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DOI	10.1016/j.epsl.2019.115996
	Single particle triboelectrification of Titan sand analogs
	Yu X.; Hörst S.M.; He C.; McGuiggan P.
发表日期	2020
ISSN	0012821X
卷号	530
英文摘要	Sand electrification is important for aeolian sediment transportation on terrestrial bodies with silicate sand as the main sediment composition. However, it has not been thoroughly studied for icy bodies such as Titan with organic sand as the main dune-forming material. We used the colloidal probe atomic force microscopy (AFM) technique to study triboelectric charging processes using Titan and Earth sand analogs. We found that it is easy to generate triboelectric charges between naphthalene (a simple aromatic hydrocarbon), polystyrene (an aromatic hydrocarbon polymer), and borosilicate glass (Earth silicate sand analog). Strong electrostatic forces can be measured after contact and/or tribocharging. In contrast, tholin, a complex organic material, does not generate any detectable electrostatic forces with contact or tribocharging within the detection limit of the instrument. If Titan sand behaves more like tholin, this indicates that the tribocharging capacity of Titan sand is much weaker than Earth silicate sand and much less than previously measured by Méndez Harper et al. (2017), where only simple organics were used for Titan sand analogs. Thus, triboelectrification may not contribute to increasing interparticle forces between sand particles on Titan as much as on Earth. Interparticle forces generated by other electrostatic processes or other interparticle forces such as van der Waals and capillary cohesion forces could be the dominant interparticle forces that govern Titan sand formation and sediment transportation on the surface. Titan sand is also unlikely to produce large electrical discharge through tribocharging to affect future missions to Titan's surface. © 2019 Elsevier B.V.
关键词	aeolian processes atomic force microscopy material characterization tholin Titan triboelectrification
英文关键词	Aromatic polymers; Atomic force microscopy; Borosilicate glass; Electric discharges; Electrostatic devices; Electrostatic force; Mineral oils; Naphthalene; Sediments; Silicates; Van der Waals forces; Aeolian process; Material characterizations; tholin; Titan; Triboelectrification; Sand; analog model; atomic force microscopy; electrification; eolian process; particulate matter; sand; Titan
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202994
作者单位	Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States; Department of Earth and Planetary Sciences, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, United States; Department of Materials Science and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States
推荐引用方式 GB/T 7714	Yu X.,Hörst S.M.,He C.,et al. Single particle triboelectrification of Titan sand analogs[J],2020,530.
APA	Yu X.,Hörst S.M.,He C.,&McGuiggan P..(2020).Single particle triboelectrification of Titan sand analogs.Earth and Planetary Science Letters,530.
MLA	Yu X.,et al."Single particle triboelectrification of Titan sand analogs".Earth and Planetary Science Letters 530(2020).