混凝土阴极保护辅助阳极的电化学性能研究  

Study on the Electrochemical Performance of MMO Titanium Mesh Anode

作　　者：房毅[1,2] 陈龙[1,2] 方翔[1,2] 

机构地区：[1]中交四航工程研究院有限公司,广东广州510230 [2]水工构造物耐久性技术交通运输行业重点实验室,广东广州510230

出　　处：《广州化工》2012年第23期63-64,69,共3页GuangZhou Chemical Industry

摘　　要：利用混凝土模拟液,采用恒电流极化以及循环伏安法,研究了常用于混凝土外加电流阴极保护的混合金属氧化物涂层(MMO)钛网阳极的电化学性能,并对阳极采用了加速寿命测试。结果表明:选用的MMO阳极,在含NaCl的混凝土孔模拟液中有较好的耐蚀性和工作稳定性,析氧电位在1.2 V左右,在工作电流为108 mA/m2时使用寿命可达到75年以上。The electrochemical performance of MMO titanium mesh anodes was studied by using constant current po-larization and cyclic voltammetry in concrete pore simulation solution （SPS） with NaC1 addition. The accelerated life tes- ting of MMO titanium mesh anode were also carried out. Results showed that the MMO anode had a stable working per-formance, and oxygen evolution potential of MMO anode was about 1.2 V, the expected life of MMO anode can reach 75 years when its working current rating was 108 mA/m^2.

关 键 词：外加电流阴极保护 金属氧化物涂层钛基阳极 电化学性能 

分 类 号：TU5[建筑科学—建筑技术科学]