5 years ago

Anhydrous Ethanol Dehydrogenation on Metal–Organic Chemical Vapor Deposition Grown GaN(0001)

Anhydrous Ethanol Dehydrogenation on Metal–Organic Chemical Vapor Deposition Grown GaN(0001)
Martin Stutzmann, Rui N. Pereira, Constantin A. Walenta, Martin Tschurl, Ueli Heiz, Sebastian L. Kollmannsberger
In this ultrahigh vacuum study, temperature-programmed desorption, Auger electron spectroscopy, and ex-situ atomic force microscopy are used to evaluate the surface chemistry of ethanol on the GaN(0001) surface. Ethanol undergoes dehydration and dehydrogenation reactions on the GaN(0001) surface to a larger extend than on the TiO2(110) surface. This enhanced reactivity is attributed to a higher amount of metal-bound ethoxy. In addition, molecular H2 has been identified as a byproduct of the ethanol dehydrogenation to acetaldehyde. We attribute the reactivity, including the formation of molecular hydrogen, to the combination of wurtzite structure and nitride chemistry, since surface amines are considered to be less stable than surface hydroxyls on other model oxides.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b04946

DOI: 10.1021/acs.jpcc.7b04946

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.