摘要
以Mossbauer谱为手段,研究了用于F-T合成的Fe/Zn催化剂的物相结构,并考察了组成及制备方法的影响,同时还对其还原、碳化行为进行了探讨.发现锌对铁的还原有抑制作用,它能够稳定二价铁不被进一步还原.研究还表明,我们所研制的Fe/Zn催化剂是一种高分散度的铁锌化合物,室温下具有超顺磁特性.
A Mossbauer spectroscopic study was performed on Fe/Zn catalysts used for Fischer-Tropsch synthesis. The study was focused on their phase structure, and the effects of composition and preparation method. Mean while, the reduction and carbonisation of the catalysts were investigated. Inhibition of zinc to the reduction of iron and stabilization of Fe (Ⅱ) by zinc were observed. This study also revealed that the catalysts have superparamagnetic character at normal temperature.
出处
《分子催化》
EI
CAS
CSCD
1993年第6期425-431,共7页
Journal of Molecular Catalysis(China)
基金
国家自然科学基金资助项目
关键词
催化剂
穆斯堡尔谱
还原
铁锌
Fe/Zn catalysts, Mossbauer spectra, Reduction, Carbonisation.
