پديدآورندگان :
Mohammadi Tahereh Electrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran , Hosseini Mirghasem Electrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran , Ashassi Sorkhabi Habib Electrochemistry Research Laboratory, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
كليدواژه :
Metal , organic framework , Carbon felt , Ethanol fuel cell , Power density
چكيده فارسي :
Direct ethanol fuel cells (DEFCs), innovative electrochemical energy conversion devices, could ease the environmental and energy crisis. The high cost of Pt-based catalysts hinders the application of DEFCs. Metal-organic frameworks (MOFs) as an attractive type of porous crystalline materials (PC) have provided a unique choice for designing the distribution of metals on carbon substrates for various energy applications. Here, the NiCo MOFs were arrayed on highly conductive three-dimensional (3D) active carbon felt (ACF) as supported by a simple solvothermal method. The performance of the as-prepared NiCo MOFs/ACF as a binder-less anode electrode was investigated in a single direct ethanol fuel cell. The NiCo-MOF/ACF delivered 36.8 mW cm-2 power density at 60 ̊C compared to commercial Pt/C (E-TEK) (9.2 mW cm-2). The structural advantages such as the 3D architecture of ACF, a synergistic effect between two metals (Co and Ni) and many accessible active sites resulted in the magnificent activity of NiCo MOFs/ACF.
