Universität zu Köln

Von Hagen, Robin, Sneha, Mahima and Mathur, Sanjay (2014). Ink- jet Printing of Hollow SnO2 Nanospheres for Gas Sensing Applications. J. Am. Ceram. Soc., 97 (4). S. 1035 - 1041. HOBOKEN: WILEY. ISSN 1551-2916

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Abstract

Hollow tin-oxide (SnO2) nanospheres were synthesized by coating, carbon nanospheres (CNs) as hard templates, with a tin(IV) sol obtained by partial hydrolysis of [Sn(OBut)(4)] under ambient conditions. Formation of crystalline SnO2 spheres upon calcination was confirmed by powder X-ray diffraction data, whereas the hollow interiors of SnO2 particles were verified by scanning and transmission electron microscopy of both intact and broken spheres. The shell of SnO2 nanospheres sintered at 700 degrees C consisted of a single layer of nanocrystallites (similar to 6nm) self-assembled in a ball-like superlattice. Tin-oxide hollow spheres showed an average diameter of 150nm and could be homogeneously dispersed in water/ethylene glycol (50:50vol%) mixture to form stable inorganic inks viable for their use in commercial ink-jet printers demonstrated by printing porous ceramic structures on an interdigitated sensor chip. The integration of large surface and nanoscopic voids in the final structures imparted higher sensitivity to the as-printed sensors toward both oxidizing (nitrogen dioxide) and reducing gases (methane and ethanol), which validates the enormous potential of printable inorganics in functional applications.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Von Hagen, Robin UNSPECIFIED UNSPECIFIED UNSPECIFIED Sneha, Mahima UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-441611
DOI:	10.1111/jace.12832
Journal or Publication Title:	J. Am. Ceram. Soc.
Volume:	97
Number:	4
Page Range:	S. 1035 - 1041
Date:	2014
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1551-2916
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 OXIDE NANOSTRUCTURES; PARTICLE-SIZE; GRAIN-SIZE; SPHERES; SENSITIVITY; DEPOSITION; MORPHOLOGY Multiple languages Materials Science, Ceramics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/44161