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Volumn 119, Issue 33, 1997, Pages 7760-7771

Structural characterization of carbon-supported platinum-ruthenium nanoparticles from the molecular cluster precursor PtRu5C(CO)16

Author keywords

[No Author keywords available]

Indexed keywords

NANOPARTICLE; PLATINUM; RUTHENIUM;

EID: 0030953345     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja971039f     Document Type: Article
Times cited : (316)

References (92)
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    • Klabunde, K.J.1    Li, Y.-X.2
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    • (1992) Proc. Workshop on Direct Methanol-Air Fuel Cells , vol.14-92 PV , pp. 10-23
    • Cameron, D.S.1    Hards, G.A.2    Thomsett, D.3
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    • (a) Ross, P. N. In Proc. Workshop on Direct Methanol-Air Fuel Cells; Landgrebe, A. R., Sen, R. K., Wheeler, D. J., Eds.; Proceedings Series; The Electrochemical Society: Pennington, NJ, 1992; PV 92-14, pp 51-69.
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    • Massalski, T. B., Okamoto, H., Subramanian, P. R., Kacprazate, L., Eds; ASM: Materials Park
    • Okamoto, H. In Binary Alloy Phase Diagrams, 2nd ed.; Massalski, T. B., Okamoto, H., Subramanian, P. R., Kacprazate, L., Eds; ASM: Materials Park, 1990; Vol. 3, p 2345.
    • (1990) Binary Alloy Phase Diagrams, 2nd Ed. , vol.3 , pp. 2345
    • Okamoto, H.1
  • 66
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    • note
    • The collinear ("focusing") DS and TS paths, that arise from linear three-atom arrangements, generally contribute a large amplitude to the overall EXAFS function for close-packed structures. For example, in the fee crystal structure, collinear DS paths result from (1) forward scattering by an atom in the first-shell, and (2) backscattering by an atom in the fourth shell (M-M(1)-M(4)-M). Since this path is time-reversed, there are two times more degenerate scattering paths (i.e., 24) than the number of atoms in the 4th shell of the fee structure. The collinear TS paths are similar to the DS paths except that the photoelectron scatters from atoms in the first-shell twice (M-M(1)-M(4)-M(1)-M). This path is not time reversed, resulting in only 12 degenerate paths, i.e., the same as the number of atoms in the fourth shell.
  • 67
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    • note
    • Some of the triangle paths may also contribute significantly to the MS amplitude because of their large degeneracy in the fee structure. These paths arise from noncollinear scattering from two neighbors. For example two significant triangle paths include scattering between the 1st and 3rd shells, and between two first shells (M-M(3)-M(1)-M and M-M(1)-M(1)-M).
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    • note
    • The degradation of the diffraction pattern is not understood. It may to result from the "melting" of the cluster surface under the intense electron beam or, alternatively, be related to a contamination effect due to beam induced deposition of carbon from the background gases.
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    • Diaz de la Rubia, T., Was, G. S., Robertson, L. W., Hobbs, L. W., Eds.; Materials Research Society, Pittsburgh, PA, in press
    • Vanfleet, R. R.; Mochel, J. M. In Proceecdings of the Microstructure Evolution During Irradiation; Diaz de la Rubia, T., Was, G. S., Robertson, L. W., Hobbs, L. W., Eds.; Materials Research Society, Pittsburgh, PA, in press.
    • Proceecdings of the Microstructure Evolution during Irradiation
    • Vanfleet, R.R.1    Mochel, J.M.2
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    • 9 clusters. In both analogues, the Ru3 triangle is centrally located over the C6 ring with each Ru positioned over alternate C-C bonds of the benzene or the fullerene framework
    • 9 clusters. In both analogues, the Ru3 triangle is centrally located over the C6 ring with each Ru positioned over alternate C-C bonds of the benzene or the fullerene framework.
    • (1996) J. Am. Chem. Soc. , vol.118 , pp. 9192
    • Hsu, H.-F.1    Shapley, J.R.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.