Synthesis of Few-Layer Graphene Sheets from Waste Expanded Polystyrene by Dense Fe Cluster Catalysis

ACS Omega
Tianzhao HuYong Chen

Abstract

Graphene sheets have a vast number of potential applications due to their excellent properties. However, poor quality and harsh preparation conditions restrict their application. Here, few-layer graphene (FLG) sheet powder with high quality has been synthesized from waste expanded polystyrene (EPS) at low temperature by dense Fe cluster catalysis. The micron-sized FLG sheets comprising about three layers show high crystallinity and good electrical conductivity that are comparable to those of the shear-exfoliated graphene nanoplatelets. More than 70% carbon yield of FLG sheets from cheap EPS and their safe, controllable synthesis conditions make it easy to expand production. The catalytic formation mechanism of FLG sheets is studied.

References

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Dec 17, 2010·Environmental Science & Technology·Hui-Min FengMichael H W Lam
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Dec 4, 2017·ACS Omega·Housseinou BaIzabela Janowska

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Methods Mentioned

BETA
transmission electron microscopy
atomic force microscopy
electron diffraction
X-ray
scanning electron microscopy
differential scanning calorimetry
AFM
infrared spectroscopy
ESR

Software Mentioned

OriginLab
CasaXPS
METTLER TOLEDO

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