Improvement of HER and OER process using MIL-100(Fe) and its derived carbon nanoporous
Paper ID : 1152-ICNS
Authors:
tara khadivi *1, sedigheh zeinali1, maryam tohidi1, safieh momeni2
1Department of Nanochemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
2The Persian Gulf Marine Biotechnology Research Center, Bushehr University of Medical Scineces, Bushehr, Iran
Abstract:
Finding an efficient and low-cost electrocatalyst is very important for advancing oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Metal-organic frameworks (MOFs), possessing catalytic activities, excellent structural variety and high surface areas was recently demonstrated a great catalyst for electrolytic water splitting. In this work, MIL-100 (Fe) as a type of nanoporous metal organic framework (MOF) was synthesized and then carbonized (C-MIL-100 (Fe)). MIL-100 (Fe) are fabricated via an aqueous solution reaction at room temperature. At first, the MIL-100 (Fe) and C-MIL-100 (Fe) were characterized by Scanning Electron Microscopy (SEM). Then, the electrocatalytic function of MIL-100(Fe) before and after carbonization has been compared by electrochemical tests. The effect of carbonization was investigated on the electrocatalytic performance of MIL-100 (Fe) in alkaline solution. The C-MIL-100 (Fe) improve HER performance in terms of an onset potential of 0.03V vs. RHE and an overpotential of -420 mV at 10 mAcm⁻², but carbonization can’t improve MIL-100 (Fe) performance for OER.
Keywords:
MIL-100(Fe); Carbonization; Electrocatalyst; OER; HER.
Status : Abstract Accepted (Poster Presentation)