Platinum-Paper Micromotors: An Urchin-like Nanohybrid Catalyst for Green Monopropellant Bubble-Thrusters | Zendy

Jonathan C. Claussen | Zendy; Michael A. Daniele | Zendy; Jason Geder | Zendy; Marius Pruessner | Zendy; Antti Mäkinen | Zendy; Brian J. Melde | Zendy; M. E. Twigg | Zendy; Jasenka Verbarg | Zendy; Igor L. Medintz | Zendy

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Platinum-Paper Micromotors: An Urchin-like Nanohybrid Catalyst for Green Monopropellant Bubble-Thrusters

Author(s) -

Jonathan C. Claussen,

Michael A. Daniele,

Jason Geder,

Marius Pruessner,

Antti Mäkinen,

Brian J. Melde,

M. E. Twigg,

Jasenka Verbarg,

Igor L. Medintz

Publication year - 2014

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/am504525e

Subject(s) - materials science , catalysis , platinum , nanotechnology , silicone , monopropellant , hydrogen peroxide , platinum nanoparticles , chemical engineering , propellant , composite material , organic chemistry , chemistry , engineering

Platinum nanourchins supported on microfibrilated cellulose films (MFC) were fabricated and evaluated as hydrogen peroxide catalysts for small-scale, autonomous underwater vehicle (AUV) propulsion systems. The catalytic substrate was synthesized through the reduction of chloroplatinic acid to create a thick film of Pt coral-like microstructures coated with Pt urchin-like nanowires that are arrayed in three dimensions on a two-dimensional MFC film. This organic/inorganic nanohybrid displays high catalytic ability (reduced activation energy of 50-63% over conventional materials and 13-19% for similar Pt nanoparticle-based structures) during hydrogen peroxide (H2O2) decomposition as well as sufficient propulsive thrust (>0.5 N) from reagent grade H2O2 (30% w/w) fuel within a small underwater reaction vessel. The results demonstrate that these layered nanohybrid sheets are robust and catalytically effective for green, H2O2-based micro-AUV propulsion where the storage and handling of highly explosive, toxic fuels are prohibitive due to size-requirements, cost limitations, and close person-to-machine contact.

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