A Ni-doped Mn-MOF decorated on Ni-foam as an electrode for high-performance supercapacitors

Bimetal Metal–Organic Framework-Derived Ni–Mn@Carbon/Reduced Graphene Oxide as a Cathode for an Asymmetric Supercapacitor with High Energy Density

“…As shown, the well-paired peaks can be observed, implying a pair of redox reactions inside of the transition metals with a favorite potential and the highly reversible oxidation and reduction during the charge and discharge procedures . The possible redox reactions inside the Ni–Mn@C/rGO electrode are described below ,− as the scan rate rises along 6, 10, 15, 20, 25, and 30 mV. The peak shift is also obviously occurring when the oxidation peak shifts along 0.431, 0.447, 0.464, 0.478, 0.492, and 0.503 V and the reduction peak is altered along 0.220, 0.210, 0.200, 0.191, 0.183, and 0.177 V, respectively, suggesting the diffusion-controlled process.…”

“…As shown, the well-paired peaks can be observed, implying a pair of redox reactions inside of the transition metals with a favorite potential and the highly reversible oxidation and reduction during the charge and discharge procedures . The possible redox reactions inside the Ni–Mn@C/rGO electrode are described below ,− Ni + 2 HO − ↔ Ni false( normalOH false) 2 + 2 e − Ni false( normalOH false) 2 + HO − ↔ NiOOH + H 2 O + e − Mn false( normalII false) s + OH − ↔ Mn false( normalII false) false( normalOH false) ad + e − Mn ( II ) s + OH − ↔ Mn false( normalIII false) …”

Structure–property–performance relationship of vanadium- and manganese-based metal–organic frameworks and their derivatives for energy storage and conversion applications

“…In 2022, a study by Liu et al focused on Ni-doped Mn-MOF as electrode materials used in supercapacitors, revealing a 779.6 C g −1 specic capacity and a 1676.6 F g −1 specic capacitance at 1 A g −1 . 238 A new cathode material based on core@shell structure was introduced as a positive electrode in asymmetric SCs by enfolding (Mn −1 )Co x S y nanosheet arrays derived from MOFs in specic (Ni-Cu)OHs marigold ower-like nano reservoirs. The ultrahigh 2.19 mA h cm −2 areal capacity was delivered by the multi-component (Mn −1 )Co x S y @(Ni-Cu)OHs core@shell nanosheet arrays at 1 mA cm −2 .…”

Advances in Mn‐Based MOFs and Their Derivatives for High‐Performance Supercapacitor

“…[79] In addition to the two common ligands mentioned above, other organic ligands containing carboxyl groups can also form various Mn-MOFs for energy storage materials through the coordination of oxygen atoms with Mn(II). As displayed in Figure 2e, Zhu et al [80] synthesized Ni-doped Mn-MOF on nickel foam using 1, 4, 5, 8naphthalenetetracarboxylic acid (NTC) as ligand by a one-step hydrothermal method. Wu et al [81] utilized the template agent 1, 2, 3, 4-butanetetracarboxylic acid (BTCA) and the organic salt manganese acetylacetone for the synthesis of Mn-MOF, which possess a compact microflower structure assembled by nanosheets (Figure 2f).…”