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Nanomaterials (Basel). 2017 Oct 12;7(10). pii: E318. doi: 10.3390/nano7100318.

Upcycling Waste Lard Oil into Vertical Graphene Sheets by Inductively Coupled Plasma Assisted Chemical Vapor Deposition.

Author information

1
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China. wuaj@zju.edu.cn.
2
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China. lixd@zju.edu.cn.
3
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China. yzyj@zju.edu.cn.
4
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China. duchm@mail.sysu.edu.cn.
5
China United Engineering Corporation, Hangzhou 310052, China. shenwj@chinacuc.com.
6
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China. yanjh@zju.edu.cn.

Abstract

Vertical graphene (VG) sheets were single-step synthesized via inductively coupled plasma (ICP)-enhanced chemical vapor deposition (PECVD) using waste lard oil as a sustainable and economical carbon source. Interweaved few-layer VG sheets, H₂, and other hydrocarbon gases were obtained after the decomposition of waste lard oil. The influence of parameters such as temperature, gas proportion, ICP power was investigated to tune the nanostructures of obtained VG, which indicated that a proper temperature and H₂ concentration was indispensable for the synthesis of VG sheets. Rich defects of VG were formed with a high I D / I G ratio (1.29), consistent with the dense edges structure observed in electron microscopy. Additionally, the morphologies, crystalline degree, and wettability of nanostructure carbon induced by PECVD and ICP separately were comparatively analyzed. The present work demonstrated the potential of our PECVD recipe to synthesize VG from abundant natural waste oil, which paved the way to upgrade the low-value hydrocarbons into advanced carbon material.

KEYWORDS:

ICP; PECVD; VG; characterization; waste lard oil

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