January 18, 2021 UMD Home FabLab AIMLab


Advanced Materials

YuHuang Wang, department of Chemistry and Biochemistry at the University of Maryland and a principal investigator on the NEES EFRC, has been chosen for one of Advanced Materials' first video abstracts.

The work shows that atomic-layer deposition can "heal" defects in carbon nantubes. The defects are formed by oxidation, and aluminum is deposited over the defects to stop their growth. 

Summary: The selective growth of Al2O3 islands over defect sites on carbon nanotube surface significantly increases oxidation breakdown thresholds to 6.8 W cm–2, more than double than that of unprotected films. The elevated input power enables thermoacoustic emissions at loud audible sound pressure levels of 90.1 dB that are inaccessible with the unprotected films.

 

Find out more in the Video Abstract.

 

 

Blocking Oxidation Failures of Carbon Nanotubes through Selective Protection of Defects

Advanced Materials, 2016

0.1002/adma.201601027.



December 12, 2016


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