期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 380, 期 -, 页码 61-69出版社
ELSEVIER
DOI: 10.1016/j.molcata.2013.09.011
关键词
Mn3O4-NiO-Ni/CNTs; Spontaneous redox; Structure defects; Benzyl alcohol; Catalytic oxidation
资金
- National Natural Science Foundation of China [21073087]
- Open Analysis Foundation of Nanjing University
Mn3O4-NiO-Ni/CNTs catalysts were synthesized via a facile spontaneous redox reaction at high temperature. The prepared catalysts were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), H-2-temperature programmed reduction (H-2-TPR), Raman spectroscopy, nitrogen adsorption-desorption isotherm and ICP-AES. The catalytic performance was evaluated by selective oxidation of benzyl alcohol in the presence of oxygen. Comparing with monocomponent Mn or Ni species loaded on CNTs, the bicomponent Mn and Ni species loaded on CNTs showed much better catalytic performance. It was found that the part of metallic Ni, which was formed by spontaneously on CNTs at high temperature, may help to improve the catalytic oxidation because it was favorable for the adsorption and activation of molecular oxygen. Comparison of different carbon supports and the influence of defect density of CNTs on the reaction had also been discussed. The proposed route of preparing efficient multi-component catalysts via spontaneous reduction of metal oxide promoted by high temperature provided a promising choice to the synthesis and application of carbon-based catalysts. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据