Co-adsorption of NH3 and SO2 on quartz (0001): Formation of a stabilized complex

M.L. Grecea; M.A. Gleeson; W. van Schaik; A.W. Kleyn; Frederik Bijkerk

doi:10.1016/j.cplett.2011.06.076

Co-adsorption of NH3 and SO2 on quartz (0001): Formation of a stabilized complex

M.L. Grecea, M.A. Gleeson, W. van Schaik, A.W. Kleyn, Frederik Bijkerk

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Abstract

We have investigated the co-adsorption of NH3 and SO2 on the quartz(0 0 0 1) surface by TPD and RAIRS. A surface complex is formed as a result of various relative exposures of NH3 and SO2, irrespective of dosage order. However, the relative molecular composition of the complex is dependent on the dosage order. Higher desorption temperatures of NH3 and SO2 from the co-adsorbed systems, as compared with the isolated adsorbates, demonstrate mutual stabilization in the adlayer. Formation of hydrogen bonds between NH3 and SO2 is suggested based on the strong decrease in IR cross-section of the symmetric deformation and asymmetric stretch modes of NH3 upon co-adsorption of SO2 and of the symmetric stretch mode of SO2 upon co-adsorption of NH3.

Original language	English
Pages (from-to)	270-276
Number of pages	7
Journal	Chemical physics letters
Volume	511
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2011.06.076
Publication status	Published - 2011

Keywords

METIS-277879
IR-104547

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10.1016/j.cplett.2011.06.076

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title = "Co-adsorption of NH3 and SO2 on quartz (0001): Formation of a stabilized complex",

abstract = "We have investigated the co-adsorption of NH3 and SO2 on the quartz(0 0 0 1) surface by TPD and RAIRS. A surface complex is formed as a result of various relative exposures of NH3 and SO2, irrespective of dosage order. However, the relative molecular composition of the complex is dependent on the dosage order. Higher desorption temperatures of NH3 and SO2 from the co-adsorbed systems, as compared with the isolated adsorbates, demonstrate mutual stabilization in the adlayer. Formation of hydrogen bonds between NH3 and SO2 is suggested based on the strong decrease in IR cross-section of the symmetric deformation and asymmetric stretch modes of NH3 upon co-adsorption of SO2 and of the symmetric stretch mode of SO2 upon co-adsorption of NH3.",

keywords = "METIS-277879, IR-104547",

author = "M.L. Grecea and M.A. Gleeson and {van Schaik}, W. and A.W. Kleyn and Frederik Bijkerk",

year = "2011",

doi = "10.1016/j.cplett.2011.06.076",

language = "English",

volume = "511",

pages = "270--276",

journal = "Chemical physics letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "4-6",

}

TY - JOUR

T1 - Co-adsorption of NH3 and SO2 on quartz (0001): Formation of a stabilized complex

AU - Grecea, M.L.

AU - Gleeson, M.A.

AU - van Schaik, W.

AU - Kleyn, A.W.

AU - Bijkerk, Frederik

PY - 2011

Y1 - 2011

N2 - We have investigated the co-adsorption of NH3 and SO2 on the quartz(0 0 0 1) surface by TPD and RAIRS. A surface complex is formed as a result of various relative exposures of NH3 and SO2, irrespective of dosage order. However, the relative molecular composition of the complex is dependent on the dosage order. Higher desorption temperatures of NH3 and SO2 from the co-adsorbed systems, as compared with the isolated adsorbates, demonstrate mutual stabilization in the adlayer. Formation of hydrogen bonds between NH3 and SO2 is suggested based on the strong decrease in IR cross-section of the symmetric deformation and asymmetric stretch modes of NH3 upon co-adsorption of SO2 and of the symmetric stretch mode of SO2 upon co-adsorption of NH3.

AB - We have investigated the co-adsorption of NH3 and SO2 on the quartz(0 0 0 1) surface by TPD and RAIRS. A surface complex is formed as a result of various relative exposures of NH3 and SO2, irrespective of dosage order. However, the relative molecular composition of the complex is dependent on the dosage order. Higher desorption temperatures of NH3 and SO2 from the co-adsorbed systems, as compared with the isolated adsorbates, demonstrate mutual stabilization in the adlayer. Formation of hydrogen bonds between NH3 and SO2 is suggested based on the strong decrease in IR cross-section of the symmetric deformation and asymmetric stretch modes of NH3 upon co-adsorption of SO2 and of the symmetric stretch mode of SO2 upon co-adsorption of NH3.

KW - METIS-277879

KW - IR-104547

U2 - 10.1016/j.cplett.2011.06.076

DO - 10.1016/j.cplett.2011.06.076

M3 - Article

SN - 0009-2614

VL - 511

SP - 270

EP - 276

JO - Chemical physics letters

JF - Chemical physics letters

IS - 4-6

ER -

Co-adsorption of NH3 and SO2 on quartz (0001): Formation of a stabilized complex

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