Enhanced ionic diffusion interface in hierarchical metal-organic framework@layered double hydroxide for high-performance hybrid supercapacitors

Abstract

Layered double hydroxides (LDHs) with abundant accessible active sites are promising electrode materials for hybrid supercapacitor (HSC) due to their ultrahigh theoretical capacitances. However, the structural agglomeration of LDH lead to poor rate capability

Exploring the Redox Activity of a Transition-Metal-Intercalated 1,3,5-Benzenetricarboxylic Acid Organic–Inorganic Network for Potential Battery–Supercapacitor Applications

“…The device results in an exceptional E d of 60 Wh kg –1 and a P d of 2550 W kg –1 . Figure c displays the Ragone plot of Mn-MOF//AC with previous comparable literature. − This study revealed exceptional outcomes compared to the mentioned reported literature. Figure d shows the Coulombic efficiency and stability of the supercapattery device after 1000 galvanostatic cycles.…”

NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors

“…The maximum energy of NiCo-LDH-1//AC is 59.0 W h kg −1 when the power density is 935.7 W kg −1 . Compared with other similar supercapacitors, such as HKUST-1@CoNi-LDH//AC, 57 Ni 2 P/NiGa 2 O 4 /NiGa-LDH//Co 3 O 4 -C, 58 Co-NiMn-LDH@V 2 C//V 2 C, 59 NiMn-LDH@CuO//AC, 60 CoAlNi-LDH-NR//AC, 61 CoS x /Ni–Co LDH//AC, 62 NiAl-LDH-OA-2//AC, 63 NiCoP@NiCo-LDH//AC, 64 CCCH@NiCo-LDH@Au-CuO/Cu//VN, 65 NiCo 2 Al-LDH//CC@ZPC, 66 NiFe-LDH/NiOOH//MoS 2 /rGO, 67 and NiAl-LDH/rGO//AC, 68 the energy storage performance of the NiCo-LDH-1//AC hybrid supercapacitor is significantly higher. The detailed parameters of the comparison are listed in Table S1 †…”

Electrolytic Hydrogen Evolution Study of Porous Tungsten Carbide‐Loaded Pt Derived from ZIFs

“…And it can be seen that the distribution of Co and N elements is mainly the same as the W elements, this also once again verifies that after using Co@ZIFs to adsorb the W element, The W element can be uniformly distributed in Co@ZIFs without forming a large number of W element agglomeration, which verifies the superiority of this method to prepare WC. [17] Figure 3(b) shows the morphological condition of Pt/WC-3. It can be seen that the overall morphology is preserved after Pt loading, and the large chunky particles on Pt/WC-3 should be WC loading Pt particles (as the WC chunky particles in Figure 3(a).…”