- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
Graphene oxide nanoribbons (GOr), obtained by chemically unzipping multi-walled carbon nanotubes, were assembled into macroscopic mats by vacuum filtration. These mats exhibited up to 1.6% reversible contraction when electrically heated at ambient conditions. The experimentally derived work capacity of the mats was about 40 J/kg, which is similar to that of natural muscle. It was limited by the mechanical strength of mats and can be increased upon optimization of their preparation conditions. X-ray diffraction measurements indicated reversible changes in the interplanar spacing of GOr layers during heating. These dimensional changes can be associated with reversible adsorption/desorption of water molecules between GOr layers and used in thermally-driven micro-electromechanical systems (MEMS), micromachines, various opto-mechanic and micro-fluidic devices. Similar to shape memory alloy actuators, GOr mats can be deployed for electrolyte-free artificial muscle applications. The work reported in Chemical Physics Letters, 505 (2011) 31 extends the list of properties available from graphene oxide.
For more information, please click here
Mikhail E Kozlov
Copyright © University of Texas DallasIf you have a comment, please Contact us.
|Related News Press|
Spain nanotechnology featured at NANO KOREA 2015 June 26th, 2015
Towards graphene biosensors June 24th, 2015
Robust new process forms 3-D shapes from flat sheets of graphene June 23rd, 2015
MEMS Industry Group Hosts Its First MEMS/Sensors Conference Session at Transducers 2015: MIG Speakers Will Explore Technology Transfer, Emerging MEMS/Sensors, Manufacturing Infrastructure and Process Technology, June 23 in Anchorage June 3rd, 2015
Janusz Bryzek Joins MEMS Industry Group to Lead New TSensors Division - New Division will Focus on Accelerating Development of Emerging Ultra-high Volume Sensors Supporting Abundance, mHealth and IoT May 14th, 2015