Reactivity screening of silica
Reactivity screening of silica
复制标题
二氧化硅的反应性筛选
DOI：
10.1016/j.apsusc.2006.10.058
复制
发表时间：
2007
影响因子：
6.7
通讯作者：
U. Burghaus
中科院分区：
文献类型：
--
作者：
S. Funk;T. Nurkic;U. Burghaus
作为纳米结构最常用的载体之一的二氧化硅[SiO2/Si(100)]的化学活性筛选，收集了各种气体（如正壬烷、正己烷、正丁烷、异丁烷、乙烷、CO2、CO、O2和H/H2）的热解吸光谱数据。而链长大于3的烷烃则具有较大的结合能（Ed=50 ~ 70kj /mol），对其他探针分子的活性可以忽略不计（<24kJ/mol），直到吸附温度为95K。另外，用分子束散射法研究了正丁烷和异丁烷的吸附，并遵循标准前驱体介导的吸附动力学。
As a screening of the chemical activity of silica [SiO2/Si(100)], which is one of the most often used supports for nanostructures, thermal desorption spectroscopy data have been gathered for a variety of gases such as n-nonane, n-hexane, n-butane, iso-butane, ethane, CO2, CO, O2, and H/H2. Whereas, the alkanes with chain lengths larger than three adsorb with large binding energies (Ed=50–70kJ/mol), the activity towards the other probe molecules is negligible (<24kJ/mol) down to adsorption temperatures of 95K. The adsorption of n- and iso-butane has additionally been studied by molecular beam scattering and follows standard precursor mediated adsorption dynamics.