4.6 Article

PtAu alloy nanoparticles supported on thermally expanded graphene oxide as a catalyst for the selective oxidation of glycerol

期刊

RSC ADVANCES
卷 5, 期 47, 页码 37112-37118

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra04048e

关键词

-

资金

  1. Program for Key Science and Technology Innovation Team of Shaanxi Province [2012KCT-21]
  2. Program for Changjiang Scholars and Innovative Research Team in University of China [IRT_14R33]
  3. Fundamental Research Funds for the Central Universities [GK201501007]

向作者/读者索取更多资源

Thermally expanded graphene oxide (TEGO) supported PtAu alloy nanoparticles with various compositions was prepared, and then characterized using a combination of atomic absorption spectroscopy, powder X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. These catalysts were evaluated for the aerobic oxidation of glycerol in base-free aqueous solution. The results showed that PtAu(7 : 1)/TEGO exhibited the optimum activity for the conversion of glycerol among all the catalysts. Glycerol conversion of 60.4% and selectivities of 53.5% glyceric acid (GLYA), 25.7% glyceraldehydes (GLYDE), 11.6% dihydroxyacetone (DHA), and 3.8% glycolic acid (GLYCA) were obtained when reacting an aqueous solution of glycerol (0.3 M, 20 mL) at 60 degrees C under 0.3 MPa O-2 for 4 h in the presence of 0.023 g PtAu(7 : 1)/TEGO catalyst. Moreover, the reusability of PtAu(7 : 1)/TEGO was investigated, and a reaction mechanism for the oxidation of glycerol was proposed.

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。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据