Concepedia

Vertically aligned nanocomposite La<sub>0.8</sub>Sr<sub>0.2</sub>CoO<sub>3</sub>/(La<sub>0.5</sub>Sr<sub>0.5</sub>)<sub>2</sub>CoO<sub>4</sub> cathodes – electronic structure, surface chemistry and oxygen reduction kinetics

Wen Ma, Jae Jin Kim, Takeshi Daio, Yener Kuru, Zhuhua Cai, Yan Chen, Kazunari Sasaki, Harry L. Tuller, Bilge Yildiz

Journal of Materials Chemistry A · 2014 · 90 citations · 50 references

DOI

Concepts

Abstract

A vertically aligned nanocomposite cathode, made of La<sub>0.8</sub>Sr<sub>0.2</sub>CoO<sub>3</sub>/(La<sub>0.5</sub>Sr<sub>0.5</sub>)<sub>2</sub>CoO<sub>4</sub>, increases oxygen reduction kinetics by 10-fold and has better surface stability compared to its single phase constituents at 320–400 °C.

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