5results about How to "Realize commercial application" patented technology

The invention discloses bacillus subtilis with high yield of surfactin, a related enzyme mutant and a preparation method of the bacillus subtilis, the bacillus subtilis is obtained by a gene modification method and can produce the surfactin with high yield, and the highest yield can reach 9.4 g / L; the invention also provides key enzyme mutants participating in surfactin synthesis in the bacillus subtilis, and the key enzyme mutants comprise a biotin carboxylase IdeHA mutant, a biotin carboxylase accBC mutant, an enoyl reductase FabI mutant, a malonyl transferase FabD mutant and a dihydrolipoyl dehydrogenase IPdU mutant. The key enzyme mutants comprise a biotin carboxylase IdeHA mutant, a biotin carboxylase accBC mutant, an enoyl reductase FabI mutant, a malonyl transferase FabD mutant and a dihydrolipoyl dehydrogenase IPdU mutant. The bacillus subtilis for high-yield surfactin and the preparation method thereof disclosed by the invention are beneficial to realizing industrial production and commercial application of the surfactin.

The invention discloses a method for improving the stability of perovskite nanoparticles. The method comprises the following steps: (1) synthesizing perovskite nanoparticles coated with surface ligands by using a solution method; (2) dispersing the synthesized perovskite nanoparticles into a solid matrix; and (3) carrying out post-treatment on the dispersed perovskite nanoparticle surface ligands, wherein the post-treatment mode is ultraviolet combined ozone treatment or plasma treatment. According to the method disclosed by the invention, ultraviolet combined ozone treatment or plasma treatment is adopted, so that unsaturated C = C in ligands is cross-linked, and the moving ability of the mutually cross-linked ligands is limited, so that the ligands are difficult to move under the conditions of illumination, heating and the like, thereby effectively preventing aggregation growth among nano-particles and improving the photo-thermal stability of the nano-particles. The method is easy to operate, suitable for large-scale industrial production and beneficial to commercialized application.

A fiber-reinforced lithium borohydride-based all-solid-state electrolyte for suppressing dendrite formation, its preparation method, and its application are disclosed. The method employs a reverse micelle precipitation method to prepare a precursor solution by dissolving lithium borohydride and lithium iodide in an ether solvent solution. Aluminum oxalate and vapor-grown carbon fibers are then added, followed by dropwise addition to an isopentane solution containing a surfactant. After reverse micelles form, the solution is allowed to settle and react completely, and the solvent is thoroughly removed. The product from the settled reaction is dried and then subjected to partial hydrogen release treatment. The partially hydrogen-released product is dispersed in a benzene solution containing polymethyl methacrylate, freeze-dried, and then melt-reacted in situ in a universal mold. This process is simple and highly controllable, significantly improving the mechanical stability and dendrite resistance of the lithium borohydride-based all-solid-state electrolyte, and enabling long lifespan of all-solid-state lithium batteries under fast-charging conditions, thus facilitating commercial applications.

The invention discloses a metal effect pigment composition, a metal effect coating containing the metal effect pigment composition and application. The metal effect pigment composition comprises the following components: at least one aluminum powder pigment and pearlescent pigment, wherein the pearlescent pigment at least comprises at least one silver pearlescent pigment and at least one white pearlescent pigment; wherein the mass ratio of the pearlescent pigment to the aluminum powder pigment is (1: 0.8)-(1: 3). After the metal effect pigment composition is applied to the metal effect coating, the metal effect coating can be endowed with good radar transmittance, good covering power and appearance (including metallic feeling, brightness, flickering property, multi-angle brightness (especially small-angle brightness) effect and the like).

The utility model relates to the technical field of hydrogen evolution electrocatalysts, in particular to a carbon-coated cobalt-based electrocatalyst which comprises carbon cloth serving as a substrate, a carbon-coated CoO / NiCoP porous nanosheet layer is deposited on the surface of the carbon cloth, the carbon-coated cobalt-based electrocatalyst shows excellent electrocatalytic hydrogen evolution activity in alkaline electrolyte, and the performance of the carbon-coated cobalt-based electrocatalyst is superior to that of most transition metal phosphide hydrogen evolution catalysts. Commercialized application of a large-scale water electrolysis hydrogen production technology is expected to be realized.