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Updated: Jul 20, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
A self-assembled composited cathode coated with dual-exsolved core-shell FeNi@FeOx nanoparticles as efficient CO2
1School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Components, Harbin, Heilongjiang 150001, China.
Abstract:
Solid oxide electrolytic cells (SOECs) enable efficient electrochemical reduction of CO2 into CO, providing a sustainable solution for greenhouse gas mitigation. Nevertheless, the scarcity of stable and highly active cathode materials for the real application of SOECs is a serious challenge. Herein, a novel self-assembled composed cathode of Ni co-doped (Pr0.5Sr0.5)0.95Fe0.9Nb0.1O3-δ-Gd0.1Ce0.9O2-δ (PSFNNb-GDC) is proposed as an efficient CO2 electrolysis. The NiFe/FeOx nanoparticles with a core-shell structure are uniformly deposited onto the surface of the PSFNNb-GDC cathode. La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM)-based single cell with NiFe/FeOx@PSFNNb-GDC cathode achieve excellent performance (1.33 A cm-2 at 850 °C@1.6 V) and stability (800 °C@1.2 V) in long-term operation. The performance enhancement original from increased surface oxygen vacancies and in situ formed FeNi@FeOx core-shell nanoparticles. This research highlights the potential of rational structural design of SOECs cathode materials in advancing the field of CO2 utilization.
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