2001
DOI: 10.1016/s0169-4332(00)00668-1
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Desorption dynamics in N2O decomposition on Pd(110)

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Cited by 25 publications
(33 citation statements)
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“…On Pd͑110͒, the velocity of N 2 in this peak was already analyzed to show a Maxwellian distribution at the surface temperature. 6 This is consistent with desorption from the adsorption state of N 2 . Such N 2 (a) formation may proceed below their peak temperatures as N 2 O(a) →N 2 (a)ϩO(a).…”
Section: Discussionsupporting
confidence: 77%
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“…On Pd͑110͒, the velocity of N 2 in this peak was already analyzed to show a Maxwellian distribution at the surface temperature. 6 This is consistent with desorption from the adsorption state of N 2 . Such N 2 (a) formation may proceed below their peak temperatures as N 2 O(a) →N 2 (a)ϩO(a).…”
Section: Discussionsupporting
confidence: 77%
“…Peculiar N 2 desorption observed on Pd͑110͒ is expected to provide more insight into product emission dynamics. [2][3][4][5][6] This paper is the first to report the angular distributions of desorbing N 2 in the thermal dissociation of N 2 O(a) on Rh͑110͒ and Ir͑110͒ as well as Pd͑110͒. Part of the desorbing N 2 commonly collimated far from the surface normal in the plane along the ͓001͔ direction.…”
Section: Introductionmentioning
confidence: 99%
“…14 Later, we showed that this inclined N 2 desorption is well reproduced in N 2 O decomposition on Pd͑110͒, Rh͑110͒, and Ir͑110͒ as well as in steady-state NO + CO ͑or H 2 ͒ and N 2 O+CO ͑or H 2 ͒ reactions on Pd͑110͒. 13,[15][16][17][18][19][20][21][22] Thus, the intermediate N 2 O͑a͒ formed from the NO͑a͒ +N͑a͒ fast reaction [23][24][25] has been proposed to be oriented along the ͓001͔ direction before dissociation in the course of the catalyzed NO reduction. In the present work, AR-product desorption measurements have been successfully performed at different crystal azimuths for the steady-state NO ͑or N 2 O͒ + CO reaction and the resultant spatial distributions of all products have been constructed in a three-dimensional way.…”
Section: Introductionmentioning
confidence: 65%
“…54 N 2 O is easily decomposed on Pd͑110͒ below 150 K, emitting N 2 in the inclined way. [15][16][17][18] This peculiar desorption has been proposed to be due to the decomposition of N 2 O oriented along the ͓001͔ direction although the vibrational spectroscopy work indicates the terminal nitrogen atom interacting with the surface at around 100 K, 55 or no N 2 O͑a͒ signal has been observed in the catalyzed NO reduction above 500 K. [56][57][58] On clean Pd͑110͒, DFT-GGA, 27,28 STM, 29 and NEXAFS 30 studies commonly support the presence of two adsorption forms below 60 K, i.e., one lying form oriented along the ͓001͔ direction and another tilted form with the terminal nitrogen atom interacting with the metal. This is consistent with the results from vibrational spectroscopy which is insensitive to the lying form according to the surface-selection rule.…”
Section: B Intermediate Structurementioning
confidence: 99%
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