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Article

Scalable Carbon Nanotube/Platinum Nanoparticle Composite Inks from Salt Templates for Oxygen Reduction Reaction Electrocatalysis for PEM Fuel Cells

1
Department of Chemistry & Life Science United States Military Academy, West Point, NY 10996, USA
2
Photonics Research Center, United States Military Academy, West Point, NY 10996, USA
3
Sensors & Electron Devices Directorate, U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, MD 20783, USA
*
Authors to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(4), 160; https://0-doi-org.brum.beds.ac.uk/10.3390/jcs4040160
Received: 14 September 2020 / Revised: 13 October 2020 / Accepted: 21 October 2020 / Published: 26 October 2020
Platinum nanoparticles supported on multi-walled carbon nanotubes (CNTs) were synthesized by the chemical reduction of Magnus’s salt templates formed by the electrostatic stacking of oppositely charged platinum coordinated ions. The Magnus’s salt templated synthesis of platinum macrotubes, previously demonstrated, results in sidewalls made up of individual textured nanoparticles 100 nm in diameter and comprised of 5 nm diameter fibrils. Here we demonstrate a new platform method that utilizes the individual nanoparticles that make up the platinum macrotubes formed from salt templates and subsequently disperse them through a CNT network by ultrasonication to develop an electrocatalyst nanocomposite for the oxygen reduction reaction (ORR) critical for the development of proton exchange membrane (PEM) fuel cell applications. The structural morphology and composition of the nanocomposite catalysts was characterized using scanning electron microscopy (SEM), X-ray diffractometry (XRD), and Raman spectroscopy to confirm the presence of platinum nanoparticles throughout the CNT network of the nanocomposite. The electrocatalytic activity of the nanocomposite inks was verified with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and linear sweep voltammetry (LSV) for ORR. Furthermore, this all aqueous-based and scalable approach for the synthesis and dispersion of platinum nanoparticles with CNTs can lead to a new formulation process for the production of electrocatalytic nanocomposite inks for PEM fuel cells using the nanoparticles that form within salt templates after chemical reduction. View Full-Text
Keywords: nanocomposite ink; carbon nanotube; platinum nanoparticles; electrocatalysis; fuel cells nanocomposite ink; carbon nanotube; platinum nanoparticles; electrocatalysis; fuel cells
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MDPI and ACS Style

Nagelli, E.A.; Burpo, F.J.; Marbach, D.A.; Romero, A.N.; Rabbia, D.J.; Mahr, H.W.; Jaskot, M.H.; Murray, A.N.; Chu, D.D. Scalable Carbon Nanotube/Platinum Nanoparticle Composite Inks from Salt Templates for Oxygen Reduction Reaction Electrocatalysis for PEM Fuel Cells. J. Compos. Sci. 2020, 4, 160. https://0-doi-org.brum.beds.ac.uk/10.3390/jcs4040160

AMA Style

Nagelli EA, Burpo FJ, Marbach DA, Romero AN, Rabbia DJ, Mahr HW, Jaskot MH, Murray AN, Chu DD. Scalable Carbon Nanotube/Platinum Nanoparticle Composite Inks from Salt Templates for Oxygen Reduction Reaction Electrocatalysis for PEM Fuel Cells. Journal of Composites Science. 2020; 4(4):160. https://0-doi-org.brum.beds.ac.uk/10.3390/jcs4040160

Chicago/Turabian Style

Nagelli, Enoch A., F. J. Burpo, Delaney A. Marbach, Aaron N. Romero, Daniel J. Rabbia, Hugh W. Mahr, Mark H. Jaskot, Asia N. Murray, and Deryn D. Chu 2020. "Scalable Carbon Nanotube/Platinum Nanoparticle Composite Inks from Salt Templates for Oxygen Reduction Reaction Electrocatalysis for PEM Fuel Cells" Journal of Composites Science 4, no. 4: 160. https://0-doi-org.brum.beds.ac.uk/10.3390/jcs4040160

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