163 results about "Electron energy spectrum" patented technology

The invention discloses a mixing parameter regulation and control method and system for an SBS-T modified asphalt mixture and a terminal. The method comprises the following steps: analyzing a modification mechanism through a scanning electron microscope and X-ray photoelectron spectroscopy combined technology, dividing three stages of rapid melting and the like, and establishing a temperature-viscosity model; constructing a multi-scale capture system by using an atomic force microscope, a Fourier transform infrared spectrum and a dynamic shear rheometer; designing a five-factor three-level test matrix by adopting a response surface method, and establishing a road performance prediction model in combination with a BP neural network; mixing parameters are optimized in a multi-objective mode based on a genetic algorithm, and dynamic correction is achieved through an Internet of Things sensor and Kalman filtering. The system comprises a mechanism analysis module, a multi-scale detection module, a terminal integrated storage unit, a processing unit and a man-machine interaction unit. According to the scheme, the limitation of traditional single-factor analysis is broken through, microscopic and macroscopic collaborative optimization and dynamic parameter regulation and control are achieved, and the construction adaptability and precision are improved.

The invention relates to the technical field of electron energy measurement, and discloses an electron spectrometer and an electron energy spectrum measurement method and system.The electron spectrometer comprises a magnetic deflection unit used for receiving an incident to-be-measured electron beam, generating a magnetic field and applying the magnetic field to all to-be-measured electrons in the to-be-measured electron beam; the scintillator fluorescent screen is arranged at the downstream of the magnetic deflection unit and used for receiving the deflected electrons to be detected, and the electrons bombard the scintillator fluorescent screen and generate light spots; the optical acquisition unit is used for acquiring a light spot image on the scintillator fluorescent screen; and the signal processing unit is used for processing the light spot image so as to identify the spatial position information of the light spot in the light spot image and convert the spatial position information into electronic energy data. The method has the beneficial effects that the unification of high resolution and high measurement efficiency is realized, and the problem of signal accumulation under a high counting rate of a traditional direct measurement method and the inherent defect of low efficiency of a scanning type magnetic spectrometer are overcome.

The invention belongs to the technical field of batteries, and particularly relates to a composite solid electrolyte, a preparation method of the composite solid electrolyte, a positive electrode material, a positive electrode plate, a solid-state battery and electric equipment. The composite solid electrolyte satisfies at least one of the following conditions: in an X-ray photoelectron spectroscopy spectrogram of the composite solid electrolyte, an O-S bond characteristic peak exists in a binding energy range of 532.0 eV to 533.5 eV of an O 1s spectrum; in an X-ray photoelectron spectroscopy spectrogram of the composite solid electrolyte, an O-Cl bond exists in a binding energy range of 200.0 eV to 201.0 eV of a Cl < 2 > p3 / 2 spectrum. The composite solid electrolyte can give consideration to structural stability, ionic conductivity and a voltage window.

A magnetic recording medium includes a nonmagnetic substrate, an underlayer disposed above the nonmagnetic substrate, and a magnetic recording layer disposed above the underlayer. The magnetic recording layer includes a first magnetic layer disposed above the underlayer, and a second magnetic layer disposed above the first magnetic layer. Each of the first magnetic layer and the second magnetic layer has a granular structure including magnetic grains having a L10 structure and a grain boundary portion. The grain boundary portion of the first magnetic layer includes aluminum nitride, and the grain boundary portion of the second magnetic layer includes hexagonal boron nitride. An aluminum nitride content in the first magnetic layer is in a range of 15 vol % to 35 vol %, and a peak in a B1s spectrum of the grain boundary portion of the second magnetic layer observed using X-ray photoelectron spectroscopy is 191.6 eV or less.

An electrode which includes nanoparticles of a carbon-doped tin oxide of formula C—SnO2-x where x=is from 0.001 to 0.1, having surface oxygen vacancies. The electrode includes a fluorine-doped tin oxide substrate. A film of the nanoparticles is present on at least one surface of the fluorine-doped tin oxide substrate. The surface oxygen vacancies correspond to an O 1s peak shift of 0.5-2 eV in the X-ray photoelectron spectroscopy (XPS) for C—SnO2-x compared to C—SnO2 without surface oxygen vacancies.

To provide a photoresponsive material that solves at least one of the problems of conventional technology. [Solution] The material has a crystalline structure formed by crosslinking at least one lanthanide with an organic group having 1 to 3 carbon atoms, wherein the organic group contains at least carbon atoms which may be partially or entirely substituted with other nonmetallic carbon group elements, and oxygen atoms which may be partially or entirely substituted with other nonmetallic oxygen group elements. A photoresponsive material having a peak component in the range of 533 eV to 534 eV in the O1s spectrum obtained by hard X-ray photoelectron spectroscopy.

The invention provides a method for measuring the magnetic moment of a transition metal material based on XPS, and the method comprises the steps: selecting a to-be-tested material single crystal, and transferring a single crystal sample into an X-ray photoelectron spectrometer; selecting an X-ray source; setting a test point position, and setting scanning parameters including energy passing, scanning step length, beam spot size and a magnetic lens mode; selecting a peak value of a 2p orbit high-resolution narrow spectrum corresponding to the transition metal contained in the to-be-detected sample as a fixed-height reference signal, and etching the surface of the sample to remove surface pollution; determining the position of a 3s orbit characteristic peak according to a broad spectrum, and collecting a 3s orbit high-resolution narrow spectrum of transition metal contained in the sample; collecting a valence band spectrum or a C1s orbit high-resolution narrow spectrum for correcting a broad spectrum and a 3s orbit high-resolution narrow spectrum; correcting the binding energy by adopting a correction reference, carrying out peak-dividing fitting through XPS peak-dividing fitting software, and extracting characteristic parameters of a 3s orbit spin exchange split peak; and calculating to obtain the magnetic moment of the transition metal material.

A battery cell comprising a positive electrode plate, a negative electrode plate, and an electrolyte solution, wherein the electrolyte solution contains a solvent comprising a chain-like carboxylic acid ester solvent, wherein the conductivity of the electrolyte solution is 13 mS / cm to 20 mS / cm, wherein the negative electrode plate comprises a negative current collector and a negative membrane layer arranged on at least one side of the negative current collector, wherein the negative membrane layer comprises a negative electrode material which exhibits a characteristic peak of the phosphorus element 2p with a binding energy between 132 eV and 138 eV in an X-ray photoelectron spectrum (XPS).

To provide a laminate which stably exhibits high barrier properties.SOLUTION: A barrier film includes a layer A on a base material film, wherein the layer A contains Mg and Si, when 10 points are collected at an interval of 1 m in a longitudinal direction of the film from a central part in a width direction, and are measured by a transmission electron microscope, standard deviation in the longitudinal direction of the thickness of the layer A is 30 nm or less, and when 10 points are collected at an interval of 1 m in the longitudinal direction of the film from the central part in the width direction, atomic concentrations (atom%) of a Mg atom and an Si atom of the layer A analyzed by X-ray photoelectron spectroscopy are represented by YMg and YSi, where standard deviation in the longitudinal direction of YMg / (YMg+YSi) is 0.055 or less.SELECTED DRAWING: None

A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

The present invention relates to a solid electrolyte comprising: a sulfide-based lithium ion conductive compound; and a coating layer surrounding the entire surface of the sulfide-based lithium ion conductive compound in the form of a thin film and containing an aluminum compound, wherein, in X-ray photoelectron spectroscopy (XPS) analysis, a first peak appears in a region with a binding energy of 73 to 74 eV and a second peak appears in a region with a binding energy of 75 to 76 eV.

The invention relates to the technical field of material analysis, and discloses a reinforcing steel bar surface oxide structure composition microscale analysis method, which comprises the following steps: obtaining a high-fidelity sample through a layered inert protection sample preparation technology, and sequentially analyzing oxide microstructure and element distribution by adopting a scanning electron microscope-energy spectrum coupling technology, atomic-scale crystal defect observation is realized by combining a spherical aberration correction transmission electron microscope, macroscopic phase composition and microcell chemical valence information are respectively acquired synchronously through X-ray diffraction and X-ray photoelectron spectroscopy, and finally a cross-scale correlation model covering morphological characteristics, crystal structures, phase distribution and chemical states is constructed through multi-source data fusion. And micro-scale structure analysis is realized. Through combination of a multi-source characterization technology, steel bar oxide cross-scale analysis is realized, a high-fidelity sample preparation technology is adopted to guarantee an original state of a sample, a chloride ion diffusion quantitative model fused with crystal defect parameters is constructed, and rust layer protection evaluation is improved from qualitative observation to quantitative prediction.

The invention discloses a synchrotron radiation hard X-ray electron coupling nanoscale high spatial resolution detection method. The method comprises the following steps: 1) selecting synchrotron radiation hard X-rays as a light source; selecting a matched light source energy interval according to the material and thickness of the sample; 2) according to the selected synchrotron radiation hard X-ray energy, selecting a point spread function with high quantum efficiency, a small point spread function and a narrow emission electron spectrum, and calculating a corresponding photocathode material and thickness; 3) detecting the sample by using the light source and the photocathode determined in the above step to obtain a synchrotron radiation hard X-ray transmission image carrying sample structure information, and incidence the synchrotron radiation hard X-ray transmission image on the photocathode; the photocathode emits electrons under the action of incident photons, converts an X-ray transmission signal into an electronic signal, inputs the electronic signal into the electronic imaging system for focusing, amplifying and imaging, and inputs the electronic signal into the imaging recording system; and 4) obtaining a detection result of the sample according to the image recorded by the imaging recording system.

To correctly perform calibration when measuring a carbon-containing semiconductor by an X-ray photoelectron spectroscopy.SOLUTION: A calibration method includes: forming a first layer of metal on a carbon-containing semiconductor; identifying first bond energy derived from a first energy level of the metal when measuring the semiconductor with the first layer formed thereon by an X-ray photoelectron spectroscopy; forming a second layer of an insulator on the semiconductor with the first layer formed thereon; identifying second bond energy derived from the first energy level when measuring the second layer by the X-ray photoelectron spectroscopy; and calculating fourth bond energy obtained by calibrating third bond energy derived from a second energy level of an element when measuring the second layer by the X-ray photoelectron spectroscopy by using only a difference between the first bond energy and the second bond energy.SELECTED DRAWING: Figure 10

The present invention addresses the problem of providing a positive-electrode active material for a lithium-ion secondary battery, the positive-electrode active material having excellent cycling stability. The present invention further addresses the problem of providing a lithium-ion secondary battery and a method for producing the positive-electrode active material for a lithium-ion secondary battery. This positive-electrode active material for a lithium-ion secondary battery includes active-material particles, and the active-material particles comprise composite oxide particles and an adherent layer covering at least some of the surfaces of the composite oxide particles and including lithium aluminosilicate. In a pore distribution examination, the volume of pores having pore diameters of 6-30 nm is 0.00030-0.00100 cm3 / g. The ratio of an Si content to a total content of transition metal elements, which are determined by X-ray photoelectron spectroscopy, is 0.15-2.00 in terms of molar ratio.

To reduce battery resistance.SOLUTION: A positive-electrode active material includes composite particles. The composite particles include active-material particles and deposits. The active-material particles include a lithium-nickel composite oxide. The deposits adhere to at least a part of the surface of the active-material particles. The deposits include phosphorus, boron, and oxygen. A photoelectron spectrum obtained by hard X-ray photoelectron spectroscopy satisfies the relationship of I2 / I1<0.24. I1 indicates the height of a peak around 872 eV, and I2 indicates the height of a peak around 875 eV.SELECTED DRAWING: Figure 7

Provided are an electrode (10) and an electric power storage device (20) with which it is possible to reduce irreversible capacity in a high-temperature environment. The electrode has a mixture layer (12) that contains a carbon material (14). On the surface (13) of the mixture layer, the ratio of the atomic concentration of carbon that is present as an O-C=O bond obtained from a spectrum derived from an O-C=O bond to the total atomic concentration of carbon obtained from a spectrum derived from a C-C bond, a spectrum derived from a C-O bond, a spectrum derived from an O-C=O bond, a spectrum derived from carbonate ions, and a spectrum derived from a C-F bond is 0.065 or more, said spectra being obtained by X-ray photoelectron spectroscopy.

A silicon-carbon composite material, a negative electrode sheet, and a secondary battery. The silicon-carbon composite material comprises elemental silicon and silicon nitride. The silicon-carbon composite material satisfies: 2≤α≤3, wherein the value of α represents the peak intensity ratio of ISi2p to IN1s, and ISi2p and IN1s are respectively the intensities of the characteristic peaks of the silicon-carbon composite material at 103±0.5 eV and 399±0.5 eV in an X-ray photoelectron spectrum. The silicon-carbon composite material has a relatively high specific capacity, and can also achieve good rate capability, cycling performance and expansion performance.

Positive electrode active material particles that inhibit a decrease in capacity due to charge and discharge cycles are provided. A high-capacity secondary battery, a secondary battery with excellent charge and discharge characteristics, or a highly-safe or highly-reliable secondary battery is provided. A novel material, active material particles, and a storage device are provided. The positive electrode active material particle includes a first region and a second region in contact with the outside of the first region. The first region contains lithium, oxygen, and an element M that is one or more elements selected from cobalt, manganese, and nickel. The second region contains the element M, oxygen, magnesium, and fluorine. The atomic ratio of lithium to the element M (Li / M) measured by X-ray photoelectron spectroscopy is 0.5 or more and 0.85 or less. The atomic ratio of magnesium to the element M (Mg / M) is 0.2 or more and 0.5 or less.

A positive electrode active material for lithium-ion secondary batteries that offers high capacity and excellent charge-discharge cycle characteristics. provide. [Solution] A device containing lithium, cobalt, magnesium, oxygen, and fluorine, C Rietveld analysis was performed on the patterns obtained by powder X-ray diffraction using uKα1 rays. When this occurs, the crystal structure has a space group of R-3m, and the lattice constant of the a-axis is 2.814. Greater than ×10⁻¹⁰ m and less than 2.817 × 10⁻¹⁰ m, and c-axis The lattice constant is greater than 14.05 × 10⁻¹⁰ m, which is 14.07 × 10⁻¹⁰. When m is smaller and analyzed by X-ray photoelectron spectroscopy, the magnesium concentration when the cobalt concentration is set to 1 is... The positive electrode active material has a relative um concentration of 1.6 to 6.0.

The invention discloses nanometer graphene oxide and a preparation method thereof. The transverse size of the nanometer graphene oxide is 10-100 nm, and the thickness of the nanometer graphene oxide is 1-2.5 nm. The surface chemical structure meets the following conditions: a C1s peak is analyzed on the basis of X-ray photoelectron spectroscopy, the sum of the atomic percent content of hydroxyl and epoxy groups is not higher than 15%, and the atomic percent content of carboxyl is not lower than 6%. According to the structural design, the structural defect caused by excessive oxidation or reduction in a traditional method is avoided, and the chemical stability and the functionalization potential of the material are improved.

A silicon-carbon composite material, a negative electrode sheet, and a secondary battery. The silicon-carbon composite material comprises elemental silicon and silicon nitride. The silicon-carbon composite material satisfies: 2≤α≤3, wherein the value of α represents the peak intensity ratio of ISi2p to IN1s, and ISi2p and IN1s are respectively the intensities of the characteristic peaks of the silicon-carbon composite material at 103±0.5 eV and 399±0.5 eV in an X-ray photoelectron spectrum. The silicon-carbon composite material has a relatively high specific capacity, and can also achieve good rate capability, cycling performance and expansion performance.

The present invention provides a composite particle that can achieve both high silicon utilization and oxidation inhibition during water dispersion. The composite particle of the present invention is a composite particle having a particle containing carbon material and silicon, and a coating layer containing carbon and oxygen on the surface of the particle, and has a true density of 1.80 to 1.99 g / cm 3 In the Raman spectrum, a peak exists at 450 to 495 cm ‑1 If the intensity of the peak is I Si , and the intensity of the G band is I G , then I Si / I G is 1.3 or less, and in X-ray photoelectron spectroscopy, if the atomic ratios of Si, O, and C are A Si , A O , and A C , and the ratios of SiO2 and SiO are B SiO2 , B SiO , then A Si is 0.05 or more, and I Si / I G and A C / (A C +A Si ×(B SiO2 +B SiO )) have a prescribed relationship.

To provide a laminate film capable of securing adhesiveness of an inorganic material layer to a substrate film while suppressing the production cost.SOLUTION: There is provided a laminate film X comprising a substrate film 10 and an inorganic material layer 20 on the substrate film 10. In the C1s spectrum at an analysis depth in a carbon element ratio of 25 atom% of the X-ray photoelectron spectroscopy in the thickness direction H from the opposite side from the substrate film 10 to the side of the substrate film 10 in the inorganic material layer 20, the peak intensity Icc at 285 eV derived from a C-C bond, the peak intensity Ico at 286.5 eV derived from a C-O bond and the peak intensity Icoo at 289 eV derived from an O=C-O bond satisfy (Ico+Icoo) / Icc≥0.5.SELECTED DRAWING: Figure 1

And electron counting and energy-enhanced diffraction analysis. A method for identifying phase characteristics of a sample is described. The method includes acquiring backscattered electron data of the sample using a direct charged particle detector. The direct charged particle detector includes an array of pixels and is configured to count the number of backscattered electrons detected by each pixel of the array or measure the energy of each backscattered electron detected by each pixel of the array when an electron beam is incident on the sample. The backscattered electron data includes data sets, each data set containing a number of backscattered electrons or measurement energy detected by each pixel of the array when the electron beam is incident on a respective region of the sample. The method further includes determining a respective statistical electronic characteristic or a respective electron spectrum for each data set, and identifying a respective phase characteristic for at least some regions of the sample based on the determined statistical electronic characteristic or the determined electron spectrum. A system for identifying phase characteristics of a sample is also described.

A carbon material is described that contains at least carbon, nitrogen and bromine as elemental components, in which the bromine content, measured by a combustion ion chromatography method, is 50 to 100,000 ppm, based on mass, and the number of carbon atoms C xps and the number of nitrogen atoms N xps , both of which are quantified by X-ray photoelectron spectroscopy, 0.005 ≤ N xps / C xps ≤ 0.300

The present invention provides a positive electrode active material for a lithium-ion rechargeable battery, wherein the positive electrode active material contains Li, M', and oxygen, where M' contains: - Ni at x with respect to the content of M' being between 60.0 mol% and 95.0 mol%; - Co at y with respect to the content of M', where 0 < y < 40.0 mol%; - Mn at z with respect to the content of M', where 0 < z < 70.0 mol%; - D at a with respect to the content of M', where 0 < a < 2.0 mol%, where D includes elements other than Li, O, Ni, Co, Mn, F, W, and B; - F at b with respect to the content of M', where b > 0, preferably between 0.1 mol% and 4.0 mol%; - W at c with respect to the content of M' being between 0.1 mol% and 4.0 mol%; - B at e with respect to the content of M', where 0 < e < 4.0 mol%; and, - where x, y, z, a, e, and c are measured by inductively coupled plasma-optical emission spectrometry (ICP-OES), - where b is measured by ion chromatography (IC), - where x + y + z + a + b + c + e = 100.0 mol%, and where the positive electrode active material has an F content F defined by formula (I) A and a W content W defined by formula (II) A , where the positive electrode active material has an F content F B and a W content W B , where F B and W B are determined by XPS analysis, where F B and W B [[ID=I6]]are each expressed as a mole fraction compared to the sum of the mole fractions of Co, Mn, Ni, F, W, and B measured by X-ray photoelectron spectroscopy, where the ratio F B / F A = 1.0, where the ratio W B / W A > 1.0.

A gallium arsenide single-crystal substrate has a main surface with a circular shape and features R1, R2, R3, R4, R5, and R6, each of which is a first integrated intensity ratio. The first integrated intensity ratio is obtained by determining a spectrum of the detection intensity of a 3d electron of arsenic with respect to a binding energy of a photoelectron emitted outwards from the gallium arsenide single-crystal substrate based on X-ray photoelectron spectroscopy, in which X-rays are applied centrally to the main surface under specific conditions. The first integrated intensity ratio is a ratio of an integrated intensity of an arsenic element present as diarsene pentoxide to the sum of the integrated intensity of the arsenic element present as diarsene pentoxide and the integrated intensity of an arsenic element present as arsenic trioxide.an integrated intensity of an arsenic element present as gallium arsenide and an integrated intensity of an arsenic element present as metallarsene, and wherein R2 and / or R3 and / or R4 is the largest among R1, R2, R3, R4, R5 and R6.

This invention relates to the field of nanomaterials, specifically to a metal-organic framework composite material, its preparation method, applications, and a method for oxidative removal of organic sulfur from fuel oil. The composite material comprises Ce-MOF nanomaterials and MnO2 nanomaterials, wherein the weight ratio of MnO2 nanomaterials to Ce-MOF nanomaterials is 1:(13-15). In the X-ray photoelectron spectrum of the composite material, a characteristic peak exists at 530 eV for the O 1s spectrum. The composite material of this invention exhibits good synergistic effects between MnO2 nanomaterials and Ce-MOF nanomaterials, demonstrating excellent catalytic activity and stability.

An electrode which includes nanoparticles of a carbon-doped tin oxide of formula C—SnO2-x where x=is from 0.001 to 0.1, having surface oxygen vacancies. The electrode includes a fluorine-doped tin oxide substrate. A film of the nanoparticles is present on at least one surface of the fluorine-doped tin oxide substrate. The surface oxygen vacancies correspond to an O 1s peak shift of 0.5-2 eV in the X-ray photoelectron spectroscopy (XPS) for C—SnO2-x compared to C—SnO2 without surface oxygen vacancies.