高等学校化学学报2011，Vol.32Issue(10)：2382-2386,5.
以泡沫镍载NiCo2O4纳米线阵列为阴极催化剂的Al-H2O2半燃料电池
Al-H2O2 Semi-fuel Cell Using Ni Foam Supported NiCo2O4 Nanowire Arrays as Cathode
摘要
Abstract
A A1-H2O2 semi-fuel cell using Ni foam supported NiCo2O4 nanowire arrays as cathode was reported. Ni foam supported-NiCo2O4 nanowire arrays were prepared by a template-free growth method, and demonstrated that NiCo2O4 nanowires grow almost vertically from the surface of foamed Ni substrate by scanning electron microscopy (SEM). The effects of concentrations of H2O2, flow rate of electrolyte as well as operation temperature on the cell performance were investigated. The cell exhibited an open circuit voltage of about 1. 40 V; peak power densities of 79 and 120 mW/cm2 at current ensities of 98 and 172 mA/cm2 and a cell voltage of 0. 80 V and 0. 70 V operating at room temperature and 320 K, respectively, using aluminium sheet as anode fuel and 0. 6 mol/L H2O2 as oxidant. The current density at 0. 7 V and voltage 75 mA/cm2 remained nearly constant within a5000 s test period, the Ni foam supported NiCo2O4 nanowire arrays electrode exhibits superior activity, stability, and mass transport property for H2O2 electroreduction.关键词
泡沫镍载NiCo2O4纳米线阵列/Al-H2O2半燃料电池/阴极催化剂Key words
Ni foam supported NiCo2O4 nanowire array/ Al-H2O2 semi-fuel cell/ Cathode catalyst分类
化学化工引用本文复制引用
田永梅,雷婷,王贵领,曹殿学..以泡沫镍载NiCo2O4纳米线阵列为阴极催化剂的Al-H2O2半燃料电池[J].高等学校化学学报,2011,32(10):2382-2386,5.基金项目
国家自然科学基金(批准号:20973048)资助. （批准号:20973048）
