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Facile Fabrication of Pure α‐Fe 2 O 3 Nanoparticles via Forced Hydrolysis Using Microwave‐Assisted Esterification and their Sensing Property
Author(s) -
Li Yafeng,
Li Hongfang,
Cao Rong
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03193.x
Subject(s) - akaganéite , fabrication , nanoparticle , materials science , hematite , microwave , hydrolysis , phase (matter) , chemical engineering , nanotechnology , solvothermal synthesis , chemistry , metallurgy , organic chemistry , medicine , alternative medicine , physics , adsorption , pathology , quantum mechanics , engineering , goethite
In this paper we firstly demonstrate a facile approach for the rapid fabrication of α‐Fe 2 O 3 using microwave‐assisted esterification. In situ ‐generated water leads to the forced hydrolysis of Fe 3+ . Microwave irradiation greatly promotes the growth of α‐Fe 2 O 3 nanoparticles compared with conventional solvothermal approach, and agitation can assure the obtainment of pure hematite phase. The akaganeite phase is preserved without stirring. The BET specific surface area reaches 83 m 2 /g although high concentration of FeCl 3 is adopted. Our approach can assure the very rapid acquisition of hematite nanoparticles. Electrochemical studies indicate that our product can function as a candidate for high‐performance sensor.