Mesoporous Ni-Fe oxide multi-composite hollow nanocages for efficient electrocatalytic water oxidation reactions

Bong Kyun Kang, Moo Hyun Woo, Jooyoung Lee, Young Hyun Song, Zhongli Wang, Yanna Guo, Yusuke Yamauchi, Jung Ho Kim, Byungkwon Lim, Dae Ho Yoon*

*この研究の対応する著者

研究成果: Article査読

74 被引用数 (Scopus)

抄録

Mesoporous NiO/NiFe2O4 multi-composite hollow nanocages via monodisperse Ni3[Fe(CN)6]2 prussian blue analogue nanocube precursors were successfully synthesized. The three-dimensional (3D) mesoporous and hollow structures provided an efficient electrolyte diffusion path and a high surface area, resulting in the enhancement of electrocatalytic activities for the oxygen evolution reaction. The overpotential and Tafel slope of mesoporous NiO/NiFe2O4 multi-composite hollow nanocages were as low as 303 mV at a current density of 10 mA cm-2 and 58.5 mV dec-1, respectively. In addition, the composite showed excellent durability at approximately 60 mA cm-2 for 12 h.

本文言語English
ページ(範囲)4320-4324
ページ数5
ジャーナルJournal of Materials Chemistry A
5
9
DOI
出版ステータスPublished - 2017
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)

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