Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-14965-2018 |
The quasi-liquid layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies | |
Constantin, Julian Gelman1,2,3; Gianetti, Melisa M.2; Longinotti, Maria P.2; Corti, Horacio R.1,2 | |
2018-10-18 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:20页码:14965-14978 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina |
英文摘要 | In this work, we present new results of atomic force microscopy (AFM) force curves over pure ice at different temperatures, performed with two different environmental chambers and different kinds of AFM tips. Our results provide insight to resolve the controversy on the interpretation of experimental AFM curves on the ice-air interface for determining the thickness of the quasi-liquid layer (QLL). The use of a Mini Environmental Chamber (mEC) that provides an accurate control of the temperature and humidity of the gases in contact with the sample allowed us for the first time to get force curves over the ice-air interface without jump-in (jump of the tip onto the ice surface, widely observed in previous studies). These results suggest a QLL thickness below 1 nm within the explored temperature range ( - 7 to -2 degrees C). This upper bound is significantly lower than most of the previous AFM results, which suggests that previous authors overestimate the equilibrium QLL thickness, due to temperature gradients, or indentation of ice during the jump-in. Additionally, we proved that the hydrophobicity of AFM tips affects significantly the results of the experiments. Overall, this work shows that, if one chooses the experimental conditions properly, the QLL thicknesses obtained by AFM lie over the lower bound of the highly disperse results reported in the literature. This allows estimating upper boundaries for the QLL thicknesses, which is relevant to validate QLL theories and to improve multiphase atmospheric chemistry models. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447744000002 |
WOS关键词 | ATOMIC-FORCE MICROSCOPY ; X-RAY-SCATTERING ; MOLECULAR-DYNAMICS ; TRANSITION LAYER ; SURFACE ; FILMS ; GROWTH ; SNOW ; PHOTOCHEMISTRY ; SPECTROSCOPY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/17246 |
专题 | 地球科学 |
作者单位 | 1.Comis Nacl Energia Atom, Dept Fis Mat Condensada, Ctr Atom Constituyentes, B1650KNA, Buenos Aires, DF, Argentina; 2.Univ Buenos Aires, Inst Quim Fis Mat Medio Ambiente & Energia UBA CO, Fac Ciencias Exactas & Nat, Pabellon 2,Ciudad Univ,C1428EGA, Buenos Aires, DF, Argentina; 3.Comis Nacl Energia Atom, Div Quim Atmosfer, Ctr Atom Constituyentes, B1650KNA, Buenos Aires, DF, Argentina |
推荐引用方式 GB/T 7714 | Constantin, Julian Gelman,Gianetti, Melisa M.,Longinotti, Maria P.,et al. The quasi-liquid layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(20):14965-14978. |
APA | Constantin, Julian Gelman,Gianetti, Melisa M.,Longinotti, Maria P.,&Corti, Horacio R..(2018).The quasi-liquid layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(20),14965-14978. |
MLA | Constantin, Julian Gelman,et al."The quasi-liquid layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.20(2018):14965-14978. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论