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Creation and Characterization of Carbon Nanotube Foams and Related Materials

Creation and Characterization of Carbon Nanotube Foams and Related Materials Pulickel M. Ajayan & Ravi Kane, Rensselaer Polytechnic Institute , DMR 0408745.

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Creation and Characterization of Carbon Nanotube Foams and Related Materials

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  1. Creation and Characterization of Carbon Nanotube Foams and Related Materials Pulickel M. Ajayan & Ravi Kane, Rensselaer Polytechnic Institute,DMR 0408745 • * A nano-syringe was fabricated via anodization of Al wire and etching of the central part of the wire. The alumina syringe with nanoscale pores was used to separate DNA fragments of different molecular weights. The construction of the syringe structure is being optimized and further studies could have impact in medical applications. • * The micas belong to the family of phyllosilicates (sheet silicates) and are known for having highly perfect basal cleavages. The present work is focused on the use of mica to produce layered hybrid foam architectures (figure, left) which can have potential application in the field of mechanical damping or for supercapacitors. • * developed a method to fabricate macroporous carbon nanotube foams using silica colloidal templates. The macro-porous multiwalled nanotube membranes and the free standing 3D nanotube foams created are lightweight, chemically and mechanically stable. Multilayer foam: growth of aligned nanotube arrays (bottom) between galleries of exfoliated mica (top).

  2. Creation and Characterization of Carbon Nanotube Foams and Related Materials Pulickel M. Ajayan, Rensselaer Polytechnic Institute, DMR 0408745 Interdisciplinary Project: The project is a collaborative effort between materials science and chemical engineering laboratories at RPI. The graduate student, Sumanjeet Kaur is advised by investigators in the two disciplines. The student was involved in collaborations with several researchers on campus with varied backgrounds. The project has taken new directions that rely on expertise in areas related to materials fabrication as well as bio-medical engineering. The results from the project could impact a wide range of applications such as energy storage devices, medical sciences and structural materials. Undergraduate Participation: Undergraduate students have continuously worked on this project and received training and exposure to the nanotechnology field. This summer, Jeff Martin (freshman in Engineering at RPI) took part in the project, in the fabrication of multilayer foam structures from layered mica. The successful completion of the project will result in a publication for the undergraduate student to be submitted to a peer reviewed international journal. Outreach: International collaboration has been an important part of the project. Students supported by the NSF International program with Mexico (Inter America Materials Collaboration) continued their interaction with us in developing and testing foams made from different kinds of nanotubes and nanowires. We had visitors from India who also participated in the project and worked with the graduate student. In this collaboration new structures with nanotube arrays were developed using techniques that was developed in the lab by the graduate student.

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