Abstract: The present disclosure provides a bimetallic coordination metal-organic framework material, a preparing method thereof, and an application thereof. In the bimetallic coordination metal-organic framework material, carboxyl groups and soft groups of ligands are coordinated with coordination metal ions to assemble a structure having space and functions divided into covalent charge carrier layers and charge storage ion layers. Further, through the conjugation effect, the bimetallic coordination metal-organic framework material has unique electromagnetic properties, good electrical conductivity, and magnetic coupling performance. Thus, the bimetallic coordination metal-organic framework material is used as superconducting materials, conductive materials, semiconductor materials, or electromagnetic materials.

Abstract: The present invention provides methods for preparing trimanganese tetroxide with low BET specific surface area and methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product.

Abstract: The present invention provides methods for preparing trimanganese tetroxide with low BET specific surface area and methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product.

Abstract: The present invention provides methods for preparing trimanganese tetroxide with low BET specific surface area and methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product.

Abstract: The present invention provides methods for preparing trimanganese tetroxide with low BET specific surface area and methods for controlling particle size of trimanganese tetroxide and trimanganese tetroxide product.

Abstract: A titania composite and a preparing method thereof are provided. The titania composite comprises an inner core and a coating film layer, wherein the inner core is a barium sulfate crystal and/or a strontitum sulfate crystal with subsphaeroidal shape, having a particle size of less than 1 ?m and whiteness of more than 98%, and the coating film layer is nano rutile titania. The preparing method thereof comprises the following steps: (a) preparing barium sulfate or strontium sulfate; (b) coating treatment; (c) subjecting the titania composite to a high-temperature heat treatment; and (d) subjecting the titania composite to a post treatment. The subsphaeroidal titania composite is obtained by chemically synthesizing a subsphaeroidal submicron barium sulfide or strontium sulfide, and then hydrolyzing and coating thereon to form a coating film layer of titania to make titania grow evenly.

Abstract: A titania composite and a preparing method thereof are provided. The titania composite comprises an inner core and a coating film layer, wherein the inner core is a barium sulfate crystal and/or a strontitum sulfate crystal with subsphaeroidal shape, having a particle size of less than 1 ?m and whiteness of more than 98%, and the coating film layer is nano rutile titania. The preparing method thereof comprises the following steps: (a) preparing barium sulfate or strontium sulfate; (b) coating treatment; (c) subjecting the titania composite to a high-temperature heat treatment; and (d) subjecting the titania composite to a post treatment. The subsphaeroidal titania composite is obtained by chemically synthesizing a subsphaeroidal submicron barium sulfide or strontium sulfide, and then hydrolyzing and coating thereon to form a coating film layer of titania to make titania grow evenly.