Engineering Research Equipment: Microcalorimetric and Infrared Spectroscopic System

工程研究设备： 微量热及红外光谱系统

• 批准号: 9310565
• 负责人: Harold Kung
• 金额: $ 3.6万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-01 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9310565&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Microcalorimetric; Infrared

An instrument is being assembled that consists of a custom-made calorimeter with a response time of less than thirty seconds (compared with five minutes or so for commercial microcalorimeters) and capability for simultaneous investigation of the sample withattenuated total reflectance infrared spectroscopy. The rapidresponse time will permit determination of the heat of a process such as adsorption before subsequent slower processes obscure the measurement, while simultaneous infrared spectroscopy allows identification of the site of the process in cases where more than one possibility exists. Among systems to be studied with this new technique are nitric oxide on metal oxides or on metal zeolites and pyridine or ammonia on zeolites.

正在组装一种由定制的 响应时间小于30秒的热量计 （与商业广告相比， 微量热计）和同时研究的能力 衰减全反射红外光谱 谱 快速反应时间将允许确定 一个过程的热量，例如在随后的吸附之前 较慢的过程使测量变得模糊，而同时 红外光谱允许识别的网站， 在存在不止一种可能性的情况下进行。 之间 用这种新技术研究的系统是一氧化氮 在金属氧化物或金属沸石上和在吡啶或氨上 沸石