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Research Interests:
Cristian Contescu is a research staff member of Carbon Materials Technology (CMT) Group, in the Materials Science and Technology Division at ORNL. His research interests include:
- surface chemistry of carbon materials at solid-electrolyte and solid-gas interfaces;
- acid-base and redox properties of surface functional groups on carbons and of their impact on gas adsorption, separation and gas storage properties;
- adsorption and catalytic properties of high surface area carbons, and their use as catalyst supports;
- controlled development of microporosity in carbons by activation;
- gas storage (H2, CH4) in microporous and metal-modified carbon materials.
Selected current research themes include:
- Contribution of hydrogen dissociation on metal catalyst particles and hydrogen spillover to enhanced hydrogen adsorption by palladium-modified activated carbon fibers at near ambient temperature.
- Identification of molecular and dissociative forms of hydrogen adsorbed on metal-modified high surface area carbons, characterization of adsorption equilibrium and dynamics, and identification of catalytically active phases involved in low-temperature hydrogenation of unsaturated carbon sites.
- Development of high surface area carbons as catalyst supports, and understanding the effect of synthesis conditions on the stability and properties of dispersed catalyst particles (precious metals and metal-carbide particles)
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