Contiguous Petal-like Carbon Nanosheet Outgrowths from Graphite Fibers by Plasma CVD

Thiruvelu Bhuvana, Purdue University - Main Campus
Anurag Kumar, Purdue University - Main Campus
Aditya Sood, Purdue University - Main Campus
Roger H. Gerzeski, USAF, Res Lab, Thermal Sci & Mat Branch AFRL
JJ Jianjun, USAF, Res Lab, Thermal Sci & Mat Branch AFRL
Venkata Srinu Bhadram, Jawaharlal Nehru Centre for Advanced Scientific Research
Chandrabhas Narayana, Jawaharlal Nehru Centre for Advanced Scientific Research
Timothy Fisher, Purdue University - Main Campus

Date of this Version

3-2010

Citation

DOI: 10.1021/am9009154

This document has been peer-reviewed.

 

Abstract

We report a catalyst-free synthesis of cantilevered carbon nanosheet extensions, or petals, from graphite fibers by microwave plasma CVD. Results reveal that the petals grow from the fiber surface layers while preserving graphitic continuity from fiber to the petals. Subtraction of Raman signatures from pristine and decorated fibers reveals a convolution of two underlying peaks at 2687 and 2727 cm(-1) that are consistent with profiles of multilayer graphene flakes between 5 and 25 layers. Such structures offer the possibility of minimizing interfacial losses in transport applications, improved interactions with surrounding matrix materials in composites, and a route toward substrate independence for device applications.

Discipline(s)

Engineering | Nanoscience and Nanotechnology

 

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