6 results about "Electron configuration" patented technology

This invention relates to the field of encryption and anti-counterfeiting technology, specifically to a method for preparing and using an organic Sn(IV)-based metal halide reversible light-emitting conversion triple anti-counterfeiting material, comprising introducing organic ligands into a Sn(IV)X4 lattice and doping with ns 2 This invention uses Sn(IV) with a high oxidation state to replace Pb(II) in order to obtain anti-counterfeiting materials. 4+ The outer electron configuration is 4d 10 5s 0 The absence of unstable 5s orbitals gives Sn(IV)-based metal halides their typically excellent environmental and thermal stability, providing the compounds with a rigid crystal structure and stereochemical inertness. Furthermore, through ns... 2 Type Sb metal ions 3+ Doping strategies are employed to enhance the luminescence efficiency of low-dimensional organotin (IV)-based metal halides. This invention utilizes Sb... 3+ Ion doping methods are used to modulate the optical properties of compounds. Sb 3+ Ions belong to ns 2 Type metal ions and Sn 4+ With similar ionic radii and unique photophysical properties, it solves the problem of low luminous efficiency in existing luminescent materials.

The invention provides a preparation method of ammonium ferrous sulfate, and relates to the technical field of inorganic salt preparation.The preparation method of the ammonium ferrous sulfate comprises the following steps that raw materials of iron and a sulfuric acid solution are taken and mixed for a reaction, and a ferrous sulfate solution is obtained; adding solid ammonium sulfate into the ferrous sulfate solution to obtain an ammonium ferrous sulfate solution; and taking the ammonium ferrous sulfate solution, filtering impurities, taking filtrate, and performing evaporative crystallization to obtain ammonium ferrous sulfate. Ferrous sulfate reacts with ammonium sulfate to form double salt ammonium ferrous sulfate, and since the electron configuration is affected by a ligand field, the electron configuration of ferrous iron in the double salt is not easy to oxidize due to the influence of the ligand field, and the ferrous iron is not easy to oxidize even if the ferrous iron is fully contacted with air in the filtering process; the method has the advantages that oxidation of ferrous ions is reduced, the impurity content is reduced, the product purity and the batch stability are improved, additional secondary purification treatment is not needed, and the technological process is simplified.

To provide a photocatalyst capable of efficiently producing methane.SOLUTION: At least one kind of metal ion d0 in which an electron configuration of an outermost d orbital is Md0 and at least one kind of metal ion d10 in which an electron configuration of an outermost d orbital is Md10, a total of the number of kinds of Md0 and the number of kinds of Md10 being 5 or more, in an X-ray diffraction pattern measured by an X-ray diffractometer using a CuK α ray, a half-width of a diffraction peak having the highest intensity among diffraction peaks observed at 2 θ: 29.0 ° to 31.0 ° is 0.20 ° or less.SELECTED DRAWING: Figure 1

The application relates to the technical field of water treatment, and discloses an iron-based coordination assembly as well as a preparation method and application thereof. The iron-based coordination assembly comprises ferrous ions as central ions, and perfluoroalkyl sulfonic acid and / or perfluoroalkyl carboxylic acid with a perfluorinated carbon chain having 7 or 8 carbon atoms as ligand compounds; and the iron-based coordination assembly forms an active catalytic system in an aqueous solution with a pH value of 4.0-5.0. The iron-based coordination assembly provided by the application retains the active 3d electron configuration of Fe 2+ , and effectively breaks the dense hydration layer around Fe 2+ by using the extremely strong hydrophobic effect of the carbon-fluorine chain of the ligand compound, so that a hydrophobic microenvironment rich in NO2 ‑ is constructed at the active site, thereby greatly optimizing the electron transfer path, and successfully solving the key bottleneck of slow reaction rate and low mass transfer efficiency in the traditional Fe 2+ nitrite reduction technology.

The invention provides a novel rare earth doped high-entropy oxide hydrogen isotope permeation resistant coating and a preparation method thereof. The coating is composed of Al, Ti, Cr, Zr, O and at least one rare earth element, through design, the ion radius difference between metal cations is larger than or equal to 10%, the electronegativity difference between the metal cations is larger than or equal to 10%, the special 4f electron configuration of the rare earth element and the lattice distortion effect of a high-entropy system are introduced, and rich and diversified hydrogen isotope capture sites are constructed in the coating. The coating is prepared by adopting a sol-gel method and comprises the steps of preparing a liquid precursor, performing dip-coating to form a film, performing preheating treatment, performing repeated coating, performing final annealing and the like. The method is simple in process and controllable in component, and a compact and uniform amorphous composite structure can be formed at a relatively low temperature. The coating provided by the invention has excellent hydrogen isotope permeation resistance, has a permeation reduction factor (PRF) of more than 2000, and is suitable for nuclear fusion reactors, hydrogen energy storage and transportation equipment and other fields with extremely high hydrogen resistance requirements.