Photo by a2eorigins from unsplash
It is highly attractive to design and develop earth-abundant electrocatalysts toward high-efficiency water oxidation electrocatalysis in alkaline media. In this communication, we report the in situ hydrothermal sulfidization preparation of… Click to show full abstract
It is highly attractive to design and develop earth-abundant electrocatalysts toward high-efficiency water oxidation electrocatalysis in alkaline media. In this communication, we report the in situ hydrothermal sulfidization preparation of a hierarchical CuCo2S4 nanoarray on copper foam (CuCo2S4/CF) from its CuCo2-hydroxide nanowire array precursor. When used as a 3D catalyst electrode for water oxidation, the as-prepared CuCo2S4/CF is superior in catalytic activity, demanding overpotentials of only 259 and 295 mV to achieve 60 and 100 mA cm-2 in 1.0 M KOH, respectively. Moreover, it also shows strong electrochemical durability with high turnover frequency values of 0.069 and 0.390 mol O2 s-1 at overpotentials of 300 and 400 mV, respectively.
Journal Title: Chemical communications
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!