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A general synthesis of inorganic nanotubes as high-rate anode materials of sodium ion batteries

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Journal of Energy Chemistry 2023年第2期77卷 369-375,I0010页

作者： Chunting Wang Ningyan Cheng Zhongchao Bai Qinfen Gu Feier Niu Xun Xu Jialin Zhang Nana Wang Binghui Ge Jian Yang Yitai Qian shixue dou Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinan 250100ShandongChina Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601AnhuiChina College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdao 266590ShandongChina Australian Synchrotron 800 Blackburn RoadClaytonVIC 3168Australia College of Chemistry and Materials Engineering Anhui Science and Technology UniversityBengbu 233000AnhuiChina Institute for Superconducting and Electronic Materials University of Wollongong Innovation Campus Innovation Campus Squires WayWollongongNew South Wales 2500Australia Institute of Energy Materials Science(IEMS) University of Shanghai for Science and TechnologyShanghai 200093China

Ino rganic tubular materials have an exceptionally wide range of applications,yet developing a simple and universal method to controllably synthesize them remains *** this work,we report a vaporphase-etching hard-template method that can directly fabricate tubes on various thermally stable oxide and sulfide *** synthesis method features the introduction of a vapor-phase-etching process to greatly simplify the steps involved in preparing tubular materials and avoids complicated postprocessing ***,the in-situ heating transmission electron microscopy(TEM)technique is used to observe the dynamic formation process of TiO_(2-x) tubes,indicating that the removal process of the Sb2S3 templates first experienced the Rayleigh instability,then vapor-phase-etching *** used as an anode for sodium ion batteries,the TiO_(2-x) tube exhibits excellent rate performance of134.6 mA h g^(-1) at the high current density of 10 A g^(-1) and long-term cycling over 7000 ***,the full cell demonstrates excellent cycling performance with capacity retention of 98%after 1000 cycles,indicating that it is a promising anode material for *** method can be expanded to the design and synthesis of other thermally-stable tubular materials such as ZnS,MoS_(2),and SiO_(2).

关键词： Tubular materials In-situ heating TEM Sodium ion batteries TiO_(2) Hard template methods

Bifunctional flame retardant solid-state electrolyte toward safe Li metal batteries

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能源化学:英文版 2023年第6期81卷 613-622,I0014页

作者： Qiang Lv Yajie Song Bo Wang Shangjie Wang Bochen Wu Yutong Jing Huaizheng Ren Shengbo Yang Lei Wang Lihui Xiao Dianlong Wang Huakun Liu shixue dou MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Institute for Superconducting&Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongWollongongNSW 2500Australia Institute of Energy Material Science University of Shanghai for Science and TechnologyShanghai 200093China

Solid polymer electrolytes(SPEs)are one of the most promising alternatives to flammable liquid electrolytes for building safe Li metal ***,the poor ionic conductivity at room temperature(RT)and low resistance to Li dendrites seriously hinder the commercialization of ***,we design a bifunctional flame retardant SPE by combining hydroxyapatite(HAP)nanomaterials with Nmethyl pyrrolidone(NMP)in the PVDF-HFP *** addition of HAP generates a hydrogen bond network with the PVDF-HFP matrix and cooperates with NMP to facilitate the dissociation of Li TFSI in the PVDF-HFP ***,the prepared SPE demonstrates superior ionic conductivity at RT,excellent fireproof properties,and strong resistance to Li *** assembled Li symmetric cell with prepared SPE exhibits a stable cycling performance of over 1200 h at 0.2 m A cm^(-2),and the solid-state LiFePO_4||Li cell shows excellent capacity retention of 85.3%over 600 cycles at 0.5 C.

关键词： Solid polymer electrolytes Safe Li metal batteries Li dendrites Hydroxyapatite N-methyl pyrrolidone PVDF-HFP Fireproof property

Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels

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Nano Research 2015年第8期8卷 2503-2514页

作者： Jianping Yang Dengke Shen Yong Wei Wei Li Fan Zhang Biao Kong Shaohua Zhang Wei Teng Jianwei Fan Weixian Zhang shixue dou Dongyuan Zhao College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resources Reuse Tongji University Shanghai 200092 China Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials Fudan University Shanghai 200433 China Institute for Superconducting & Electronic Materials Australian Institute of Innovative Materials University of Wollongong Innovation Campus Squires Way North Wollongong NSW 2500 Australia Key Laboratory of Materials Physics Centre for Environmental and Energy Nanomaterials Anhui Key Laboratory of Nanomaterials and Nanotechnology Institute of Solid State Physics Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei 230031 China

The rational design and precise synthesis of multifunctional hybrid nanostructures with a tailored active core and a large, dendritic, modified mesoporous structured shell can promote catalysis, energy storage, and biological applications. Here, an oil-water biphase stratification coating strategy has been developed to prepare monodisperse magnetic dendritic mesoporous silica core-shell structured nano- spheres. These sophisticated Fe3O4@SiO2@dendritic-mSiO2 nanospheres feature large dendritic open pores （2.7 and 10.3 nm）. Significantly, the silica shells can be converted into dendritic mesoporous aluminosilicate frameworks with unchanged porosity, a Si/Al molar ratio of 14, and remarkably strong acidic sites, through a post-synthesis approach. In addition, the resultant magnetic dendritic mesoporous aluminosilicate nanospheres exhibit outstanding properties and promising application in phosphate removal from wastewater.

关键词： mesoporous materials core-shell structures aluminosilicates magnetic property surface acid

EQUILIBRIUM PHASE DIAGRAMS IN SYSTEM CuO-PbO-Ag

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Acta Metallurgica Sinica(English Letters) 1996年第2期9卷 99-102页

作者： SHAO Zhongbao LIU Kuiren MENG Bo LI Ying YANG Yuqing(Department of Chemistry,Northeastern University,Shenyang 110006, China) LIU Huakun dou shixue(University of New South Wales,Kensington,Australia) Northeastern Univ Shenyang China

Phase equilibrium in the ternary CuO-PbO-Ag system has been investigated using differential thermal analysis(DTA),thermogravimetry(TG),scanning electron microscopy(SEM) and X-ray diffraction(XRD) *** the ternary CuO-PbO-Ag system,there is a eutectic reaction CuO+PbO+Ag=L at 750℃ and a composition of 12.04 mol.% Ag,16.35 mol.% CuO and 71.61 mol.% *** miscibility gaps near the two binary tie lines PbO-Ag and CuO-Ag were detected. No binary or ternary compound was detected in the ternary *** and energy dispersive spectroscopy(EDS) confirm the presence of two liquid phases and the eutectic point.

关键词： phase equilibrium CuO-PbO-Ag system,phase diagram,differential thermal analysis,X-ray diffraction

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硅酸盐熔体的结构及热力学性质

钢铁 1981年第5期16卷 59-67页

作者：窦士学东北工学院

本文评述了二元硅酸盐熔体的几种热力学模型,介绍了各种模型假设前提和要点,讨论了这些模型与热力学性质的关系,通过计算实例对不同模型所得的活度,混合自由能及离子分布等进行了比较,指出了各种模型的特点及限制条件。

关键词：硅酸盐熔体热力学模型强子反应模型物理性能混合自由能

Novel high capacity anode materials for Sodium ion battery

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Novel high capacity anode materials for Sodium ion battery

第一届全国储能科学与技术大会

作者： CHOU Shulei LI Weijie WANG Yunxiao WANG Jiazhao LIU Hunkun dou shixue Institute for Superconducting and Electronic Materials University of Wollongong WollongongNSW 2522 Australia

Sodium-ion battery is a low cost energy storage device,which are similar in some ways to lithium-ion *** both systems,Na/Li ions are shuttled between the battery’s positive and negative electrodes during charging and *** into account recent concerns about a possible lithium shortage with the spread of electric vehicles,it is urgent to search for alternative energy

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缩聚理论对铝酸盐和硼酸盐系的应用

高等学校化学学报 1982年第4期3卷 503-509页

作者：窦士学东北工学院物理化学教研室

应用Folry的缩聚理论处理铝酸盐型熔体(MO-Al_(2)O_(3)),得到了聚合阴离子的分布函数。通过缩聚反应平衡常数可将混合自由能和组元活度表达为熔体组成的函数。预期了产生凝胶化的条件。由模型所得理论曲线与实验结果进行了比较。

关键词：混合自由能铝酸盐反应平衡常数理论曲线凝胶化硼酸盐缩聚分布函数

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大断面黄土隧道进洞段施工技术及其数值模拟

山西建筑 2016年第23期42卷 161-163页

作者：窦世学中铁二十五局集团第五工程有限公司山东青岛266000

针对大西客运专线忻州隧道进洞段埋深浅、断面大、围岩稳定性差的情况,提出采用短台阶七步开挖法和辅助工法施工,并采用Plaxis-3D有限元程序,对隧道开挖施工进行了数值模拟,同时结合施工现场实测结果作了对比分析,结果显示:短台阶七步... 详细信息

针对大西客运专线忻州隧道进洞段埋深浅、断面大、围岩稳定性差的情况,提出采用短台阶七步开挖法和辅助工法施工,并采用Plaxis-3D有限元程序,对隧道开挖施工进行了数值模拟,同时结合施工现场实测结果作了对比分析,结果显示:短台阶七步开挖法能有效控制围岩及地表沉降,但在施工过程中要施作超前大管棚、超前小导管等辅助工法,且要严格控制进尺。

关键词：黄土隧道大断面进洞开挖方案数值模拟

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由稻壳制备氮化硅的动力学研究

无机材料学报 1991年第1期6卷 45-52页

作者：李瑛刘灵清窦士学东北工学院化学系

本文用热重法研究了由稻壳制备 Si_3N_4的动力学问题,得出的速度控制步骤为 SiO 与 CO 气体通过碳粒子表面阻滞气层的扩散,活化能<41.858kJ/mol。在稻壳中加入 Fe_2O_3和 NaF,可以提高氮化率,降低活性能。添加剂的最佳加入量分别为:Fe_2... 详细信息

本文用热重法研究了由稻壳制备 Si_3N_4的动力学问题,得出的速度控制步骤为 SiO 与 CO 气体通过碳粒子表面阻滞气层的扩散,活化能<41.858kJ/mol。在稻壳中加入 Fe_2O_3和 NaF,可以提高氮化率,降低活性能。添加剂的最佳加入量分别为:Fe_2O_30.224wt%;SiO_2:NaF(摩尔比)=1∶0.1。氟化钠的催化作用强于氧化铁。

关键词：稻壳氮化硅热重法动力学