School of Material Science & Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
Nanoscale. 2013 Nov 21;5(22):11044-50. doi: 10.1039/c3nr03813k. Epub 2013 Sep 26.
Bimetallic ruthenium-copper nanoparticles embedded in the pore walls of mesoporous carbon were prepared via a template route and evaluated in terms of catalytic properties in D-glucose hydrogenation. The existence of bimetallic entities was supported by Ru L3-edge and Cu K-edge X-ray absorption results. The hydrogen spillover effect of the bimetallic catalyst on the hydrogenation reaction was evidenced by the results of both hydrogen and carbon monoxide chemisorptions. The bimetallic catalyst displayed a higher catalytic activity than the single-metal catalysts prepared using the same approach, namely ruthenium or copper nanoparticles embedded in the pore walls of mesoporous carbon. This improvement was due to the changes in the geometric and electronic structures of the bimetallic catalyst because of the presence of the second metal.
通过模板法制备了负载在介孔碳孔壁中的双金属钌-铜纳米粒子，并研究了其在 D-葡萄糖加氢反应中的催化性能。Ru L3 边和 Cu K 边 X 射线吸收结果表明存在双金属物种。双金属催化剂对加氢反应的氢溢流效应通过氢气和一氧化碳的化学吸附结果得到证实。与使用相同方法制备的单金属催化剂（即负载在介孔碳孔壁中的钌或铜纳米粒子）相比，双金属催化剂显示出更高的催化活性。这种提高归因于由于存在第二种金属，双金属催化剂的几何和电子结构发生了变化。
