Enhanced Rate Capability in B-Site High-Entropy Perovskite Oxide Ceramics: The Case of La(Co<sub>0.2</sub>Cr<sub>0.2</sub>Ni<sub>0.2</sub>Ga<sub>0.2</sub>Ge<sub>0.2</sub>)O<sub>3</sub>.
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ABSTRACT: This study employed the solid-state method to prepare perovskite-type high-entropy oxide materials La(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 and La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 with equimolar ratios at the B-site and explored the effects of sintering temperature on the phase structure and electrochemical properties of high-entropy oxide ceramics. The results show that after sintering at 1300°C, both samples exhibit orthorhombic perovskite structures. Both have a relative density of >97%, while La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 has a significantly larger grain size. Using these materials as electrodes, the c
SUBMITTER: Mok BH
PROVIDER: S-EPMC12429518 | biostudies-literature | 2025 Aug
REPOSITORIES: biostudies-literature
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