层状镨铈氢氧化物衍生纳米片负载金催化甘油氧化性能研究
Catalytic Properties of Glycerol Oxidation Catalyzed by Gold on Layered Praseodymium Cerium Hydroxide Derived Nanosheets
王聪莹 1王丽敏 1于静2
作者信息
- 1. 赤峰学院,内蒙古赤峰 024000
- 2. 内蒙古大学,内蒙古呼和浩特 010021
- 折叠
摘要
采用低温均相沉淀和冷冻干燥法合成了镨掺杂层状氢氧化铈纳米片(LPrxCe1-xH),以其为前体通过氨水沉积沉淀和热处理过程制备了LPrxCe1-xH衍生纳米片负载金催化剂(Au/LPrxCe1-xO).利用X射线衍射(XRD)、透射电子显微镜(TEM)、高分辨透射电镜(HRTEM)和H2程序升温还原技术(H2-TPR)对材料的结构、微观形貌、还原特性进行了表征,并考察了Au/LPrxCe1-xO催化剂在温和(90℃、1atm)条件下催化甘油选择性氧化反应的性能.
Abstract
Praseodymium doped layered cerium hydroxide nanosheets(LPrxCe1-xH)were synthesized by means of low temperature homogeneous precipitation and freeze-drying.The LPrxCe1-xH-derived nanosheet supported gold catalyst(Au/LPrxCe1-xO)was prepared by ammonia deposition,precipitation and heat treatment.X-ray diffraction(XRD),transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM)and H2 temperature reduction technique(H2-TPR)were used to characterize the structure,microstructure and reduction properties of the materials.The catalytic performance of Au/LPrxCe1-xO catalyst for the selective oxidation of glycerol at moderate temperature(90℃,1atm)was investigated.
关键词
层状氢氧化稀土/金属催化剂/甘油氧化/乳酸Key words
layered rare earth hydroxide/metal catalyst/glycerol oxidation/lactic acid引用本文复制引用
出版年
2024
NETL
NSTL
万方数据