Manganese fuel cell oxygen reduction catalysts

I. Roche, K. Katuri and K. Scott, A microbial fuel cell using manganese oxide oxygen reduction catalysts, J. Appl. Electrochem. 40,2010,13-21. 

Fuel cell applications Manganese dioxide as a new cathode catalyst in microbial fuel cells [118] OMS-2 catalysts in proton exchange membrane fuel cell applications [119] An improved cathode for alkaline fuel cells [120] Nanostructured manganese oxide as a cathodic catalyst for enhanced oxygen reduction in a microbial fuel cell [121] Carbon-supported tetragonal MnOOH catalysts for oxygen reduction reaction in alkaline media [122]... 

Also for cathodic oxygen reduction in low-temperature fuel cells, platinum is indispensible as a catalyst whereas the cathodic electrocatalysts in MCFCs and SOFCs are lithiated nickel oxide and lanthanum-manganese per-ovskite, respectively. Appleby and Foulkes in the Fuel Cell Handbook (101) reviewed the fundamental work as well as the technologically important publications covering electrocatalysis in fuel cells till 1989. 

Lai-jcSr MnOs). Unlike its effect in fuel cells, platinum metal is not a very effective catalyst for metal-air batteries, especially for charging. Instead, silver has demonstrated high reduction efficiency and good stability. The most inexpensive catalyst is activated carbon, which has a very high surface area. For oxygen reduction in carbon-based air electrodes, manganese dioxide is the catalyst most extensively used. 

---