1 research outputs found
Formation of Hierarchical Structure Composed of (Co/Ni)Mn-LDH Nanosheets on MWCNT Backbones for Efficient Electrocatalytic Water Oxidation
Active,
stable, and cost-effective electrocatalysts are attractive
alternatives to the noble metal oxides that have been used in water
splitting. The direct nucleation and growth of electrochemically active
LDH materials on chemically modified MWCNTs exhibit considerable electrocatalytic
activity toward oxygen evolution from water oxidation. CoMn-based
and NiMn-based hybrids were synthesized using a facile chemical bath
deposition method and the as-synthesized materials exhibited three-dimensional
hierarchical configurations with tunable Co/Mn and Ni/Mn ratio. Benefiting
from enhanced electrical conductivity with MWCNT backbones and LDH
lamellar structure, the Co<sub>5</sub>Mn-LDH/MWCNT and Ni<sub>5</sub>Mn-LDH/MWCNT could generated a current density of 10 mA cm<sup>–2</sup> at overpotentials of ∼300 and ∼350 mV, respectively,
in 1 M KOH. In addition, the materials also exhibited outstanding
long-term electrocatalytic stability