to be 0.003 μM) with superior stability, selectivity, repeatability, and reproductivity. This as-prepared electrochemical sensor is successfully applied to selective glucose detection with satisfactory results.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"57 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140970001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Na-deficient P2-type layered oxide cathodes for practical sodium-ion batteries 用于实用钠离子电池的缺钠 P2- 型层状氧化物阴极

Microstructures Pub Date : 2024-05-15 DOI: 10.20517/microstructures.2023.102

Yu Huang, Weixiong Zeng, Kui Li, Xiaobo Zhu

{"title":"Na-deficient P2-type layered oxide cathodes for practical sodium-ion batteries","authors":"Yu Huang, Weixiong Zeng, Kui Li, Xiaobo Zhu","doi":"10.20517/microstructures.2023.102","DOIUrl":"https://doi.org/10.20517/microstructures.2023.102","url":null,"abstract":"Sodium-ion batteries (SIBs) have attracted enormous attention as candidates in stationary energy storage systems, because of the decent electrochemical performance based on cheap and abundant Na-ion intercalation chemistry. Layered oxides, the workhorses of modern lithium-ion batteries, have regained interest for replicating their success in enabling SIBs. A unique feature of sodium layered oxides is their ability to crystallize into a thermodynamically stable P2-type layered structure with under-stoichiometric Na content. This structure provides highly open trigonal prismatic environments for Na ions, permitting high Na+ mobility and excellent structural stability. This review delves into the intrinsic characteristics and key challenges faced by P2-type cathodes and then comprehensively summarizes the up-to-date advances in modification strategies from compositional design, elemental doping, phase mixing, morphological control, and surface modification to sodium compensation. The updated understanding presented in this review is anticipated to guide and expedite the development of P2-type layered oxide cathodes for practical SIB applications.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140975850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomimetic-smart materials for osteochondral regeneration and repair 用于骨软骨再生和修复的仿生智能材料

Microstructures Pub Date : 2024-05-14 DOI: 10.20517/microstructures.2023.84

Qi-Peng Jia, Qunfeng Li, Hamza Boucetta, Z. Xu, Lingxiao Zhang

{"title":"Biomimetic-smart materials for osteochondral regeneration and repair","authors":"Qi-Peng Jia, Qunfeng Li, Hamza Boucetta, Z. Xu, Lingxiao Zhang","doi":"10.20517/microstructures.2023.84","DOIUrl":"https://doi.org/10.20517/microstructures.2023.84","url":null,"abstract":"Osteochondral injuries represent prevalent clinical conditions with profound implications for functional impairment and diminished quality of life. Despite the considerable potential of tissue engineering in osteochondral repair, substantial strides in clinical implementation remain elusive. Biomimetic materials, designed to emulate natural cartilage, offer a stabilized structure and microenvironment capable of accommodating the diverse properties inherent in different cartilage regions. Smart materials, endowed with the ability to deliver drugs, metal ions, and growth factors contingent on the disease progression, exert precise control over the microenvironment and cellular epigenetic behaviors. This review scrutinizes the nuanced characteristics of cartilage in both physiological and pathological states. Subsequently, a succinct overview of recent applications of biomaterials with bionic and smart attributes in osteochondral regeneration and repair is provided. Finally, we propose our perspectives on the application of biomimetic-smart materials in osteochondral regeneration and repair, emphasizing their potential clinical translation.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"19 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140980112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transition from isotropic positive to negative thermal expansion by local Zr6O8 node distortion in MOF-801 通过 MOF-801 中局部 Zr6O8 节点变形实现从各向同性正热膨胀到负热膨胀的转变

Microstructures Pub Date : 2024-04-18 DOI: 10.20517/microstructures.2023.70

Rui Ma, Zhanning Liu, Liang Chen, Qiang Li, K. Lin, Xin Chen, J. Deng, Koji Ohara, X. Xing

引用次数: 0

Research progress of amorphous catalysts in the field of electrocatalysis 电催化领域非晶态催化剂的研究进展

Microstructures Pub Date : 2024-04-17 DOI: 10.20517/microstructures.2023.66

Zhenyang Yu, Qi Sun, Lianwang Zhang, Huan Yang, Yuefang Chen, Junpeng Guo, Mengmeng Zhang, Zhijia Zhang, Yong Jiang

引用次数: 0

Si(111) islands on β-phase Si(111)√3 × √3R30°-Bi 在 β 相 Si(111)√3 × √3R30°-Bi 上的 Si(111) 岛屿

Microstructures Pub Date : 2024-04-10 DOI: 10.20517/microstructures.2023.74

P. De Padova, M. Jalochowski, A. Generosi, Carlo Ottaviani, C. Quaresima, B. Paci, B. Olivieri, M. Krawiec

引用次数: 0

Pressure-induced superconductivity in hypercoordinated 5p-block element nitrides MN6 (M = Sb, Te, I) 超配位 5p 块元素氮化物 MN6（M = Sb、Te、I）的压力诱导超导性

Microstructures Pub Date : 2024-03-27 DOI: 10.20517/microstructures.2023.91

Yan Liu, Da Li, Tian Cui

{"title":"Pressure-induced superconductivity in hypercoordinated 5p-block element nitrides MN6 (M = Sb, Te, I)","authors":"Yan Liu, Da Li, Tian Cui","doi":"10.20517/microstructures.2023.91","DOIUrl":"https://doi.org/10.20517/microstructures.2023.91","url":null,"abstract":"The recent studies of high-pressure synthesis and stabilization of a variety of polynitrogens have had an immense impact on nitrogen chemistry. However, the metallization and superconductivity of solid nitrogen at high pressure have not yet been verified. Here, based on first-principles calculations, we report a remarkable finding of the metallic N6 hexazine ring stabilized in the 5p -block element nitrides MN6 (M = Sb, Te, I) at an experimentally accessible pressure of 100 GPa. Strikingly, the 5p -block elements act as precompressors and electron donors for the N sublattice, leading to the Jahn-Teller distortion of the N6 hexazine ring and endowing the 5p -block element nitrides superconductivity with a high superconducting critical temperature (T c) of up to 36.8 K, close to the McMillan limit (40 K). This is the first discovery of a nitrogen-based superconductor with distorted N6 hexazine rings. The high T c is attributed to the strong electron-phonon coupling that is induced by the phonon softening and the hybridized electronic states between N and 5s and 5p orbitals of 5p -block elements. Our works have broad implications for enriching novel p -block element nitrides and nitrogen chemistry under extreme conditions.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"27 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140373935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pressure-induced superconductivity in SnSb2Te4 SnSb2Te4 中的压力诱导超导性

Microstructures Pub Date : 2024-02-27 DOI: 10.20517/microstructures.2023.60

Yanmei Ma, Hongbo Wang, Ruihong Li, Han Liu, Jian Zhang, Xianyu Wang, Q. Jing, Xu Wang, Wenping Dong, Jinman Chen, Bingze Wu, Yonghao Han, Dan Zhou, Chunxiao Gao

{"title":"Pressure-induced superconductivity in SnSb2Te4","authors":"Yanmei Ma, Hongbo Wang, Ruihong Li, Han Liu, Jian Zhang, Xianyu Wang, Q. Jing, Xu Wang, Wenping Dong, Jinman Chen, Bingze Wu, Yonghao Han, Dan Zhou, Chunxiao Gao","doi":"10.20517/microstructures.2023.60","DOIUrl":"https://doi.org/10.20517/microstructures.2023.60","url":null,"abstract":"Owing to their unique compositional and structural characteristics, layered van der Waals solids in binary and ternary chalcogenide families provide a fertile testbed for exploring novel exotic structures and states, e.g., topological insulators and superconductors. Herein, a comprehensive study on the structural variations and correlated electrical transport behavior of SnSb2Te4, a ternary member, has been carried out considering elevated pressures. Under 45.6 GPa, three distinct structural phase transitions have been observed, with strong evidence from the variations of high-pressure X-ray diffraction patterns. The onsets of phase II (monoclinic, C2/m ) at 6.3 GPa, phase III (monoclinic, C2/c ) at 15.5 GPa, and phase IV (body-centered cubic with substitutional disorder, Im-3m ) at 17.2 GPa have been observed owing to the emergence of new diffractions. Based on electrical measurements at low temperature and high pressure conditions, two pressure-induced superconducting states have been distinguished in SnSb2Te4. The first state occurs in the range of 12.3-17.1 GPa. The positive pressure dependence on Tc indicates that the aforementioned state is related to the monoclinic C2/m phase. At > 17.1 GPa, the second superconducting state emerges, with the negative pressure dependence on Tc . It relates to the body-centered cubic solid solution phase, which is characteristic of a substitutional disordered crystal structure. The discovery that the pressure-induced superconductivity in SnSb2Te4 is affected by structural phase transitions under pressure may help understand the universal relationship between the ambient condition topological insulating state and derived superconductivity. Ab initio theoretical calculations reveal that an electronic topological transition takes place at approximately 2.0 GPa, which is featured by the obvious changes in the distribution of electronic density of states near the Fermi level.","PeriodicalId":515723,"journal":{"name":"Microstructures","volume":"6 6‐7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140424757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0