The hydrogen evolution and corrosion of amorphous FeSx films

Amorphous FeSx films were formed by electrodeposition from an aqueous solut ion containing Fe2+ ions and thiourea. No X-ray diffraction spectra were fo und, but the films could be studied using transmission electron microscopy and electron diffraction. Some of the films showed nanocrystals of alpha -i ron "floating" in an amorphous mass of sulphur containing iron. The films w ere highly reactive and up to a 1000-fold increase in corrosion rate was ob served. (C) 2000 Elsevier Science Ltd. All rights reserved.