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Jamil, Aida, Schlaefer, Johannes, Goenuellue, Yakup, Lepcha, Ashish and Mathur, Sanjay (2016). Precursor-Derived Rare Earth Metal Pyrochlores: Nd2Sn2O7 Nanofibers and Thin Films As Efficient Photoabsorbers. Cryst. Growth Des., 16 (9). S. 5260 - 5268. WASHINGTON: AMER CHEMICAL SOC. ISSN 1528-7505

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Abstract

Single phase rare earth pyrochlores, Ln(2)M(2)O(7), were produced as nanofibers and thin films by electrospinning and spin-coating of chemical sols obtained from bimetallic metalorganic precursors, Ln(III)M(II)((OBu)-Bu-t)(5)Py (Ln(III) = La, Pr, Nd, Sm, Er, Yb; M-II = Ge, Sn, Pb; Py = pyridine). Compatibility of the metal ratio in the single-source compounds was confirmed by single crystal X-ray diffraction analyses and the ratio was preserved during the processing as the crystalline pyrochlore materials originated from an amorphous preceramic aggregate as confirmed by powder XRD and TEM studies. The photocatalytic activity of the Nd2Sn2O7 nanofibers was found to be significantly higher than that of TiO2. Nd2Sn2O7 thin films deposited on F:SnO2 as bilayered Nd2Sn2O7//Fe2O3 photoanodes showed superior photoelectrochemical (PEC) efficiency for water splitting reaction with an over 3-fold higher photocurrent density than bare Fe2O3 photoanodes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Jamil, Aida UNSPECIFIED UNSPECIFIED UNSPECIFIED Schlaefer, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Goenuellue, Yakup UNSPECIFIED UNSPECIFIED UNSPECIFIED Lepcha, Ashish UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-265458
DOI:	10.1021/acs.cgd.6b00815
Journal or Publication Title:	Cryst. Growth Des.
Volume:	16
Number:	9
Page Range:	S. 5260 - 5268
Date:	2016
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1528-7505
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HYDROTHERMAL SYNTHESIS; OXIDE PHOTOANODES; TERT-BUTOXIDES; TIN; CHEMISTRY; LANTHANIDE; ALKOXIDES; SN(II); IONS; BI Multiple languages Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/26545