Nanoscale Microstructural Design of Hydrazide Sol-Gel Derived Titanium Nitride Particles

Cts-0000563P.N.Kumta，Carnegie-Mellon University的目标是开发一种新的烷氧基肼溶胶-凝胶(HSG)工艺，以获得结构可控的纳米晶TiN，确定形成纳米晶氮化物的非晶态前体转变的机制，了解导致微结构高比表面积的成核和生长过程，并探索其在“超级电容器”中的潜在应用。这项工作包括一系列的光谱和结构研究、合成方案和反应路径。了解造成高比表面积的机制以及颗粒大小、形状和取向对电容特性的作用将是主要成果。该研究项目将与喷气推进实验室和Entek国际的研究小组合作进行。如果成功，该项目将对理解超级电容器的合成和操作、一组纳米晶体材料的微结构演变、获得先进材料的化学路线以及电化学产生影响。

AbstractCTS- 0000563P.N. Kumta, Carnegie-Mellon UniversityThe objectives is to develop a new alkoxy hydrazine sol-gel (HSG) process in order to obtain nanocrystalline TiN with controlled structure, identify the mechanisms that govern the transformation of the amorphous precursors forming nanocrystalline nitrides, understand the nucleation and growth processes contributing to the high surface area of the microstructure, and explore the potential application to "supercapacitors". The work includes a series of spectroscopic and structural investigations, synthesis protocols, and reaction pathways. Understanding the mechanisms contributing to the high surface area and the role of particle size, shape and orientation on the electrical capacity characteristics will be a main outcome. The research project will be carried out in collaboration with research groups at the Jet Propulsion Laboratories and Entek International. If successful, the project will have impact on understanding synthesis and operation of "supercapacitors", microstructural evolution of a group of nanocrystalline materials, chemical routes to advanced materials, and electrochemistry.