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DOI | 10.1126/science.aai8034 |
Active sites in heterogeneous ice nucleation-the example of K-rich feldspars | |
Kiselev, Alexei1; Bachmann, Felix1,2; Pedevilla, Philipp3,4; Cox, Stephen J.3,4; Michaelides, Angelos3; Gerthsen, Dagmar2; Leisner, Thomas1,5 | |
2017-01-27 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6323页码:367-371 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Canada |
英文摘要 | Ice formation on aerosol particles is a process of crucial importance to Earth's climate and the environmental sciences, but it is not understood at the molecular level. This is partly because the nature of active sites, local surface features where ice growth commences, is still unclear. Here we report direct electron-microscopic observations of deposition growth of aligned ice crystals on feldspar, an atmospherically important component of mineral dust. Our molecular-scale computer simulations indicate that this alignment arises from the preferential nucleation of prismatic crystal planes of ice on high-energy (100) surface planes of feldspar. The microscopic patches of (100) surface, exposed at surface defects such as steps, cracks, and cavities, are thought to be responsible for the high ice nucleation efficacy of potassium (K)-feldspar particles. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393172800031 |
WOS关键词 | CRYSTAL NUCLEATION ; EPITAXIAL-GROWTH ; WATER-ADSORPTION ; KAOLINITE ; SURFACES ; DEPOSITION ; PARTICLES ; MINERALS ; DUST ; MORPHOLOGY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195308 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Karlsruhe Inst Technol KIT, Inst Meteorol & Climate Res IMK AAF, Atmospher Aerosol Res Dept, Hermann Helmholtz Platz, Karlsruhe, Germany; 2.KIT, Lab Elect Microscopy LEM, Engesserstrasse 7, D-76131 Karlsruhe, Germany; 3.Univ Coll London UCL, Thomas Young Ctr, London Ctr Nanotechnol, 17-19 Gordon St, London, ON WC1H 0AH, Canada; 4.Univ Coll London UCL, Dept Phys & Astron, 17-19 Gordon St, London, ON WC1H 0AH, Canada; 5.Heidelberg Univ, Inst Umweltphys, Im Neuenheimer Feld 229, Heidelberg, Germany |
推荐引用方式 GB/T 7714 | Kiselev, Alexei,Bachmann, Felix,Pedevilla, Philipp,et al. Active sites in heterogeneous ice nucleation-the example of K-rich feldspars[J]. SCIENCE,2017,355(6323):367-371. |
APA | Kiselev, Alexei.,Bachmann, Felix.,Pedevilla, Philipp.,Cox, Stephen J..,Michaelides, Angelos.,...&Leisner, Thomas.(2017).Active sites in heterogeneous ice nucleation-the example of K-rich feldspars.SCIENCE,355(6323),367-371. |
MLA | Kiselev, Alexei,et al."Active sites in heterogeneous ice nucleation-the example of K-rich feldspars".SCIENCE 355.6323(2017):367-371. |
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