Staff View: Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity

Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity

Renewable energy storage and conversion in electrochemical fuel cells require highly efficient and cost-effective noble metal free electrocatalysts for oxygen evolution reaction (OER). Downscaling of a material to nanoscale morphology can lead to enhancement in its surface activities affecting its p...

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Main Authors:	Kumar N., Upadhyay S., Karthikeyan M., Sen A., Chetana S., Joshi N.C., Priyadarshi N., Hossain I., Ansari M.N.M.
Other Authors:	57201635180
Format:	Article
Published:	Elsevier Ltd 2025
Subjects:	Copper oxides Cost effectiveness Electrocatalysts Fuel cells Fuel storage Morphology Oxygen Precious metals Solid state reactions Synthesis (chemical) Carbon sheets Cost effective CuO nanoparticles Electrochemicals Energy Energy storage and conversions Metal-free electrocatalysts Reaction activity Renewable energy storages Solid-state synthesis Nanoparticles
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spelling	my.uniten.dspace-366372025-03-03T15:43:34Z Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity Kumar N. Upadhyay S. Karthikeyan M. Sen A. Chetana S. Joshi N.C. Priyadarshi N. Hossain I. Ansari M.N.M. 57201635180 57220664508 57188664580 55620434300 57220922604 57200496551 57195679733 57200687453 55489853600 Copper oxides Cost effectiveness Electrocatalysts Fuel cells Fuel storage Morphology Oxygen Precious metals Solid state reactions Synthesis (chemical) Carbon sheets Cost effective CuO nanoparticles Electrochemicals Energy Energy storage and conversions Metal-free electrocatalysts Reaction activity Renewable energy storages Solid-state synthesis Nanoparticles Renewable energy storage and conversion in electrochemical fuel cells require highly efficient and cost-effective noble metal free electrocatalysts for oxygen evolution reaction (OER). Downscaling of a material to nanoscale morphology can lead to enhancement in its surface activities affecting its physical and chemical properties which can well serve the purpose. In lieu to this, it could be one of the first reports to tune the morphology of CuO particles to 10?25 nm finely trapped inside non-graphitic carbon sheets using a novel single step solid state reaction. XRD, SEM, TEM, XPS, and Raman analyses confirm the structural and morphological attributes. The synergistic effect from carbon and copper oxide resulted in the attainment of best-in-class electrode material for oxygen evolution reaction (OER). The as-prepared CuO/C shows an excellent OER activity with a low overpotential of 454 mV (vs. Ag/AgCl) at a current density of 10 mA cm?2 with a low Tafel slope of 74.9 mV dec?1. The amount of carbon is optimized to get optimal performance from the CuO nanopowder. ? 2024 Elsevier B.V. Final 2025-03-03T07:43:33Z 2025-03-03T07:43:33Z 2024 Article 10.1016/j.jallcom.2024.173842 2-s2.0-85185561275 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185561275&doi=10.1016%2fj.jallcom.2024.173842&partnerID=40&md5=dffc29566c47e10d434795669d08d80c https://irepository.uniten.edu.my/handle/123456789/36637 983 173842 Elsevier Ltd Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Copper oxides Cost effectiveness Electrocatalysts Fuel cells Fuel storage Morphology Oxygen Precious metals Solid state reactions Synthesis (chemical) Carbon sheets Cost effective CuO nanoparticles Electrochemicals Energy Energy storage and conversions Metal-free electrocatalysts Reaction activity Renewable energy storages Solid-state synthesis Nanoparticles
spellingShingle	Copper oxides Cost effectiveness Electrocatalysts Fuel cells Fuel storage Morphology Oxygen Precious metals Solid state reactions Synthesis (chemical) Carbon sheets Cost effective CuO nanoparticles Electrochemicals Energy Energy storage and conversions Metal-free electrocatalysts Reaction activity Renewable energy storages Solid-state synthesis Nanoparticles Kumar N. Upadhyay S. Karthikeyan M. Sen A. Chetana S. Joshi N.C. Priyadarshi N. Hossain I. Ansari M.N.M. Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
description	Renewable energy storage and conversion in electrochemical fuel cells require highly efficient and cost-effective noble metal free electrocatalysts for oxygen evolution reaction (OER). Downscaling of a material to nanoscale morphology can lead to enhancement in its surface activities affecting its physical and chemical properties which can well serve the purpose. In lieu to this, it could be one of the first reports to tune the morphology of CuO particles to 10?25 nm finely trapped inside non-graphitic carbon sheets using a novel single step solid state reaction. XRD, SEM, TEM, XPS, and Raman analyses confirm the structural and morphological attributes. The synergistic effect from carbon and copper oxide resulted in the attainment of best-in-class electrode material for oxygen evolution reaction (OER). The as-prepared CuO/C shows an excellent OER activity with a low overpotential of 454 mV (vs. Ag/AgCl) at a current density of 10 mA cm?2 with a low Tafel slope of 74.9 mV dec?1. The amount of carbon is optimized to get optimal performance from the CuO nanopowder. ? 2024 Elsevier B.V.
author2	57201635180
author_facet	57201635180 Kumar N. Upadhyay S. Karthikeyan M. Sen A. Chetana S. Joshi N.C. Priyadarshi N. Hossain I. Ansari M.N.M.
format	Article
author	Kumar N. Upadhyay S. Karthikeyan M. Sen A. Chetana S. Joshi N.C. Priyadarshi N. Hossain I. Ansari M.N.M.
author_sort	Kumar N.
title	Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
title_short	Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
title_full	Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
title_fullStr	Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
title_full_unstemmed	Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity
title_sort	facile one-step solid-state synthesis of cuo nanoparticles finely decorated over carbon sheets for improved oer activity
publisher	Elsevier Ltd
publishDate	2025
_version_	1825816190113546240
score	13.244368

Facile one-step solid-state synthesis of CuO nanoparticles finely decorated over carbon sheets for improved OER activity

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