NiMoO4@NiMnCo2O4 Heterostructure: A Poly(3,4-propylenedioxythiophene) Composite-Based Supercapacitor Powers an Electrochromic Device

• DOI: 10.1021/acsami.1c07064
• Publication Date: 2021-07-16T19:46:22Z
• Authors: Sathish Deshagani; Debanjan Maity; Aparajita Das; Melepurath Deepa
• Keywords: Electrochromic devices

The hierarchical heterostructure of NiMoO4@NiMnCo2O4 (NMO@NMCO) with furry structures NMCO juxtaposed NMO nanowires are endowed multiple electrochemically active and accessible sites for ion storage, thus delivering an ultrahigh specific capacitance 2706 F g–1, nearly two-fold times greater than that sole NMCO. Electrodeposition overlayer a highly robust electrically conducting polymer, poly(3,4-propylenedioxythiophene) (PProDOT), not only improves the energy storage performance but also assists binary oxide cathode in retaining its structural integrity during redox cycling. Coupling anode porous flaky carbon (FC) derived from groundnut shells results asymmetric supercapacitor FC//PProDOT@NiMoO4@NiMnCo2O4, which delivers outstanding 552 power density ranges 172–40 Wh kg–1 0.75–10 kW kg–1, respectively, remarkable cycle life 50 000 cycles, ∼97.8% retention, over operational voltage window 1.5 V. From application perspective, charged was connected to complementary coloring reversible electrochromic device (ECD) Prussian blue//PProDOT, ECD state transformed pale-blue deep blue hue, signaling efficient utilization stored supercapacitor. energy-saving attribute realized terms integrated visible-light modulation 39% accompanied optical transition. Deployment low-cost devices at homes commercial spaces, capable storing saving energy, is way forward, this one significant step direction.