An ammonia-induced universal synthesis approach for manganese based layered oxides.

ABSTRACT: Manganese-rich layered transition-metal oxides are of great interests as positive electrodes for sodium-ion batteries considering their high specific capacity and operating voltage. However, it remains challenging to synthesize layered transition-metal oxides with high stability and rapid ion-migration kinetics. Herein, we develop a straightforward and universal synthesis approach for P2-type layered transition-metal oxides by simply updating the conventional solid-state reaction with only additional dicyandiamide introduced. We reveal the ammonia released successfully restrains the irreversible oxygen redox for stabilizing cationic migration and decreases the crystallization temperature for high-quality structure formation. The effectively suppressed Jahn-Teller distortion and facilitated

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC12783728 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature