One-step melamine-assisted synthesis of graphene-supported AuPt@Au nanocrystals for enhanced catalytic reduction of p-nitrophenol

被引：30
作者：
Liu, Qi [1 ]
Xu, Yan-Ru [1 ]
Wang, Ai-Jun [1 ,2 ]
Feng, Jiu-Ju [1 ,2 ]
机构：
[1] Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Peoples R China
[2] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 116期
基金：
中国国家自然科学基金;
关键词：
CORE-SHELL NANOCRYSTALS; WATER-BASED SYNTHESIS; ONE-POT SYNTHESIS; OXYGEN REDUCTION; FACILE SYNTHESIS; ELECTROCATALYTIC ACTIVITY; BIMETALLIC NANOCATALYSTS; ALLOY NANOPARTICLES; CARBON NANOTUBES; SHAPE CONTROL;
D O I：
10.1039/c5ra21645a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, monodispersed core-shell AuPt@Au nanocrystals supported on reduced graphene oxide (AuPt@Au NCs/rGO) were fabricated by a one-step wet-chemical approach using melamine as a structure-director and stabilizing agent. Transmission electron microscopy (TEM), high-angle annular dark-field scanning TEM (HAADF-STEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were employed to examine their structure and morphology. The as-synthesized nanocomposites displayed better catalytic activity for p-nitrophenol reduction and improved reusability as compared with monometallic Au/rGO, Pt/rGO and commercial Pt/C catalysts.
引用
收藏
页码：96028 / 96033
页数：6
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