摘要
用浸渍法制备 KNO3 /Al2 O3 样品。所得样品于 973 K下焙烧并抽空 2 h便制得负载型固体碱 K2 O/γ- Al2 O3 。拉曼光谱显示 973 K抽空的样品 KNO3 已完全分解成 K2 O。而 γ- Al2 O3 载体的存在可增强 KNO3 的分解 ,表明了 KNO3 与 Al2 O3
The KNO_3/γ-Al_2O_3 sample (loading capacity: 6.3 mmol/g) was prepared by an incipient wetness impregnation method. The supported solid base K_2O/γ-Al_2O_3 was obtained from the KNO_3/γ-Al_2O_3 sample upon evacuation at 973 K. Raman spectroscopic studies of NO -__ x indicated that the potassium nitrate was completely decomposed into potassium oxide when evacuating at 973 K. The existence of γ-Al_2O_3 support apparently promotes the decomposition of potassium nitrate, indicating that the interaction between KNO_3 and Al_2O_3 is rather strong.
出处
《化学世界》
CAS
CSCD
北大核心
2002年第12期623-624,649,共3页
Chemical World
基金
湖南省教育厅科研资助项目 ( 0 0 C2 42 )
湖南省自然科学基金资助项目 ( 98JJY2 0 5 7)
