1-Aminoanthraquinone bridged small Pt nanoparticles on carbon nanotubes as efficient electrocatalysts
1-Aminoanthraquinone bridged small Pt nanoparticles on carbon nanotubes as efficient electrocatalysts
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1-氨基蒽醌桥接碳纳米管上的小 Pt 纳米颗粒作为高效电催化剂
DOI：
10.1016/j.apsusc.2015.08.238
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发表时间：
2015-11
影响因子：
6.7
通讯作者：
Song Wenbo
中科院分区：
文献类型：
--
作者：
Feng Xun;Huang Hao;Du Cuicui;Wang Xiaolu;Wang Rui;Song Wenbo
以1-氨基蒽醌（AAQ）为结合剂，采用微波辅助法在多壁碳纳米管（MWCNTs）表面制备了高度分散的纳米Pt颗粒（Pt NPs）。作为氧化酸改性过程的替代，这种非共价AAQ官能化过程在室温下进行，简化了实验操作，同时去除了腐蚀性酸。拉曼光谱分析表明，AAQ改性保留了MWCNTs的固有特性，而不破坏其表面结构，不像氧化酸处理。扫描电镜、透射电镜和循环伏安测试结果表明，Pt-AAQ-MWCNTs在以下几个方面上级原生MWCNTs：（1）粒径小、分散性好;（2）电化学活性表面积大;（3）对H2 O2还原具有较高的电催化活性。结果表明，Pt-AAQ-MWCNTs是一种很有前途的电化学材料，可用于化学/生物传感器的构建。
Smaller nanosized Pt nanoparticles (Pt NPs) highly dispersed on the surface of multi-walled carbon nanotubes (MWCNTs) were prepared via a microwave-assisted approach by using 1-Aminoanthraquinone (AAQ) as the binding agent. As an alternative to the oxidative acid modification process, this noncovalent AAQ functionalization procedure was performed at room temperature, simplifying the experimental operation and getting rid of the corrosive acid at meanwhile. Raman spectroscopic analysis revealed that the AAQ modification preserved the intrinsic properties of MWCNTs without damaging their surface structure, unlike the oxidative acid treatment. Scanning electron microscopy, transmission electron microscopy and cyclic voltammetric measurements manifested that Pt-AAQ-MWCNTs was superior to those of pristine-MWCNTs in the following respects: (1) a smaller size and higher dispersion; (2) a larger electrochemical activity surface; (3) a higher electrocatalytic activity towards reduction H2O2. It was concluded that the Pt-AAQ-MWCNTs would be a promising candidate as an electrochemical material in construction of chemical/biosensor.
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