Nano Ru catalysts supported on carbon nanotubes for cellobiose conversion to sugar alcohols: effects of CNT channel size
Nano Ru catalysts supported on carbon nanotubes for cellobiose conversion to sugar alcohols: effects of CNT channel size
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碳纳米管负载的纳米 Ru 催化剂用于将纤维二糖转化为糖醇：CNT 通道尺寸的影响
DOI：
10.1039/c5ra16718c
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发表时间：
2015-01-01
期刊：
影响因子：
3.9
通讯作者：
Borgna, Armando
中科院分区：
文献类型：
--
作者：
Ran, Maofei;Chu, Wei;Borgna, Armando
将钌（Ru）纳米粒子（NPs）负载在不同内径的碳纳米管（CNTs）内表面，研究了CNTs通道尺寸对纤维二糖转化率的影响。结果表明，Ru/CNTs-in催化剂的还原活性和催化活性随着碳通道尺寸的减小而增强，Ru/CNTs-in催化剂的催化活性明显高于Ru/CNTs-out催化剂.随着纳米管通道尺寸（内径）的减小，通道的约束效应逐渐增强。在CNT通道内封装Ru NPs提高了Ru的还原性并减少了催化位点的浸出。
Ruthenium (Ru) nanoparticles (NPs) were supported on the interior surface of carbon nanotubes (CNTs) with different inner diameters to study the effects of CNT channel size on the cellobiose conversion. It was found that the reducibility and catalytic activity of Ru/CNT-in sample was enhanced with the decrease of the carbon channel size and Ru/CNTs-in catalysts showed significantly higher catalytic activities than that of the Ru/CNTs-out sample. The confinement effect of the CNT channel was gradually enhanced with the decrease of the nanotube channel size (inner diameter). The encapsulation of Ru NPs inside the CNT channels improved the Ru reducibility and decreased the leaching of catalytic sites.