Recent advances in ternary layered double hydroxide electrocatalysts for the oxygen evolution reaction

Abstract

The recent advances in ternary layered double hydroxide electrocatalysts, including the strategies used for the design, synthesis, and evaluation of their performance for oxygen evolution reaction are reviewed in this account.

Layered double hydroxide-based electrocatalysts for the oxygen evolution reaction: identification and tailoring of active sites, and superaerophobic nanoarray electrode assembly

“…Modulation of the compositions of LDH nanosheets can be achieved in large varieties, e.g., M 2+ in the nanosheets can be selected from Mn 2+ , Co 2+ , Fe 2+ , Mg 2+ , etc., and M 3+ in the nanosheets can be selected from Fe 3+ , Co 3+ , Cr 3+ , V 3+ , etc. 145,146 Taking NiFe-LDHs as the benchmark for the OER, and the Ni-O-Fe motif serving as the active centre, there are several representative studies that involve doping with a third metal cation. Heterovalent metal cations in LDH nanosheets have previously been achieved and resulted in a further improvement in OER activity.…”

A Novel Para-Amino Salicylic Acid Magnesium Layered Hydroxide Nanocomposite Anti-Tuberculosis Drug Delivery System with Enhanced in vitro Therapeutic and Anti-Inflammatory Properties

“…The layered double hydroxide is a unique nanomaterial vastly used in various fields such as environmental remediation, catalysis, flame retardants, antimicrobial clay materials, cosmetics, biosensors, bioimaging, gene delivery, bioimplants and drug delivery carriers, etc. 11,[64][65][66] Layered double hydroxides are composed of divalent ions (Mg(II), Zn (II), Fe (II), Ni (II)) and trivalent ions (Al (III), Fe (III), Gd (III)) and both are combined to create a positive charge in the structure, making the material suitable for anions, drugs and species with a lone pair of electrons. 12,16,67 The other variation of the materials includes divalent layered structures such as zinc layered hydroxides which is the most common example and for this type of 7044 material, no trivalent ion is added.…”

Nanoporous Gold‐Based Materials for Electrochemical Energy Storage and Conversion

“…[ 59 ] It is also important to mention that, in addition to the presence of the conductive NPG substrate, doping with a third metal has been an excellent strategy to improve the electrocatalytic properties of lamellar hydroxides, as previously reported in the work of Gonçalves and collaborators. [ 60 ]…”

“…[59] It is also important to mention that, in addition to the presence of the conductive NPG substrate, doping with a third metal has been an excellent strategy to improve the electrocatalytic properties of lamellar hydroxides, as previously reported in the work of Gonçalves and collaborators. [60] Yao and collaborators [61] described a highly efficient electrocatalyst based on self-supported monolithic hybrid electrodes of bimetallic cobalt-molybdenum nitride nanosheets vertically aligned on 3D and bicontinuous nanoporous gold (NPG/ CoMoN x , Figure 18B) to boost the sluggish reaction kinetics of water oxidation in alkaline media. A self-supported flexible NPG/CoMoN x hybrid electrode was fabricated by a facile strategy, i.e., aligning vertically CoMoO 4 precursor nanosheets on a nanoporous layer of flexible Au current collector via a hydrothermal approach, followed by a thermal nitridation procedure in NH 3 /Ar atmosphere to convert CoMoO 4 into CoMoN x (Figure 18A).…”