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Acta Physico-Chimica Sinca  2017, Vol. 33 Issue (6): 1230-1235    DOI: 10.3866/PKU.WHXB201703311
ARTICLE     
Three-Dimensional Graphene-Based Pt-Cu Nanoparticles-Containing Composite as Highly Active and Recyclable Catalyst
Mei-Song WANG,Pei-Pei ZOU,Yan-Li HUANG,Yuan-Yuan WANG*(),Li-Yi DAI
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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.



Key wordsThree dimensional graphene      Pt-Cu nanoparticle      Catalytic reaction      Pore structure      Composite     
Received: 12 December 2016      Published: 31 March 2017
MSC2000:  O643  
Fund:  The project was supported by the Key Project of Shanghai Science and Technology Committee(14231200300);Shanghai Key Laboratory of GreenChemistry and Chemical Processes
Corresponding Authors: Yuan-Yuan WANG     E-mail: hongchenguo@163.com
Cite this article:

Mei-Song WANG,Pei-Pei ZOU,Yan-Li HUANG,Yuan-Yuan WANG,Li-Yi DAI. Three-Dimensional Graphene-Based Pt-Cu Nanoparticles-Containing Composite as Highly Active and Recyclable Catalyst. Acta Physico-Chimica Sinca, 2017, 33(6): 1230-1235.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB201703311     OR     http://www.whxb.pku.edu.cn/Y2017/V33/I6/1230

Loading of Pt/% Utilization of Pt/% Conversion/%
00.042.0
180.084.7
292.464.2
3100.098.6
481.388.8
5100.081.1
626.076.4
736.776.0
 
 
 
 
 
 
 
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