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NMR and Quantum Effects in Metal Particles

Published online by Cambridge University Press:  28 February 2011

W. P. Halperin  and
Insuk Yu
W. P. Halperin
Affiliation:
Northwestern University, Department of Physics and Astronomy and Materials Research Laboratory, Evanston, Illinois 60208
Insuk Yu
Affiliation:
Seoul National University, Department of Physics, Seoul 151, Korea
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Abstract

The considerable interest in metallic clusters spans a wide range. In this paper we discuss quantum effects and we suggest that there may be important interrelationships between such behavior and heterogeneous catalysis. Of course, the physical and chemical behavior of the metal particle are the key to understanding principles of catalytic activity. The quantum effects are found at progressively lower temperatures where the metallic properties change. In both cases a fundamental question is posed, “Do these particles exhibit metallic behavior?;” One of the common features of research in these two areas is the important role played by nuclear magnetic resonance(NMR) techniques since the signatures of a metal and an insulator are so dramatically different. The issue of metallic or nonmetallic behavior is therefore best addressed with this experimental approach and we will review the current situation by comparing a number of results on quantum size effects deduced from NMR experiments

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 111: Symposium O – Microstructure and Properties of Catalysts , 1987 , 79
Copyright
Copyright © Materials Research Society 1988

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