AI Article Synopsis
- The study measured specific heats of 7 nm TiO2 anatase and rutile nanoparticles at temperatures between 15-350 K, focusing on the impact of surface-adsorbed water.
- As water content was reduced while keeping particle size consistent, two distinct behaviors of water were noted.
- The findings suggest that the specific heats of the bare nanoparticles are comparable to those of the bulk material, challenging earlier literature claims.
Article Abstract
Specific heats (15-350 K) have been measured on 7 nm TiO2 anatase and rutile nanoparticles containing significant amounts of surface-adsorbed water. By successively reducing the water content without changing particle size, we observed two types of water behavior. The specific heat of bare 7 nm particles was estimated using the water specific heats. Contrary to previous literature reports, the bare small particle specific heats are the same as those of the bulk, within experimental error.
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| http://dx.doi.org/10.1021/nl0600169 | DOI Listing |
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