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Kani K, Henzie J, Dag Ö, Wood K, Iqbal M, Lim H, Jiang B, Salomon C, Rowan AE, Hossain MSA, Na J, Yamauchi Y. Electrochemical Synthesis of Mesoporous Architectured Ru Films Using Supramolecular Templates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002489. [PMID: 32767535 DOI: 10.1002/smll.202002489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/23/2020] [Indexed: 06/11/2023]
Abstract
The electrochemical synthesis of mesoporous ruthenium (Ru) films using sacrificial self-assembled block polymer micelles templates, and its electrochemical surface oxidation to RuOx is described. Unlike standard methods such as thermal oxidation, the electrochemical oxidation method described here retains the mesoporous structure. Ru oxide materials serve as high-performance supercapacitor electrodes due to their excellent pseudocapacitive behavior. The mesoporous architectured film shows superior specific capacitance (467 F g-1Ru ) versus a nonporous Ru/RuOx electrode (28 F g-1Ru ) that is prepared via the same method but omitting the pore-directing polymer. Ultrahigh surface area materials will play an essential role in increasing the capacitance of this class of energy storage devices because the pseudocapacitive redox reaction occurs on the surface of electrodes.
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Affiliation(s)
- Kenya Kani
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Joel Henzie
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Ömer Dag
- Department of Chemistry and UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | - Kathleen Wood
- Australian Nuclear Science and Technology Organisation (ANSTO), New Illawara Rd, Lucas Heights, NSW, 2234, Australia
| | - Muhammad Iqbal
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Hyunsoo Lim
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Bo Jiang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, The University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane, QLD, 4029, Australia
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, 4030000, Chile
| | - Alan E Rowan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Md Shahriar A Hossain
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- School of Mechanical and Mining Engineering, Faculty of Engineering, Architecture and Information Technology (EAIT), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology (EAIT), The University of Queensland, Brisbane, QLD, 4072, Australia
- Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-dareo, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, South Korea
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Pagliaro MV, Bellini M, Bevilacqua M, Filippi J, Folliero MG, Marchionni A, Miller HA, Oberhauser W, Caporali S, Innocenti M, Vizza F. Carbon supported Rh nanoparticles for the production of hydrogen and chemicals by the electroreforming of biomass-derived alcohols. RSC Adv 2017. [DOI: 10.1039/c7ra00044h] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrolyzer assembled with a Rh/C nanostructured anode electrode, promotes the partial oxidation of alcohols and high-purity hydrogen evolution in alkaline media at low energy input.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Massimo Innocenti
- CNR-ICCOM
- Sesto Fiorentino (FI)
- Italy
- Dipartimento di Chimica
- Università di Firenze
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