
Nanoworld webquests with peer review
Web interfaces to activities developed for (i) a walk-thru audience at the St. Louis Science Center and (ii) an introductory chemistry class are discussed.
This project is about "walk-in" investigations that emerged as a result of our role in support of scientific collaborators across the region.
The nanoworld is often quite protective of its secrets. Just as when the forces of nature in the large prompt members of our species to join forces, so are researchers with expertise and access to tools often inspired to team up to try solving challenges that arise.
We've sometimes been lucky enough to be able to help. In the process, we've promoted adherence to an ethics of analytical support, which means that not all of the information on projects shared with us by colleagues is available on-line.
University of Missouri at Saint Louis
Web interfaces to activities developed for (i) a walk-thru audience at the St. Louis Science Center and (ii) an introductory chemistry class are discussed.
We show here how the nano-frontier provides a robust setting for challenges which put the student in the shoes of real nano-world detectives.
Teaching insights on multiscale processes relevant to (i) everyday life, (ii) existing science courses, and (iii) skills for research in university & industry.
Single-walled carbon nanotubes (SWCNTs) are shown to grow rapidly on iron oxide catalysts on the fuel side of an inverse ethylene diffusion flame. The pathway …
Note about "two-armed physicists" (i.e. those trained to use their basic insights in the solution of BOTH fundamental and applied problems).
This paper investigates the impact of nanoparticle size, crystallinity and surface coverage on catalytic activity of ~1.6 nm size Pt nanoparticles.
We show here how the nano-frontier provides a robust setting for challenges which put the student in the shoes of real nano-world detectives.
Teaching insights on multiscale processes relevant to (i) everyday life, (ii) existing science courses, and (iii) skills for research in university & industry.
Single-walled carbon nanotubes (SWCNTs) are shown to grow rapidly on iron oxide catalysts on the fuel side of an inverse ethylene diffusion flame. The pathway …
Note about "two-armed physicists" (i.e. those trained to use their basic insights in the solution of BOTH fundamental and applied problems).
This paper investigates the impact of nanoparticle size, crystallinity and surface coverage on catalytic activity of ~1.6 nm size Pt nanoparticles.
Our role in this paper was to take and analyze high resolution TEM lattice images of these nanowire specimens.
Ternary ruthenium oxide oxidation catalysts are reported that function directly with molecular oxygen for the conversion of oxygenated hydrocarbon sub…
Pristine titania and vanadium- or iron-doped titania particles were synthesized in a tubular furnace reactor. Each sample was synthesized by different…
An aerosol tubular reactor system to synthesize nanostructured vanadium-doped titanium dioxide particles is described. The resultant particle size...
Our TEM work provided evidence that naked mylar is heavily eroded by low earth orbit space exposure, while tens of nanometers of metal coating can protect it.
This note (one of several on the topic) served as the basis for G. J. Flynn's dissertation experiment involving an experiment in S. Dakota's Homestake Gold Mine
The structure of B- and Er-containing dispersoids in rapidly solidified, dispersion-strengthened Ti-0.5at%Er, Ti-6at%B, Ti-25at%Al-0.5at%Er, Ti-25at%A…
The structure of the effective separating layer of an asymmetric polysulfone hollow fiber membrane with a graded density skin was studied by SEM, TEM, and...
The degree of fibrillation of a reinforcing fibre can be viewed as the extent to which the fibre has partially been split longitudinally into thinner fibrils. …
Five expanded lattice ruthenium pyrochlore oxide powders were investigated using high-resolution electron microscopy (HREM), X-ray photoelectron spectroscopy...
Here we discuss studies of carbon-enriched ZrB2 ceramics for ultrahigh temperature applications e.g. for the U.S. Air Force. Multi-micron ZrB2 matrix grains...
Collaboration with colleagues at Oak Ridge National Lab on gold-catalyzed growth of ZnO nanowires.
DNA molecules were explored as a template to synthesize Pt nanoparticles around the surface of carbon nanotubes, to connect nanotubes to electrodes.
Evaporation method synthesis of ATO nanostructures include tree-like, dendritic, flower-like, and hollow structures with square prism shape.
PECVD iron carbide films were examined by X-ray diffraction and transmission electron microscopy.
Electron diffraction & HR-TEM images show that the dominant phase in tungsten carbide thin films grown by plasma enhanced chemical vapor deposition is WC_(1−x).
Study in particular of TiMn quasicrystal approximants, like the orthorhombic unit cell system shown in the HR-TEM image above, down a 5-fold direction.
This was for a project on non-invasive brain-aneurism repair with an area company (Stereotaxis) that specializes in magnetic navigation for the health sciences.
