Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NASA-CR-148761, JPL-TM-33-782 |
| 来源ID | NTRS_Document_ID: 19760023233 |
| Heterogeneous reaction of ozone with aluminum oxide | |
| Keyser, L. F. | |
| 英文摘要 | Rates and collision efficiencies for ozone decomposition on aluminum oxide surfaces were determined. Samples were characterized by BET surface area, X-ray diffraction, particle size, and chemical analysis. Collision efficiencies were found to be between 2 times 10 to the -10 power and 2 times 10 to the -9 power. This is many orders of magnitude below the value of 0.000001 to 0.00001 needed for appreciable long-term ozone loss in the stratosphere. An activation energy of 7.2 kcal/mole was found for the heterogeneous reaction between -40 C and 40 C. Effects of pore diffusion, outgassing and treatment of the aluminum oxide with several chemical species were also investigated. |
| 英文关键词 | ALUMINUM OXIDES CHEMICAL REACTIONS HETEROGENEITY OZONE PHYSICAL CHEMISTRY ACTIVATION ENERGY COLLISION RATES DECOMPOSITION SPACE SHUTTLES STRATOSPHERE |
| 出版年 | 1976 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19760023233 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258672 |
| 推荐引用方式 GB/T 7714 | Keyser, L. F.. Heterogeneous reaction of ozone with aluminum oxide,1976. |
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