Enhancement of Photocatalytic and Electrochromic Properties of Electrochemically Fabricated Mesoporous WO₃ Thin Films

Abstract

Mesoporous WO 3 films with a lamellar structure (see Figure) have been synthesized by electrodeposition using sodium dodecyl sulfate (SDS) as a templating agent. Compared to non‐porous WO 3 prepared with isopropanol instead of SDS, lamellar phase mesoporous WO 3 showed higher photocatalytic activity and greater current density for hydrogen intercalation, probably due to the larger surface area of mesoporous WO 3 and more facile charge transport.