Iron Sulfide Formation on Iron Substrates by Electrochemical Reaction in Anoxic Conditions
By Guan, Xiaofei; Enalls, Brandon C.; Clarke, David R.; Girguis, Peter
Published in Crystal Growth & Design
2017
Abstract
Electrodeposition has been widely used for the low-cost formation of large-area thin films of various crystalline materials. In this work, we use thermodynamic calculations to guide electrochemical experiments, in which we conduct a systematic investigation of crystalline iron sulfides formation on electrically poised iron substrates in H2S aqueous solutions. Whereas thermodynamic calculations predict the formation of iron pyrite (FeS2) films at the conditions tested, the principal iron