01595nas a2200181   4500008004100000022001400041245014400055210006900199260011000268300001400378490000700392520078800399100002501187700002101212700002401233700003001257856012601287       2010                        eng d  a0959-942800aBio-inspired catalyst compositions for enhanced oxygen reduction using nanostructured Pt electrocatalysts in polymer electrolyte fuel cells0 aBioinspired catalyst compositions for enhanced oxygen reduction   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcSEP  a9651-96570 v203 a<p>Composites of Nafion with a class of bio-molecules viz., plant hormones, are explored as potential polymer electrolytes for improving the proton transport inside the catalyst layer of a H(2)/O(2) fuel cell. Specifically, four nitrogenous plant hormones, two each from the class of auxins and cytokinins have been investigated, following preliminary characterization of the composite dispersions and membranes. Interestingly, the use of indole-3-acetic acid (an auxin) in the catalyst layer reveals a 30% enhancement in Pt catalyst utilization and improved fuel cell performance by 150 mW cm(-2). The effect of these bio-molecules on the kinetic and mass transport parameters has been analyzed systematically using a combination of electrochemical and spectroscopic techniques.</p>1 aParthasarathy, Meera1 aKannan, Ramaiyan1 aSreekumar, Kurungot1 aPillai, Vijayamohanan, K.  uhttps://library.ncl.res.in/content/bio-inspired-catalyst-compositions-enhanced-oxygen-reduction-using-nanostructured-pt-0