Cobalt-doped δ-MnO₂/CNT composites as cathode material for aqueous zinc-ion batteries

Abstract

Doping and compositing with conductive frameworks are adopted to increase the capacity and stability of δ-MnO2 as the electrode material for zinc ion batteries (ZIB). Co-doped MnO2/carbon nanotubes (CNTs) are...

Photo-, Thermo-, Electrochromic, Erasable Inkless Printing, Ions Detection, and UV Detector Properties of Viologen Compounds Based on Homomolybdate/Keggin POMs

“…Polyoxometalates (POMs) are a large class of classic anionic metal oxide clusters formed by transition metal ions at their highest oxidation states through oxygen connection. , Due to their excellent characteristics (including structural diversity, redox properties, and excellent stability, etc. ), POMs have rapidly developed in multiple fields, including electrochemistry, catalysis, medicine, magnetism, and biological activity. − Saturated Keggin type and octamolybdate have always been important focuses in POMs chemistry. Among them, the loss of different amounts of {MoO 6 } blocks in SiMo 12 O 40 forms a multitude of lacunary polyoxoanions, and the tamolybdate with nine isomers can provide infinite possibilities for synthesis. , Moreover, POMs-based hybrid materials have made significant progress in the field of color change.…”

Inhibition of phase transition from δ-MnO2 to α-MnO2 by Mo-doping and the application of Mo-doped MnO2 in aqueous zinc-ion batteries

“…23 Research by Wang et al showed that the doping with Co 2+ did not alter the morphology of δ-MnO 2 , but an increased interplanar lattice spacing was achieved. 24…”