Novel Microwave - Polyol Process for Nanophase Metals

新型微波 - 纳米相金属多元醇工艺

• 批准号: 0096527
• 负责人: Sridhar Komarneni
• 金额: $ 28.26万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-01 至 2005-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0096527&HistoricalAwards=false
• 关键词: Novel; Microwave; Polyol; Process; Nanophase

0096527KomarneniThis research examines the phenomenon of microwave-assisted reactions in the liquid state to synthesize nanophase metal powders, such as Cu, Ni, Pt, Pd, Au, and Ag. This novel microwave-polyol process reduces metal hydroxides or other salts with ethylene glycol, which serves as a solvent as well as a reducing agent. Preliminary results show that nanophase metal powders can be produced rapidly by microwave catalysis. The synthesis of nanophase metal powders associated kinetics are investigated for this technique, and the results are compared to the conventional refluxing process in ethylene glycol at 195 degrees C. Heterogeneous and homogeneous nuclei are added during microwave-polypol processing to better understand the nucleation and growth steps.%%%Monodisperse metal powders are expected to be valuable in conductive inks and in pastes that could be employed for a variety of applications such as electronic thick film technology.***

0096527 Komarnini本研究考察了在液态下微波辅助反应合成纳米相金属粉末（如Cu、Ni、Pt、Pd、Au和Ag）的现象。 这种新颖的微波-多元醇工艺用乙二醇还原金属氢氧化物或其他盐，乙二醇既作为溶剂又作为还原剂。 初步结果表明，微波催化法可以快速制备纳米金属粉末。 研究了该技术合成纳米金属粉末的相关动力学，并将结果与195 ℃下乙二醇中的常规煅烧过程进行了比较。 在微波聚合过程中加入异质和同质核，以更好地理解成核和生长步骤。单分散金属粉末在导电油墨和浆料中具有很高的应用价值，可用于电子厚膜技术等各种应用。