Smart Dual-Exsolved Self-Assembled Anode Enables Efficient and Robust Methane-Fueled Solid Oxide Fuel Cells.

ABSTRACT: Perovskite oxides have emerged as alternative anode materials for hydrocarbon-fueled solid oxide fuel cells (SOFCs). Nevertheless, the sluggish kinetics for hydrocarbon conversion hinder their commercial applications. Herein, a novel dual-exsolved self-assembled anode for CH₄ -fueled SOFCs is developed. The designed Ru@Ru-Sr₂ Fe_1.5 Mo_0.5 O_6-δ (SFM)/Ru-Gd_0.1 Ce_0.9 O_2-δ (GDC) anode exhibits a unique hierarchical structure of nano-heterointerfaces exsolved on submicron skeletons. As a result, the Ru@Ru-SFM/Ru-GDC anode-based single cell achieves high peak power densities of 1.03 and 0.63 W cm^-2 at 800 °C under humidified H₂ and CH₄ , surpassing most reported perovskite-base

SUBMITTER: Hu F 

PROVIDER: S-EPMC10787062 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature