| CNT/ CoCr- Layered Double Hydroxides as High efficient Oxygen Evolution Catalysts |
| Paper ID : 1317-ICNS |
| Authors |
|
Leila Dashti1, Leila Jafari Foruzin *2, Zolfaghar Rezvani2 1Azarbaijan Shahid Madani University 2Department of Chemistry, Faculty of Basic Sciences, Azarbaijan Shahid Madani University |
| Abstract |
| The design of highly efficient, durable, and earth-abundant catalysts for the oxygen evolution reaction is crucial to a variety of important energy conversion and storage processes. Here, we use carbon nano tube (CNT, ∼5 nm) to form hybrids with the cobalt−chromium layered double hydroxide (CoCr-LDH) nanoplates and characterized using X-ray diffraction, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy. The CNT/ CoCr-LDH composise were then used as the efficient electrocatalyst materials for water oxidation in KOH 0.1M media. The resulting CNT/ CoCr-LDH composise exhibits high electrocatalytic activity (with an overpotential of ∼ 46 mV in 0.1 M KOH) and stability for oxygen evolution, which almost exceeds the values of all previously reported Co-Cr compounds and were comparable to those of the most active perovskite-based catalyst. In this condition, the CNT/ CoCr-LDH composise displayed improved electrocatalytic activity in comparison with CoCr-LDH due to present CNT at composite which enhanced the conductivity of the synthesized LDH. |
| Keywords |
| “Water oxidation”, “Layered double hydroxide,“Nanocomposite”, “Carbon nanotube” |
| Status: Abstract Accepted (Poster Presentation) |
