Nanoporous CuO ribbons modified by Au nanoparticles through chemical dealloying and calcination for CO oxidation
Nanoporous CuO ribbons modified by Au nanoparticles through chemical dealloying and calcination for CO oxidation
复制标题
通过化学脱合金和煅烧 CO 氧化，Au 纳米粒子修饰的纳米多孔 CuO 带
DOI：
10.1016/j.micromeso.2015.12.028
复制
发表时间：
2016-05
影响因子：
5.2
通讯作者：
Xiaoping Song
中科院分区：
文献类型：
--
作者：
Zhang Xiaolong;Sun Zhanbo;Guijing Li;Sen Yang;Xiaoping Song
The ultrafine nanoporous CuO ribbons modified by Au nanoparticles are prepared through simply dealloying the melt-spun Al-Cu-Au alloys combined the subsequent calcination in air. A nanoporous Cu (Au) solid solution ribbon is constructed as the removal of Al from the precursory alloys. After calcined at high temperature, Cu is oxidized to CuO with a porous structure and the in situ generated Au nano particles embed in ligaments, resulting in the formation of nanoporous CuO/Au composites with a pore size about 25 nm. The experiment results indicate that the composites have large surface area, high activity and stability. And the CO conversion rate can reach 100.0% just at 180 degrees C. According to XPS (X-ray photoelectron spectroscopy) results, the superior performance at low temperature is ascribed to the presence of Au+1 species and the interfacial interaction between Au nanoparticles and CuO ligaments. The present work can contribute to the development of the porous catalytic materials with high performances and low cost. (C) 2015 Elsevier Inc. All rights reserved.
登录
查看更多内容
影响因子：
5.3
作者：
J. Bauer;T. Toops;Yatsandra Oyola;J. Parks;S. Dai;S. Overbury
通讯作者：
J. Bauer;T. Toops;Yatsandra Oyola;J. Parks;S. Dai;S. Overbury
影响因子：
22.1
作者：
S. K. Kulshreshtha;M. Gadgil
通讯作者：
S. K. Kulshreshtha;M. Gadgil
影响因子：
5.2
作者：
Y. Jiao;Feifei Wang;Xiaoming Ma;Qinghu Tang;Kui Wang;Yuming Guo;Lin Yang
通讯作者：
Y. Jiao;Feifei Wang;Xiaoming Ma;Qinghu Tang;Kui Wang;Yuming Guo;Lin Yang
影响因子：
--
作者：
Hsien-Chang Yang;F. Chang;L. S. Roselin
通讯作者：
Hsien-Chang Yang;F. Chang;L. S. Roselin
影响因子：
15
作者：
Liu, Xiaoyan;Liu, Ming-Han;Lin, Tien-Sung
通讯作者：
Lin, Tien-Sung