Effect of Dilute Nitric Acid on Crystallization and Fracture of Amorphous Solid Water Films

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• 作者：Sean M. McClure ; Evan T. Barlow ; Minta C. Akin ; Paul L. Tanaka ; Douglas J. Safarik ; Thomas M. Truskett ; C. Buddie Mullins
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：July 19, 2007
• 年：2007
• 卷：111
• 期：28
• 页码：10438 - 10447
• 全文大小：291K
• 年卷期：v.111,no.28(July 19, 2007)
• ISSN：1932-7455

文摘

Thermal desorption spectroscopy (TDS) is employed to investigate the effects of dilute HNO₃ (0-2.2 mol%) on the crystallization-induced fracture/morphology changes that occur in nanoscale amorphous solid water(ASW) films. Gas uptake measurements (CClF₂H) on annealed pure and HNO₃-doped films are conducted toinvestigate changes in film morphology/surface area during annealing and crystallization. These measurementsdemonstrate that dilute amounts of HNO₃ within thin ASW films reduce the extent of film fracture duringcrystallization and also accelerate crystallization.