title: Nickel-cobalt bimetallic anode catalysts for direct urea fuel cell.
abstract: Nickel is an ideal non-noble metal anode catalyst for direct urea fuel cell (DUFC) due to its high activity. However, there exists a large overpotential toward urea electrooxidation. Herein, NiCo/C bimetallic nanoparticles were prepared with various Co contents (0, 10, 20, 30 and 40 wt%) to improve the activity. The best Co ratio was 10% in the aspect of cell performance, with a maximum power density of 1.57 mW cm(-2) when 0.33 M urea was used as fuel, O2 as oxidant at 60 °C. The effects of temperature and urea concentration on DUFC performance were investigated. Besides, direct urine fuel cell reaches a maximum power density of 0.19 mW cm(-2) with an open circuit voltage of 0.38 V at 60 °C.
authors.affiliation: Department of Environmental Engineering, Laboratory of Electrochemistry and Energy Storage; State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310058, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.affiliation: Department of Environmental Engineering, Laboratory of Electrochemistry and Energy Storage; State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310058, P. R. China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Environmental Engineering, Laboratory of Electrochemistry and Energy Storage; State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310058, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Environmental Engineering, Laboratory of Electrochemistry and Energy Storage; State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310058, P. R. China.
authors.forename: Zucheng
authors.initials: Z
authors.lastname: Wu
mesh_terms: D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D006801:Humans; D009532:Nickel / Q000737:chemistry*; D010316:Particle Size; D014508:Urea / Q000737:chemistry*; D014556:Urine / Q000737:chemistry
chemical_list: D003035:Cobalt; D009532:Nickel; D014508:Urea