High Temperature Calorimeter for the Study of Active Site Distribution on Carbon Catalyst Supports

用于研究碳催化剂载体活性位点分布的高温量热仪

• 批准号: 9213036
• 负责人: Jonathan Phillips
• 金额: $ 3万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9213036&HistoricalAwards=false
• 关键词: Temperature; Calorimeter; Study; Active; Site

A high-temperature differential microcalorimeter for the study of gas adsorption on high-surface-area materials is designed and constructed. The system is designed to operate at temperature up to 625> K, using special materials for this propose. For operation below 450> K, the pressure-gauge heads will be inside the controlled-temperature region, as with present near-ambient designs; for operation in the "high- temperature" region (450-625> K), the system can be reconfigured to place the pressure gauges outside the high- temperature zone. The system will be used in combination with catalytic tests to correlate carbon surface chemistry with the catalytic behavior of carbon-supported metal catalysts, including iron-containing bimetallics. It will also be used in studies of diamond powder and of nanoparticles of silicon nitride.

高温差示微量热计的研究 气体吸附在高表面积材料的设计 和建造。 该系统的设计运行在 温度高达625> K，使用特殊材料， 求婚 对于450 K以下的操作，压力表头 将在受控温度区域内， 目前的近环境设计;在“高- 在“温度”区域（450-625> K），系统可以是 重新配置，将压力计放置在高- 温度区。 该系统将与催化测试结合使用， 将碳表面化学与催化行为相关联 碳载金属催化剂，包括含铁的 双金属 它也将用于钻石的研究 粉末和氮化硅纳米颗粒。