Adsorption and Desorption of NO and NO2 Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry

Masato Yamaguchi; Fumitaka Mafuné

doi:10.1021/acs.jpcc.9b02629

Adsorption and Desorption of NO and NO₂ Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry

Masato Yamaguchi, Fumitaka Mafuné

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7 Citations (Scopus)

Abstract

The adsorption and thermal desorption of NO and NO₂ molecules on gold cluster anions, Au₄^-, were experimentally observed using gas-phase thermal desorption spectrometry. Multiple collisions of NO molecules with Au₄^- at 300 K generated Au₄(NO)_k^- (k = 1-3). The NO molecules desorbed from the clusters in a stepwise manner when the clusters were heated, and finally Au₄^- was regenerated above 600 K. For NO₂, Au₄N₂O₄^- was found to be thermally unstable. Hence, two NO₂ molecules were sequentially released from Au₄N₃O₆^-, when Au₄N₃O₆^- was heated at 500-800 K, forming Au₄NO₂^-. A gold oxide cluster, Au₄O₂^-, was produced as a result of the decomposition of NO₂ to NO and O on Au₄^-, and the NO molecules were released above 900 K.

Original language	English
Pages (from-to)	15575-15581
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	123
Issue number	25
DOIs	https://doi.org/10.1021/acs.jpcc.9b02629
Publication status	Published - Jun 27 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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@article{3c488ab787944edc980bfe4cefa97220,

title = "Adsorption and Desorption of NO and NO2 Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry",

abstract = "The adsorption and thermal desorption of NO and NO2 molecules on gold cluster anions, Au4-, were experimentally observed using gas-phase thermal desorption spectrometry. Multiple collisions of NO molecules with Au4- at 300 K generated Au4(NO)k- (k = 1-3). The NO molecules desorbed from the clusters in a stepwise manner when the clusters were heated, and finally Au4- was regenerated above 600 K. For NO2, Au4N2O4- was found to be thermally unstable. Hence, two NO2 molecules were sequentially released from Au4N3O6-, when Au4N3O6- was heated at 500-800 K, forming Au4NO2-. A gold oxide cluster, Au4O2-, was produced as a result of the decomposition of NO2 to NO and O on Au4-, and the NO molecules were released above 900 K.",

author = "Masato Yamaguchi and Fumitaka Mafun{\'e}",

note = "Funding Information: The calculations were performed in part using the facilities of the Research Center for Computational Science, Okazaki, Japan. This work was supported in part by JSPS KAKENHI, Grant-in-Aid for JSPS Fellows (no. JP18J21934). Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = jun,

day = "27",

doi = "10.1021/acs.jpcc.9b02629",

language = "English",

volume = "123",

pages = "15575--15581",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

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T1 - Adsorption and Desorption of NO and NO2 Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry

AU - Yamaguchi, Masato

AU - Mafuné, Fumitaka

N1 - Funding Information: The calculations were performed in part using the facilities of the Research Center for Computational Science, Okazaki, Japan. This work was supported in part by JSPS KAKENHI, Grant-in-Aid for JSPS Fellows (no. JP18J21934). Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/6/27

Y1 - 2019/6/27

N2 - The adsorption and thermal desorption of NO and NO2 molecules on gold cluster anions, Au4-, were experimentally observed using gas-phase thermal desorption spectrometry. Multiple collisions of NO molecules with Au4- at 300 K generated Au4(NO)k- (k = 1-3). The NO molecules desorbed from the clusters in a stepwise manner when the clusters were heated, and finally Au4- was regenerated above 600 K. For NO2, Au4N2O4- was found to be thermally unstable. Hence, two NO2 molecules were sequentially released from Au4N3O6-, when Au4N3O6- was heated at 500-800 K, forming Au4NO2-. A gold oxide cluster, Au4O2-, was produced as a result of the decomposition of NO2 to NO and O on Au4-, and the NO molecules were released above 900 K.

AB - The adsorption and thermal desorption of NO and NO2 molecules on gold cluster anions, Au4-, were experimentally observed using gas-phase thermal desorption spectrometry. Multiple collisions of NO molecules with Au4- at 300 K generated Au4(NO)k- (k = 1-3). The NO molecules desorbed from the clusters in a stepwise manner when the clusters were heated, and finally Au4- was regenerated above 600 K. For NO2, Au4N2O4- was found to be thermally unstable. Hence, two NO2 molecules were sequentially released from Au4N3O6-, when Au4N3O6- was heated at 500-800 K, forming Au4NO2-. A gold oxide cluster, Au4O2-, was produced as a result of the decomposition of NO2 to NO and O on Au4-, and the NO molecules were released above 900 K.

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U2 - 10.1021/acs.jpcc.9b02629

DO - 10.1021/acs.jpcc.9b02629

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 25

ER -

Adsorption and Desorption of NO and NO₂ Molecules on Gold Cluster Anions Observed by Thermal Desorption Spectrometry

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