1 research outputs found
Synthesis of Water-Dispersible Single-Layer CoAl-Carbonate Layered Double Hydroxide
Despite
extensive study on single-layer layered double hydroxides (SL-LDHs)
with NO<sub>3</sub><sup>–</sup> counterions, SL-LDHs with CO<sub>3</sub><sup>2–</sup> counterions (CO<sub>3</sub><sup>2–</sup> SL-LDHs) have never been prepared before. Herein, a CoAl-CO<sub>3</sub><sup>2–</sup> SL-LDH which stays stable in water and
powdery state is first synthesized using ethylene glycol as a reaction
medium. The SL-LDH, with thickness of ∼0.85 nm, is composed
of one Co(Al)O<sub>6</sub> layer sandwiched between two CO<sub>3</sub><sup>2–</sup> layers. The SL-LDH powder shows high specific
surface area (∼289 m<sup>2</sup>/g) and excellent electrocatalytic
oxygen evolution efficiency. This work provides the first simple way
to prepare CO<sub>3</sub><sup>2–</sup> SL-LDHs and will open
an avenue for synthesizing other SL-LDHs