Investigation of the electrocatalytic effect of MIL-101(Fe) and its derived nanoporous carbon on water splitting process
Paper ID : 1151-ICNS
Authors:
parvaneh sayadi *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:
Designing a low cost and high efficient electrocatalyst for producing hydrogen as a clean and renewable energy in water splitting is very important. Metal organic frameworks (MOFs) are a nanoporous materials and an excellent choice as an electrocatalyst to split water. In this study, MIL-101(Fe) as a type of nanoporous MOF was synthesized by solvothermal method and then carbonized (C-MIL-101(Fe)). MOF was characterized by Scanning Electron Microscopy (SEM). Electrocatlytic performance of MIL-101(Fe) and C-MIL-101(Fe) was compered in 1 M KOH. Tafel slop of MIL-101(Fe) and C-MIL-101(Fe) was 159 mV dec-1 and 152 mV dec-1, respectively. The overpotential of these materials at 10 mA cm-2 was -0.48 V for HER. The overpotential of MIL-101(Fe) and C-MIL-101(Fe) at 10 mA cm-2 was 1.28 V and 1.32 V, respectively. The Tafel slop of C-MIL-101(Fe) was 162 mV dec-1 compared to 240 mV dec-1 for MIL-101(Fe) for OER process. Therefore, C-MIL-101(Fe) improved the OER electrocatalytic activity but can’t effect on the HER performance.
Keywords:
MIL-101(Fe); Carbonization; Electrocatalyst; HER; OER.
Status : Abstract Accepted (Poster Presentation)