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Browsing by Author "Lekitima, JN"

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Comparative supercapacitive properties of asymmetry two electrode coin type supercapacitor cells made from MWCNTs/cobalt oxide and MWCNTs/iron oxide nanocomposite

Author: Adekunle, AS ; Agboola, BO ; Ozoemena, KI ; Ebenso, EE ; Oyekunle, JAO ; Oluwatobi, OS ; Lekitima, JN Date: Apr 2015 Supercapacitive properties of synthesized metal oxide nanoparticles (MO) vis a vis iron oxides (Fe(sub2)O(sub3)) and cobalt oxide (Co(sub3)O(sub4)) nanoparticles integrated with multi-walled carbon nanotubes (MWCNT) in a two-electrode coin ... Read more
Electrochemical capacitors based on nitrogen-enriched cobalt (II) phthalocyanine/multi-walled carbon nanotube nanocomposites

Author: Lekitima, JN ; Ozoemena, KI ; Kobayashi, N Date: Nov 2013 A nitrogen-enriched metallophthalocyanine, Cobalt (II)tetrapyrazinoporphyrazine (CoTPyzPz), modified with acid or phenylamine functionalized multiwalled carbon nanotubes (MWCNTaf and MWCNTPhNH2) have been studied for application as an ... Read more
High-performance aqueous asymmetric electrochemical capacitor based on graphene oxide/cobalt(II)-tetrapyrazinoporphyrazine hybrids

Author: Lekitima, JN ; Ozoemena, KI ; Jafta, CJ ; Kobayashi, N ; Song, Y ; Tong, D ; Chen, S ; Oyama, M Date: 2013 A novel asymmetric electrochemical capacitor (AEC) with high energy and power densities has been developed using a graphene oxide/cobalt(II)tetrapyrazinoporphyrazine composite (GO/CoTPyzPz) as the positive electrode and graphene oxide/carbon ... Read more
High-performance symmetric electrochemical capacitor based on graphene foam and nanostructured manganese oxide

Author: Bello, A ; Fashedemi, OO ; Lekitima, JN ; Fabiane, M ; Dodoo-Arhin, D ; Ozoemena, KI ; Gogotsi, Y ; Johnson, ATC ; Manyala, N Date: 2013 We have fabricated a symmetric electrochemical capacitor with high energy and power densities based on a composite of graphene foam (GF) with 80 wt% of manganese oxide (MnO(sub2)) deposited by hydrothermal synthesis. Raman spectroscopy and ... Read more

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Browsing by Author "Lekitima, JN"

Browsing by Author "Lekitima, JN"

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