Overview
Titanium anodes with titanium metal coatings are advanced electrochemical components where a titanium substrate is coated with catalytic metal oxides (e.g., ruthenium, iridium) to enhance performance. These anodes revolutionized industrial electrolysis by combining titanium's corrosion resistance with the catalytic properties of noble metal coatings. First developed in the 1960s as Dimensionally Stable Anodes (DSA), they replaced graphite anodes in chlor-alkali production. Today, they serve critical roles across industries due to their stability in aggressive environments, energy efficiency, and ability to operate at high current densities without significant degradation.
Physical and Chemical Properties
The titanium substrate provides structural integrity with a density of 4.5 g/cm³ and melting point of 1668°C, while the oxide coating (typically 5-20 μm thick) determines electrochemical behavior. Common coatings include mixed metal oxides (RuO2-IrO2-Ta2O5) that exhibit low overpotential for chlorine/oxygen evolution. These anodes demonstrate exceptional pH stability (0-14) and temperature resistance (up to 80°C continuous operation). The coating's porosity and crack structure increase active surface area, achieving current efficiencies of 95-98% in chlorine generation. Their electrical conductivity ranges from 10-100 S/cm depending on coating composition and calcination temperature.
Main Applications
In the chlor-alkali industry, these anodes are indispensable for chlorine production, offering 5-10 year lifespans compared to months for traditional anodes. They enable membrane cell technology with 30% energy savings over mercury cells. Water treatment applications include electrochemical oxidation of organic pollutants and disinfection via hypochlorite generation. For cathodic protection systems, coated titanium anodes protect offshore structures and pipelines with current outputs up to 1500 A/m². Emerging uses include electrowinning of non-ferrous metals and fuel cell components.
Safety and Storage
While titanium itself is biocompatible, some coatings may release metal ions under extreme conditions. Proper handling requires PPE to prevent coating abrasion, which could expose the titanium substrate to corrosive attack in chloride environments. Storage should prevent mechanical damage to the active surface—stacking without separators is prohibited. Humidity control (<60% RH) prevents moisture absorption that could affect coating adhesion. For long-term storage (>6 months), nitrogen-purged packaging is recommended to prevent oxidation of catalytic coatings.
B2B Procurement Guide
Key specifications to define include: coating composition (e.g., RuO2 30%-IrO2 70%), current density rating (typically 2-10 kA/m²), and substrate thickness (1-3 mm). For seawater applications, iridium-rich coatings are essential. Quality verification should include accelerated life testing (e.g., 1A/cm² in sulfuric acid) and coating adhesion tests. Lead times for custom sizes range from 2-8 weeks. Bulk purchases (100+ m²) may secure 15-25% discounts. Always request certified material test reports for traceability of coating materials.
Related Manufacturers
- 主营：铁碳微电解填料、臭氧催化剂填料、硫自养脱氮填料、DSA阳极、芬顿催化剂、次氯酸钠发生器、电催化氧化设备、臭氧催化氧化塔、电絮凝、芬顿流化床、芬顿氧化塔
- 主营：钛阳极、mmo涂层钛阳极、电镀钛阳极、次氯酸钠发生器钛阳极、二氧化铅钛阳极、污水处理用钛阳极、蚀刻液回收铜用钛阳极
- 主营：钛阳极、钛电极、涂层阳极、钌铱阳极、铱钽阳极、铂金阳极
- 主营：铜鼻子、锌合金、铝合金、环形阳极、电缆线、锌带阳、铜接头、电位仪、支撑杆、标识桩、压重袋、保护器、测试桩、避雷针、连接器、镁合金、纯锌带、玻璃纤、补伤棒、升降杆、极化探头、定位系统、穿越支架、热熔胶棒、防腐胶棒
- 主营：阴极保护测试桩、智能测试桩、阴极保护材料、镁合金牺牲阳极、锌合金牺牲阳极、镁阳极、带状锌阳极、预包装锌阳极、铝合金牺牲阳极、柔性阳极、预包装镁阳极、深井阳极、预包装高硅铸铁阳极、火花间隙保护器、固态去耦合器、手动升降避雷针、电动升降避雷针、玻璃钢避雷针、平衡压袋、管道绝缘支架、雷电预警系统、智能电位采集仪、参比电极、恒电位仪
- 主营：不锈钢毛细管、镀铜圆钢、不锈铁棒材、镍钛记忆合金丝、钛棒、钛合金棒、钛板、钛管、不锈铁板材、N6镍板、ni200棒材、c276哈氏合金棒、英科耐尔718棒材、镍管、耐腐蚀管材
- 主营：智能测试桩、阴极保护测试桩、锌带、镁合金牺牲阳极、铝合金牺牲阳极、锌合金牺牲阳极、带状锌阳极、深井阳极、预包装高硅铸铁阳极、阳极地床、阳极接线箱/汇流箱、MMO柔性阳极、固态去耦合器、恒电位仪、手动/电动升降避雷针、气动升降杆、手自一体升降避雷针、玻璃钢避雷针、GH环形独立接闪杆、机场易折易碎杆、KHX50矿用避雷器、火花间隙保护器、等电位连接器、阴极保护防爆接线箱、便携式硫酸铜参比电极
- 主营：监测仪、避雷器、避雷针、防雷箱、防雷器、热焊剂、焊接工具、防护系统、拒雷装置、避雷装置、防雷设备、景区防雷、防雷检测、监测终端、阻雷装置、信号铁塔、溶焊模具、防雷单元、通信模块、防雷元件、石墨模具、热熔焊粉、涌保护器、消雷装置、防雷装置
- 主营：TZM、黄金、白银、铂金、钨镍铁钨镍铜、钨铜合金、钨铼合金、靶材、坩埚、棒杆、管件、高温钼镧合金、板片带箔、螺丝钉螺母垫片、发热体加热器
- 主营：电解型次氯酸钠发生器、次氯酸钠电解槽、消毒电极片、钛电极钛阳极、钛涂钌电极、钛镀铂阳极、mmo阳极带、mmo管状阳极、阴极保护mmo辅助阳极、铱钽涂层阳极板、钛镀铱阳极、钛镀钌铱电极板、钛涂层阳极板、电催化氧化钛电极、镀铂钛网阳极、钌钛网、电解水消毒电解片、循环水电解除垢机
- 主营：阴极保护测试桩、硫酸铜参比电极、极化探头、镁阳极、铝阳极、锌阳极、深井阳极、高硅铸铁阳极、贵金属氧化物阳极、MMO阳极带、带状镁阳极、固态去耦合器、阴极保护恒电位仪、防爆接线箱、极化试片、雷电预警系统、闪电定位仪、玻璃钢避雷针、升降杆避雷针、锌带、手摇升降杆、电动升降杆
- 主营：测试桩、防爆接线箱、恒电位仪、镁阳极、锌阳极、铝阳极、深井阳极、高硅铸铁阳极、带状锌阳极、柔性阳极、钛管阳极、固态去耦合器、火花间隙保护器、极化探头、ER腐蚀速率探头、电位采集仪、UDL2数据记录仪、平衡压袋、参比电极、玻璃钢避雷针、升降杆、避雷塔、通讯线路避雷器、机场易折杆、双极天线支撑杆
- 主营：表面处理、电镀电解、果蔬消毒机、钛电极、柔性阳极、钛阳极棒、钛阳极组、钛阳极管、船体用阳极、镀铂钛阳极、铂金钛阳极网、水处理用钛阳极、阴极保护用阳极、水处理用钛电极、盐氯机用钛电极、电池电极铜箔、次氯酸钠发生器、电解槽
- 主营：辅助钛、钛阳极、钛电极、钛基阳极、镀铂钛板、氧化钌钛网、氧化钌钛板、氧化铱钛管防腐、镀铂铌网、铂瑞电极
- 主营：循环水、电解槽、edi模块、钛阳极、钛电极、氢氧机、燃料电池、富氢水杯、旋流电极、电解泳池水、氢氧发生器、电解水生成器、二氧化氯发生器、次氯酸钠发生器