Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore - 560012, India.
J Chem Phys. 2013 Aug 21;139(7):074706. doi: 10.1063/1.4818166.
Ion implantation experiments were carried out on amorphous (30 K) and crystalline (80 K) solid CO2 using both reactive (D(+), H(+)) and non-reactive (He(+)) ions, simulating different irradiation environments on satellite and dust grain surfaces. Such ion irradiation synthesized several new species in the ice including ozone (O3), carbon trioxide (CO3), and carbon monoxide (CO) the main dissociation product of carbon dioxide. The yield of these products was found to be strongly dependent upon the ion used for irradiation and the sample temperature. Ion implantation changes the chemical composition of the ice with recorded infrared spectra clearly showing the coexistence of D3h and C2v isomers of CO3, for the first time, in ion irradiated CO2 ice.
采用反应性（D(+), H(+)）和非反应性（He(+)）离子对非晶（30 K）和晶体（80 K）固态 CO2 进行了离子注入实验，模拟了卫星和尘埃颗粒表面的不同辐照环境。这种离子辐照在冰中合成了几种新物质，包括臭氧（O3）、碳酸三基（CO3）和一氧化碳（CO），这是二氧化碳的主要分解产物。这些产物的产率强烈依赖于用于辐照的离子和样品温度。离子注入会改变冰的化学成分，记录的红外光谱清楚地表明，在离子辐照的 CO2 冰中，首次同时存在 CO3 的 D3h 和 C2v 异构体。
