Template-free Controlled Fabrication of NH₄MnPO₄·H₂O and Mn₂P₂O₇ Micro-Nanostructures and Study of Their Electrochemical Properties

摘要

Various NH4MnPO4H2O micro-nanostructures have been synthesized through a facile method withoutany surfactants or templates. All of the samples consist of the minimal basal unit nanosheet.Furthermore, porous micro-nanostructured manganous pyrophosphate (Mn2P2O7) materials have beenobtained by thermal decomposition of as-synthesized NH4MnPO4H2O in the air. More importantly,we have successfully explored the application of micro-nanostructured NH4MnPO4H2O and Mn2P2O7as electrochemical capacitors. The study of electrochemical measurements shows that micro- nanostructures affect their electrochemical properties. Different nano-microstructuredNH4MnPO4H2O and Mn2P2O7 samples have different electrochemical properties.