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Slichter, C.P. Wang, Zhiyue 2011-06-20T14:11:32Z 2011-06-20T14:11:32Z 10000-01-01 1987 We report the study of supported Pt-Rh bimetallic catalysts by 195Pt NMR and by 13C NMR of adsorbed CO. The metal particles are sA-soA in diameter. Study of the dependence of the 13CO resonance position as a function of Pt/Rh ratio and particle size shows that Rh is segregated to the surface. Study of the 195Pt NMR shows that the center of the particles consists of Pt only. By 195Pt - 13 CO double resonance we measure CO frequencies for those CO molecules which are bonded to Pt. We found thereby that the electronic structure of the bimetallic particle surfaces probed by CO NMR is independent of whether CO is bonded to Pt or Rh. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T14:11:32Z No. of bitstreams: 1 1987_wang.pdf: 2916535 bytes, checksum: 44387c341857fbbeb16bdaa3030de421 (MD5) Made available in DSpace on 2011-06-20T14:11:32Z (GMT). No. of bitstreams: 1 1987_wang.pdf: 2916535 bytes, checksum: 44387c341857fbbeb16bdaa3030de421 (MD5) Previous issue date: 1987 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T14:11:32Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:14:09-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only 3476225 http://hdl.handle.net/2142/25448 en 1987 Zhiyue Wang Nuclear magnetic resonance (NMR) Pt-Rh bimetallic clusters Pt-CO double resonance Nuclear magnetic resonance study of the Pt-Rh bimetallic clusters Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.