NDLI: Single-crystalline α-Fe<sub>2</sub>O<sub>3</sub> oblique nanoparallelepipeds: High-yield synthesis, growth mechanism and structure enhanced gas-sensing properties

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Nanoscale Vol -2

Nanoscale Vol -1

Single-crystalline α-Fe₂O₃ oblique nanoparallelepipeds: High-yield synthesis, growth mechanism and structure enhanced gas-sensing properties

Content Provider	Royal Society of Chemistry (RSC)
Author	Wei, Wenjing Wang, Shaozhen Kuai, Long Geng, Baoyou Li, Xuelian
Copyright Year	2011
Abstract	In this paper, single-crystalline α-Fe2O3 oblique nanoparallelepipeds are fabricated in high yield via a facile surfactant-free hydrothermal method, which involves oriented aggregation and Ostwald ripening. The obtained nanocrystals have exposed facets of {012}, {01–4} and {−210} with a rhombohedral α-Fe2O3 structure. The gas sensors based on the as-synthesized α-Fe2O3 nanostructures exhibit high sensitivity, short recovery time, and good reproducibility in ethanol and acetone. The superiority of the gas-sensing properties of the obtained nanostructures should be attributed to the surface structure of the nanocrystals. The as-prepared α-Fe2O3 nanocrystals are significant for exploiting their other applications in the future.
Starting Page	718
Ending Page	724
Page Count	7
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	3
Issue Number	2
Journal	Nanoscale
DOI	10.1039/c0nr00617c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ostwald Hydrothermal circulation Ostwald ripening Ethanol Hexagonal crystal family Acetone
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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