Influence of hydrogen on the thermoelectric power of palladium alloyed with neighbouring elements: I. Pd/Ru/H and Pd/Rh/H alloys

Author

A W Szafranski

Affiliations

Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

E-mail

aws@ichf.edu.pl

Journal

Journal of Physics: Condensed Matter Create an alert RSS this journal

Issue

Volume 15, Number 21

Citation

A W Szafranski 2003 J. Phys.: Condens. Matter 15 3583

doi: 10.1088/0953-8984/15/21/307


 
Tag this article Full text PDF (172 KB)
Abstract

Pd/Ru and Pd/Rh alloys have been loaded with hydrogen in high-pressure conditions. The resulting hydrogen contents were close to the stoichiometric composition, H/(Pd + Me) = 1. Lower hydrogen contents have been obtained by successive partial desorptions. The thermoelectric power and electrical resistance of one- and two-phase alloys have been measured simultaneously in the temperature range between 80 and 300 K. A Nordheim–Gorter type correlation of the two quantities has been observed in many cases and the partial thermopowers corresponding to electron–phonon scattering and lattice disorder could be determined. The observed anomalous behaviour of the total and partial thermopowers is attributed to virtual bound states of ruthenium or rhodium.

 
PACS

72.15.Jf Thermoelectric and thermomagnetic effects

68.43.Mn Adsorption kinetics

62.50.-p High-pressure effects in solids and liquids

63.20.K- Phonon interactions

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Condensed matter: structural, mechanical & thermal

Dates

Issue 21 (4 June 2003)

Received 3 January 2003

Published 19 May 2003



Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. Localized–delocalized electron quantum phase transitions

View by subject


Export