Facile synthesis of ZnO nanoflowers/reduced graphene oxide nanocomposite using zinc hexacyanoferrate for supercapacitor applications

被引：45
作者：
Subramani, K. [1 ,2 ]
Sathish, M. [1 ,2 ]
机构：
[1] CSIR, Cent Electrochem Res Inst, Funct Mat Div, Karaikkudi 630003, Tamil Nadu, India
[2] CSIR, Cent Electrochem Res Inst, Acad Sci & Innovat Res AcSIR, Karaikkudi 630003, Tamil Nadu, India
来源：
MATERIALS LETTERS | 2019年 / 236卷
关键词：
Zinc oxide; Nanoflowers; Graphene; Nanocomposite; Energy storage; Supercapacitor; HIGH-ENERGY;
D O I：
10.1016/j.matlet.2018.10.111
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We demonstrated a facile and scalable synthesis of crystalline hexagonal ZnO nanoflowers/reduced graphene oxide nanocomposite (ZnO-NFs/RGO NCs) via direct chemical decomposition of zinc hexacyanoferrate (ZnHCF) over reduced graphene oxide (RGO) nanosheets. The phase formation and degree of functionalization of as-synthesized ZnO-NFs/RGO NCs was confirmed from XRD and FT-IR spectroscopic analysis, respectively. The hierarchical ZnO nanoflowers consist of 2D nanosheets wrapped with RGO nanosheets was confirmed from FE-SEM and HR-TEM images. The synthesized ZnO-NFs/RGO NCs exhibits a high specific capacitance of 203 F g(-1) at the current density of 1 Ag-1 with good rate performance and also showed an excellent electrochemical stability of 98% for 10,000 cycles at high current density of 20 A g(-1). (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：424 / 427
页数：4
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