Graphene-Wrapped Nanoporous Nickel-Cobalt Oxide Flakes for Electrochemical Supercapacitors
Article
Alowasheeir, Azhar, Zakaria, Mohamed B., Lin, Jianjian, Chikyow, Toyohiro, Martin, Darren J., Alghamdi, Yousef Gamaan, Alshehri, Abdulmohsen Ali, Bando, Yoshio, Hossain, Md. Shahriar A., Wu, Kevin C.-W., Kumar, Nanjundan Ashok and Yamauchi, Yusuke. 2018. "Graphene-Wrapped Nanoporous Nickel-Cobalt Oxide Flakes for Electrochemical Supercapacitors." Chemistry Select. 3 (29), pp. 8505-8510. https://doi.org/10.1002/slct.201801174
Article Title | Graphene-Wrapped Nanoporous Nickel-Cobalt Oxide Flakes for Electrochemical Supercapacitors |
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ERA Journal ID | 210250 |
Article Category | Article |
Authors | Alowasheeir, Azhar, Zakaria, Mohamed B., Lin, Jianjian, Chikyow, Toyohiro, Martin, Darren J., Alghamdi, Yousef Gamaan, Alshehri, Abdulmohsen Ali, Bando, Yoshio, Hossain, Md. Shahriar A., Wu, Kevin C.-W., Kumar, Nanjundan Ashok and Yamauchi, Yusuke |
Journal Title | Chemistry Select |
Journal Citation | 3 (29), pp. 8505-8510 |
Number of Pages | 6 |
Year | 2018 |
Publisher | John Wiley & Sons |
ISSN | 2365-6549 |
Digital Object Identifier (DOI) | https://doi.org/10.1002/slct.201801174 |
Web Address (URL) | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/slct.201801174 |
Abstract | A novel approach for hybridizing nanoporous NiCo oxide flakes with graphene sheets is reported. Positively charged cyano-bridged CoNi coordination polymer flakes (CoNi-CP) are mixed with graphene (G) suspension with negatively charged surface. Due to effective electrostatic interaction, both the materials are hybridized to form CoNi-CP/G composite. The as-prepared CoNi-CP/G composite is thermally treated in air, to remove the organic components without affecting the integrity of the parent G sheets. Through the thermal treatment, the CoNi-CP flakes wrapped into G sheets are converted to NiCo oxide, resulting in a new composite consisting of NiCo oxide flakes and G sheets. The NiCo-oxide/G composite shows the high specific capacitance (∼ 199 F g-1) at 5 mV/s, and features the good capacitance retention of ∼68% at 100 mV(∼ 135 F g−1). |
Keywords | graphene |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340603. Colloid and surface chemistry |
400404. Electrochemical energy storage and conversion | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Qingdao University of Science and Technology, China |
National Institute for Materials Science, Japan | |
Waseda University, Japan | |
Tanta University, Egypt | |
University of Queensland | |
King Abdulaziz University, Saudi Arabia | |
National Taiwan University, Taiwan | |
Kyung Hee University, Korea |
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