Metal oxide nanofiber and preparation method thereof

• Main Authors: KAWAI MASASHI, LIU YANYI, LI BIN, PAN WEI
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2013
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BASIC ELECTRIC ELEMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; ELECTRICITY; INORGANIC CHEMISTRY; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPINNING; TEXTILES

A method for preparing a metal oxide nanofiber is disclosed, wherein the metal oxide is that one of at least one of metals selected from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Zr, Sr, Ba, Mn, Fe, Co, Mg and Ga. The method comprises: a)spinning a spinning solution containing the metal salt compound to produce a nanofiber containing metal oxide precursor, and b) firing the nanofiber containing metal oxide precursor at the temperature of 500-800? to obtain the metal oxide nanofiber containg at least one of the metal elements. A metal oxide nanofiber, a solid electrolyte material, a fuel cell and an oxygen sensor are further disclosed.