caa a22 4500 60619522X CHVBK 20210128100918.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10934-015-9937-5 doi (NATIONALLICENCE)springer-10.1007/s10934-015-9937-5 Synthesis and characterization of Pt supported on multiwalled carbon nanotubes for improved catalytic performance in fuel cell applications [Elektronische Daten] [Rajangam Padmavathi, Ammaiappan Sandhya Devi, Neelakandan Saranya, Periyannan Gnanasundaram, Dharmalingam Sangeetha] Commercially available multiwalled carbon nanotubes (MWCNTs) were functionalized using a mixture of HNO3 and H2SO4 in refluxing condition under three different reaction times (1, 3, and 5h). The Pt loaded on functionalized MWCNTs (f-MWCNTs) (Pt/1f, 3f & 5f-MWCNTs) were prepared by reducing chloroplatinic acid and for comparison Pt loaded on pristine MWCNTs (Pt/MWCNTs) was also prepared. The size of Pt nanoparticles was determined using X-ray diffraction method. The uniform dispersion of the Pt catalyst on CNTs was confirmed by HRSEM and HRTEM. Surface area and pore size were calculated by Brunauer Emmett Teller analysis method. Five membrane electrode assembly sets were prepared (Pt/MWCNTs, Pt/1f, 3f, 5f-MWCNTs and commercial Pt/C) and tested in the fuel cell assembly. The first four were prepared using SPEEK membrane as electrolyte with the synthesized Pt/f-MWCNTs catalysts and the fifth one was prepared using commercial Nafion-117 electrolyte and Pt/C electrode for comparison. Springer Science+Business Media New York, 2015 Amorphous materials nationallicence Chemical synthesis nationallicence Catalyst supports nationallicence SPEEK membrane nationallicence Padmavathi Rajangam Department of Mechanical Engineering, Anna University, 600025, Chennai, India aut Sandhya Devi Ammaiappan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut Saranya Neelakandan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut Gnanasundaram Periyannan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut Sangeetha Dharmalingam Department of Mechanical Engineering, Anna University, 600025, Chennai, India aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 647-658 1380-2224 22:3<647 2015 22 10934 https://doi.org/10.1007/s10934-015-9937-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-9937-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Padmavathi Rajangam Department of Mechanical Engineering, Anna University, 600025, Chennai, India aut NATIONALLICENCE 700 1- Sandhya Devi Ammaiappan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut NATIONALLICENCE 700 1- Saranya Neelakandan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut NATIONALLICENCE 700 1- Gnanasundaram Periyannan Department of Chemical Engineering, A.C.Tech, Anna University, 600025, Chennai, India aut NATIONALLICENCE 700 1- Sangeetha Dharmalingam Department of Mechanical Engineering, Anna University, 600025, Chennai, India aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 647-658 1380-2224 22:3<647 2015 22 10934