Particle and Aerosol Research
Vol. 13, No. 4, December 2017, Pages 183-189
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Eco-Friendly Synthesis of Rod-Like
Potassium Hexatitanate Particles
Chongmin Lee1),2), Hankwon Chang1),2), Hee Dong Jang1),2) *
1)Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources
2)Department of Nanomaterials Science and Engineering, University of Science and Technology
*Corresponding author.
Tel.: +82-42-868-3612, E-mail: hdjang@kigam.re.kr
Received 02 December 2017, Revised 11 December 2017, Accepted 13 December 2017, Available online 03 January 2018
http://dx.doi.org/10.11629/jpaar.2017.12.30.183
Abstracts
Potassium hexatitanate (K2Ti6O13) with high thermal insulating capacity, good mechanical properties, and excellent
chemical stability are promising functional materials in the field of reinforcing material, heat insulating paints and
automotive brake linings. In this study, we successfully synthesized rod-shaped potassium hexatitanate (K2Ti6O13) by
aerosol spray drying and post heat treatment as an eco-friendly process. The KHCO3-TiO2 porous particles were firstly
synthesized from a colloidal mixture of K2CO3 and TiO2 via aerosol spray drying. Size of KHCO3-TiO2 porous
particles was ranged from 1 ¥ìm to 5 ¥ìm. The porous particles were then heated to fabricate rod-type K2Ti6O13. The
length and width of rod-type composites were affected by temperature and heating time. The length and width of
K2Ti6O13 were increased by 830 nm and 500 nm, respectively, as the reaction temperature and time increased.
Keywords
aerosol spray drying, potassium hexatitanate, nanorods
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