Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6609238 | Electrochimica Acta | 2016 | 39 Pages |
Abstract
Urea peroxide as a solid-state fuel instead of liquid hydrogen peroxide is electro-catalytic oxidized by nickel nanowire arrays (NWAs) electrode. Nickel NWAs electrode is prepared by galvanostatically electrodepositing nickel into the pores and over-plating on the surface of polycarbonate template (PCT) from nickel bath solution. The NWAs are obtained after dissolving PCT in methylene chloride. Results show that urea peroxide decomposes into hydrogen peroxide and urea in aqueous solutions, then is electro-oxidized via two processes: i, hydrogen peroxide electro-oxidation at lower potential region; ii, both hydrogen peroxide and urea electro-oxidation at higher potential region. The onset oxidation potential and current density of urea peroxide electro-oxidation in 6.0 mol Lâ1 KOH and 1.0 mol Lâ1 urea peroxide are ca. -0.2 V and 700 mA cmâ2 at 0.6 V, respectively. The nickel NWAs electrode demonstrates excellent stability for urea peroxide electro-oxidation under different polarization potentials.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Fen Guo, Ke Ye, Mengmeng Du, Kui Cheng, Yinyi Gao, Guiling Wang, Dianxue Cao,