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Surface Chemical Characterization of Ceramic Materials: Adsorption and Degradation of 3,6,9‐Trioxadecanoic Acid on Nano‐ZrO 2
Author(s) -
Finke Thomas,
Lingenfelser Dominic,
Bindler Katharina,
Eisele Ulrich,
Bockhorn Henning,
Brunklaus Gunther
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03116.x
Subject(s) - dispersant , adsorption , magic angle spinning , chemical engineering , infrared spectroscopy , materials science , ceramic , sorption , diffuse reflectance infrared fourier transform , chemistry , cubic zirconia , fourier transform infrared spectroscopy , nano , chemical physics , nuclear magnetic resonance spectroscopy , organic chemistry , composite material , dispersion (optics) , physics , catalysis , photocatalysis , optics , engineering
This paper deals with the specific interaction of the dispersant 3,6,9‐trioxadecanoic acid (TODA) with nano‐ZrO 2 surfaces. Special interest was directed towards degradation behavior of the adsorbates and its influence on dispersant capabilities of TODA regarding stabilization of ethanolic nano‐ZrO 2 suspensions. ZrO 2 adsorption sites and the adsorbates formed are examined by diffuse reflectance infrared Fourier transform spectroscopy, thermal analysis, 1 H‐, and 13 C‐cross polarization magic angle spinning solid‐state nuclear magnetic resonance spectroscopy. 1 H as well as 13 C‐chemical shifts and the configurations of the corresponding adsorbed TODA species on zirconia sites are predicted by means of density functional theory quantum chemical calculations for supporting the interpretation of the experimental spectral data obtained. This work shows that combination of analytical and theoretical methods is an effective approach characterizing surface chemical properties of ceramic materials, determining sorption properties of organic process additives, investigating correspondent elementary and degradation reactions as well as clarifying cause‐effect relationships in ceramic processes.