Fabrication of Graphene/MoS2 Nanocomposite for Flexible Energy Storage
2019; Nanoscience and Nanotechnology Research Center, University of Kashan; Volume: 9; Issue: 1 Linguagem: Inglês
10.22052/jns.2019.01.004
ISSN2251-788X
AutoresShahab Khameneh Asl, Majed Namdar Habashi, Abbass Kianvash, Ali Alipour, Sina Mohini, Hamed Asgharzadeh,
Tópico(s)Biodiesel Production and Applications
ResumoIn the present work,MoS2 decorated graphene nanocomposite powders were synthesized by laser scribing method.Theobtainedflexible light-scribed graphene/MoS2composites are very suitableas micro-supercapacitors and thus their performance was evaluated at different concentrations.The effect of laser scribing process to reducegraphene oxide (GO) was investigated. The GO/MoS2composite wassynthesized using a chemical mixing of GO solution withMoS2/Dimethylformamide (DMF)solution.Themixtures with various concentrations of MoS2were then coated on a LightScribe DVD disk and laser scribed to reduce GO and create aMoS2/laser-scribed graphene (LSG) composite. Four different concentrations of MoS2/LSG composites (pristine rGO, 1:100, 1:75 and 1:50 MoS2/LSG) were utilized as supercapacitor electrode and the electrode with the best performance was selected for flexible micro-supercapacitor applications. The present findingsdemonstrate that MoS2/LSGmicro-supercapacitor has high specific capacitance per area. The sample with MoS2/LSGvolume ratio of 1:50 shows the highest specific capacitance (~ 8 Fcm-3) and itscyclic stabilityis favorable over 1000 cycles. Keywords:Graphene oxide, laser scribed graphene,MoS2/LSG nanocomposite, micro-supercapacitor, RGO, Microstructure, DVD.
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