Studies of Infrared Optical Properties of Palladium Nanoparticles with Different Sizes and Dispersed States

Authors

Yan-xia JIANG, Department of Chemistry, Xiamen University, Xiamen 361005, China
Hong-gang LIAO, Department of Chemistry, Xiamen University, Xiamen 361005, China
Wei CHEN, Department of Chemistry, Xiamen University, Xiamen 361005, ChinaFollow
Shi-gang SUN, Department of Chemistry, Xiamen University, Xiamen 361005, China

Corresponding Author

Wei CHEN(chenw@sari.ac.cn)

Abstract

Pd nanoparticles with different sizes and dispersed states were prepared. Their infrared optical properties were studied with CO molecule probe. The infrared spectroscopic investigation revealed that Pd_n of 6.6 nm and Pd_n(cube)of 100～150nmexhibit normal IR absorption. The center of IR bands are around 1970 cm^-1 and 1910cm^-1. Pd_nis introduced into the surface of electrode, and is induced by interface electric fieldto form the aggregation of nanoparticles Pd_n(ag). The Pd_n(ag) has a different IR optical property from Pd_n. The direction of IR absorption band of Pd_n(ag) is changed from normal to abnormal at 1970 cm^-1 with the increase of polarization time. The present study demonstrated progressively the reversion of direction of IR band is general phenomena produced by the aggregation nanoparticles that there is interparticle interaction.

Keywords

Pd nanoparticles, Dispersed, Aggregation, IR optical properties

DOI Link

https://doi.org/10.61558/2993-074X.1556

Publication Date

2004-05-28

Online Available Date

2004-05-28

Revised Date

2004-02-01

Received Date

2003-12-01

Recommended Citation

Yan-xia JIANG, Hong-gang LIAO, Wei CHEN, Shi-gang SUN. Studies of Infrared Optical Properties of Palladium Nanoparticles with Different Sizes and Dispersed States[J]. Journal of Electrochemistry, 2004 , 10(2): 127-132.
DOI: 10.61558/2993-074X.1556
Available at: https://jelectrochem.xmu.edu.cn/journal/vol10/iss2/2