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Experimental and computational study of the dissolution mechanism of Portlandite nano-crystals


Reference:

Pesce, G., Molinari, M., Grant, R., Parker, S. and Ball, R., 2016. Experimental and computational study of the dissolution mechanism of Portlandite nano-crystals. In: Euro AFM Forum, 2016-06-22 - 2016-06-24, Ecole de physique, University of Geneva.

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Abstract

This research combines experimental and computational techniques to investigate the Ca(OH)2–H2O system to elucidate the properties of Ca(OH)2 focusing on morphological and dimensional crystal changes. AFM images taken under controlled conditions highlighted the dissolution mechanism of nano-sized crystals of portlandite. Ab-initio computational data for the adsorption of H2O on portlandite surfaces were developed considering the experimental results. Results demonstrated the ease of calcium surface ion removal from prismatic faces. These are of great importance for a number of materials used in environmental and industrial applications such as ex-situ CO2 capture and storage, and scrubbing procedures of municipal solid waste incinerators.

Details

Item Type Conference or Workshop Items (Paper)
CreatorsPesce, G., Molinari, M., Grant, R., Parker, S. and Ball, R.
Uncontrolled Keywordsafm
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
Faculty of Science > Chemistry
Research CentresBRE Centre in Innovative Construction Materials
Centre for Sustainable Chemical Technologies
EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
RefereedYes
StatusUnpublished
ID Code50987

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