Английская Википедия:Cerium(IV) oxide–cerium(III) oxide cycle

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Шаблон:Short description

Файл:Ceria Cycle.svg
Simplified diagram of the cerium(IV) oxide–cerium(III) oxide cycle

The cerium(IV) oxide–cerium(III) oxide cycle or CeO2/Ce2O3 cycle is a two-step thermochemical process that employs cerium(IV) oxide and cerium(III) oxide for hydrogen production.[1] The cerium-based cycle allows the separation of H2 and O2 in two steps, making high-temperature gas separation redundant.

Process description

The thermochemical two-step water splitting process (thermochemical cycle) uses redox systems:[2]

For the first endothermic step, cerium(IV) oxide is thermally dissociated in an inert gas atmosphere at Шаблон:Convert and 100-200 mbar into cerium(III) oxide and oxygen. In the second exothermic step cerium(III) oxide reacts at Шаблон:ConvertШаблон:Convert in a fixed bed reactor with water and produces hydrogen and cerium(IV) oxide.

See also

References

Шаблон:Reflist

External links