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Microwave-assisted synthesis of high-voltage nanostructured LiMn1.5Ni0.5O4 spinel: tuning the Mn3+ content and electrochemical performance

Author: Jafta, CJ ; Mathe, Mahlanyane K ; Manyala, N ; Roos, WD ; Ozoemena, KI Date: Aug 2013 The LiMn1.5Ni0.5O4 spinel is an important lithium ion battery cathode material that has continued to receive major research attention because of its high operating voltage (∼4.8 V). This study interrogates the impact of microwave irradiation ... Read more
Photoluminescence quenching and enhanced optical conductivity of P3HT derived Ho3+-doped ZnO nanostructures

Author: Kabongo, GL ; Mbule, PS ; Mhlongo, Gugu H ; Mothudi, BM ; Hillie, Kenneth T ; Dhlamini, MS Date: Dec 2016 In this article, we demonstrate the surface effect and optoelectronic properties of holmium (Ho(sup3+))-doped ZnO in P3HT polymer nanocomposite. We incorporated ZnO:Ho(sup3+) (0.5 mol% Ho) nanostructures in the pristine P3HT-conjugated polymer ... Read more
Structural, photoluminescence and XPS properties of Tm3þ ions in ZnO nanostructures

Author: Kabongo, GL ; Mhlongo, Gugu H ; Mothudi, BM ; Hillie, Kenneth T ; Mbule, PS ; Dhlamini, MS Date: Jul 2017 In the present study, a succession of thulium (Tm)-doped zinc oxide (ZnO) nanostructures samples were prepared by sol-gel method using zinc acetate dihydrate, thulium nitrate pentahydrate and sodium hydroxide species with absolute ethanol as ... Read more
XPS and SIMS study of aluminium native oxide modifications induced by Q-switched Nd :YAG laser treatment

Author: Barnier, V ; Heintz, O ; Roberts, DE ; Oltra, R ; Costil, S Date: Apr 2006 During laser cleaning of aluminium in ambient atmosphere, modifications of the metal surface can be induced by transient thermal effects. This work aims to characterize the modification of the aluminium oxide layer on pure aluminium for a ... Read more

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Browsing by Subject "XPS"

Browsing by Subject "XPS"

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