ORCID Profile
0000-0002-4529-7923
Current Organisation
Kyushu University
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Publisher: Wiley
Date: 29-07-2021
Abstract: The design and development of highly efficient and stable oxygen evolution reaction (OER) electrocatalysts in acid media are important for various renewable technologies. Herein, an advanced Co 3 O 4 electrocatalyst supported on a mesoporous hydrophobic carbon paper (Co/29BC) is formed via a simple one‐step thermal decomposition of cobalt nitrate. Through this novel approach, the amorphous carbon layer resulting from the thermal decomposition of carbon‐containing species in the mesoporous layer provides enhanced electronic conduction and protection against corrosion to the Co 3 O 4 nanoparticles. Equally important, the OER performance is found to be correlated with the morphology and surface composition of Co 3 O 4 . With optimized Co 3+ active sites and oxygen vacancies at the metal oxide surface, the Co 3 O 4 catalyst shows superior OER performance and durability in a proton exchange membrane (PEM) water electrolyzer, with a small overpotential (350 mV) at a constant current density of 10 mA cm −1 for over 50 h. Accordingly, this work provides new insights toward the design of high‐performance and highly stable OER electrocatalysts in corrosive acidic environments.
Publisher: Elsevier BV
Date: 08-2019
Publisher: Elsevier BV
Date: 08-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SE00121E
Abstract: Complex borohydrides of calcium (Ca(BH 4 ) 2 ) and magnesium (Mg(BH 4 ) 2 ) have the potential to store significant amounts of hydrogen. However, the temperature for hydrogen release is high °C and reversibility difficult to achieve. Nanoconfinement of these hydrides in Cu 2 S hollow spheres provides an effective approach to achieve a low temperature for hydrogen release with some partial reversibility.
Publisher: Wiley
Date: 27-12-2017
Publisher: Elsevier BV
Date: 2018
Publisher: Yaoyi International Publishing
Date: 2018
Publisher: Elsevier BV
Date: 06-2014
Publisher: American Chemical Society (ACS)
Date: 12-02-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9NA00037B
Abstract: Sodium borohydride (NaBH 4 ) is an attractive hydrogen carrier owing to its reactivity with water: it can generate 4 equivalents of H 2 by hydrolysis (NaBH 4 + 4H 2 O → NaB(OH) 4 + 4H 2 ).
Publisher: Elsevier BV
Date: 08-2016
Publisher: Wiley
Date: 06-2015
Abstract: One of the limitations to the widespread use of hydrogen as an energy carrier is its storage in a safe and compact form. Herein, recent developments in effective high-capacity hydrogen storage materials are reviewed, with a special emphasis on light compounds, including those based on organic porous structures, boron, nitrogen, and aluminum. These elements and their related compounds hold the promise of high, reversible, and practical hydrogen storage capacity for mobile applications, including vehicles and portable power equipment, but also for the large scale and distributed storage of energy for stationary applications. Current understanding of the fundamental principles that govern the interaction of hydrogen with these light compounds is summarized, as well as basic strategies to meet practical targets of hydrogen uptake and release. The limitation of these strategies and current understanding is also discussed and new directions proposed.
Publisher: Wiley
Date: 26-06-2019
Publisher: Wiley
Date: 23-02-2018
Publisher: Wiley
Date: 12-08-2020
Publisher: American Chemical Society (ACS)
Date: 14-11-2018
Publisher: Springer Science and Business Media LLC
Date: 07-2020
DOI: 10.1557/MRE.2020.33
Start Date: 2019
End Date: 2020
Funder: Japan Society for the Promotion of Science
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