Lead Dioxide Coated Titanium Electrode
Lead Dioxide Coated Titanium Electrode: The Robust, Cost-Effective Anode for High-Oxygen & Acidic Electrolysis
- Lead Dioxide Coated Titanium Electrode (PbO₂/Ti or Ti/PbO₂) delivers exceptional oxygen evolution performance with overpotential ≥1.70–1.98 V, making it ideal for harsh sulfuric/nitric acid environments and high-current processes.
- Service life of 3–8 years (or longer with optimized coatings) at current densities up to 5,000–10,000 A/m², with extremely low coating wear and no anode sludge compared to traditional lead alloys.
- 30–50% lower total cost of ownership vs. Ir-Ta MMO or platinum anodes while matching or exceeding performance in electrowinning, perchlorate production, and advanced wastewater oxidation.
- Ti Time Company – China’s pioneering PbO₂ titanium anode specialist since 2010 – offers multi-layer β-PbO₂ + doped coatings on mesh, plate, tube, and basket substrates with full third-party testing and recoating services.
Top 5 FAQs About Lead Dioxide Coated Titanium Electrode
- Why choose PbO₂ coated titanium over Ir-Ta MMO or platinum anodes? PbO₂/Ti provides comparable or superior oxygen overpotential (1.8–1.98 V) at 1/3–1/2 the cost, with proven 5–8 year life in sulfate electrowinning. It eliminates precious metal dependency while delivering higher current tolerance and zero sludge — the preferred choice when budget and robustness matter most.
- What is the real-world lifespan of a Lead Dioxide titanium electrode? In copper/zinc electrowinning (100–150 g/L H₂SO₄, 300–500 A/m², 40–60°C), Ti Time’s advanced multi-layer PbO₂ electrodes routinely achieve 5–8 years continuous operation — verified in over 50 hydrometallurgy plants across China, Africa, and South America.
- Is PbO₂ titanium anode safe for wastewater treatment and organic oxidation? Yes. Its ultra-high oxygen overpotential enables efficient hydroxyl radical and ozone generation for degrading phenols, COD, ammonia nitrogen, and persistent pharmaceuticals. When properly formulated (e.g., with F-doped or Ce-doped β-PbO₂), it shows negligible lead leaching (<0.01 mg/L), meeting strict EU and EPA discharge standards.
- Can the titanium substrate be reused after coating failure? Absolutely — the greatest economic advantage. After PbO₂ depletion, Ti Time strips and recoats the original substrate at 25–35% of new anode cost, enabling 6–10 total life cycles (economic life >30 years).
- What customization options does Ti Time provide for PbO₂ electrodes? We offer α+β PbO₂ multi-layer systems, F-doped/Ce-doped variants for extra longevity, substrate forms (mesh for flow-through, plate for foil, tube for perchlorate), intermediate SnO₂-Sb or TiO₂-Ni layers for perfect adhesion, and full basket/rod assemblies for electrowinning tanks — all with SEM/EDS/XRD certification.
Lead Dioxide Coated Titanium Electrode: The Proven Workhorse for Oxygen-Evolution & Acidic Processes
Authoritative Guide from Ti Time Company, China’s PbO₂ Anode Innovator
For decades, industries requiring powerful oxygen evolution in aggressive acidic media — hydrometallurgy, perchlorate/chlorate production, hard chrome plating, and advanced oxidation wastewater treatment — have relied on Lead Dioxide Coated Titanium Electrodes (PbO₂/Ti). Combining titanium’s dimensional stability and mechanical strength with β-lead dioxide’s extraordinary oxygen overpotential and oxidation power, these anodes deliver performance that precious-metal MMO coatings struggle to match at viable cost.
The Technical Edge of Modern PbO₂/Ti Anodes
Today’s electrodes go far beyond simple electrodeposition. Ti Time employs a three- or four-layer architecture:
- Titanium substrate (Gr.1/Gr.2, mesh or plate)
- Conductive intermediate barrier (SnO₂-Sb₂O₅ or TiO₂-Ni) to prevent passivation
- Dense α-PbO₂ interlayer for perfect adhesion
- Outer active β-PbO₂ layer — often doped with F⁻, Ce⁴⁺, or Bi⁵⁺ for enhanced conductivity and lifetime
This structure yields:
- Oxygen overpotential: ≥1.85–1.98 V (vs. SCE) in 150 g/L H₂SO₄
- Current density capability: 500–10,000 A/m²
- Coating adhesion: Grade 1 (ASTM B487 scotch tape + bend test)
- Lead leaching: <0.01 mg/L in long-term testing
- Service life: 5–8+ years in electrowinning, 3–5 years in high-oxidation wastewater
Performance Comparison: PbO₂/Ti vs. Alternatives
| Parameter | Ti Time PbO₂/Ti | Ir-Ta MMO | Lead-Silver Alloy | Platinum/Ti |
|---|---|---|---|---|
| Oxygen Overpotential (150 g/L H₂SO₄) | 1.85–1.98 V | 1.45–1.65 V | ~1.6 V | 1.70–1.85 V |
| Service Life (EW, 400 A/m²) | 5–8 years | 8–12 years | 1–2 years | 4–6 years |
| Relative Cost (per m²) | 1× | 3–4× | 0.6× (but high maintenance) | 8–10× |
| Anode Sludge / Contamination | Virtually zero | Zero | High | Zero |
| Max Current Density | 10,000 A/m² | 2,000–5,000 A/m² | 500 A/m² | 2,000 A/m² |
| Recoating Feasibility | Excellent (25–35% cost) | Moderate | Not possible | Expensive |
Real-World Applications That Trust PbO₂/Ti
- Hydrometallurgical Electrowinning – Copper, zinc, nickel, cobalt recovery in sulfate systems (zero sludge = ultra-pure cathode)
- Electrolytic Copper Foil (6–12 μm) – High-current, low-voltage operation for battery-grade foil
- Perchlorate, Chlorate & Persulfate Production – Industry standard for >30 years
- Advanced Wastewater Treatment & Electro-Fenton – Destruction of refractory organics, dyes, landfill leachate
- Hard Chrome & Decorative Chromium Plating – Replacing toxic lead anodes with environmentally compliant alternative
- **Ozone Generation & Electrochemical Synthesis – High oxygen overpotential = maximum ozone yield
Ti Time Company – Setting the Standard in PbO₂ Titanium Technology
Since 2010, Ti Time Company has led China’s PbO₂ anode revolution from our Baoji headquarters. We operate dedicated PbO₂ coating lines with proprietary fluoride-ion-modified and rare-earth-doped formulations that extend life 40–60% beyond conventional electrodes.
Every PbO₂ titanium electrode includes:
- Full coating analysis (SEM/EDS/XRD)
- Accelerated life test report (>80,000 h equivalent per ASTM B865 modified)
- 5–8 year performance warranty
- Lifetime recoating & substrate repurchase program
From 5-piece laboratory orders to 200-ton electrowinning projects, Ti Time delivers unmatched technical support, fastest lead times, and the most cost-effective high-performance PbO₂ anodes on the market.
Ready to eliminate anode sludge, slash energy costs, and extend maintenance intervals? Contact Ti Time today for a free application assessment and quotation.
.Contact: info@titimecn.com
Website: www.titime.com
