Issue 15, 2019

Constructing a highly oriented layered MOF nanoarray from a layered double hydroxide for efficient and long-lasting alkaline water oxidation electrocatalysis

Abstract

Metal organic frameworks (MOFs) with massive tunable periodic pores and high specific areas exceeding those of zeolites and carbon-based materials hold great promise for energy storage and conversion. In this study, we report the use of an NiFe-layered double hydroxide nanoarray on a nickel foam (NiFe-LDH/NF) as both the precursor and nanoarray template toward the in situ fabrication of a highly oriented three-dimensional (3D) MOF nanoarray (Fe0.1-Ni-MOF/NF). The as-prepared Fe0.1-Ni-MOF/NF behaved efficiently as an earth-abundant electrocatalyst for alkaline water oxidation, requiring low overpotentials of 243 and 263 mV to afford 50 and 100 mA cm−2 in 1.0 M KOH, respectively; moreover, its catalytic activity could be maintained for at least 20 h at a high current density of 150 mA cm−2. Impressively, it also achieved high turnover frequency values of 0.018 and 0.086 O2 s−1 at low overpotentials of 250 and 300 mV, respectively.

Graphical abstract: Constructing a highly oriented layered MOF nanoarray from a layered double hydroxide for efficient and long-lasting alkaline water oxidation electrocatalysis

Supplementary files

Article information

Article type
Communication
Submitted
22 1月 2019
Accepted
11 3月 2019
First published
13 3月 2019

J. Mater. Chem. A, 2019,7, 8771-8776

Constructing a highly oriented layered MOF nanoarray from a layered double hydroxide for efficient and long-lasting alkaline water oxidation electrocatalysis

L. Yang, G. Zhu, H. Wen, X. Guan, X. Sun, H. Feng, W. Tian, D. Zheng, X. Cheng and Y. Yao, J. Mater. Chem. A, 2019, 7, 8771 DOI: 10.1039/C9TA00819E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements