9 results about "Metallofullerene" patented technology

The invention provides embedded metal fullerene and a preparation method thereof. The preparation method comprises the following steps: mixing a metal source and graphite powder, and filling a hollow graphite rod with the mixture to prepare an anode; the electrode is installed at the anode end of an electric arc furnace, and on-line activation is conducted through anode and cathode short-circuit current under the inert atmosphere; then carrying out arc discharge under specific air pressure and current, and collecting generated carbon ash; performing ultrasonic extraction by using an organic solvent to obtain a fullerene crude extracting solution; and finally, performing multi-stage separation and purification by high performance liquid chromatography, and performing primary and fine separation by sequentially adopting preparative and semi-preparative chromatographic columns to obtain a high-purity product. According to the method, a complete technical path capable of efficiently and controllably preparing the ultra-high-purity embedded metal fullerene is formed through a synthesis process integrating online activation and accurate atmosphere regulation and control and a multi-stage gradient chromatography purification strategy, and a solid foundation is laid for application of atomic-scale accurate materials in the frontier fields of quantum devices and the like.

This invention relates to a fullerene derivative, its preparation method and application, and a tin-based perovskite solar cell photovoltaic device, belonging to the field of optoelectronic materials and devices technology. The fullerene derivative of this invention has the structure shown in Formula I; in Formula I, X... ‑ It is a halide ion or pseudohalogen ion; R is an alkenyl, four-membered cycloalkyl, or dithiocyclopentyl; Fu is C 60 C 70 C 84 Alternatively, it can be an embedded metallofullerene. In the fullerene derivatives of this invention, R is an alkenyl, a four-membered cycloalkyl, or a dithiocyclopentyl group. R can open double bonds or open rings to form polymers. Furthermore, the thiol group after ring opening of the dithiocyclopentyl group and the carbonyl group in the structure can form coordination bonds with divalent tin ions in tin-based perovskite solar cells, thereby regulating the crystallization rate of perovskite and reducing the lattice stress of perovskite. At the same time, the fullerene derivatives have good solubility, reducing the lattice stress generated by rapid crystallization of the perovskite active layer, and further improving the stability of tin-based perovskite solar cells.

The invention relates to application of a metal fullerene-organic framework composite spinning functional material in oxygen detection, and belongs to the technical field of metal fullerene composite materials. The metal fullerene-organic framework composite spinning functional material has sensitive response characteristics to oxygen molecules, and realizes real-time in-situ monitoring of oxygen gas adsorption, diffusion and concentration change processes by combining an electron paramagnetic resonance technology, so that a new method is added for an oxygen analysis technology, and oxygen analysis requirements under different working conditions are met.

The invention relates to an embedded metal fullerene detection method, device, equipment and medium, and the detection method comprises the following steps: obtaining a mass spectrum of an embedded metal fullerene sample, and analyzing to obtain the molecular weight and molecular formula of the embedded metal fullerene sample; judging based on the molecular weight and the molecular formula of the embedded metal fullerene sample, and if the embedded metal fullerene corresponding to the molecular weight and the molecular formula is judged to be non-target embedded metal fullerene, stopping the subsequent detection work; if it is judged that the embedded metal fullerene corresponding to the molecular weight and the molecular formula is the target embedded metal fullerene, an ultraviolet-visible-near infrared absorption spectrum and an X-ray diffraction image of the embedded metal fullerene sample are obtained based on a purified product of the embedded metal fullerene sample. According to the detection method, the sample consumption can be reduced, and the cost is saved.

The application provides a preparation method of an amino fullerene derivative, which comprises the following steps: adding an amine compound into a chlorinated fullerene solution, stirring the reaction at room temperature, and obtaining the amino fullerene derivative after the reaction is completed; the amine compound is a primary amine compound; no acidic reagent is added in the reaction process of the method; the fullerene is selected from at least one of hollow fullerenes, metal fullerenes, heterocyclic fullerenes and endohedral fullerenes. 60 The method realizes controllable amino modification of the fullerene by adding a secondary amine or a tertiary amine to regulate the nucleophilic substitution reaction of the primary amine compound on C 16, and obtains a series of novel structure tetraamino epoxy fullerene derivatives with clear molecular structures.

A kind of detection method, device, equipment and medium of metal-embedded fullerene, the detection method includes: obtaining the mass spectrum of metal-embedded fullerene sample, and the molecular weight and molecular formula of metal-embedded fullerene sample are obtained by analysis;Judgment is carried out based on the molecular weight and molecular formula of metal-embedded fullerene sample, if the metal-embedded fullerene corresponding to the molecular weight and molecular formula is non-target metal-embedded fullerene after judgment, stop subsequent detection work;If the metal-embedded fullerene corresponding to the molecular weight and molecular formula is target metal-embedded fullerene after judgment, based on the purification of metal-embedded fullerene sample, obtain its ultraviolet-visible-near infrared absorption spectrum and X-ray diffraction image.This kind of detection method of the present application can reduce sample consumption and save cost.

The invention relates to application of a metal fullerene-organic framework composite spinning functional material to air pressure measurement, and belongs to the technical field of metal fullerene composite materials. Loading the metal fullerene-organic framework composite spinning functional material into a quartz paramagnetic tube, adjusting the air pressure in the quartz paramagnetic tube, and collecting EPR signals of the material under different air pressures by using an electron paramagnetic resonance spectrometer; analyzing the peak heights of the EPR signals under different air pressures, and performing data fitting analysis by taking the air pressure values as abscissas and the peak heights as ordinates to obtain a relation equation; the method comprises the following steps: connecting a quartz paramagnetic tube filled with a metal fullerene-organic framework composite spinning functional material with a to-be-detected target system, and collecting an EPR signal; and substituting the peak height of the EPR signal into the relation equation to obtain an air pressure value of the target system. The self-spinning functional material can show excellent linear response in a low-vacuum region and a high-vacuum region, and meets the requirements for air pressure monitoring sensitivity and range in different scenes.

The present application relates to a kind of metal fullerene electron spin probe and its application in measuring the adsorption gas capacity of porous material.The metal fullerene electron spin probe of the present application, the electron spin probe is obtained by the metal fullerene containing electron spin being adsorbed into the channel of porous material;The metal fullerene containing electron spin is selected from Sc3C2@C 80 And / or Y2@C 79 N.The present application utilizes metal fullerene electron spin probe to perceive the adsorption capacity of porous material to gas, and can realize in-situ gas perception and measurement.The metal fullerene electron spin probe of the present application can realize the online, real-time, non-destructive detection of target gas on electron paramagnetic resonance spectrometer.

The application discloses application of a metal fullerene electron spin probe in measurement of material phase transition, wherein the metal fullerene is paramagnetic metal fullerene; the paramagnetic metal fullerene is at least one of La@C 82 , Y@C 82 , Sc@C 82 , Sc3C2@C 80 , Y2@C 79 N or a combination thereof. The application is based on high sensitivity of electron spin of the metal fullerene, the metal fullerene is added into the material, the high-efficiency regulation of spin state in the metal fullerene is utilized according to state change in the material phase transition, and the electron paramagnetic resonance signal is utilized to reflect the material phase transition process; the electron spin probe can improve the accuracy and sensitivity of the phase transition measurement, and in-situ measurement of the material deep phase transition can be realized.