Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.colsurfa.2011.02.026
Title: Controlled synthesis, magnetic and sensing properties of hematite nanorods and microcapsules
Authors: Guo, P.
Wei, Z.
Wang, B.
Ding, Y.
Li, H.
Zhang, G.
Zhao, X.S. 
Keywords: Electrocatalysis
Hematite
Magnetism
Microcapsule
Nanorod
Issue Date: 5-May-2011
Citation: Guo, P., Wei, Z., Wang, B., Ding, Y., Li, H., Zhang, G., Zhao, X.S. (2011-05-05). Controlled synthesis, magnetic and sensing properties of hematite nanorods and microcapsules. Colloids and Surfaces A: Physicochemical and Engineering Aspects 380 (1-3) : 234-240. ScholarBank@NUS Repository. https://doi.org/10.1016/j.colsurfa.2011.02.026
Abstract: Hematite microcapsules with and without etching are fabricated controllably through adjusting the synthesis temperature via a 3,3-thiodipropionic acid (TPA)-assisted hydrothermal synthesis method. Hematite nanorods can be obtained after the calcination of akaganeite nanorods which were prepared at a low synthesis temperature. Based on the experimental results, it is suggested that at the early stage the synthesis of akaganeite and hematite samples involves the hydrolysis of ferric chloride to promote nucleation in the presence of TPA and subsequently experiences the coordination-assisted growth guided by the ligand of TPA. Magnetic hysteresis measurements show that the size and shape of the hematite micro-/nanostructures have important effects on their magnetic properties. Furthermore, hematite nanorods display the best electrochemical sensing behavior toward the reduction of H2O2 among these hematite samples. © 2011 Elsevier B.V.
Source Title: Colloids and Surfaces A: Physicochemical and Engineering Aspects
URI: http://scholarbank.nus.edu.sg/handle/10635/88700
ISSN: 09277757
DOI: 10.1016/j.colsurfa.2011.02.026
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