烟草花叶病毒
材料科学
分散性
铂金
化学工程
纳米技术
多孔性
催化作用
病毒
复合材料
有机化学
高分子化学
化学
生物
工程类
病毒学
作者
Jiawang Guo,Yuan Lin,Libo Zhang
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2019-10-08
卷期号:31 (1): 015502-015502
被引量:4
标识
DOI:10.1088/1361-6528/ab4448
摘要
We developed a facile method to fabricate platinum (Pt) porous nanotubes coated with interconnected Pt dendrites using the tobacco mosaic virus (TMV) as a template. The surface-exposed arginine residues of the TMV induced the selective deposition of Pt seeds on the TMV outside surface, and poly(sodium-p-styrenesulfonate) (PSS) was chosen to stabilize the dispersity of TMV coated with Pt seeds (TMV/SPt). The limited space between the Pt seeds and their uniform distribution on the TMV exterior confined the growth of Pt dendrites, resulting in continuous dendritic platinum nanotubes (TMV/DPtNT). The synergistic effects of porous dendrites and anisotropic structures of the TMV/DPtNTs provided an increase in the active sites, the enhancement of transport efficiency and long-distance electron transfer, which greatly improved the catalytic activity. We also demonstrated that such nanotubes could be used in the detection of H2O2 with good sensitivity.
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