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New FM2N publication by T. Nguyen

Published on October 15, 2015
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News, Communique April 27, 2015

The paper "Morphological changes and electrochemical response of mixed nickel manganese oxides as charge storage electrodes" has been published in Journal of Materials Chemistry A.

You will find here the paper bye Tuyen Nguyen. Here you have the abstract:

"Nickel manganese (Ni–Mn) oxide films were prepared by potentiostatic  electrodeposition over stainless steel and post-thermal annealing at 250 °C. Morphological and structural changes were observed depending on the Ni to Mn ratio in the electrolyte. Single-phase Ni1-xMnxO oxide was formed at low Mn content, whereas two phases composed of Ni1-xMnxO and NixMn3-xO4 were formed at high Mn content. Electrochemical studies revealed an increase of the specific capacitance of the mixed Ni–Mn oxide electrodes compared to the single metal oxides, thus pin-pointing a synergistic effect. The Ni–Mn oxide film displayed a specific capacitance of about 300 F g-1 in a potential window of 0.5 V at an applied current density of 1 A g-1. The rate capability of the oxides was 58% when the applied current was increased from 1 A g-1 to 10 A g-1. The Ni–Mn oxide film exhibits excellent cycling stability with 100% capacitance retention after 1500 cycles."
DOI: 10.1039/C5TA01453K


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Date of update January 7, 2017

Univ. Grenoble Alpes