• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Influence of Ni on enhanced catalytic activity of Cu/Co3O4 towards reduction of nitroaromatic compounds: studies on the reduction kinetics
【24h】

Influence of Ni on enhanced catalytic activity of Cu/Co3O4 towards reduction of nitroaromatic compounds: studies on the reduction kinetics

机译：Ni对Cu / CO3O4增强催化活性对硝基芳族化合物还原的影响：减少动力学研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, we have investigated the influence of Ni on Cu/Co _(3) O _(4) towards catalytic reduction of nitroaromatic compounds. For this purpose, Cu, Ni and CuNi alloy nanoparticles supported over Co _(3) O _(4) are synthesized by a surfactant aided co-reduction method. The Co _(3) O _(4) support is synthesized via a template-free hydrothermal route. The Co _(3) O _(4) support and CuNi/Co _(3) O _(4) nanocatalysts are characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), UV-visible spectroscopy and Brunauer–Emmett–Teller (BET) surface area techniques. The Co _(3) O _(4) supported CuNi alloy nanoparticles exhibit superior catalytic performance for 4-nitrophenol (4-NP) reduction in comparison to the monometallic catalysts due to synergistic effects. Furthermore, the supported bimetallic nanoparticles demonstrate high recycling ability towards the reduction of 4-NP up to six cycles. To demonstrate the effectiveness of the highly active CuNi/Co _(3) O _(4) nanocatalyst towards reduction of various nitroaromatics, the catalyst is also used for reduction of 4-nitroaniline, 4-nitrotoluene, 3-nitroaniline, and 2-nitroaniline. The presence of the CuNi/Co _(3) O _(4) interfaces in the nanocatalyst is believed to be responsible for the high catalytic activity.
机译：在这项工作中，我们研究了Ni对Cu / Co _（3）O o _（4）对硝基芳族化合物的催化还原的影响。为此目的，通过表面活性剂辅助共减少方法合成支持的Cu，Ni和CUNI合金纳米颗粒，得到CO _（3）o-（4）。通过无模板的水热路线合成CO _（3）O _（4）载体。 CO _（3）O _（4）支持和CUNI / CO_（3）O _（4）纳米催化剂的特征在于傅里叶变换红外光谱（FTIR），拉曼光谱，透射电子显微镜（TEM），能量分散X. -REART光谱学（EDS），X射线衍射（XRD），UV可见光谱和Brunauer-Emmett-Teller（Bet）表面积技术。支持的CUNI合金纳米粒子的CO _（3）O _（4）表现出优异的4-硝基苯酚（4-NP）的催化性能，与单金属催化剂相比，由于协同效应，与单金属催化剂相比。此外，所支持的双金属纳米颗粒表明，朝向降低4-NP的高回收能力最多六个循环。为了证明高活性CUNI / CO _（3）O _（4）纳米催化剂对各种硝基甲酰甲酰基的有效性，催化剂还用于还原4-硝基苯胺，4-硝基甲苯，3-硝基苯胺和2-硝基苯胺。据信纳米催化剂中的CUNI / CO _（3）O _（4）型接口是负责高催化活性的原因。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号