(19)
(11) EP 2 554 724 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 2 (W2 A1)

(48) Corrigendum issued on:
28.08.2013 Bulletin 2013/35

(88) Date of publication A3:
06.02.2013 Bulletin 2013/06

(43) Date of publication:
06.02.2013 Bulletin 2013/06

(21) Application number: 11761994.0

(22) Date of filing: 29.03.2011
(51) International Patent Classification (IPC): 
D01F 9/08(2006.01)
 D01D 5/00(2006.01)
(86) International application number:
PCT/CN2011/072249
(87) International publication number:
WO 2011/120420 (06.10.2011 Gazette 2011/40)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 31.03.2010 WO PCT/CN2010/071488

(71) Applicants:
  • Tsinghua University
    Haidian District Beijing 100084 (CN)
  • TOYOTA JIDOSHA KABUSHIKI KAISHA
    Toyota-shi, Aichi-ken, 471-8571 (JP)

(72) Inventors:
  • PAN, Wei
    Beijing 100084 (CN)
  • LI, Bin
    Beijing 100084 (CN)
  • LIU, Yanyi
    Beijing 100084 (CN)
  • KAWAI, Masashi
    Toyota-shi, Aichi-ken, 471-8571 (JP)

(74) Representative: Kuhnen & Wacker 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Strasse 40A
85354 Freising
85354 Freising (DE)

   


(54) METAL OXIDE NANOFIBER AND PREPARATION METHOD THEREOF


(57) The invention discloses a production method for nanofibers of metal oxide, wherein the metal oxide is a metal oxide of at least one metal selected from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Zr, Sr, Ba, Mn, Fe, Co, Ma and Ga, comprising: a) spinning a compound precursor containing a salt of the metal, to produce nanofibers of the precursor containing the metal oxide; and b) calcining the nanofibers of the precursor containing the salt of the metal at a temperature in a range of from 500°C to 800°C, to obtain nanofibers of metal oxide containing the at least one metal element. The invention further discloses nanofibers of metal oxide, a solid electrolyte material, a fuel cell and an oxygen sensor.