摘要
在不同温度和电流密度的条件下,制备不锈钢基PbO2电极,分析了电极的析氧曲线及析氧动力学参数,进而考察了温度和电流密度对PbO2电极节能性和电催化活性的影响。结果表明:温度为80℃,电流密度为30mA/cm2时,制备的电极成分稳定,重现性好,可有效降低槽电压,电催化活性良好;在小电流密度下的主要产物为β-PbO2,大电流密度下生成部分α-PbO2;与传统的铅基阳极材料相比,该PbO2电极节能性和催化活性均有较大程度的提高。
Through the analysis of oxygen evolution curve and oxygen evolution kinetic parameters of PbO2 elec-trode on stainless steel substrate prepared by different temperature and different current density, the effect of tempera-ture and current density on the energy saving property and catalytic activity of PbO2 electrode was studied. The results show that when the temperature is 80 ℃, current density is 30 mA/cm^2 , the electrode have a stable composition and good reproducibility, the cell voltage is decreased and have a good electro-catalytic activity; The mainly products are β-PbO2 at low current density and there are partial products are β-PbO2 at high current density; The energy saving property and cat-alytic activity are highly improved compared with the traditional Pb Ag alloy anode.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2012年第5期18-21,37,共5页
Surface Technology
基金
昆明理工大学分析测试基金(2011452)
关键词
PBO2电极
析氧过电位
电催化活性
槽电压
PbO2 electrode
overpotenlial of oxygen evolution
electro-catalytic activity
cell voltage
