Boosting efficiency and stability using zirconia nanosphere-held carbon for proton exchange membrane fuel cells. Issue 1 (20th December 2017)

• Record Type: Journal Article
• Authors: Dhanasekaran, P.; Williams, Sharon R.; Kalpana, D.; Bhat, Santoshkumar D.
• Is Part Of: RSC advances. Volume 8:Issue 1(2018)
• Page Start: 472
• Page End: 480
• Publication Date: 2017-12-20
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra10509f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Corrosion during the accelerated stress test for Pt on carbon and Pt on Zr–C 3 composite representing the steps for reduced carbon corrosion, stabilized Pt nanoparticles and re-deposition of Pt nanoparticles on the ZrO2 :C composite. Abstract : The synthesis of a zirconia-held carbon supported Pt electrocatalyst increases the fuel cell performance in polymer electrolyte fuel cells. The pure tetragonal phase of the zirconia–carbon composite is synthesized using a low temperature method. The optimum composition of zirconia–carbon exhibits a maximum peak power density of 1.12 W cm −2 with a metal (Pt) loading of 150 μg cm −2 . This also improves long time durability and retains 70% of its initial activity even after 6000 potential cycles between 1 to 1.6 V vs. a dynamic hydrogen electrode.