摘要
在氟离子体系中,合成了磷酸锗铁铝分子筛GeFeAPO-5的纯相,吸附吡啶后的红外光谱表明GeFeAPO-5分子筛中存在Brnsted酸和Lewis酸中心;X射线衍射分析、晶胞参数测定、电子探针、红外光谱、穆斯堡尔谱、电子顺磁共振谱、固体高分辨魔角旋转核磁共振谱等结果表明,锗和铁进入了GeFeAPO-5分子筛骨架。
GeFeAPO-5 molecular sieve was synthesized in the system of fluoride ions. After adsorption of pyridine the IR spectra showed the presence of both Bronsted and Lewis acid sites. GeFeAPO-5 molecular sieve was identified by means of X-ray diffraction analysis, determination of the unit cell parameters, electron probe, infrared spectra, Mossbauer spectroscopy, electron paramagnetic resonance spectrum, high resolution magic-angle-spinning solid state 31P and 27A1 nuclear magnetic resonance. The results showed Fe and Ge entered into the GeFeAPO-5 framework.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第11期1171-1174,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
分子筛
合成
鉴定
磷酸锗铁铝
Molecular sieve, Aluminophosphate, Germanium, Iron
