journal article·2020-09

Electrochemical Synthesis of Mesoporous Architectured Ru Films Using Supramolecular Templates

Kenya Kani, Joel Henzie, Ömer Dag, Kathleen Wood, Muhammad Iqbal, Hyunsoo Lim, Bo Jiang, Carlos Salomon, Alan E. Rowan, Md. Shahriar A. Hossain, Jongbeom Na, Yusuke Yamauchi

Small· Volume 16· Issue 35
Publisher page

Abstract

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−1 Ru) versus a nonporous Ru/RuOx electrode (28 F g−1 Ru) 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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Research context

OpenAlex topics: Supercapacitor Materials and Fabrication · Conducting polymers and applications · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

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

Department of Chemistry and UNAM‐National Nanotechnology Research Center Bilkent University Ankara 06800 Turkey

Australian Nuclear Science and Technology Organisation (ANSTO) New Illawara Rd Lucas Heights NSW 2234 Australia

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

School of Mechanical and Mining Engineering Faculty of Engineering Architecture and Information Technology (EAIT) The University of Queensland Brisbane QLD 4072 Australia

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

Funding

Australian Research Council · National Health and Medical Research Council · Fondo Nacional de Desarrollo Científico y Tecnológico

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