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1.
水热电化学技术及其在陶瓷薄膜制备中的应用   总被引:16,自引:2,他引:14  
本文概括介绍软溶液工艺技术(Soft Solution Processing简记为SSP)中的重要工艺技术-水热电化学制备技术的基本原理和特点,重点介绍该技术在先进陶瓷薄膜材料(尤其是具有钙钛矿结构ABO3型薄膜)制备中的主要应用及其优势,并对该技术在先进无机材料制备领域的应用前景进行了展望。  相似文献   

2.
LiNiO2被认为是当前最具吸引力的锂离子电池正极材料之一。概述了LiNiO2正极材料的制备技术,重点介绍了软溶液工艺的几种技术(包括水热技术、电化学技术和水热电化学技术)在制备LiNiO2薄膜中的应用和特点,并对LiNiO2正极材料制备技术的发展趋势进行了展望。  相似文献   

3.
何见超  赖欣  史芳  高道江  毕剑  张姝  徐成刚 《材料导报》2005,19(Z2):256-257,264
LiNiO2被认为是当前最具吸引力的锂离子电池正极材料之一.概述了LiNiO2正极材料的制备技术,重点介绍了软溶液工艺的几种技术(包括水热技术、电化学技术和水热电化学技术)在制备LiNiO2薄膜中的应用和特点,并对LiNiO2正极材料制备技术的发展趋势进行了展望.  相似文献   

4.
材料合成新技术──自蔓延高温合成   总被引:3,自引:0,他引:3  
自蔓延高温合成(SHS)是目前被广泛开发用于工业陶瓷和其它先进材料制备的一种独特的先进工艺技术。本文对生产高科技材料的自蔓延高温合成技术方法进行了介绍,并分析了该工艺的特点及其理论基础,同时还讨论了影响材料合成的因素。  相似文献   

5.
水热电泳沉积技术结合了水热法和电泳沉积法的优点,是近几年发展起来的制备功能涂层的重要工艺技术,有着良好的应用前景.详细介绍了水热电泳沉积技术的原理、影响沉积工艺的因素,概述了水热电泳沉积动力学并总结了该技术在制备功能陶瓷涂层上的应用.指出水热电泳沉积技术是很有发展前景的涂层制备工艺;在进行水热电泳沉积应用研究的同时,应进一步开展其理论研究,探索水热电泳沉积技术的原理,建立合理的具有指导意义的理论及数学模型.  相似文献   

6.
综述了水热反应机理、影响水热反应的主要因素及水热法制备无机粉体材料的研究新进展,并对水热法在无机粉体材料制备中的发展前景进行了展望。  相似文献   

7.
水热法在无机粉体材料制备中的研究进展   总被引:2,自引:0,他引:2  
综述了水热反应机理、影响水热反应的主要因素及水热法制备无机粉体材料的研究新进展,并对水热法在无机粉体材料制备中的发展前景进行了展望.  相似文献   

8.
放电等离子烧结(SPS)技术   总被引:17,自引:4,他引:13  
放电等离子烧结(SPS)技术是一种新型的材料制备技术。介绍了SPS技术的发展概况、原理、特点及在材料制备领域的应用。最后,对SPS主发展前景进行了展望。  相似文献   

9.
郝晓刚  马旭莉 《功能材料》2007,38(A07):2721-2726
电化学控制离子分离(electrochemically controlled ion separation,ECIS)是一种环境友好的新型膜分离技术,通过电化学方法调节附着在导电基体上的离子交换膜的氧化还原电位来控制离子的置入与释放,从而使溶液中的金属离子得到分离并使膜得到再生。铁氰化镍(NiHCF)是一种结构类似分子筛的无机配位化合物,由于其对碱金属离子的选择性(Cs^+〉Rb^+〉K^+〉Na^+〉Li^+)不同可用于分离混合溶液中的碱金属离子,成为电控离子分离膜的首选材料。就ECIS过程机理、NiHCF薄膜的制备-结构-性能关系进行了总结并提出了一些新的研究方向。  相似文献   

10.
本文主要介绍并分析了电结晶法制备羟基磷灰石(HA)涂层的工艺过程,发现电结晶法实际上是电化学沉积和水热合成法在工艺上的巧妙组合。  相似文献   

11.
本文综述了LiCoO2固体和LiCoO2薄膜正极材料的制备技术及其进展,介绍了软溶液制备技术(SSP)用于Li-CoO2正极材料制备的优势及动态,展望了今后LiCoO2正极材料制备技术的方向.  相似文献   

12.
A process called ‘soft solution processing’ has been introduced to fabricate advanced solid state materials in an economical, environmental friendly, and energy and material efficient way. A concise discussion of how to improve the synthetic conditions and how to extend the applied system is given. The successful examples show that soft solution processing is capable of preparing advanced materials with planned properties through the easy control of reaction conditions in a suitable aqueous solution in a single synthetic step without huge energy consumption for sintering or melting and without any sophisticated equipment.  相似文献   

13.
Hydrothermal processing of materials: past,present and future   总被引:1,自引:0,他引:1  
The hydrothermal technique provides an excellent possibility for processing of advanced materials whether it is bulk single crystals, or fine particles, or nanoparticles. The advantages of hydrothermal technology have been discussed in comparison with the conventional methods of materials processing. The current trends in hydrothermal materials processing has been described in relation to the concept of soft solution processing, as a single-step low energy consuming fabrication technique. Also some recent developments in multi-energy processing of materials such as microwave-hydrothermal, mechanochemical-hydrothermal, electrochemical-hydrothermal, sonar-hydrothermal, etc. have been discussed. An overview of the past, present and future perspective of hydrothermal technology as a tool to fabricate advanced materials has been given with appropriate examples.  相似文献   

14.
This work focused on the preparation of poly (vinyl alcohol) (PVA)/inorganic composites. Perlite and organically modified montmorillonite (OMMT) were used as the inorganic compounds. (PVA)/inorganic nanocomposite films were prepared by solvent solution method. The morphology, dynamic mechanical property, and the photochemical stability of these films were studied. The reaction pathway between these OMMT and PVA was suggested that the hydrogen bonding and hydrophobic interactions contributed to the preparation. The obtained new materials have different thermal, mechanical, and photochemical stability from other single components.  相似文献   

15.
Achieving nanostructured or hierarchical hybrid architectures involves cross‐cutting synthetic strategies where all facettes of chemistry (organic, polymers, solid‐state, physical, materials chemistries, biochemistry, etc…?), soft matter and ingenious processing are synergistically coupled. These cross‐cutting approaches are in the vein of bio‐inspired synthesis strategies where the integration of different areas of expertise allows the development of complex systems of various shapes with perfect mastery at different size scales, composition, porosity, functionality, and morphology. These strategies coined “Integrative Chemistry” open a land of opportunities to create advanced hybrid materials with organic‐inorganic or bio‐inorganic character. These hybrid materials represent not only a new field of basic research where creative chemists can express themselves, but also, via their remarkable new properties and multifunctional nature, hybrids are allowing the emergence of innovative industrial applications in extremely diverse fields.  相似文献   

16.
The major advances in the field of the designed construction of hierarchically structured porous inorganic or hybrid materials wherein multiscale texturation is obtained via the combination of aerosol or spray processing with sol-gel chemistry, self-assembly and multiple templating are the topic of this review. The available materials span a very large set of structures and chemical compositions (silicates, aluminates, transition metal oxides, nanocomposites including metallic or chalcogenides nanoparticles, hybrid organic-inorganic, biohybrids). The resulting materials are manifested as powders or smart coatings via aerosol-directed writing combine the intrinsic physical and chemical properties of the inorganic or hybrid matrices with defined multiscale porous networks having a tunable pore size and connectivity, high surface area and accessibility. Indeed the combination of soft chemical routes and spray processing provides "a wind of change" in the field of "advanced materials". These strategies give birth to a promising family of innovative materials with many actual and future potential applications in various domains such as catalysis, sensing, photonic and microelectronic devices, nano-ionics and energy, functional coatings, biomaterials, multifunctional therapeutic carriers, and microfluidics, among others.  相似文献   

17.
聚合物/无机物纳米复合材料研究现状   总被引:4,自引:0,他引:4  
纳米材料是继单组分材料,复合材料和梯度材料之后的第四代材料,聚合物/无机物纳米复合材料的研究已成为当今高分子化学与物理,无机化学和材料化学等诸多交叉学科的前沿领域,聚合物和无机物在纳米及分子水平上的复合,将使各自的优势得到最充分的体现,简要概述了聚合物/无机物纳米复合材料的制备方法,结构与性能及其应用。  相似文献   

18.
空心球壳材料的制备研究进展   总被引:1,自引:0,他引:1  
空心球壳材料的制备通常采用硬模板法或软模板法,评述了它们在制备空心球壳材料时的机理和优缺点,并综述了国内外应用模板法制备各种空心球壳材料(无机材料、金属、高分子材料以及无机-有机复合材料)的研究进展.  相似文献   

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