University of South Florida

Xiaoling Ding

Norma Arcelia Alcantar

Andres M Cardenas-Valencia

Ryan Gates Toomey

David P Fries

Lawrence C Langebrake

Larry C Langebrake

A system and method for improving electrochemical power sources through the dispensing encapsulation and dispersion into galvanic chambers of an electrochemical cell. Features of the method include the optimization of the concentration levels of chemicals involved in desired energy producing reactions.

Method of controlled delivery for use in electrochemical power sources

A system and method for improving electrochemical power sources through the dispensing, encapsulation and dispersion into galvanic chambers of an electrochemical cell. Features of the method include the optimization of the concentration levels of chemicals involved in desired energy producing reactions.

Method of controlled delivery for use of electrochemical power source

A method for the formation of regular-shaped silver crystals through a wet chemical reaction (Tollen's reaction) is presented. The growth of the Ag crystals (size, morphology and aggregation) can be controlled via adjusting reaction conditions such as temperature and reducing agent concentrations before and during the reactions. The smaller Ag crystals (50-200 nm) were generated under the condition of limited reductive reagent (glucose), and the larger sliver crystals (&#x2dc;5 &#x3bc;m) were the aggregated silver nano-particles (100-200 nm) produced at higher reducing agent concentrations. Most of the larger crystals were in the shape of cube or rectangular cube, and rarely, they were in clusters. The smaller crystals (aggregation of Ag atoms) were shaped in cube or/and cone, and both single crystals and clusters were formed. The presence of impurity (TiO2 nano-particles, 25-50 nm) as crystal seeds enables the 3-D growth of large, irregular-shaped Ag clusters (&#x2dc;5 &#x3bc;m).

Silver crystals through Tollen's reaction

The instant invention provides for a gas purification system in which a reaction chamber combines with catalysts and heating to oxidize and reduce the compounds contained in a gas stream to oxygen and other non-deleterious components. By use of this system closed loop air systems can be effectively supplied with oxygen by chemically converting the volatile organic components to desired gasses and thereby remove unwanted contaminants.

Catalytic air purification system

A method for making a patterned SiOfilms over TiO(Si0/Ti0) under ambient atmospheric conditions, including room temperature, through photo and chemical reactions. The method is simple, convenient and can be performed in a short period of time, typically less than two hours. The patterned TiOfilm is fabricated through photo-irradiation of a photosensitive organic-titanium film using a mask. Silica particles are generated from silicate solution by adjusting pH values to 10 to 8 with hydrochloric acid. The pre-deposited TiOfilm has a strong attraction for the SiOparticles, leading to the instant formation of SiOfilm over the TiOfilm. The silica films are also amino-silylated with 3-aminopropyltriethoxysilane toward applications such as patternable, location-specific silica-based separation and purification.

Growing community of inventors

St. Petersburg, FL, United States of America

Xiaoling Ding