Projects per year
Personal profile
Research interests
Research Expertise:
Thin Film Synthesis | Materials Characterization | Materials Processing
My current research includes:
Broad spectrum bactericidal coatings are focused on silver-eluting coatings and the control of the elution rates. These coatings are synthesized by the sputtering of silver in an oxygen-rich reactive environment forming highly soluble silver oxide coatings with excellent adhesion to surfaces with bactericidal silver-ion elution rates much higher than nanoparticle silver.
Carbide-derived carbon (CDC) is a porous carbon material with a very narrow pore-size distribution. This material is synthesized by extracting reactive metals from binary or ternary carbides creating a coordinated network of mesoscopic pores. The pore-size distribution is influenced by the method used for extraction and parameters (temperature, reactive gas ow rate, etc.) used in the conversion. Our group has investigated the role of pre-cursor crystal structure on the ultimate performance of the CDC in a double layer capacitor.
The role of microstructure and composition in determining the performance of neuro-stimulation electrode coating materials has been investigated. The goal of this work is to optimize the charge transfer rate between the charge carriers in the coating and ionic charge in solution. The microstructure can be adjusted by adjusting the substrate, the substrate surface roughness and the coating deposition parameters.
Experiment Techniques:
Sputtering, optical lithography, XRD, RIE, SEM, AFM, FIB, EDS, WDXRF, specific heat, thermal transport, electrical transport, magnetization and magnetic susceptibility.
Member of:
Materials Research Society
American Physical Society
Society of Vacuum Coaters
Education/Academic qualification
Bachelor of Arts, Bachelor
Master of Arts, Master, Boston University
Doctor of Philosophy, doctorate, Boston University
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Network
Projects
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Development of multifunctional coatings for neurostimulation electrodes
New Jersey Health Foundation, Inc.
3/1/18 → 2/28/20
Project: Other project
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Research Output
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Electrochemical oxidation of metal carbides in aqueous solutions
Messner, M., Walczyk, D. J., Benjamin, G. P., Norris, Z. A., Taylor, G., Carroll, J., Pham, T. X., Hettinger, J. D. & Yu, L., 2018, In: Journal of the Electrochemical Society. 165, 4, p. H3107-H3114Research output: Contribution to journal › Article › peer-review
7 Scopus citations -
Electrochemical oxidation of niobium and tantalum carbides in aqueous solutions
Walczyk, D. J., Mason, D. F., Palazzo, B. G., Norris, Z. A., McRae, N., Tran, A. T., Hettinger, J. & Yu, L., Jan 1 2017, Selected Proceedings from the 231st ECS Meeting New Orleans, LA - Spring 2017. 11 ed. Electrochemical Society Inc., Vol. 77. p. 1599-1606 8 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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Evolution of magnetism in LnCuGa3 (Ln = La–Nd, Sm–Gd) studied via μSR and specific heat
Graf, M. J., Hettinger, J. D., Nemeth, K., Dally, R., Baines, C., Subbarao, U. & Peter, S. C., Dec 15 2017, In: Journal of Magnetism and Magnetic Materials. 444, p. 236-242 7 p.Research output: Contribution to journal › Article › peer-review
1 Scopus citations -
Silver oxide coatings with high silver-ion elution rates and characterization of bactericidal activity
Goderecci, S. S., Kaiser, E., Yanakas, M., Norris, Z., Scaturro, J., Oszust, R., Medina, C. D., Waechter, F., Heon, M., Krchnavek, R. R., Yu, L., Lofland, S. E., Demarest, R. M., Caputo, G. A. & Hettinger, J. D., Sep 2017, In: Molecules. 22, 9, 1487.Research output: Contribution to journal › Article › peer-review
11 Scopus citations -
Carbide-derived Carbon by electrochemical etching of vanadium carbides
Camargo, L. G. B., Palazzo, B. G., Taylor, G., Norris, Z. A., Patel, Y. K., Hettinger, J. D. & Yu, L., 2015, In: Journal of the Electrochemical Society. 162, 10, p. H811-H815Research output: Contribution to journal › Article › peer-review
13 Scopus citations