Three-dimensional petal-like graphene Co3.0Cu1.0 metal organic framework for oxygen evolution reaction

Phytochemical-Assisted Green Synthesis of Nickel Oxide Nanoparticles for Application as Electrocatalysts in Oxygen Evolution Reaction

“…To calculate C dl values, the samples were subjected to cyclic voltammetry (CV) at different scan rates in the non-Faradaic segment where the voltage was scanned from 1.46 to 1.56 V vs. RHE (Figure 7). The double-layer capacitance was then derived based on the gradient of linear plot of ∆J = (J a − J c ) (where J a and J c are anodic and cathodic current density) at 1.52 V vs. RHE as a function of the scan rate [25]. The ECSA was then calculated from the double-layer capacitance based on the following equation:…”

Iron-doped novel Co-based metal–organic frameworks for preparation of bifunctional catalysts with an amorphous structure for OER/HER in alkaline solution

“…42,43 Furthermore, the strong coordination interaction of metal ions with aromatic ligands enables rapid nucleation during crystallization, which brings about great difficulty in directly constructing MOFs with a large number of bimetallic sites. 44,45 Not only that, the complex and tedious preparation process is not conducive to large-scale production and the commercial promotion of catalysts. To address these problems, carefully designed structures (such as amorphous materials) are required to significantly enhance the surface area and porous structure of conducting MOFs, which maximizes the number of exposed bimetallic centers while facilitating the accessibility of these active substances to electrolytes to effective electrocatalytic sites.…”

High catalytic performance of nano-flowered Mg-doped NiCo layered double hydroxides for the oxygen evolution reaction

“…Therefore, over the past decade, considerable efforts have been made to manufacture cost-effective OER catalysts using non-precious metals. [12][13][14] To date, due to their abundant reserves and excellent OER catalytic properties, a variety of low-cost transition metal-based materials have been developed, such as oxides, [15][16][17][18] hydroxides, 19,20 phosphates, [21][22][23] sulfides, 24 and spinels. 25 More recently, transition metal-based layered double hydroxides (LDHs) have been identified as an economical and efficient electrocatalyst for the OER in alkaline environments.…”