9 results about "Highly porous" patented technology

This invention discloses a method for preparing and applying a biomass carbon-derived metal-based composite sulfur cathode for all-solid-state batteries, belonging to the field of all-solid-state lithium-sulfur battery technology. The invention first prepares a biomass carbon BC-Cu material, using sulfur powder (S) as a substrate and adding Ketjen black (KB) to form a sulfur cathode (S@KB). Then, BC-Cu material is added to this cathode to form a composite sulfur cathode S@KB-BC-Cu. The BC-Cu material prepared by this invention exhibits a highly porous structure, nanoscale size, and good reproducibility and controllability, laying a solid foundation for subsequent research and application of material properties. When the composite sulfur cathode prepared by this invention is used in an all-solid-state lithium-sulfur battery, it exhibits high discharge specific capacity, good cycle stability, and excellent rate performance.

The present invention relates to providing a dehumidifier apparatus with a desiccant wheel incorporating special adsorbent materials, which are highly porous, with surface area in a range of 500 m2 / g to 10000 m2 / g. These dehumidifier apparatuses having desiccant wheels incorporating special desiccant materials have demonstrated the ability to not only be regenerated well at temperatures of less than 100 degC to 120 degC, but have also shown greater than 15-25% higher adsorption performance (water removal), under similar operating conditions.

The invention relates to a preparation method of a composite solid electrolyte diaphragm. The method is characterized by comprising the following steps: A, preparing a positive electrode side composite electrolyte I mixture: fully dispersing a colloidal PEO liquid subjected to heat treatment, antioxidant inorganic solid electrolyte powder, metal oxide powder and a functional additive at a high speed to form a uniform mixture; b, preparing a negative electrode side composite electrolyte II mixture: fully dispersing the colloidal PEO liquid subjected to heat treatment, anti-reduction inorganic solid electrolyte powder and a functional additive at a high speed to form a uniform mixture; c, the positive electrode side composite electrolyte I mixture and the negative electrode side composite electrolyte II mixture are coated on the two sides of an ultrathin high-porosity flexible film with the thickness of 3-9 micrometers respectively, the coating thickness is 1-30 micrometers, cooling and curing are conducted, and a diaphragm is obtained; and D, carrying out rolling treatment on the cured diaphragm to obtain the composite solid electrolyte diaphragm. The process is simple, and no organic solvent is used.

A dehumidifier apparatus for low dew point application is disclosed, which deploys a desiccant wheel incorporating special adsorbent materials, which are highly porous, which are either crystalline or amorphous or both or multivariate, with surface area in a range of 500 m2 / g to 10000 m2 / g, and have an high uptake in a range of X to Y at 0.1-5% relative humidity (Rh), typically referred to as adsorbent materials with Type-1 isotherm. These dehumidifier apparatuses having desiccant wheels incorporating special materials have demonstrated the ability to not only be regenerated well at temperatures of less than 100 degC, but have also shown 15-25% higher adsorption performance (water removal), for achieving desired low dew point under similar operating conditions.

This application belongs to the field of biomedical materials technology, specifically relating to tissue repair materials, their preparation methods, and applications. This application provides a method for preparing a tissue repair material. By combining high- and low-osmotic cell desorption treatment with an optimized freeze-drying process, a biomimetic bilayer structure with both a dense barrier layer and a highly porous layer is successfully constructed, effectively solving the problem in existing technologies of balancing barrier function and ideal pore structure. The aforementioned dense layer provides an effective physical barrier and mechanical support close to natural cartilage, while the porous layer forms a directional macroporous network, greatly promoting rapid cell ingrowth and the formation of cartilage-like tissue. The tissue repair material preparation method of this application provides a novel solution to overcoming the challenge of cartilage regeneration and has broad clinical application prospects.

The present invention relates to highly porous, bioresorbable electrospun sensors for optical detection of tissue oxygenation and processes of making and using same. Multiple sensor compositions are described that are focused on different applications / oxygen ranges. Such sensors alleviate the risk of leaving the sensor implanted in a subject, typically have as good or better oxygen sensing capabilities and comparable performance life span as non-degradable sensors and unlike sensors made from general bioresorbable materials maintain a desired porosity as they degrade. Thus, such sensors may remain integrated in a subject's body while they degrade and maintain the ability to sense oxygen for their performance life span.

The present invention relates to an electrode for gas evolution in an electrolytic process and to a method for producing such an electrode, which electrode comprises a metal substrate and a coating formed on the substrate, wherein the coating comprises at least a highly porous catalytic outer layer containing nickel oxide and nickel hydroxide, the porous outer layer having a surface area (BET) of at least 40 m 2 / g. The catalytic layer is produced from a Ni oxide / V oxide initial coating with subsequent leaching of V.

The application discloses a kind of foamed nickel load (NiO) 0.75 (MnO) 0.25 Porous nanosheet solid solution electrode material and its preparation method and application relate to material science and nanotechnology and new energy field, in-situ diffusion and lattice reconstruction of NiO / Mn3O4 heterojunction obtained by microwave-assisted hydrothermal in the process of medium-high temperature heat treatment under certain conditions can induce conversion from uniform arrangement and mutual connection two-dimensional nanosheet array structure to (NiO) 0.75 (MnO) 0.25 Porous nanosheet solid solution effectively increases electrochemical accessible surface area and accelerates charge transfer kinetics, thereby exhibiting high specific capacity, wide voltage window and excellent cycle durability in alkaline aqueous supercapacitors. The method is simple, reproducible, and suitable for large-scale production of high-performance alkaline aqueous supercapacitor electrode materials.

This invention belongs to the field of RGO aerogel technology, specifically disclosing a method for preparing RGO aerogel through hydrothermal synthesis and freeze-drying. This method uses GO sheets, SiC whiskers, and ZIF-67 particles as basic building blocks to prepare RGO aerogel. Using hydrothermal synthesis and freeze-drying techniques, with SiC whiskers as a secondary support network, a graphene composite aerogel with synergistic regulation of N-doped and functional components is constructed. The addition of ammonia and ZIF-67 particles reduces the material's electrical conductivity, thereby effectively regulating the dielectric constant. Simultaneously, the secondary nitrogen doping induced by these two components and the generation or retention of oxygen- and nitrogen-containing polar structures increase the relative content of polar groups and construct multiple heterogeneous interfaces, significantly enhancing polarization loss and enriching the loss mechanism. The RGO-0.10 aerogel prepared by this invention exhibits excellent EMW absorption performance. Furthermore, its highly porous microstructure gives the material a thermal conductivity of 0.03930 W / (m·K), demonstrating good thermal insulation performance.