|
Type
|
Journal
Article
|
|
Author
|
Mahsa
Mehranfar
|
|
Author
|
Ravi
Gaikwad
|
|
URL
|
|
|
Volume
|
30
|
|
Issue
|
3
|
|
Pages
|
800-804
|
|
Publication
|
Langmuir
|
|
Date
|
2014
|
|
Abstract
|
Researchers
employed atomic force microscopy to observe the structural changes in
petroleum asphaltene aggregates in air as a function of temperature. They obtained
aggregates by evaporating a toluene solution containing asphaltene. They
observed that temperature increases lead to transition from self-assembled
fractal structures to substantially larger mobile liquid-like domains exhibiting
distinct tendencies of substrate repulsion and self-coalescence.
The new aggregation dynamics of asphaltene can be explained by temperature-induced transition of asphaltene from pure amorphous to liquid crystalline phase. Observation of this new phenomenon for asphaltene could have wide implications for asphaltene handling and separation. |
Tuesday, December 16, 2014
Effect of Temperature on Morphologies of Evaporation-Triggered Asphaltene Nanoaggregates
Effect
of Temperature on Morphologies of Evaporation-Triggered Asphaltene
Nanoaggregates
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