Nanoporous Iron Oxide/Carbon Composites through In-Situ Deposition of Prussian Blue Nanoparticles on Graphene Oxide Nanosheets and Subsequent Thermal Treatment for Supercapacitor Applications.

Autor: Azhar A; International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. horiatalbher@hotmail.com., Yamauchi Y; Key Laboratory of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. y.yamauchi@uq.edu.au.; School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia. y.yamauchi@uq.edu.au.; Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Korea. y.yamauchi@uq.edu.au., Allah AE; International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. abeer.abdelaal@science.bsu.edu.eg.; Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt. abeer.abdelaal@science.bsu.edu.eg., Alothman ZA; Advanced Material Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. zaothman@ksu.edu.sa., Badjah AY; Advanced Material Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. ybadjah@ksu.edu.sa., Naushad M; Advanced Material Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mnaushad@ksu.edu.sa., Habila M; Advanced Material Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mhabila@ksu.edu.sa., Wabaidur S; Advanced Material Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. tarabai22@yahoo.com.sg., Wang J; International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. WANG.Jie@nims.go.jp., Zakaria MB; International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. mohamed.barakat@nims.go.jp.; School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia. mohamed.barakat@nims.go.jp.; Department of Chemistry, Faculty of Science, Tanta University, Tanta, Gharbeya 31527, Egypt. mohamed.barakat@nims.go.jp.
Jazyk: angličtina
Zdroj: Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2019 May 21; Vol. 9 (5). Date of Electronic Publication: 2019 May 21.
DOI: 10.3390/nano9050776
Abstrakt: This work reports the successful preparation of nanoporous iron oxide/carbon composites through the in-situ growth of Prussian blue (PB) nanoparticles on the surface of graphene oxide (GO) nanosheets. The applied thermal treatment allows the conversion of PB nanoparticles into iron oxide (Fe 2 O 3 ) nanoparticles. The resulting iron oxide/carbon composite exhibits higher specific capacitance at all scan rates than pure GO and Fe 2 O 3 electrodes due to the synergistic contribution of electric double-layer capacitance from GO and pseudocapacitance from Fe 2 O 3 . Notably, even at a high current density of 20 A g -1 , the iron oxide/carbon composite still shows a high capacitance retention of 51%, indicating that the hybrid structure provides a highly accessible path for diffusion of electrolyte ions.
Databáze: MEDLINE
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