Effect of interlayer anions on [NiFe]-LDH nanosheet water oxidation activity

Journal article


Publication Details

Author(s): Hunter BM, Hieringer W, Winkler JR, Gray HB, Mueller AM
Journal: Energy and Environmental Science
Publication year: 2016
Volume: 9
Journal issue: 5
Pages range: 1734-1743
ISSN: 1754-5692


Abstract

We synthesized nickel--iron layered double hydroxide ([NiFe]-LDH) nanosheets with different interlayer anions to probe their role in water oxidation catalysis. In alkaline electrolyte in ambient air, carbonate rapidly replaced other interlayer anions and catalytic activity was highest. Electrocatalytic water oxidation in virtually carbonate-free alkaline electrolyte revealed that activity was a function of anion basicity. Our [NiFe]-LDH nanosheets, prepared by pulsed laser ablation in liquids, were regenerated in carbonate-containing aqueous KOH. Anion binding motifs were assessed by X-ray photoelectron spectroscopy in combination with density functional theory calculations, suggesting that nitrite species bound to edge-site Fe in the precatalyst correlated with higher water oxidation activity.


FAU Authors / FAU Editors

Hieringer, Wolfgang PD Dr.
Lehrstuhl für Theoretische Chemie


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

California Institute of Technology (Caltech)


Research Fields

D Catalytic Materials
Exzellenz-Cluster Engineering of Advanced Materials
A3 Multiscale Modeling and Simulation
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Hunter, B.M., Hieringer, W., Winkler, J.R., Gray, H.B., & Mueller, A.M. (2016). Effect of interlayer anions on [NiFe]-LDH nanosheet water oxidation activity. Energy and Environmental Science, 9(5), 1734-1743. https://dx.doi.org/10.1039/c6ee00377j

MLA:
Hunter, B. M., et al. "Effect of interlayer anions on [NiFe]-LDH nanosheet water oxidation activity." Energy and Environmental Science 9.5 (2016): 1734-1743.

BibTeX: 

Last updated on 2019-20-03 at 23:08