The location of gold nanoparticles on titania: A study by high resolution aberration-corrected electron microscopy and 3D electron tomography

Juan C. Hernández-Garrido, Kenta Yoshida, Pratibha L. Gai, Edward D. Boyes, Claus H. Christensen, Paul A. Midgley

研究成果: Article

33 引用 (Scopus)

抜粋

Using HAADF-STEM electron tomography and aberration-corrected TEM/STEM electron microscopy, 3D reconstructions and high resolution images have been recorded of heterogeneous catalysts consisting of gold nanoparticles supported on titanium dioxide (anatase); these catalysts have gained attention recently because of their potential for use in many reactions with both industrial and environmental importance. We will illustrate how through the combination of high resolution images and segmented 3D tomographic data, structural features of the supported phase can be revealed which are normally not accessible through conventional imaging. The location of the nanoparticles preferentially at the grain boundaries, confirmed by these studies, is likely to influence the stability of the nanoparticles and is a key step in understanding and facilitating the development of better catalysts.

元の言語English
ページ(範囲)165-169
ページ数5
ジャーナルCatalysis Today
160
発行部数1
DOI
出版物ステータスPublished - 2011 2 2
外部発表Yes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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