Abstract
Controllable synthesis of electrocatalysts for water electrolysis is an ongoing technological challenge for renewable hydrogen production. Although numerous methods for the synthesis of materials have been developed, they suffer from unmanageable reaction conditions, environmental impact, and complicated device configuration. In their Concept article on page 3898 ff., Qiao et al. describe the development of the ampoule method and its application in electrocatalyst synthesis for water electrolysis. The history, device configuration, and merits of the ampoule method are briefly introduced, and then typical materials synthesized by this method are discussed and recent process in applying it towards the synthesis of electrocatalysts for water electrolysis is highlighted.
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