Polymethylene blue nanospheres supported honeycomb-like NiCo-LDH for high-performance supercapacitors

Composites of NiCo Layered Double Hydroxide Nanosheets and Co3S4 Nanoparticles for Asymmetric Supercapacitors

“…NiCo-LDHs have high specific capacity owing to the abundant redox reactions between bimetallic ions and the unique layered structure. But the low aggregation rate and conductivity of NiCo-LDHs during electrochemical ion storage make the capacity drop sharply, and the limited active center prevents it from reaching the theoretical value of specific capacity. − To improve the electrochemical performance of LDHs, an effective strategy is to compound nanostructured metal sulfides with LDHs to form heterojunctions, thus combining the advantages of both components to synergistically enhance the specific capacity in terms of highly exposed active sites and shortened ion transport paths. In particular, sulfides can improve their conductivity due to the reduced band gap, and the greater conductivity can support rapid electron/ion transport, thus enabling the material to obtain high-rate capabilities.…”

Tunable construction of CuS nanosheets@flower-like ZnCo-layered double hydroxide nanostructures for hybrid supercapacitors

“…6c and Table S1 in the ESI †). [72][73][74][75][76][77][78] Additionally, the capacities for NF@ZC-LDH4 were 836, 775.5, 721.6, 660, 612.7, and 500 C g −1 at the same current densities, respectively, and were larger than that of NF@CS10 (Fig. 6b).…”

Regulating the Oxygen Vacancy and Electronic Structure of NiCo Layered Double Hydroxides by Molybdenum Doping for High‐Power Hybrid Supercapacitors

“…Compared with most previously reported LDH-based materials listed in Table 1, MoNiCo-LDH-0.05/CC has a better energystorage capability. [7,9,13,31,46,[49][50][51][52][53][54] In order to deep investigate the influencing factors for the superb electrochemical performance of the electrode materials, the electrochemical active surface areas (ECSA) of MoNiCo-LDH-0.05/CC and NiCo-LDH/CC are compared. The ECSA is assessed by measuring the electric double layer capacitance (C dl ) .…”

“…In a word, the excellent energy storage performance of MoNiCo-LDH-0.05/CC is contributed by the close anchoring of MoNiCo-LDH cross-linked network nanosheets on CC substrate, facile adsorption of OHions and rapid charge transfer in the electrochemical reaction process. Compared with most previously reported LDH-based materials listed in Table1, MoNiCo-LDH-0.05/CC has a better energystorage capability [7,9,13,31,46,[49][50][51][52][53][54]. In order to deep investigate the influencing factors for the superb electrochemical performance of the electrode materials, the electrochemical active surface areas (ECSA) of MoNiCo-LDH-0.05/CC and NiCo-LDH/CC are compared.…”