Oxygen-vacancy europium-doped MnO2 ultrathin nanosheets used as asymmetric supercapacitors

Surface modification of a screen-printed electrode with a flower-like nanostructure to fabricate a guanine DNA-based electrochemical biosensor to determine the anticancer drug pemigatinib

“…In addition, europium has been shown to signicantly improve both the catalytic activity and thermal stability of MnO 2 . [43][44][45] As demonstrated earlier, the present study involved the fabrication of Eu-embedded MnO 2 thin lm electrodes for achieving defect-enriched MnO 2 NPs for enhancing the surface area of the host and improving the charge-transfer features. In addition, this study is, to the best of our knowledge, the rst electrochemical study of pemigatinib-ds-DNA interaction in a DNA biosensor using the three-dimensional carnation owerlike Eu 3+ :b-MnO 2 nanostructure (3D CF-L Eu 3+ :b-MnO 2 ) and polyaniline (PA).…”

“…In addition, europium has been shown to significantly improve both the catalytic activity and thermal stability of MnO 2 . 43–45…”

Flexible All-Solid-State Asymmetric Supercapacitors Based on PPy-Decorated SrFeO3−δ Perovskites on Carbon Cloth

“…Electronic devices are facing higher requirements to adapt to different environments. − As wearable and portable electronic devices develop, new challenges such as a mechanically robust, flexible, and high power density arise for the corresponding energy supply system. , Supercapacitors offer higher power density and better cycle life than traditional batteries. , However, the low energy density restricts their practical application in powering portable devices. − It is well-known that electrodes with advanced mechanical and electrochemical features are crucial for flexible supercapacitors. Various strategies, such as morphological control, porous structure construction, and composite design, have been widely investigated and applied to enhance the electrochemical performance of flexible electrode materials. − …”

Optimization of oxygen evolution electrocatalytic activity of metal oxide nanosheet via surface modification

“…[18][19][20][21] These unique features of the 2D NS morphology make MnO 2 NS a promising candidate material applicable as electrocatalysts and electrodes for secondary batteries and supercapacitors. [22][23][24] In comparison with noblemetal-based electrocatalysts, the electrocatalyst functionality of 2D MnO 2 NSs remains much poorer. In this MnO 2 electrocatalyst, reversible redox process of Mn 2+ $ Mn 3+ $ Mn 4+ species occurs during the OER process.…”

“…Atomically thin two‐dimensional (2D) metal oxide nanosheets (NSs) are expected to be beneficial for improving catalyst performance owing to their huge ratio of surface‐to‐volume and high tunability of the surface bonding character 18–21 . These unique features of the 2D NS morphology make MnO 2 NS a promising candidate material applicable as electrocatalysts and electrodes for secondary batteries and supercapacitors 22–24 . In comparison with noble‐metal‐based electrocatalysts, the electrocatalyst functionality of 2D MnO 2 NSs remains much poorer.…”