High Aspect Ratio Carbon Nanotube Membranes Decorated with Pt Nanoparticle Urchins for Micro Underwater Vehicle Propulsion via H2O2 Decomposition

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• 作者：Kevin M. Marr ; Bolin Chen ; Eric J. Mootz ; Jason Geder ; Marius Pruessner ; Brian J. Melde ; Richard R. Vanfleet ; Igor. L. Medintz ; Brian D. Iverson ; Jonathan C. Claussen
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：August 25, 2015
• 年：2015
• 卷：9
• 期：8
• 页码：7791-7803
• 全文大小：749K
• ISSN：1936-086X

文摘

The utility of unmanned micro underwater vehicles (MUVs) is paramount for exploring confined spaces, but their spatial agility is often impaired when maneuvers require burst-propulsion. Herein we develop high-aspect ratio (150:1), multiwalled carbon nanotube microarray membranes (CNT-MMs) for propulsive, MUV thrust generation by the decomposition of hydrogen peroxide (H₂O₂). The CNT-MMs are grown via chemical vapor deposition with diamond shaped pores (nominal diagonal dimensions of 4.5 脳 9.0 渭m) and subsequently decorated with urchin-like, platinum (Pt) nanoparticles via a facile, electroless, chemical deposition process. The Pt-CNT-MMs display robust, high catalytic ability with an effective activation energy of 26.96 kJ mol^鈥? capable of producing a thrust of 0.209 卤 0.049 N from 50% [w/w] H₂O₂ decomposition within a compact reaction chamber of eight Pt-CNT-MMs in series.