Toshiba’s New Large-scale Production Technology for Electrolysis Electrodes for Hydrogen Production from Renewables Cuts Iridium Use to 1/10
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Thursday, October 6, 2022
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However, PEM uses iridium, one of the rarest of all traded precious metals, as the catalyst in its electrodes.
Key Points:
- However, PEM uses iridium, one of the rarest of all traded precious metals, as the catalyst in its electrodes.
- Toshiba developed an iridium oxide nanosheet laminated catalyst that reduced the iridium requirement to 1/10 in 2017.
- The company has now developed large-scale production technology that deposits the catalyst over a maximum area of 5m2 at one time.
- Using Toshiba's laminated nanosheet structure in the catalyst layer successfully reduces the required iridium to 1/10, while maintaining the water electrolysis performance (Fig.