TY - JOUR
AU - Kamachi Mudali, U.
AB - The present work involves development of noble metal nanoparticle coated Ti based electrode for application in severe corrosive environments. The etched Ti substrate was coated with noble metal nanoparticle via a seed mediated hydrothermal reduction method. Advanced surface characterization techniques elucidated that this two step synthesis method generated a uniform and highly dispersed nanoparticle coating on Ti which is essential for application in severe corrosive medium. The enhanced activity for methanol electro-oxidation compared to polycrystalline Pt proved the excellent electrocatalytic activity of as synthesized Pt nanoparticles coated Ti electrode. The adhesion strength of the coating on the Ti substrate was found to be excellent with a rank of 5A as per ASTM standard. The long term durability of Pt nanoparticles coated big cylindrical Ti mesh with 164 cm2 surface area was tested by employing it as anode for electro-oxidation of Ce in 11.5 M nitric acid under an applied operational current density of 9 mA/cm2 for 1000 h. Only 1 V increment was observed even after 1000 h confirming the excellent durability of this electrode. SEM and elemental mapping of the surface of coated electrode after 1000 h exposure in severe corrosive nitric acid further confirmed uniform dispersion of Pt on the surface and absence of delamination.
TI - Stability and Durability Study of Nano Pt Coated Titanium for Electrode Application
JF - Transactions of the Indian Institute of Metals
DO - 10.1007/s12666-016-0944-2
DA - 2016-08-18
UR - https://www.deepdyve.com/lp/springer-journals/stability-and-durability-study-of-nano-pt-coated-titanium-for-VFXpzmtyOZ
SP - 1689
EP - 1696
VL - 70
IS - 7
DP - DeepDyve
ER -