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

doi:10.1039/c6ta10094e

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

Department of Advanced Materials Science and Engineering

Sungkyunkwan University
National Institute for Materials Science Tsukuba
University of Wollongong

Research output: Contribution to journal › Article › peer-review

111 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	4320-4324
Number of pages	5
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	9
DOIs	https://doi.org/10.1039/c6ta10094e
State	Published - 2017

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title = "Mesoporous Ni-Fe oxide multi-composite hollow nanocages for efficient electrocatalytic water oxidation reactions",

abstract = "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.",

author = "Kang, \{Bong Kyun\} and Woo, \{Moo Hyun\} and Jooyoung Lee and Song, \{Young Hyun\} and Zhongli Wang and Yanna Guo and Yusuke Yamauchi and Kim, \{Jung Ho\} and Byungkwon Lim and Yoon, \{Dae Ho\}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c6ta10094e",

language = "English",

volume = "5",

pages = "4320--4324",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

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}

TY - JOUR

T1 - Mesoporous Ni-Fe oxide multi-composite hollow nanocages for efficient electrocatalytic water oxidation reactions

AU - Kang, Bong Kyun

AU - Woo, Moo Hyun

AU - Lee, Jooyoung

AU - Song, Young Hyun

AU - Wang, Zhongli

AU - Guo, Yanna

AU - Yamauchi, Yusuke

AU - Kim, Jung Ho

AU - Lim, Byungkwon

AU - Yoon, Dae Ho

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85014186823

U2 - 10.1039/c6ta10094e

DO - 10.1039/c6ta10094e

M3 - Article

AN - SCOPUS:85014186823

SN - 2050-7488

VL - 5

SP - 4320

EP - 4324

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 9

ER -

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

Abstract

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