摘要
在本研究中制备了一系列Ｃｕ－Ｃｒ－Ｍｏ－ＲＥ／ＳｉＯ２和Ｃｕ－ＲＥ／ＳｉＯ２催化剂。研究结果表明：在Ｃｕ／ＳｉＯ２催化剂中，引进Ｃｒ、Ｍｏ和稀土氧化物后能显著延长催化剂寿命。这一结果并用ＸＰＳ光谱对催化剂表面及用ＴＧ对催化剂抗结焦性能进行了分析研究结论为：Ｃｕ－Ｃｒ－Ｍｏ－ＲＥ／ＳｉＯ２和Ｃｕ－ＲＥ／ＳｉＯ２催化剂的负荷比Ｃｕ／ＳｉＯ２催化剂显著提高。
A series of Cu-Cr-Mo-Re/SiO2 and Cu-RE/sio2 catalysts were prepared and reported in this paper. The lifetime behavior of nitrobenzene hydrogenation of the addiction of Cr. Mo and RE-oxide to a Cu/sio2 Catalysts was increased. The results were analyzed in terms of change of the surface species studied by XPS spectroscopes and the effect on the anticarbon deposit by TG. The loads of Cu-RE/sio2 and Cu-Cr-Mo-RE/sio2 were ob-viously increased than Cu/sio2.
出处
《江西教育学院学报》
1998年第3期27-29,67,共4页
Journal of Jiangxi Institute of Education
关键词
铬
钼
稀土氧化物
铜
二氧化硅
催化剂
Nitrobenzene hydrogenation Prepare Load Cr.Mo.RE-oxide Copper-on-silica catalyst
