TY - JOUR
T1 - Synthesis of spherical aggregates of leaf-like YPO4 particles via hydrolysis of tri-n-butylphosphate
AU - Nakata, Atsushi
AU - Sugiyama, Kazuhiro
AU - Sugahara, Yoshiyuki
PY - 2012
Y1 - 2012
N2 - Spherical aggregates of leaf-like YPO4 particles have been prepared by the reactions of tri-n-butylphosphate [PO(OC4H 9)3, TBP] with the acidic Y(NO3)3 aqueous solution in an autoclave at 180°. The products of the reactions for 1, 3 and 6 h consisted of an intermediate exhibiting an intense X-ray diffraction line at d μ 1.28 nm, while those of reactions for 1248 h were pure YPO4. The products of the reactions for 8 and 8.5 h were mixtures of the intermediate and YPO4. YPO4 formation thus seems to proceed via the formation of the intermediate. Since the intermediate seems to be Y[PO2(OC4H9)2]3, it is likely that TBP was hydrolyzed to form PO2(OC4H 9)2- ions, which then reacted with Y3+ ions to form the solid intermediate, Y[PO2(OC4H9) 2]3. Scanning electron microscopy (SEM) revealed the corresponding morphological change from the belt-like products to spherical aggregates of leaflike particles, indicating that the solid intermediate Y[PO2(OC4H9)2]3 was hydrolyzed to form leaf-like YPO4 particles.
AB - Spherical aggregates of leaf-like YPO4 particles have been prepared by the reactions of tri-n-butylphosphate [PO(OC4H 9)3, TBP] with the acidic Y(NO3)3 aqueous solution in an autoclave at 180°. The products of the reactions for 1, 3 and 6 h consisted of an intermediate exhibiting an intense X-ray diffraction line at d μ 1.28 nm, while those of reactions for 1248 h were pure YPO4. The products of the reactions for 8 and 8.5 h were mixtures of the intermediate and YPO4. YPO4 formation thus seems to proceed via the formation of the intermediate. Since the intermediate seems to be Y[PO2(OC4H9)2]3, it is likely that TBP was hydrolyzed to form PO2(OC4H 9)2- ions, which then reacted with Y3+ ions to form the solid intermediate, Y[PO2(OC4H9) 2]3. Scanning electron microscopy (SEM) revealed the corresponding morphological change from the belt-like products to spherical aggregates of leaflike particles, indicating that the solid intermediate Y[PO2(OC4H9)2]3 was hydrolyzed to form leaf-like YPO4 particles.
KW - Hydrolysis
KW - Morphology
KW - Tri-n-butylphosphate
KW - Yttrium phosphate
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U2 - 10.2109/jcersj2.120.204
DO - 10.2109/jcersj2.120.204
M3 - Article
AN - SCOPUS:84862118743
VL - 120
SP - 204
EP - 206
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1401
ER -