The Influence of the Dipolar Field Effect on the Photochemical Reactivity of Sr2Nb2O7 and BaTiO3 Microcrystals

Autor:	Jennifer L. Giocondi, Gregory S. Rohrer
Rok vydání:	2008
Předmět:	Condensed Matter::Materials Science Dipole Work (thermodynamics) Chemistry Charge carrier Photochemical reactivity General Chemistry Dipolar field Small particles Photochemistry Ferroelectricity Catalysis
Zdroj:	Topics in Catalysis. 49:18-23
ISSN:	1572-9028 1022-5528
DOI:	10.1007/s11244-008-9067-2
Popis:	It has previously been shown that the dipolar field effect spatially localizes photochemical reaction products on the surfaces of macroscopic ferroelectric crystals. In this work, photochemical reactions that deposit insoluble products on the surface have been used to study the dipolar field effect in microcrystals of BaTiO3 and Sr2Nb2O7. In both cases, the patterns of reduced silver on the surface were consistent with the orientations of the ferroelectric domains within the samples. The results show that dipolar fields associated with the ferroelectric domains in small particles can separate photogenerated charge carriers and spatially localize reaction products.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1214b433e4bdaa471c7f0478affb3aad https://doi.org/10.1007/s11244-008-9067-2 Zobrazit plný text záznamu Plný text ve formátu PDF