钌
催化作用
硝酸
纳米颗粒
活性炭
吸附
色散(光学)
化学
傅里叶变换红外光谱
相(物质)
粒径
碳纤维
核化学
材料科学
有机化学
化学工程
纳米技术
复合数
物理化学
物理
工程类
光学
复合材料
作者
Yangqiang Huang,Yao Ma,Youwei Cheng,Lijun Wang,Xi Li
标识
DOI:10.1016/j.catcom.2015.09.003
摘要
A plenty of uniform and spherical ruthenium nanoparticles were prepared by the adsorption–bioreduction method using the Cacumen Platycladi extract and supported on the activated carbon which was modified with nitric acid. The catalytic performance of as-prepared Ru/AC–HNO3 catalysts was investigated in the liquid phase hydrogenation of 2,2,4,4-tetramethylcyclobutane-1,3-dione to 2,2,4,4-tetramethylcyclobutane-1,3-diol. Different characterization techniques of BET, XRD, TEM, and FTIR were applied to understand the origin of the catalytic activity. With a comprehensive analysis of the experimental results, we can draw a conclusion that the higher dispersion of ruthenium nanoparticles and the smaller particle size give rise to the results which indicate a remarkable enhancement of the catalytic performance in comparison with the non-modified AC samples.
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