One Pot Solvothermal Synthesis of Sandwich-like Mg Al Layered Double Hydroxide anchored Reduced Graphene Oxide: An excellent electrode material for Supercapacitor

被引：40

作者：

Hatui, Goutam ^{[1
]}

Nayak, Ganesh Chandra ^{[1
]}

Udayabhanu, G. ^{[1
]}

机构：

[1] IIT ISM Dhanbad, Dept Appl Chem, Dhanbad 826004, Jharkhand, India

来源：

ELECTROCHIMICA ACTA | 2016年 / 219卷

关键词：

LDH; Cyclic Stability; FESEM; Graphene; AFM; ELECTROCHEMICAL CAPACITANCE; TERNARY NANOCOMPOSITE; PERFORMANCE; COMPOSITE; CARBON; NI; ARCHITECTURE; FABRICATION; ADSORPTION; ZEOLITE;

D O I：

10.1016/j.electacta.2016.09.152

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work coined a one pot synthesis method for the preparation of sandwiched like Mg/Al layered double hydroxide anchored reduced graphene oxide (RGO@ MgAl LDH) nanocomposite for super-capacitor electrode. XRD, FTIR and XPS analysis along with FESEM, AFM and TEM confirmed the sandwiched like structure. Morphological analysis revealed that Mg2+/Al3+ LDH plates are uniformly grown on the surface of reduced graphene oxide nanosheet. Electrochemical characterization of developed nanocomposites, in 1 M aqueous KOH, gives rise to a specific capacitance of 1334 F g(-1) at a current density of 1 Ag-1 in three electrode cell set up. However, in two electrode configuration, a specific capacitance of 1092.5 Fg(-1) has been achieved with 1 M TEABF(4) (in acetonitrile) as electrolyte at a current density of 2 Ag-1. The cyclic stability test shows about 87% retention of specific capacitance after 10000 consecutive charge-discharge cycles at a steady current density of 5 Ag-1 in 2 electrode organic electrolyte system. The energy density of the nanocomposite also shows a high value of 388.26 W h Kg(-1) at a current density of 2 Ag-1 and a power density of 3198.48 W Kg(-1) in two electrode organic electrolyte configuration. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：214 / 226

页数：13

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