Chi 7081c

The synthesized CuO@MnO₂ and CuO@MnO₂/NMWCNT composite materials were characterized using Raman, XRD, SEM, SEM–EDS, TEM, and CV analyses for supercapacitor application. XRD results of the composite materials were obtained using a Rigaku Rotaflex (RU-200B) X-ray diffractometer. The composite materials were analyzed using a He–Ne laser beam in the RM 200 Raman spectral microscope, and the morphological properties of the composite samples were determined using FE-SEM (JEOL) and SEM–EDX analyses. The electrochemical properties of the composite materials were determined based on CV, GCD and EIS results via CHI 7081C (CH Instruments, workstation Inc., USA).

The synthesized Co₃O₄@N-MWCNT composite material was analysed by using a He–Ne laser beam in RM 200 Raman spectral microscopy. XRD results were characterized via a Rigaku Rotaflex (RU-200B) X-ray diffractometer. The morphological properties and SAED pattern of the composite samples were studied by FE-SEM (Hitachi S-48000), FE-TEM; JEOLJEM-2010F. Thermo Scientific, USA) combined with an Al Kα source (100 to 3 keV) by X-ray photoelectron spectroscopy examination of the composite elemental composition. CHI 7081C (CH Instruments, workstation Inc., USA) electrochemical characterization via a three-electrode configuration for supercapacitor study.