The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals.
The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals.
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DOI:
10.1002/anie.201706800
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发表时间:
2017-09-18
期刊:
影响因子:
--
通讯作者:
Meldrum FC
中科院分区:
文献类型:
--
作者:
Kim YY;Freeman CL;Gong X;Levenstein MA;Wang Y;Kulak A;Anduix-Canto C;Lee PA;Li S;Chen L;Christenson HK;Meldrum FC
As crystallization processes are often rapid, it can be difficult to monitor their growth mechanisms. In this study, we made use of the fact that crystallization proceeds more slowly in small volumes than in bulk solution to investigate the effects of the soluble additives Mg2+ and poly(styrene sulfonate) (PSS) on the early stages of growth of calcite crystals. Using a “Crystal Hotel” microfluidic device to provide well‐defined, nanoliter volumes, we observed that calcite crystals form via an amorphous precursor phase. Surprisingly, the first calcite crystals formed are perfect rhombohedra, and the soluble additives have no influence on the morphology until the crystals reach sizes of 0.1–0.5 μm for Mg2+ and 1–2 μm for PSS. The crystals then continue to grow to develop morphologies characteristic of these additives. These results can be rationalized by considering additive binding to kink sites, which is consistent with crystal growth by a classical mechanism.
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影响因子:
19
作者:
Ihli, Johannes;Bots, Pieter;Meldrum, Fiona C.
通讯作者:
Meldrum, Fiona C.
影响因子:
16.6
作者:
Ihli J;Wong WC;Noel EH;Kim YY;Kulak AN;Christenson HK;Duer MJ;Meldrum FC
通讯作者:
Meldrum FC
影响因子:
3.7
作者:
Freeman, Cohn L.;Harding, John H.
通讯作者:
Harding, John H.
影响因子:
4.9
作者:
Kerisit, S;Parker, SC
通讯作者:
Parker, SC
DOI:
10.1002/adma.201503931
发表时间:
2015-12-02
期刊:
Advanced materials (Deerfield Beach, Fla.)
影响因子:
--
作者:
Gong X;Wang YW;Ihli J;Kim YY;Li S;Walshaw R;Chen L;Meldrum FC
通讯作者:
Meldrum FC