Pd Nanoparticles encapsulated on dendrimer-modified carbon nanotubes and their properties as hydrogen sensor

Seonghwa Ju, Jun Min Lee, Yeongri Jung, Hee Jin Kim, Eunsongyi Lee, Kye Jin Jeon, Wooyoung Lee, Sung Jin Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We synthesized Pd nanoparticles on the surface modified single walled carbon nanotubes(SWNTs) with 3rd generation NH2-terminated poly(amidoamine) dendrimers. We found that the more amine groups are attached on SWNTs, the more Pd nanoparticles are bound. The palladium nanoparticles are attached about 12.1wt% on the hyperbranched poly(amidoamine) modified SWNTs and their mean diameter were 3.3 ± 0.6 nm and 2.4 ± 0.9 nm. A thermal treatment of the Pd nanoparticles functionalized SWNTs resulted the increase of sensitivity, in consequence of getting close between SWNTs and Pd nanoparticles modified on dendrimers. The sensor exhibited to fast response time, and good selectivity hydrogen gas at concentrations as low as 10 ppm.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - 2009 Dec 1
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: 2009 Mar 222009 Mar 26

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other237th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CitySalt Lake City, UT
Period09/3/2209/3/26

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Ju, S., Lee, J. M., Jung, Y., Kim, H. J., Lee, E., Jeon, K. J., Lee, W., & Kim, S. J. (2009). Pd Nanoparticles encapsulated on dendrimer-modified carbon nanotubes and their properties as hydrogen sensor. In American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).