Self-assembled FeRu bimetallic nanocatalysts for efficient and durable mutual CO–CO2 conversion in a reversible solid oxide electrochemical cell

Wang, Jing; Zhang, Dong; Liu, Tong; Xu, Anqi; Luo, Yao; Hu, Xuelei; Wang, Yao

doi:10.1007/s40843-024-2922-8

Sci. China Mater.

2024

DOI: 10.1007/s40843-024-2922-8

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Self-assembled FeRu bimetallic nanocatalysts for efficient and durable mutual CO–CO2 conversion in a reversible solid oxide electrochemical cell

Jing Wang,

Dong Zhang,

Tong Liu

et al.

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Cited by 6 publications

References 64 publications

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Boosting Ammonia‐Fueled Protonic Ceramic Fuel Cells with RuFe Nanoparticle Exsolution: Enhanced Performance via Secondary Redox Treatment

Liu,

Di,

Liu

et al. 2024

Adv Funct Materials

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Ammonia, with high hydrogen content and carbon neutrality, is an ideal fuel for protonic ceramic fuel cells (PCFCs). However, the limited electrochemical efficiency and durability of ammonia‐based PCFCs have posed challenges for broader implementation. Herein, a novel anode material, Ni‐Ba(Zr0.1Ce0.7Y0.1Yb0.1)0.94Ru0.03Fe0.03O3‐δ (BZCYYbRF), developed by co‐doping with Ru and Fe is introduced, which promotes the exsolution of RuFe nanoparticles under reducing conditions. A secondary redox process further enhances nanoparticle redistribution, increasing catalytic activity and improving ammonia decomposition and hydrogen oxidation, as well as the charge transfer at the heterointerface, leading to a marked improvement in the electrochemical performance of the PCFC under both hydrogen and ammonia fuel conditions. A single cell utilizing BZCYYbRF as the anode achieves a peak power density of 700 mW cm⁻2 at 650 °C under NH3 fuel, with stable operation for up to 150 h. Additionally, secondary redox treatment improved performance to 807 mW cm⁻2 at 650 °C. The innovation lies in the co‐doping and redox‐driven nanoparticle exsolution strategy, significantly boosting PCFC performance and stability, positioning this anode as a breakthrough for direct ammonia fuel cells.

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Boosting Ammonia‐Fueled Protonic Ceramic Fuel Cells with RuFe Nanoparticle Exsolution: Enhanced Performance via Secondary Redox Treatment

Liu,

Di,

Liu

et al. 2024

Adv Funct Materials

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show abstract

Sr(Ti0·3Fe0.7)O3−δ-based perovskite with in-situ exsolved Fe–Ru nanoparticles: A highly stable fuel electrode material for solid oxide electrochemical cells with efficient electrocatalytic CO2 reduction ability and preferential selectivity

Han,

Wan,

et al. 2024

Journal of Power Sources

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Three-dimensional reconstruction of porous CeO2 single crystal for effective electrolysis of carbon dioxide

Ma,

Miao,

et al. 2024

Journal of Power Sources

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Self-assembled FeRu bimetallic nanocatalysts for efficient and durable mutual CO–CO2 conversion in a reversible solid oxide electrochemical cell

Cited by 6 publications

References 64 publications

Boosting Ammonia‐Fueled Protonic Ceramic Fuel Cells with RuFe Nanoparticle Exsolution: Enhanced Performance via Secondary Redox Treatment

Boosting Ammonia‐Fueled Protonic Ceramic Fuel Cells with RuFe Nanoparticle Exsolution: Enhanced Performance via Secondary Redox Treatment

Sr(Ti0·3Fe0.7)O3−δ-based perovskite with in-situ exsolved Fe–Ru nanoparticles: A highly stable fuel electrode material for solid oxide electrochemical cells with efficient electrocatalytic CO2 reduction ability and preferential selectivity

Three-dimensional reconstruction of porous CeO2 single crystal for effective electrolysis of carbon dioxide

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