Ru nanoparticles confined in carbon nanotubes: supercritical CO2 assisted preparation and improved catalytic performances in hydrogenation of D-glucose
Ru nanoparticles confined in carbon nanotubes: supercritical CO2 assisted preparation and improved catalytic performances in hydrogenation of D-glucose
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DOI：
10.1039/c3ra45509b
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发表时间：
2014-01
期刊：
影响因子：
3.9
通讯作者：
Xu Sankui;Peng Zhang;Hongbian Li;Huijuan Wei;Limin Li;Baojun Li;Xiangyu Wang
中科院分区：
文献类型：
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作者：
Xu Sankui;Peng Zhang;Hongbian Li;Huijuan Wei;Limin Li;Baojun Li;Xiangyu Wang
无机纳米粒子（NPs）限制在碳纳米管（MWCNTs）将提供显着改善的性能相比，他们的对应物负载在MWCNTs的外壁。本文采用超临界CO2（sc-CO2）作为浸渍介质，将无机钌前驱体引入到MWCNTs的内孔中。进一步用H2还原后得到了多壁碳纳米管内空间受限的Ru-MWCNTs纳米复合材料。Ru-MWCNTs在D-葡萄糖加氢反应中表现出优异的催化性能。制备的Ru催化剂的活性和稳定性得到了很大的提高。这种sc-CO2辅助浸渍是一种有效且环境友好的方法，用于制备限制在MWCNTs中的其他金属NPs作为高级功能材料。
Inorganic nanoparticles (NPs) confined in carbon nanotubes (MWCNTs) will provide significantly improved performances compared to their counterparts supported on the outer walls of MWCNTs. In this paper, supercritical CO2 (sc-CO2) was used as an impregnation medium to assist the inorganic Ru precursor into the inner pores of MWCNTs. MWCNTs inner space confined Ru–MWCNTs nanocomposites were obtained after further reduction by H2. The Ru–MWCNTs show excellent catalytic performance in the hydrogenation of D-glucose. The activity and stability of the prepared Ru catalyst were much improved. This sc-CO2 assisted impregnation is an effective and environmental benign process to prepare other metal NPs confined in MWCNTs as advanced functional materials.