Trapping Planetary Noble Gases During the Fischer-Tropsch-Type Synthesis of Organic Materials

Nuth, Joseph A. ; Meshik, A. ; Johnson, N. M.

PID  :  NTRS Document ID: 20100015525

学科分类：天体物理学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

When hydrogen, nitrogen and CO arc exposed to amorphous iron silicate surfaces at temperatures between 500 - 900K, a carbonaceous coating forms via Fischer-Tropsch type reactions!, Under normal circumstances such a catalytic coating would impede or stop further reaction. However, we find that this coating is a better catalyst than the amorphous iron silicates that initiate these rcactions:u . The formation of a self-perpetuating catalytic coating on grain surfaces could explain the rich deposits of macromolecular carbon found in primitive meteorites and would imply that protostellar nebulae should be rich in organic materiaL Many more experiments are needed to understand this chemical system and its application to protostellar nebulae.