物理化学学报2017，Vol.33Issue(6)：1230-1235,6.DOI:10.3866/PKU.WHXB201703311
高活性、可循环的Pt-Cu@3D石墨烯复合催化剂的制备和催化性能
Three-Dimensional Graphene-Based Pt-Cu Nanoparticles-Containing Composite as Highly Active and Recyclable Catalyst
摘要
Abstract
A composite hydrogel consisting of well-dispersed Pt-Cu nanoparticles (NPs) supported on three-dimensional (3D) graphene (Pt-Cu@3DG) was successfully prepared by mild chemical reduction.The 3D interconnected macroporous structure of the graphene framework not only possesses large specific surface area that allows high metal loadings,but also facilitates mass transfer during the catalytic reaction.The Pt-Cu bimetallic alloy NPs show good catalytic activity compared with Pt NPs and reduce the content of Pt NPs used,thereby lowering costs.The morphology and composition of the Pt-Cu@3DG composite were investigated by scanning electron microscopy (SEM),transmission electron microscopy (TEM),X-ray photoelectron spectroscopy (XPS),X-ray diffraction (XRD),and energy-dispersive X-ray spectroscopy (EDX).The catalysis studies indicate that the resulting composites can be used as an efficient,inexpensive,recyclable,and stable catalyst for the reduction of 4-nitrophenol to 4-aminophenol under mild conditions.关键词
三维石墨烯/Pt-Cu纳米颗粒/催化反应/孔结构/复合材料Key words
Three dimensional graphene/Pt-Cu nanoparticle/Catalytic reaction/Pore structure/Composite分类
化学化工引用本文复制引用
王美淞,邹培培,黄艳丽,王媛媛,戴立益..高活性、可循环的Pt-Cu@3D石墨烯复合催化剂的制备和催化性能[J].物理化学学报,2017,33(6):1230-1235,6.基金项目
The project was supported by the Key Project of Shanghai Science and Technology Committee (14231200300) and Shanghai Key Laboratory of Green Chemistry and Chemical Processes.上海市重点工程科学和技术委员会(14231200300)及上海市绿色化学与化工过程绿色化重点实验室 （14231200300）
