摘要
采用热分解法制备以离子镀TiN0.26为基体、非贵金属SnO2+Sb2Ox为中间层和PbO2为活性层的耐酸阳极。采用XRD对其基体与表面层物相进行表征,同时用循环伏安(CV)、交流阻抗(EIS)和加速寿命试验等方法对该电极在强酸中的电极性能进行测定。结果表明:TiN0.26/SnO2-Sb2Ox/PbO2阳极的伏安电荷(91.3mC·cm-2)明显高于Ti/SnO2-Sb2Ox/PbO2(66.6mC·cm-2),说明前者的表面层活性点较多,析氧电催化性能较好;交流阻抗测试表明前者的Rf(1.62Ω·cm2)低于后者的Rf(2.69Ω·cm2),前者的导电性较好;且前者在强酸溶液中的预期使用寿命可达43h。因此TiN0.26/SnO2-Sb2Ox/PbO2电极可以作为较理想的耐酸阳极材料。
TiN0.16 and the PbO2 coating anodes with SnO2＋Sb2Ox intermediate layer were prepared by multi-arc ion plating and thermal decomposition, respectively. The crystal structure, voltammetric charge, EIS and high density （4 A/cm^2） lifetime of Ti（N0.26）/SnO2- Sb2Ox/PbO2 anode were determined, and the electrochemical properties were analyzed between TiN0.26/SnO2-Sb2Ox/PbO2 anode and Ti/SnO2-Sb2Ox/PbO2 anode. The experiment results reveal that： the cyclic voltammetry charges of the former （91.3 mC·cm^2） is higher than the later （66.6 mC·cm^2）; the EIS of the former Rf（1.62 Ω·cm^2） is lower than the later Rf（2.69 Ω·cm^2）; accelerated life of the former is longer than the later, and reached to 43 h. Therefore, TiN0.26/SnO2-Sb2Ox/PbO2 anode will be an ideal acid-proof anode.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2010年第A01期56-59,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(20771080)
关键词
渗N层
耐酸阳极
电催化活性
交流阻抗
titanium nitride-based oxide
acid-proof anode
electrocatalysis
properties
EIS
