2D@3D MoS2@Ni/Co-S submicroboxes derived from prussian blue analogues for high performance supercapacitors

Designed fabrication of MoS2 hollow structures with different geometries and the comparative investigation toward capacitive properties

“…The MoS 2 hollow structure has a huge enhancement in electrochemical properties due to the higher specific surface area of the hollow structure. 11 Moreover, the holes in the MoS 2 hollow structure can provide additional channels for electrolyte ions. 12,13 Significantly, the hollow structure can effectively buffer the volume expansion during the charge/discharge process, thus alleviating the capacity degradation.…”

Co/N Co-Doped MoS2 with High Pseudocapacitive Performance for Solid-State Flexible Supercapacitors

“…Zhang et al used a cationic Co doping strategy to synthesize Co-MoS 2 and illustrated by density functional theory (DFT) calculations that the addition of Co can reduce the energy barrier of MoS 2 and greatly enhance the NH 3 production capacity of MoS 2 . However, most of the literature reports on single doping treatment of MoS 2 , − while few studies report on double doping treatment. Inspired by the above-mentioned description, we attempted to modify MoS 2 materials by doping both anions and cations (Co and N), hoping to improve the electrochemical properties of MoS 2 by using nitrogen anions to enhance the electrical conductivity of MoS 2 and cobalt cations to create special ion channels.…”

Constructing Ni–Co PBA derived 3D/1D/2D NiO/NiCo2O4/NiMn-LDH hierarchical heterostructures for ultrahigh rate capability in hybrid supercapacitors

“…A lot of research has been carried out to improve the electrochemical activity of NiMn-LDHs and LDH-based electrodes. 21 For example, Liu et al designed 1D MgCo 2 O 4 nanowires to grow 2D NiMn-LDH nanosheets on nickel foam substrates by a simple hydrothermal and calcination method, producing a core–shell nanocomposite of MgCo 2 O 4 @NiMn-LDH/NF. The results show that the 3D MgCo 2 O 4 @NiMn-LDH/NF nanocomposite exhibits an excellent specific capacity of 3757.2 F g −1 at 1 A g −1 and a good rate capability (88.32%, 3318.4 F g −1 at 8 A g −1 ) but capacity retention was only 86.9% after 6000 cycles.…”