Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6607883 | Electrochimica Acta | 2016 | 7 Pages |
Abstract
Nickel-cobalt nanowire arrays (Ni-Co NWAs) electrode is prepared by one-step galvanostatic electrodeposition with a polycarbonate membrane as the template. By adjusting the Co proportion in the Ni and Co bath solution into 10%, the optimal Ni-Co NWAs electrode in terms of relatively lower onset potential and highest current density towards urea electro-oxidation is obtained. Its catalytic performance is investigated by constructing single direct urea/hydrogen peroxide (H2O2) fuel cell. Results show that a peak power density of 7.4 mW cmâ2 and an open circuit voltage of 0.92 V are achieved at room temperature when 9.0 mol Lâ1 KOH and 0.33 mol Lâ1 urea are used as the anolyte, H2SO4 and H2O2 as the catholyte. Additionally, the urea/H2O2 fuel cell also demonstrates excellent stability during short term duration test.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Fen Guo, Kui Cheng, Ke Ye, Guiling Wang, Dianxue Cao,