Ultrasound assisted formation of reduced graphene oxide-copper (II) oxide nanocomposite for energy storage applications
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- 作者：Dipanwita Majumdara ; wbesdmajumdar@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Nirmal Baughb ; Swapan Kumar Bhattacharyac ; skbhatt7@yahoo.co.in" class="auth_mail" title="E-mail the corresponding author
- 关键词：Graphene composite ; Copper(II) oxide ; Nanostructure ; Sonochemical ; Supercapacitor ; Electrode material
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：512
- 期：Complete
- 页码：158-170
- 全文大小：5163 K
文摘
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rGO-CuO nanocomposite has been fabricated with superior electrochemical behavior originating from synergistic effects of the components.
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One-pot ultrasound-assisted GO reduction by Cu(II) ions followed by deposition of self-assembled CuO onto rGO layers in a cheaper, green route.
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The nanocomposite shows better specific capacitance (Cs = 227 Fg−1) at high current density of 1 Ag−1 in the potential window of −0.3 V to + 0.8 V.
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EIS study suggests better electrical conductivity and superior ion transport performance for promising applications in energy storage devices.
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Few reports are available in the literature on nano-structured CuO anchored onto rGO sheets showing appreciable electrochemical signatures.