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Organic carbonyl compounds are regarded as a promising cathode for green, flexible, and sustainable energy storage systems. Currently, developing an effective route for overcoming the dissolution problem of organic carbonyl compounds remains a challenge. Herein, DNTCB-functionalized graphene oxide (DNTCB-GO) nanosheets were prepared by using the covalent bonding between DNTCB and GO (DNTCB = N,N′-diamino-1,4,5,8-naphthalenetetracarboxylic...
The P2-type Na0.67Mn0.6Fe0.4O2 (NaMnFe), Na0.67Mn0.6Fe0.3Zn0.1O2 (NaMnFeZn), and Na0.67Mn0.6Fe0.2Zn0.1Ni0.1O2 (NaMnFeZnNi) are prepared using an acetate decomposition reaction and developed as promising cathode materials for high-capacity sodium-ion batteries. The XRD patterns show that Zn2+ and Ni2+ ions are successfully incorporated into the lattice of the Na-Mn-Fe-O system, and the P2-type structure...
Polyvinyl butyral-based gel polymer electrolyte films (PVB-based GPEFs) were prepared by casting method. The surface morphology and ionic conductivity of the PVB-based GPEFs were measured; cyclic voltammetry behavior, optical properties, and coloration efficiency of the devices were investigated. The SEM shows amorphous polymer matrix with interval and micropores among the molecule chains. With different...
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