(739g) PHASE Transformation of IRON OXIDE Nanowires to IRON Sulfide

Synthesis of transition metal compounds, particularly dichalogenides, has been researched extensively due to the interesting properties of these sulfide compounds. Transition metal sulfides have interesting electronic properties, which are useful in photo-electrochemistry and photovoltaics. Iron sulfide, due to its relatively low cost and favorable electronic and magnetic properties, is of considerable interest in solar applications, hydrogen generation, lithium batteries, and magnetic memory storage. In this paper, iron oxide nanowire arrays are grown on iron foil by rapid exposure to oxygen plasma. The resulting α-Fe2O3 nanowires are reacted in an H2S atmosphere to easily form iron sulfide (Fe7S8) nanowires.