Author(s)

Kafoumba Bamba^*, Nahossé Ziao

Laboratoire de Thermodynamique et de PHysico-Chimie du Milieu, UFR-SFA, Université Nangui Abrogoua, Abidjan, Cote d’Ivoire.

39 mol% SiC of ceramic pellets ZrB₂-αSiC and TiB₂-αSiC were synthesized by the reactive hot pressure RHP process at 1850°C under 40 Mpa in vacuum. The XR diffraction displays the absence of other reagents apart from ZrB₂, SiC and TiB₂ confirming the purity of the pellets. The cathodic exploitation of both of them through electrochemical study shows that TiB₂-αSiC is the most active for Hydrogen Evolution Reaction (HER) and Hydrogen Oxidation Reaction (HOR) in 0.5 M of H₂SO₄ solution at room temperature. Moreover, the kinetic exploitation shows that for both pellets the system is controlled by mass transport when they are used as HER. However, in the case of HOR, the system is controlled by the electron transfer.

Ceramic Pellets, HER, HOR, Polarization, Koutecky-Levich Plots

Bamba, K. and Ziao, N. (2016) Cathodic Using of ZrB₂-αSiC and TiB₂-αSiC for PEM Electrolysis and Water Electrolysis at Low Temperature. American Journal of Analytical Chemistry, 7, 1-11. doi: 10.4236/ajac.2016.71001.