Electrodeposition of WO nanoparticles into surface mounted metal-organic framework HKUST-1 thin films.

We describe a novel procedure to fabricate WO@surface-mounted metal-organic framework (SURMOF) hybrid materials by electrodeposition of WO nanoparticles into HKUST-1, also termed Cu(BTC) SURMOFs. These materials have been characterized using x-ray diffraction, time-of-flight secondary ion mass spectrometry, scanning electron microscopy, x-ray photoelectron spectroscopy as well as linear sweep voltammetry. The WO semiconductor/SURMOF heterostructures were further tested as hybrid electrodes in their performance for hydrogen evolution reaction from water.