IJCRRI Journ Cur Res ReInternational Journal of Current Research and ReviewI Journ Cur Res Re2231-21960975-5241Radiance Research Academy1960TechnologyELECTRO-OXIDATION OF ETHANOL AND ISOPROPANOL ONTO PT-SN AND PT-NI SURFACES ChatterjeeAbhikChatterjeeMoitrayeeGhoshSusantaBasumallickI1320This article is copyright of Popeye Publishing, 20092009This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0) Licence. You may share and adapt the material, but must give appropriate credit to the source, provide a link to the licence, and indicate if changes were made.

A simple galvanostatic method is reported on the preparation of bimetallic Pt-Sn and Pt-Ni catalysts on graphite sheet electrode and studied their catalytic activity towards isopropanol (2-Propanol or 2-PrOH) and ethanol (EtOH) electro-oxidation. These catalysts have been characterized by SEM, EDX, Cyclic voltammetry (CV) and amperometry technique. The surface area of the deposited binary electro-catalysts has been estimated from Cu-UPD__ampersandsignnbsp;technique. A striking opposite catalytic behavior of Pt86Sn14 is observed for EtOH and 2-PrOH oxidation. Presence of Sn enhances catalytic activity of Pt for EtOH oxidation, while it deactivates the same for 2-PrOH oxidation. On the other hand, incorporation of small percentage of Ni in binary Pt98Ni2 enhances its catalytic activity for oxidation of both the alcohols. The results are explained in terms of bifunctional effect, electronic effect and strong adsorption of intermediate products.

Electro-oxidation Ethanol Isopropanol Binary electrocatalyst Electronic effect Bifunctional mechanism.