Rationally Designed Mn <sub>2</sub> O <sub>3</sub> –ZnMn <sub>2</sub> O <sub>4</sub> Hollow Heterostructures from Metal–Organic Frameworks for Stable Zn?Ion Storage
نویسندگان
چکیده
Mn-based oxides have sparked extensive scientific interest for aqueous Zn-ion batteries due to the rich abundance, plentiful oxidation states, and high output voltage. However, further development of is severely hindered by rapid capacity decay during cycling. Herein, a two-step metal–organic framework (MOF)-engaged templating strategy has been developed rationally synthesize heterostructured Mn2O3–ZnMn2O4 hollow octahedrons (MO–ZMO HOs) stable zinc ion storage. The distinctive composition heterostructure endow MO–ZMO HOs with abundant active sites, enhanced electric conductivity, superior structural stability. By virtue these advantages, electrode shows reversible capacity, impressive rate performance, outstanding electrochemical Furthermore, ex situ characterizations reveal that charge storage mainly originates from highly Zn2+ insertion/extraction reactions.
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2021
ISSN: ['1521-3773', '1433-7851', '0570-0833']
DOI: https://doi.org/10.1002/ange.202113487