AN EXAMINATION OF PRECIPITATION AND DISSOLUTION
PRODUCTS OF CALCIUM CARBONATE IN A MARINE
ENVIRONMENT
Though CaCO3 can be found in myriad environments around the globe, and has been studied for decades, a great deal of fundamental knowledge is still lacking concerning its precipitation, dissolution, crystal growth and interaction with its surroundings. This body of research becomes especially pertinent as levels of CO2 in upper ocean waters continue to rise. This threatens not only the marine life actually made of calcium carbonate, but the variety of ecosystems dependent on it, including the human ones.
Before being able to accurately predict the repercussions of rising CO2 though, one must rst understand the basic science behind the behavior of CaCO3 in seawater. Consequently, this research examines two growth regimes, the rst over a period of 10 hours, and the second over a period of 45 days. Characterization takes place from the micro to the nano regimes, using such techniques as x-ray diraction, grazing incidence x-ray diraction, Raman, x-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersive x-ray spectroscopy, and transmission electron microscopy.
This research concludes that CaCO3 grows by the Stranski-Krastanov process, beginning with layer by layer growth. Lattice mismatch eventually transforms this to 3D island growth. Additionally, evidence was found that both high magnesian calcite and aragonite are present on the same growth planes. However, not every growth plane grows in the same way. The long growth experiment especially raises many interesting questions and potential directions for future work.
Team Spirit Award, ADA Carbon SolutionsMay 2013
Scholarship recipient to attend “Materials for Renewable Energy” school in Erice, Italy; “3D Atomic Scale Imaging of Dopants in Quantum Structured Si;” SG Claire, B Simonds, D Diercks, I Perez-Wurfl, Y. Heng-So, R Kirchofer, PC Taylor, BP Gorman; Colorado School of Mines, Golden, CO; The University of New South Wales, Sydney; July 2012
Distinguished Scholar Award, Microanalysis SocietyAugust 2011
“TEM and AtomProbe Investigation of Calcium Carbonate Precipitation in Seawater;” SG Claire, DR Diercks, R Kirchofer, BP Gorman.
Presidential Scholar Award, Microscopy Society of AmericaAugust 2010
“TEM Investigations of Amorphous Calcium Carbonate Formation in Seawater;” SG Claire, BP Gorman.
Sorbent Compositions having Pneumatic Conveyance Capabilities
Jessica Claire, Jacqueline Cecil de Peyer, Robert Huston, Joe Wong
United States 14/145,731Filed 12/31/13
Baghouse Optimized Sorbent composition;
Jessica Claire, Ariel Li, Robert Huston, Joe Wong.
United States 62/086,292Filed 12/2/2014
Sorbents with Improved Flow Capabilities
Jessica Claire, Brian Leen, Jacob Lowring.
United States 14/201,398Filed 3/6/14
Temporary Agglomeration of Sorbent Particles to Improve conveyance and Sorption Properties
Jessica Claire, Joe Wong, Robert Huston, Brian Leen
United States 62/083,630Filed 11/24/2014
Pilot High Sulfur TOXECON Baghouse with Activated Carbon Injection;
Jessica Claire (ADA Carbon Solutions), Noah Meeks (Southern Company), Ramsay Chang (EPRI)
Electric PowerPresented April 23, 2015
“3D Atomic Scale Imaging of Dopants in Quantum Structured Si;” SG Claire, B Simonds, D Diercks, I Perez-Wurfl, Y. Heng-So, R Kirchofer, PC Taylor, BP Gorman; Colorado School of Mines, Golden, CO; The University of New South Wales, Sydney; July 2012
“TEM and AtomProbe Investigation of Calcium Carbonate Precipitation in Seawater;” SG Claire, DR Diercks, R Kirchofer, BP Gorman. August 2011
“TEM Investigations of Amorphous Calcium Carbonate Formation in Seawater;” SG Claire, BP Gorman. August 2010
AIChEFebruary 2015 – Present
R&D Work Life Balance CommitteeFebruary 2015 – Present
One of a two member committee, duties included interviewing R&D colleagues, and using six sigma techniques to elucidate the voice of the customer to improve the R&D team’s sense of work life balance.
Society of Women EngineersJanuary 2012 – Present
Microanalysis societyMay 2012 – Present
Denver Kids – MentorApril 2011 - Present
Mentor to a Denver Public School student, in a “big sister” type role.
Employee Engagement committeeMay 2013 – January 2015
One of a 5 member company-committee, organized to offer opportunities for employee engagement, including health, nutrition, fitness, community service, and events. Responsible for engaging our community service partner for the year.
capital acquisitions, approach, APT, conferences, content, continuous improvement, curriculum development, failure analysis, laboratory equipment, laboratory tests, regulatory compliance, logistics, manufacturing process, Materials, math, Minitab, new product development, novel, obtaining permit, processes, quality, QA, quick, Research, sales, Scanning electron microscopy, scientific writing, Six Sigma, Lean, statistical analysis, Teaching, Transmission electron microscopy, troubleshoot, troubleshooting, tutoring, X-Ray, visual and verbal communication