3D porous layered double hydroxides grown on graphene as advanced electrochemical pseudocapacitor materials

Luojiang Zhang, Jie Wang, Jiajia Zhu, Xiaogang Zhang, Kwan San Hui, Kwun Nam Hui

研究成果: Article査読

153 被引用数 (Scopus)

抄録

A 3D hybrid nickel-aluminum layered double hydroxide (NiAl-LDH)-graphene nanosheets (GNS) composite as a supercapacitor material has been fabricated by in situ deposition of LDH nanosheets on graphene oxide (GO) through a liquid phase deposition method. The results reveal that NiAl-LDH homogeneously grew on the surface of GNS as spacers to keep the neighboring sheets separate. Optimum effects could be achieved when feeding ratio, reaction time and temperature are tuned. The obtained porous GNS/NiAl-LDH composite exhibited high-capacitance performance with a specific capacitance of 1255.8 F g-1 at a current density of 1 A g-1 and 755.6 F g-1 at 6 A g-1, respectively. Moreover, the composite exhibited excellent cycling performance with an increase of 6% capacitance compared with the initial capacitance after 1500 cycle tests. Such high specific capacitance, rate capability and exceptional cycling ability of the composite offered great promise in energy storage device applications.

本文言語English
ページ(範囲)9046-9053
ページ数8
ジャーナルJournal of Materials Chemistry A
1
32
DOI
出版ステータスPublished - 2013 8 28
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 再生可能エネルギー、持続可能性、環境
  • 材料科学(全般)

フィンガープリント

「3D porous layered double hydroxides grown on graphene as advanced electrochemical pseudocapacitor materials」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル