Now showing items 121-130 of 147
Metal dispersion of bimetallic catalysts via stepwise chemisorption and surface titration : I. Ru---Au/SiO2
(Elsevier, 1985-09)
A stepwise chemisorption and titration procedure involving H2 and O2 as adsorbates is used to measure the dispersion of the individual metal components in bimetallic Ru---Au/SiO2 catalysts. The experimental approach is ...
Gold-titania interactions: Temperature dependence of surface area and crystallinity of TiO2 and gold dispersion
(Elsevier, 1984-05)
The influence of temperature on the BET surface area, crystallinity, and anatase/rutile phase transformation of blank TiO2 and Au/TiO2 catalysts is studied. Presence of gold delays the recrystallization of anatase and the ...
Alumina-supported triosmium clusters and ensembles: Characterization by high-resolution transmission electron microscopy
(Elsevier, 1983-11)
Structurally defined supported osmium clusters [HOs3(CO)10---O---Al3(CO)12] with the -OH groups of [gamma]-Al2O3. The supported clusters were heated to 200 [deg]C in argon and then reduced in hydrogen at 400 [deg]C, being ...
Isotopic oxygen exchange on supported Ru and Au catalysts
(Elsevier, 1980-06)
The isotopic exchange reaction of molecular oxygen is applied to supported ruthenium and gold catalysts. The results on supported ruthenium are similar to those on RuO2. The exchange reaction seems to be unaffected by ...
Polyelectrolyte-Clay-Protein Layer Films on Microfluidic PDMS Bioreactor Surfaces for Primary Murine Bone Marrow Culture
(WILEY-VCH Verlag, 2007-10-15)
Poly(dimethylsiloxane) (PDMS) microbioreactors with computerized perfusion controls would be useful for engineering the bone marrow microenvironment. However, previous efforts to grow primary bone marrow cells on PDMS ...
Label-Free Affinity Assays by Rapid Detection of Immune Complexes in Submicrometer Pores This work was supported by an NSF CAREER award (M.M.) and by a research grant from IMRA America and AISIN USA as well as seed funds from the College of Engineering, University of Michigan. The authors thank Daniel J. Estes, Amy P. Wong, Irina Gitlin, and Paul Bina for valuable discussions.
(WILEY-VCH Verlag, 2006-03-27)
No Abstract
The maximum melting temperatures in strain-crystallized van der waals networks
(Steinkopff-Verlag; Steinkopff ; Springer Science+Business Media, 1985-04)
A theory of strain-crystallization of random networks comprised of stereoregular chains is developed. The crosslinks are assumed to be expelled from crystal cores. For this reason, the rubber is considered to be represented ...
Radiation-induced crosslinking: III. Effect on the crystalline and amorphous density fluctuations of polyethylene
(Steinkopff-Verlag; Springer Science+Business Media, 1991-04)
Small-angle x-ray scattering (SAXS) was used to determine density fluctuation in radiation-induced crosslinked polyethylene of varying degrees of crystallinity. Density fluctuation FL decreases with increasing crystallinity, ...
Thermodynamics of fusion in poly(diphenylsiloxane)
(John Wiley & Sons, Inc., 1980-02)
No Abstract.
Emulsion stability--experimental studies on simultaneous flocculation and creaming
(Elsevier, 1981-07)
An experimental technique has been developed to study the emulsion stability with simultaneous flocculation and creaming. Experiments were carried out by using different ionic strengths, two different dispersants in water ...