Hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets containing trivalent nickel for oxygen evolution reaction

Geng Wu; Wenxing Chen; Xusheng Zheng; Daping He; Yiqi Luo; Xiaoqian Wang; Jian Yang; Yuen Wu; Wensheng Yan; Zhongbin Zhuang; Xun Hong; Yadong Li

doi:10.1016/j.nanoen.2017.05.044

Hierarchical Fe-doped NiO_x nanotubes assembled from ultrathin nanosheets containing trivalent nickel for oxygen evolution reaction

Geng Wu, Wenxing Chen, Xusheng Zheng, Daping He, Yiqi Luo, Xiaoqian Wang, Jian Yang, Yuen Wu, Wensheng Yan, Zhongbin Zhuang, Xun Hong^*, Yadong Li

^*Corresponding author for this work

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

166 Citations (Scopus)

Abstract

To design highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) is a great challenge for electrochemical water splitting. Herein, we report the preparation of hierarchical Fe-doped NiO_x nanotubes assembled from ultrathin nanosheets with a thickness of 2.4 nm. X-ray photoelectron spectroscopy (XPS) spectra, X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy investigations have been suggested that the incorporation of Fe results in abundant trivalent nickel and nickel vacancies. Benefitting from their unique geometric and electronic structure, the as-prepared hierarchical Fe-doped NiO_x nanotubes exhibit outstanding OER activity and stability, with overpotential of 310 mV and a small Tafel slope of ~ 49 mV dec⁻¹ at 10 mA cm⁻².

Original language	English
Pages (from-to)	167-174
Number of pages	8
Journal	Nano Energy
Volume	38
DOIs	https://doi.org/10.1016/j.nanoen.2017.05.044
Publication status	Published - Aug 2017
Externally published	Yes

Keywords

Electrocatalysis
Nanosheets
Nanotubes
Nickel oxide
Oxygen evolution reaction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.nanoen.2017.05.044

Cite this

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title = "Hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets containing trivalent nickel for oxygen evolution reaction",

abstract = "To design highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) is a great challenge for electrochemical water splitting. Herein, we report the preparation of hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets with a thickness of 2.4 nm. X-ray photoelectron spectroscopy (XPS) spectra, X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy investigations have been suggested that the incorporation of Fe results in abundant trivalent nickel and nickel vacancies. Benefitting from their unique geometric and electronic structure, the as-prepared hierarchical Fe-doped NiOx nanotubes exhibit outstanding OER activity and stability, with overpotential of 310 mV and a small Tafel slope of ~ 49 mV dec−1 at 10 mA cm−2.",

keywords = "Electrocatalysis, Nanosheets, Nanotubes, Nickel oxide, Oxygen evolution reaction",

author = "Geng Wu and Wenxing Chen and Xusheng Zheng and Daping He and Yiqi Luo and Xiaoqian Wang and Jian Yang and Yuen Wu and Wensheng Yan and Zhongbin Zhuang and Xun Hong and Yadong Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = aug,

doi = "10.1016/j.nanoen.2017.05.044",

language = "English",

volume = "38",

pages = "167--174",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets containing trivalent nickel for oxygen evolution reaction

AU - Wu, Geng

AU - Chen, Wenxing

AU - Zheng, Xusheng

AU - He, Daping

AU - Luo, Yiqi

AU - Wang, Xiaoqian

AU - Yang, Jian

AU - Wu, Yuen

AU - Yan, Wensheng

AU - Zhuang, Zhongbin

AU - Hong, Xun

AU - Li, Yadong

PY - 2017/8

Y1 - 2017/8

N2 - To design highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) is a great challenge for electrochemical water splitting. Herein, we report the preparation of hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets with a thickness of 2.4 nm. X-ray photoelectron spectroscopy (XPS) spectra, X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy investigations have been suggested that the incorporation of Fe results in abundant trivalent nickel and nickel vacancies. Benefitting from their unique geometric and electronic structure, the as-prepared hierarchical Fe-doped NiOx nanotubes exhibit outstanding OER activity and stability, with overpotential of 310 mV and a small Tafel slope of ~ 49 mV dec−1 at 10 mA cm−2.

AB - To design highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) is a great challenge for electrochemical water splitting. Herein, we report the preparation of hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets with a thickness of 2.4 nm. X-ray photoelectron spectroscopy (XPS) spectra, X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy investigations have been suggested that the incorporation of Fe results in abundant trivalent nickel and nickel vacancies. Benefitting from their unique geometric and electronic structure, the as-prepared hierarchical Fe-doped NiOx nanotubes exhibit outstanding OER activity and stability, with overpotential of 310 mV and a small Tafel slope of ~ 49 mV dec−1 at 10 mA cm−2.

KW - Electrocatalysis

KW - Nanosheets

KW - Nanotubes

KW - Nickel oxide

KW - Oxygen evolution reaction

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U2 - 10.1016/j.nanoen.2017.05.044

DO - 10.1016/j.nanoen.2017.05.044

M3 - Article

AN - SCOPUS:85020002440

SN - 2211-2855

VL - 38

SP - 167

EP - 174

JO - Nano Energy

JF - Nano Energy

ER -