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Chemically Coupled ...
Chemically Coupled Cobalt Oxide Nanosheets Decorated onto the Surface of Multiwall Carbon Nanotubes for Favorable Oxygen Evolution Reaction
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- Mugheri, Abdul Qayoom (författare)
- Univ Sindh Jamshoro, Pakistan
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- Tahira, Aneela (författare)
- Linköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten
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- Aftab, Umair (författare)
- Mehran Univ Engn & Technol, Pakistan
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- Bhatti, Adeel Liaquat (författare)
- Univ Sindh Jamshoro, Pakistan
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- Lal, Ramesh (författare)
- Shah Abdul Latif Univ Khairpur Mirs, Pakistan
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- Bhatti, Muhammad Ali (författare)
- Univ Sindh Jamshoro, Pakistan
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- Memon, Ghulam Zuhra (författare)
- Univ Sindh Jamshoro, Pakistan
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- Mallah, Arfana Begum (författare)
- Univ Sindh Jamshoro, Pakistan
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- Abassi, Mazhar Ali (författare)
- Univ Sindh Jamshoro, Pakistan
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- Nafady, Ayman (författare)
- King Saud Univ, Saudi Arabia
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- Ibupoto, Zafar Hussain (författare)
- Univ Sindh Jamshoro, Pakistan
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(creator_code:org_t)
- AMER SCIENTIFIC PUBLISHERS, 2021
- 2021
- Engelska.
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Ingår i: Journal of Nanoscience and Nanotechnology. - : AMER SCIENTIFIC PUBLISHERS. - 1533-4880 .- 1533-4899. ; 21:4, s. 2660-2667
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Cobalt oxide has been widely investigated among potential transition metal oxides for the electrochemical energy conversion, storage, and water splitting. However, they have inherently low electronic conductivity and high corrosive nature in alkaline media. Herein, we propose a promising and facile approach to improve the conductivity and charge transport of cobalt oxide Co3O4 through chemical coupling with well-dispersed multiwall carbon nanotubes (MWCNTs) during hydrothermal treatment. The morphology of prepared composite material consisting of nanosheets which are anchored on the MWCNTs as confirmed by scanning electron microscopy (SEM). A cubic crystalline system is exhibited by the cobalt oxide as confirmed by the X-ray diffraction study. The Co, O, and C are the only elements present in the composite material. FTIR study has indicated the successful coupling of cobalt oxide with MWCNTs. The chemically coupled cobalt oxide onto the surface of MWCNTs composite is found highly active towards oxygen evolution reaction (OER) with a low onset potential 1.44 V versus RHE, low overpotential 262 mV at 10 mAcm(-2) and small Tafel slope 81 mV dec(-1). For continuous operation of 40 hours during durability test, no decay in activity was recorded. Electrochemical impedance study further revealed a low charge transfer resistance of 70.64 Ohms for the composite material during the electrochemical reaction and which strongly favored OER kinetics. This work provides a simple, low cost, and smartly designing electrocatalysts via hydrothermal reaction for the catalysis and energy storage applications.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- MWCNTs; Cobalt Oxide; Hydrothermal Reaction; Oxygen Evolution Reaction
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- art (ämneskategori)
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Mugheri, Abdul Q ...
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Tahira, Aneela
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Aftab, Umair
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Bhatti, Adeel Li ...
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Lal, Ramesh
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Bhatti, Muhammad ...
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visa fler...
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Memon, Ghulam Zu ...
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Mallah, Arfana B ...
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Abassi, Mazhar A ...
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Nafady, Ayman
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Ibupoto, Zafar H ...
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visa färre...
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- NATURVETENSKAP
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NATURVETENSKAP
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Journal of Nanos ...
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Linköpings universitet