In 2017, the students' research projects explored coral resilience to high ocean temperatures, the physics of sea flow and its impacts on seagrass beds, the density of coral skeletons, behaviors of fish communities, and the characterization of oxygen concentrations in different parts of the ocean.
The surface characterization of oxygen ion implanted Ti 50.7 at% Ni alloy samples was performed with the assistance of Auger electron spectroscopy, X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy techniques (TEM).
The capability, versatility and limits of this equipment are demonstrated through the following case studies: (1) deactivation and kinetic study of o-xylene hydrogenation, (2) characterization of oxygen storage capacity (OSC) of metal/ceria-doped catalysts and (3) HT gas adsorption on microporous materials.
Through-plane liquid water saturation distributions were measured in situ using synchrotron X-ray radiography while simultaneously performing limiting current-based characterizations of oxygen transport resistance.
A novel synchrotron-based technique "high angular resolution 3DXRD" is presented in detail, and applied to the characterization of oxygen-free, high-conductivity copper at a tensile deformation of 2%.
XPS characterization shows that oxygen vacancy defects resulting from carbon doping present in TiO2-C.
In addition, the reported results show that electrochemical measurements in molten oxides coupled with mass-transfer models are complementary characterization tools for oxygen chemistry.
An X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscope (SEM) are used to evaluate the phase characterization of reacted oxygen carrier, and the formation mechanisms of the gaseous products of sulfur species are elucidated in the process of chemical looping combustion with a gaseous fuel containing hydrogen sulfide.
We present the development and characterization of fluorescent oxygen-sensing microparticles designed for measuring oxygen concentration in microenvironments existing within standard cell culture and transparent three-dimensional (3D) cell scaffolds.
Spectroscopic characterizations reveal that oxygen functionalization in the Pt/CB_O catalyst partially oxidizes the Pt nanoparticles, triggering facile dissolution and Ostwald ripening of Pt nanoparticles, which accelerates the decline of the ORR activity of Pt CB_O.
