化学
高分辨率透射电子显微镜
透射电子显微镜
扩展X射线吸收精细结构
同步辐射
催化作用
结晶学
氢解
钯
X射线光电子能谱
同步加速器
光电发射光谱学
吸收光谱法
纳米技术
化学工程
材料科学
光学
有机化学
物理
工程类
作者
Jingjie Ge,Dongsheng He,Wenxing Chen,Huanxin Ju,Han Zhang,Tingting Chao,Xiaoqian Wang,Rui You,Yue Lin,Yu Wang,Junfa Zhu,Hai Li,Bin Xiao,Weixin Huang,Yuen Wu,Xun Hong,Yadong Li
摘要
We report a one-pot synthesis of atomically dispersed Ru on ultrathin Pd nanoribbons. By using synchrotron radiation photoemission spectroscopy (SRPES) and extended X-ray absorption fine structure (EXAFS) measurements in combination with aberration corrected high-resolution transmission electron microscopy (HRTEM), we show that atomically dispersed Ru with content up to 5.9% was on the surface of the ultrathin nanoribbon. Furthermore, the ultrathin Pd/Ru nanoribbons could remarkably prohibit the hydrogenolysis in chemoselective hydrogenation of C═C bonds, leading to an excellent catalytic selectivity compared with commercial Pd/C and Ru/C.
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