| abstract |
The invention discloses a preparation method of the nano fiber of a metal oxide. The metal oxide is an oxide of at least one metal selected from Sc, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Zr, Sr, Ba, Mn, Fe, Co, Ma and Ga. The preparation method comprises the following steps of: (a) spinning a precursor compound containing a metal salt so as to prepare nano fiber containing the precursor of the metal oxide; and (b) calcining the nano fiber containing the precursor of the metal salt at a temperature ranging from 500 DEG C to 800 DEG to obtain the nano fiber containing the metal oxide of at least one metal element. The invention further discloses the nano fiber of the metal oxide, a solid electrolyte material, a fuel battery and an oxygen sensor. |