How to synthesize HxWO3 (hydrogen tungsten bronze) as a powder?

Aleksei Shchegolkov @Aleksei-Shchegolkov

15 February 2023 0 1K Report

How to get HxWO phase from WO3 in powder form? The addition of zinc causes the reduction of the tungsten in the reaction:

WO3 + x/2Zn= WO 3^x-+ x/2Zn^+2

The H+ ions in solution are then intercalated into the reduced WO3^x-crystal : WO3^x-+ xH 3 O^+=HxWO3 +xH2O. Is it possible to reduce tungsten to HxWO3 using other electroactive metals, such as Sn, Mg...? How stable will this chemical compound be?

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