Adsorption of Aldehydes on a Graphite Substrate: Combined Thermodynamic Study of C6−C13 Homologues with a Structural and Dynamical Study of Dodecanal
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- 作者：Tamsin K. Phillips ; Tej Bhinde ; Stuart M. Clarke ; Seung Y. Lee ; Kunal S. Mali ; Steven De Feyter
- 刊名：Journal of Physical Chemistry C
- 出版年：2010
- 出版时间：April 8, 2010
- 年：2010
- 卷：114
- 期：13
- 页码：6027-6034
- 全文大小：429K
- 年卷期：v.114,no.13(April 8, 2010)
- ISSN：1932-7455
文摘
In this work we present a study on the adsorption of linear alkyl aldehydes physisorbed from their bulk liquid onto a graphite substrate combining calorimetry for all homologues from C6 to C13, with more detailed diffraction, incoherent neutron scattering, and scanning tunneling microscopy techniques for one (C12) representative member. We identify solid monolayer formation for some of these species for alkyl chain lengths of 6 to 13 carbons at high surface coverages. The C12 monolayer structure is determined to be most likely Pgg and this structure is discussed in terms of the importance of dipolar interactions.