RT Journal Article
T1 Nanoscale observations of the effect of cobalt on calcitegrowth and dissolution
A1 Freij, Sawsan J.
A1 Putnis, Andrew
A1 Astilleros García-Monge, José Manuel
AB In situ atomic force microscopy has been used to study the effect of dissolved cobalt on the growth and dissolution ofcalcite {10.4} surfaces. Growth experiments conducted in the presence of various cobalt concentrations revealed thatthe growth of the first layer proceeds with step growth and is faster than the growth in pure solution. The subsequentgrowth on the newly formed surfaces is much slower, although the solution supersaturation is kept constant. Thisdifference in the step velocity leads to the temporary reproduction of the original surface topography (template effect).This demonstrates the role of the substrate surface structure in the crystal growth. In situ dissolution experimentsconducted in the presence of cobalt revealed that cobalt is sorbed at the negative (acute) kinks leading to the formationof monomolecular semi-triangular etch pits.
PB Elsevier Science B.V.
SN 0022-0248
YR 2004
FD 2004
LK https://hdl.handle.net/20.500.14352/50337
UL https://hdl.handle.net/20.500.14352/50337
LA eng
DS Docta Complutense
RD 2 may 2024