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Stabilizing Platinum Nanoparticles on Multiwalled Carbon Nanotubes for Enhanced Catalytic Activity

This study explores the stabilization of nm-sized platinum (Pt) and cobalt (Co) nanoparticles on multiwalled carbon nanotubes (MWNT) for catalytic applications. Using MWNTs, we can tune binding energy variations for Pt particles depending on their location, which influences catalytic reactivity and selectivity. The findings highlight the different catalytic behaviors of Pt particles located inside versus outside the MWNTs, revealing significant implications for developing more efficient catalysts.

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Stabilizing Platinum Nanoparticles on Multiwalled Carbon Nanotubes for Enhanced Catalytic Activity

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  1. Carbon MWNT supported Pt catalysts; X. Wang, N. Li, L. Pfefferle, G. Haller Yale University, Department of Chemical Engineering. • Carbon Multiwalled nanotubes (MWNT) allow stabilization of nm-sized Pt or Co particles for catalytic applications. • Binding energy changes for Pt particles inside (blue) and outside (red) the MWNT. Pt metal foil reference in black (see figure below). • This allows tuning of catalytic reactivity and selectivity (e.g. Wang et al. 2010). 2-5nm Pt particles outside MWNT (left) And inside MWNT (right) X. Wang, N. Li, J.A. Webb, L.D. Pfefferle and G.L. Haller, Effect of surface oxygen containing groups on the catalytic activity of multi-walled carbon nanotube supported Pt catalyst in press, Applied Catalysis B: Environmental, 2010. Work performed on beamline X18B

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