Preparation and application of perovskite catalyst with three-dimensional ordered macroporous structure

• Main Authors: LI WENBIN, XU QINHONG, YANG HAO, GUO PENGFEI, SONG SHIDONG
• Format: Patent
• Language: English
• Published: 11.03.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a perovskite catalyst with a three-dimensional ordered macroporous structure, in particular to preparation and application of the perovskite catalyst with the three-dimensional ordered macroporous structure. The preparing process comprises the following steps: (1), preparing polystyrene colloidal crystals by a colloidal crystal template process; (2), assembling the colloidal crystals by a centrifugal method; (3), filling a template with a precursor solution prepared from metal ion nitrate by an impregnating method; (4), removing the template by a high-temperature forging method; (5) applying the perovskite catalyst with the three-dimensional ordered macroporous structure to the fields of new energy, such as lithium air batteries, catalysis, environments, chemicals and electronic industry. The operation is simple, and the prepared perovskite catalyst with the three-dimensional ordered macroporous structure has great catalytic activity. When the perovskite catalyst with the three-dimensional ordered macroporous structure is applied to the lithium air batteries, the electrochemical properties of the batteries can be obviously improved, and high catalytic activity is reflected.