MOF-derived manganese oxide/carbon nanocomposites with raised capacitance for stable asymmetric supercapacitor.

ABSTRACT: Owing to immense application potentials in electrochemical energy storages, metal organic framework (MOF)-derived metal oxide/carbon nanocomposites have attracted extensive interest of research. Although thermolysis has been widely employed to convert MOFs into various active materials, a large set of in situ changes in chemical composition, phase(s) and morphology requires delicate control over heating parameters. Through an innovative two-stage process, Mn-MIL-100 is first transformed into MnO@C by annealing at 700 °C under N₂ flow, which is then transformed into Mn₃O₄@C at 200 °C in air, while retaining a high surface area. The appropriate retention of carbon content for Mn₃O₄@C can also be easily obtained with the control of

SUBMITTER: Wang BR 

PROVIDER: S-EPMC9056813 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature