TY - JOUR
T1 - Ferrihydrite gels derived in the Fe(NO3)3 · 9H2O-C2H5OH-CH3CHCH2O ternary system
AU - Talantsev, Evgueni F.
AU - Pantoya, Michelle L.
AU - Camagong, Cristina
AU - Lahlouh, Bashar
AU - Nicolich, Steven M.
AU - Gangopadhyay, Shubhra
N1 - Funding Information:
The authors would like to gratefully acknowledge support provided by the US Army TACOM – ARDEC under contract number DAAE 30-02-C-1132. We are also thankful to the National Science Foundation for their support under contract number CTS-0210141. The authors thank Dr Jordan Berg, Keith Plantier and John Granier from Texas Tech University for their kind help in the development of this work. We would also like to thank Dr Alexander Gash for helpful discussions and contributions toward this work.
PY - 2005/6/1
Y1 - 2005/6/1
N2 - A study of gel formation in iron(III) nitrate nonahydrate (Fe(NO 3)3 · 9H2O)-ethanol (C2H 5OH)-1,2-epoxypropane (propylene oxide (CH3CHCH 2O)) ternary system has been performed. The phase boundaries for existing ferrihydrite gels were determined. It was shown that this ternary system has two different types of ferrihydrite gel phases. The dominant chemical bonds of these phases were investigated by Fourier transform infrared spectroscopy (FTIR). Both ferrihydrite phases transform to amorphous α-FeOOH phase after 6 h annealing at T = 300 °C. The temperatures of crystallization from these amorphous α-FeOOH phases to α-Fe 2O3 phases were found.
AB - A study of gel formation in iron(III) nitrate nonahydrate (Fe(NO 3)3 · 9H2O)-ethanol (C2H 5OH)-1,2-epoxypropane (propylene oxide (CH3CHCH 2O)) ternary system has been performed. The phase boundaries for existing ferrihydrite gels were determined. It was shown that this ternary system has two different types of ferrihydrite gel phases. The dominant chemical bonds of these phases were investigated by Fourier transform infrared spectroscopy (FTIR). Both ferrihydrite phases transform to amorphous α-FeOOH phase after 6 h annealing at T = 300 °C. The temperatures of crystallization from these amorphous α-FeOOH phases to α-Fe 2O3 phases were found.
UR - http://www.scopus.com/inward/record.url?scp=18844439156&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2005.03.038
DO - 10.1016/j.jnoncrysol.2005.03.038
M3 - Article
AN - SCOPUS:18844439156
SN - 0022-3093
VL - 351
SP - 1426
EP - 1432
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 16-17
ER -