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Full-Text Articles in Physical Sciences and Mathematics
Investigation Of Spillover Effect To Enhance Hydrogen Storage, Sarah C. Corrigan, Lin Simpson, Thomas Gennett
Investigation Of Spillover Effect To Enhance Hydrogen Storage, Sarah C. Corrigan, Lin Simpson, Thomas Gennett
STAR Program Research Presentations
Hydrogen is an attractive energy option because of its low
environmental impact, but a critical problem is its low energy
density, which makes it difficult to store. For example, the US
Department of Energy (DOE) hydrogen plan for fuel cell powered
vehicles requires a gravimetric density of 6.5 wt%. There are several
existing hydrogen storage methods, including compressed gas,
liquefaction, metal hydrides, and physisorption, but at present, none
of these technologies comes close to achieving the targets set by the
DOE. Although chemical storage methods have been claimed to be the
most promising hydrogen storage technology, and activated carbons the …
Phoenix Mars Mission Wet Chemistry Laboratory Detection Limit Of Martian Soil Oxidants, Lauren B. Petersen, Richard C. Quinn Dr.
Phoenix Mars Mission Wet Chemistry Laboratory Detection Limit Of Martian Soil Oxidants, Lauren B. Petersen, Richard C. Quinn Dr.
STAR Program Research Presentations
This project utilizes the Microscopy, Electrochemistry, and Conductivity Analyzer (MECA) Wet Chemistry Laboratory Testbed (WCL), a payload component of the NASA Phoenix Mars Mission, to analyze Mars soil analogs to find the limits of detection for various compounds of interest- including peroxides, chlorates, sulfates, and other oxidants. When the Phoenix Rover landed in the northern plains of Mars in the summer of 2008, three soil samples were analyzed for soluble components. In this analysis, large amounts of perchlorate were detected. Now, we are relooking at the Phoenix data to see if it shows evidence of other oxidants. The electrochemical techniques …
Quantification And In Vitro Analysis Of Nanolipoproteins (Nlps) Containing Adjuvants, Purna Venkataraman, Craig Blanchette, Nicholas O. Fischer
Quantification And In Vitro Analysis Of Nanolipoproteins (Nlps) Containing Adjuvants, Purna Venkataraman, Craig Blanchette, Nicholas O. Fischer
STAR Program Research Presentations
Nanolipoprotein particles (NLPs) self-assemble into nanoscale structures that can be used as vaccines or drug delivery agents. Due to the nature of the NLPs, a variety of immune stimulating compounds or adjuvants can be readily incorporated into NLPs: a characteristic difficult to engineer into most other nanoscale platforms. In light of this, a method for quantifying the amount adjuvant actually incorporated into NLPs is a question of high importance. Through the use of reverse phase High-Performance Liquid Chromatography (HPLC) and an Evaporative Light Scattering Detector (ELSD), standard curves can be constructed by analyzing mixtures of NLP components of known concentration, …
Synthesis And Characterization Of Graphene Oxide, Jeremy A. Waddell, Arthur Cheng, Bin Chen
Synthesis And Characterization Of Graphene Oxide, Jeremy A. Waddell, Arthur Cheng, Bin Chen
STAR Program Research Presentations
Graphene, a single atomic layer of sp2 carbon atoms, has gotten a lot of attention from the scientific community because of its excellent mechanical and electronic properties. The mechanical exfoliation methods used to obtain graphene nanosheets are not effective for large scale manufacturing, so scalable synthesis approaches from structurally similar compounds are of great scientific interest. Graphene oxide is one such compound which is synthesized through the oxidation of graphite powder. The oxidation was performed using a modification of the previous experimental procedure. After synthesis, the powder was fabricated into graphene oxide films through vacuum filtration and transfer to …