title: Enhanced oxygen reduction activity and solid oxide fuel cell performance with a nanoparticles-loaded cathode.
abstract: Reluctant oxygen-reduction-reaction (ORR) activity has been a long-standing challenge limiting cell performance for solid oxide fuel cells (SOFCs) in both centralized and distributed power applications. We report here that this challenge has been tackled with coloading of (La,Sr)MnO3 (LSM) and Y2O3 stabilized zirconia (YSZ) nanoparticles within a porous YSZ framework. This design dramatically improves ORR activity, enhances fuel cell output (200-300% power improvement), and enables superior stability (no observed degradation within 500 h of operation) from 600 to 800 °C. The improved performance is attributed to the intimate contacts between nanoparticulate YSZ and LSM particles in the three-phase boundaries in the cathode.
authors: Division of Fuel Cells, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China.
authors: Xiaomin
authors: X
authors: Zhang
authors: Li
authors: L
authors: Liu
authors: Zhe
authors: Z
authors: Zhao
authors: Baofeng
authors: B
authors: Tu
authors: Dingrong
authors: D
authors: Ou
authors: Daan
authors: D
authors: Cui
authors: Xuming
authors: X
authors: Wei
authors: Xiaobo
authors: X
authors: Chen
authors: Mojie
authors: M
authors: Cheng
mesh_terms: D011211:Electric Power Supplies; D004566:Electrodes; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053758:Nanoparticles; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D010316:Particle Size; D015040:Zirconium / Q000737:chemistry*
chemical_list: D010087:Oxides; D015040:Zirconium; C028541:zirconium oxide
keywords: Solid oxide fuel cells; cathode; lanthanum strontium manganite - yittria-stabilized zirconia; nanostructure; oxygen reduction reaction