TY - JOUR
T1 - Thermochemistry of nanoparticles on a substrate
T2 - Zinc oxide on amorphous silica
AU - Shvareva, Tatiana Y.
AU - Ushakov, Sergey V.
AU - Navrotsky, Alexandra
AU - Libera, Joseph A.
AU - Elam, Jeffrey W.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/7
Y1 - 2008/7
N2 - Crystalline samples of zinc oxide on a mesoporous amorphous silica substrate were prepared by 5 to 15 atomic layer deposition cycles with diethyl zinc and water at 150 °C. Samples were characterized by x-ray diffraction, thermogravimetry, and nitrogen adsorption-desorption isotherms. High-temperature oxide melt solution calorimetry and water adsorption calorimetry experiments were performed to measure surface enthalpy for crystalline ZnO particles supported on the substrate. The measured enthalpies 1.23 ± 0.35 and 2.07 ± 0.59 J/m2 for hydrous and anhydrous surfaces, respectively, are in agreement with previously reported measurements for unsupported ZnO nanoparticles. Feasibility of thermochemical characterization of complex system of atomic layer deposition (ALD) prepared particles on a substrate was demonstrated.
AB - Crystalline samples of zinc oxide on a mesoporous amorphous silica substrate were prepared by 5 to 15 atomic layer deposition cycles with diethyl zinc and water at 150 °C. Samples were characterized by x-ray diffraction, thermogravimetry, and nitrogen adsorption-desorption isotherms. High-temperature oxide melt solution calorimetry and water adsorption calorimetry experiments were performed to measure surface enthalpy for crystalline ZnO particles supported on the substrate. The measured enthalpies 1.23 ± 0.35 and 2.07 ± 0.59 J/m2 for hydrous and anhydrous surfaces, respectively, are in agreement with previously reported measurements for unsupported ZnO nanoparticles. Feasibility of thermochemical characterization of complex system of atomic layer deposition (ALD) prepared particles on a substrate was demonstrated.
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U2 - 10.1557/jmr.2008.0237
DO - 10.1557/jmr.2008.0237
M3 - Article
AN - SCOPUS:48749094372
SN - 0884-2914
VL - 23
SP - 1907
EP - 1915
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 7
ER -