Hybrid MnO/C nanorod arrays derived from a MOF precursor with enhanced oxygen evolution activity

We have successfully synthesized MnO/C nanorod arrays which is the first report of MnO/C nanoarrays derived from Mn-MOFs nanoarrays as precursor, and the contents of C are dependent on the temperature of calcinations of MOFs. The MnO/C-350 nanorod array electrode materials exhibit excellent electroc...

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Bibliographic Details
Published in:Journal of materials science 2018-08, Vol.53 (16), p.11574-11583
Main Authors: Liu, Ping-Ping, Zhu, Hong-Lin, Zheng, Yue-Qing
Format: Article
Language:English
Subjects:
Arrays
Batteries
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Electrode materials
Electronic Materials
Manganese oxides
Materials Science
Nanorods
Oxygen evolution reactions
Polymer Sciences
Precursors
Solid Mechanics
Temperature dependence
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Summary:We have successfully synthesized MnO/C nanorod arrays which is the first report of MnO/C nanoarrays derived from Mn-MOFs nanoarrays as precursor, and the contents of C are dependent on the temperature of calcinations of MOFs. The MnO/C-350 nanorod array electrode materials exhibit excellent electrocatalytic performances for oxygen evolution reaction; only a small over-potential of 329 mV versus RHE is needed for a current density of 20 mA cm −2 with a Tafel slope of 70.02 mV dec −1 , and the material of MnO/C nanoarrays are superior to all reported MnO catalysts.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-018-2426-x