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Filtering by: Creator Akihiro Ohira

Redox-Flow Battery Operating in Neutral and Acidic Environments with Multielectron-Transfer-Type Viologen Molecular Assembly

Description/Abstract:

Recently, redox flow batteries (RFBs) have attracted attention as a large-scale energy storage technology. To improve their energy densit...

Keyword:

aqueous solution, dendritic structure, molecular assembly, organic molecules, redox flow battery, and viologen

Resource Type:

Article

Author:

Akihiro Ohira, Takashi Funaki, Erika Ishida, Je-Deok Kim, and Yukari Sato

Date Uploaded:

30/03/2023
Chemically Crosslinked Sulfonated Polyphenylsulfone (CSPPSU) Membranes for PEM Fuel Cells

Description/Abstract:

Sulfonated polyphenylsulfone (SPPSU) with a high ion exchange capacity (IEC) was synthesized using commercially available PPSU, and a lar...

Keyword:

CSPPSU, High IEC, activation, PEMFCs, and PPSU

Resource Type:

Article

Author:

Je-Deok Kim, Akihiro Ohira, and Hidenobu Nakao

Date Uploaded:

03/03/2023
Water Electrolysis Using a Porous IrO2/Ti/IrO2 Catalyst Electrode and Nafion Membranes at Elevated Temperatures

Description/Abstract:

Porous IrO2/Ti/IrO2 catalyst electrodes were obtained by coating IrO2 on three types of porous Ti powder sheets (sample 1, sample 2, and ...

Keyword:

elevated temperature, nafion membrane, polymer electrolyte, porous IrO2/Ti/IrO2 catalyst electrode, and water electrolysis

Resource Type:

Article

Author:

Je-Deok Kim and Akihiro Ohira

Date Uploaded:

03/03/2023
Crosslinked Sulfonated Polyphenylsulfone (CSPPSU) Membranes for Elevated-Temperature PEM Water Electrolysis

Description/Abstract:

In order to reduce the burden on the environment, there is a need to develop non-fluorinated electrolyte membranes as alternatives to flu...

Keyword:

CSPPSU membrane, PEM water electrolysis, elevated temperature, engineering plastic PPSU, and hydrocarbon electrolytes

Resource Type:

Article

Author:

Jedeok Kim and Akihiro Ohira

Date Uploaded:

03/03/2023