摘要
Manganese oxides are of interest as, among a number of other applications, supercapacitor materials for energy storage systems. Nsutite, a naturally occurring Manganese Oxide was studied as a possible high-volume source of materials for supercapacitor applications. X-ray diffraction and thermal analysis (DSC/TGA) measurements were carried out to characterize its physical properties, and Cyclic Voltametry and galvanostatic charge-discharge measurements were carried out to obtain its electrochemical properties. The XRD and thermal results support transitions of nsutite, upon heating which were attributed to conversion to MnO<sub>2</sub>, and to Mn<sub>2</sub>O<sub>3</sub> and eventually to Mn<sub>3</sub>O<sub>4</sub>. The electrochemical results of the as mined material show supercapacitance behaviour, suggesting that nsutite, with some heat processing, is to be a promising high-volume source of manganese oxides for supercapacitor applications.
Manganese oxides are of interest as, among a number of other applications, supercapacitor materials for energy storage systems. Nsutite, a naturally occurring Manganese Oxide was studied as a possible high-volume source of materials for supercapacitor applications. X-ray diffraction and thermal analysis (DSC/TGA) measurements were carried out to characterize its physical properties, and Cyclic Voltametry and galvanostatic charge-discharge measurements were carried out to obtain its electrochemical properties. The XRD and thermal results support transitions of nsutite, upon heating which were attributed to conversion to MnO<sub>2</sub>, and to Mn<sub>2</sub>O<sub>3</sub> and eventually to Mn<sub>3</sub>O<sub>4</sub>. The electrochemical results of the as mined material show supercapacitance behaviour, suggesting that nsutite, with some heat processing, is to be a promising high-volume source of manganese oxides for supercapacitor applications.
作者
Rahul Singhal
Jonathan Lembeck
Peter C. K. LeMaire III
Daniel Pereira
Peter LeMaire
Rahul Singhal;Jonathan Lembeck;Peter C. K. LeMaire III;Daniel Pereira;Peter LeMaire(Department of Physics & Engineering Physics, Central Connecticut State University, New Britain, CT, USA;Dynetics, 1002 Explorer Blvd, Huntsville, AL, USA;Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, USA)
