59 results about "Ion trapping" patented technology

Embodiments of the present application provide a separator, a preparation method thereof, a secondary battery, and an electric apparatus. The separator includes a first base film, a coating, and a second base film, where the coating is disposed between the first base film and the second base film, the coating includes an ion-trapping agent, and a reduction potential of the ion-trapping agent relative to lithium metal is 0 V to 2 V. A secondary battery containing the separator exhibits improved cycling performance.

The invention belongs to the technical field of electrocatalytic materials, and discloses a CeO2 / NiCo2O4 heterojunction oxygen evolution reaction electrocatalyst and a preparation method thereof. According to the electrocatalyst, a composite protection layer composed of nitrogen-doped carbon quantum dots and CeO2 is constructed on the surface of a NiCo2O4 nanosheet array, cobalt ions are captured and dissolved out through pyridine nitrogen, reintegration is promoted through CeO2 oxygen vacancy, and interface dynamic self-repairing is achieved. And the nitrogen-doped carbon quantum dots are embedded into the CeO2 layer and are in direct contact with NiCo2O4 to synergistically inhibit cobalt loss and maintain structural integrity. By constructing the CeO2 / nitrogen-doped carbon quantum dot composite interface layer with dynamic ion capture and self-repairing capabilities, the problems of structure instability and performance degradation caused by cobalt ion dissolution of the NiCo2O4-based oxygen evolution reaction electrocatalyst under the working condition of strong oxidizing property are successfully solved; the method has important application value and industrialization prospect in the technical field of green hydrogen energy electrolyzed water.

According to the ion regulation and control device, the ion guide device, the control method, the device, the equipment and the ion guide system provided by the invention, the first guide element and the deflection force field generation module are arranged, under the condition that ions are injected into the first guide element, the first guide element is controlled to apply the reverse electric field opposite to the ion transmission direction, and the deflection force field is generated; thereby trapping ions within the first guide element; controlling the deflection force field generation module to work so as to enable the ions in the first guide element to generate radial deflection; and under the condition that offset is completed, the first guide element is controlled to cancel the reverse electric field so that the first guide element can move in the transmission direction, ions in the first guide element can generate radial offset through the deflection force field generation module, the ions can be more uniformly distributed in the radial direction, and therefore the space area utilization rate is increased, and the transmission efficiency is improved. And the influence of the space charge effect is reduced.

A method for cooling at least one ion (8) within a capture potential of an ion trap (2), comprising: - capturing the at least one ion (8) in the capture potential, wherein the at least one ion (8) oscillates about a potential minimum of the capture potential between a first inflection point region (13) and a second inflection point region (14), - illuminating the at least one ion (8) with a laser beam in the first inflection point region (13) and / or the second inflection point region (14) for cooling the at least one ion, wherein the laser beam has a beam center characteristic of a peak intensity and the beam center is spaced from the potential minimum, and - decreasing a distance of the beam center from the potential minimum until the beam center overlaps with the potential minimum, for further cooling of the at least one ion. Furthermore, a system (1) is specified.

An apparatus fortime-of-flight, TOF, tandem mass spectrometry comprises an ion source for providing precursor ions, a linear ion trap comprising a set of electrodes configured for receiving the precursor ions into the ion trap. A voltage source is configured for applying to the set of electrodes a trapping voltage(s) configured to generate an axial trapping potential field forming a potential barrier to axially trap the received precursor ions within the linear ion trap, and for applying to the set of electrodes an RF voltage(s) configured to generate a radial trapping potential field to radially trap received precursor ions. The voltage source selectively changes the radial trapping potential field to increase the kinetic energy of precursor ions in the ion trapping region so that precursor ions can overcome the potential barrier thereby axially ejecting the selected precursor ions from the linear ion trap. A collision cell is configured to receive the ejected precursor ions and to apply to them a process of collision-induced dissociation to generate product ions therefrom. A mass analyser, such as a time-of-flight, TOF, mass analyser, receives the product ions (and / or any remaining unfragmented precursor ions) and to apply to them a process of mass analysis.

The invention relates to the technical field of surface modification, and discloses a surface modification method based on an ion implantation method, which comprises the following steps: carrying out surface pretreatment on a titanium-based or cobalt-chromium-based implant; forming an interface steady-state layer by adopting low-energy nitrogen ion implantation; low-concentration oxygen ion co-injection is carried out on the steady-state layer to form a discontinuous anti-migration blocking layer; calcium ions, zinc ions and silver ions are injected in sequence, and a depth gradient structure from inside to outside is obtained through biphase modulation bias voltage; then implementing oxygen ion directional injection to form a non-stoichiometric oxide layer; performing alternating electric field aging in a water vapor and phosphate atmosphere to construct an ion trapping layer; and finally, sterilizing and sealing the treated workpiece. By constructing a multi-layer synergistic structure and a dynamic ion regulation and control mechanism, migration and agglomeration of functional ions can be slowed down, and the long-term stability of the surface of the implant is improved.

This invention proposes a long-term low-conductivity composite treatment method for the inner cavity of a hydrogen fuel cell stack heat sink core. The method includes pre-treating the surface of the heat sink core, coating it with a slurry, curing it, and cleaning it. The slurry comprises pH-responsive slow-release microcapsules, which, from the inside out, consist of an ion trapping agent and mesoporous silica grafted with polyacrylic acid. A coating is formed on the surface of the heat sink core by coating and curing the slurry. This slurry integrates the atomic-level physical barrier function of graphene with the intelligent chemical trapping function of the pH-responsive microcapsules, achieving multi-layered protection of "physical barrier as the main component, chemical trapping as a supplement, and intelligent response." This allows the coolant conductivity to be stably controlled below 5 μS / cm under dynamic operating conditions for thousands of hours.

The invention discloses a green residue harmless treatment process based on rare earth calcium residues, and belongs to the technical field of rare earth metal acquisition and waste treatment. The process aims to solve the problems of heavy environmental pollution, high energy consumption, poor selectivity and the like in the prior art. The core of the invention is as follows: a bifunctional complexing agent (e.g., a bifunctional complexing agent) containing an ion capture terminal and a parent terminal is provided; dissolving in a supercritical carbon dioxide fluid to form an extraction medium; enabling the medium to be in contact with the pretreated rare earth calcium slag at the temperature of 40-100 DEG C and the pressure of 10-30 MPa, extracting rare earth elements with high selectivity and forming a rare earth-complex; finally, the rare earth-complex is separated out through pressure reduction, and the carbon dioxide and the complexing agent are recycled. The process realizes the rare earth recovery rate gt; the product purity is gt; the complexing agent and the single cycle utilization rate are gt; and the leaching concentration of fluoride in the treated residues is lower than the national standard limit value, harmlessness is achieved, and the method has the remarkable advantages of being environmentally friendly in the process, low in energy consumption, high in selectivity, simplified in flow and the like.

The present teachings generally relate to generating a pseudo-barrier via an axial RF field. A first voltage is applied to a first pair of rods arranged in a multi-pole configuration, a second RF voltage is applied to a second pair of rods, and a difference between magnitudes and / or phases of the first and second RF voltages is adjusted. As discussed in more detail herein, such a pseudo-barrier may be employed in a variety of different applications. As an example, such a pseudo-barrier may be used to trap ions within a rod group that includes a plurality of rods arranged in a multi-pole configuration. In other applications, adjusting the height of the pseudo-potential barrier established in the rod set along with the application of a DC potential between the rod set and an external electrode can be used to cause mass-selective extraction of ions trapped within the rod set. In other applications, such a pseudo-barrier may be employed in a multiplexing method to perform mass spectrometry.

The invention discloses an optical transparent adhesive tape with an electric tuning refractive index and a preparation method thereof. The optical transparent adhesive tape comprises a polymer matrix; the core-shell structure liquid crystal microcapsule is dispersed in the polymer matrix, the core of the core-shell structure liquid crystal microcapsule contains nematic phase liquid crystals and polymerizable monomers, the shell of the core-shell structure liquid crystal microcapsule is a cross-linked polymer layer, and an ion trapping agent is distributed in the shell; the transparent electrodes are arranged on the two sides of the polymer matrix; wherein the orientation of liquid crystal molecules in the inner core is changed by applying voltage to the transparent electrode, so that the dynamic regulation and control of the overall refractive index of the electrically tuned refractive index optical transparent adhesive tape are realized. According to the electrically tuned refractive index optical transparent adhesive tape provided by the invention, the OCA is successfully upgraded from a passive bonding material to an active optical regulation and control element, low-voltage, rapid and stable regulation and control of the refractive index are realized while excellent bonding performance and optical performance are maintained, and a brand new technical path is opened up for improving the display quality and realizing a novel display function.

The invention belongs to the field of adsorbents, and particularly relates to a high-temperature-resistant titanium-based lithium ion selective adsorbent with high-selectivity lithium ion capturing capability, which is prepared by the following steps: preparing a zirconium / aluminum co-doped precursor based on a solid-phase reaction in an ozone environment; then carrying out short-time thermal shock oxidation modification on the high-temperature precursor and hydrogen peroxide at room temperature to introduce active sites, and then carrying out gradient pickling selective lithium removal. The equilibrium adsorption capacity of the adsorbent is 42-45mg / g, and the selectivity coefficient to Li < + > / Mg < 2 + > is greater than 1200; after 10 times of adsorption-desorption cycles, the adsorption capacity retention rate is higher than 93%. Particularly, the retention rate of the specific surface area is still more than 85% after calcination treatment at the high temperature of 800 DEG C for 2 hours; the adsorption and desorption process is kept at the temperature of 90 DEG C, and the capacity retention ratio is still 85% or above, so that the adsorbent can be used for treating high-temperature brine; the adsorbent is good in high temperature resistance.

The invention discloses application of a poly (benzodifuran diketone) (PBFDO) membrane in a capacitive deionization (CDI) desalination system, and belongs to the technical field of water treatment. The PBFDO is an n-type conjugated polymer, has an environment-stable long-range ordered skeleton structure and abundant carbonyl (C = O) functional groups, and can provide sufficient active sites for Naion capture. The PBFDO is used for the CDI electrode material for the first time, and the constructed CDI desalting system shows relatively high salt adsorption capacity (78.8 mg g < 1 >), excellent adsorption rate (2.6 mg g < 1 > min < 1 >), relatively low energy consumption (0.34 Wh g < 1 >) and good cycle stability. The PBFDO electrode material has efficient ion adsorption performance and excellent electrochemical stability, and a new material system and an application approach are provided for development of a novel polymer-based CDI desalination technology.

This thermally conductive silicone composition contains: (A) an organopolysiloxane (excluding component (D)); (B) a spherical aluminum oxide powder which has an average sphericity of 0.8 or more, 30 or less hydroxyl groups per nm2, and an average particle diameter of 50-170 µm; (C) a spherical or amorphous aluminum oxide powder which has an average particle diameter of 0.1-5 µm; (D) a silane coupling agent; and (E) a cation exchange type and / or amphoteric ion exchange type ion trapping agent which is loaded with at least one element that is selected from among Zr, Bi, Sb, Mg, and Al, the component (E) being in an amount of 0.01-10 parts by mass with respect to 100 parts by mass of the component (A). The volume ratio of adding proportions ((B):(C)) of the component (B) to the component (C) is 5:5 to 9.5:0.5. The thermally conductive silicone composition has excellent storage stability and thermal conductivity.

An apparatus comprising: an ion trap, for example a 2 dimensional, 2D, ion trap such as a linear quadrupole ion trap, LIT, wherein the ion trap comprises a set of electrodes, for example wherein the 2D ion trap comprises two or more pairs of rod electrodes and optionally two end electrodes; a power supply configured to: generate a substantially rectangular radio frequency, RF, voltage waveform, wherein the RF voltage waveform includes a first set of states including a first state having a first voltage level and a second state having a second voltage level, wherein the first state and the second state are mutually opposed; and apply the generated RF voltage waveform to the set of electrodes, wherein the first set of states provides a trapping field in the ion trap for trapping ions in a trapping region thereof; an electron source, configured to inject electrons into the ion trap for reactions thereof with the ions, for example electron capture dissociation, ECD, hot ECD, electron induced dissociation, EID, and / or electron detachment dissociation, EDD; wherein the RF voltage waveform includes a second set of states including a first state having a first voltage level, wherein the first voltage level of the second set of states is between the first voltage level and the second voltage level of the first set of states; and wherein the electron source is configured to inject the electrons into the ion trap during the second set of states, for example only during the second set of states.

An ion focusing device comprising an ion capture element, which includes a plurality of N curved electrodes extending around an axis of the ion capture element, and an opening on an axis of the ion capture element. A multipole ion guide adjacent to the ion capture element, comprising a plurality of N elongated electrodes extending parallel to and around an axis of the multipole ion guide, the axis of the multipole ion guide coinciding with the axis of the ion capture element, each of the N curved electrodes of the ion capture element being configured to receive a radio frequency (RF) signal of the same phase as an RF signal to be applied to at least one elongated electrode of the plurality of elongated electrodes of the multipole ion guide, and further comprising at least two of the N electrodes of the ion capture element being configured to receive RF signals of a different phase.

Embodiments of the present application provide a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a separator, and a negative electrode sheet; at least one of the positive electrode sheet, the separator, or the negative electrode sheet comprises an ion trapping agent; the reduction potential of the ion trapping agent relative to lithium metal is 0-2 V. The cycle performance of the secondary battery provided by the embodiments of the present application is improved.

The utility model discloses a raw material adding device for heavy metal ion capturing agent production, which comprises a base, a feeding device is mounted on the base, an adjusting device is arranged on the base and comprises a fixed sleeve, a rotary sleeve, a threaded sleeve, a linkage sleeve, a matching groove, a push spring, a push plate, a matching plate and a matching block, and the outer wall of the threaded sleeve is connected with the inner wall of the rotary sleeve through threads. The matching groove is obliquely formed in the fixing sleeve, the push plate is connected with the matching block through a push spring, a locking mechanism is arranged on the outer side of the fixing sleeve and comprises a clamping sleeve, a fixing block, a movable hole, a movable groove, a movable block, a clamping spring, a clamping block, a pushing rod, a pushing plate, an arc-shaped spring, a movable plate and a positioning block, and the arc-shaped spring is connected with the movable block and the fixing block. The movable hole is formed in one end of the movable groove, the clamping spring is connected with the two adjacent clamping blocks, the pushing plate is arranged on the pushing rod, the positioning block is installed on the outer side of the fixing sleeve, and the blanking precision, flexible adjustment and structural stability of equipment are guaranteed.

The present disclosure provides electrode portions for generating electric and / or magnetic fields for trapping ions in a trapping zone, a three-dimensional (3D) ion trap including one or more of such electrode portions, systems for trapping ions with such a 3D ion trap, as well as methods for manufacturing such electrode portions. An electrode portions includes an electrode body made of an electrically insulating substrate and elongated in a first direction towards the ion trapping zone, a peak electrode located on an extremity of the electrode body closest to the trapping zone or a side electrode located laterally relative to the extremity, and a connection connected to the peak electrode and leading from the peak electrode through said electrode body away from the trapping zone.

Aspects of the present disclosure relate to efficiently trapping ions for QIP systems. A system may include an ablation laser beam source and an ion trapping structure including: an enclosure with an orifice, a source material that is arranged in the enclosure and receives an ablation laser pulse to provide a plume of atoms. A system may include at least one LED that is arranged in the enclosure and onto which at least a portion of the plume of atoms is deposited, wherein the at least one LED is configured to emit light that desorbs at least one deposited atom through the orifice. A system may include an ion trap with a gap through which the at least one deposited atom desorbed travels from the orifice, and a laser beam source configured to generate a laser beam towards the at least one deposited atom creating a trapped ion.

To provide additional systems and methods for internal ion trapping and accumulation to enhance resolution and sensitivity within IMS and MS systems.SOLUTION: An apparatus for ion accumulation includes multiple regions. A first region receives and transfers ions to a second region using a first drive potential. The second region is switchable between a first state where it generates a first electric field preventing ions from further movement and entering a third region, and a second state where it generates a second electric field that guides the ions toward the third region. When in the first state, the ions are prevented from further movement by the first electric field, which causes the ions to accumulate in the second region. When in the second state, the ions are moved from the second region to the third region by the second electric field. A method of accumulating ions involves switching an electric field applied to a region between a trap state and a release state.SELECTED DRAWING: Figure 6

A charge detection mass spectrometry (CDMS) device comprising: an ion trap for receiving an ion flux and configured for selectively trapping and analysing one or more ions of interest from the ion flux, and at least one primary charge detector. positioned upstream of the ion trap in the path of the ion flux, to analyse the ion flux, wherein the device is configured such that the analysis by the at least one primary charge detector is used to selectively initiate an ion trapping event in the ion trap.

An ion trapping device and a mechanism for determining a measure of capacitance of one or more electrodes of the ion trapping device are described. The ion trapping device includes a plurality of electrodes and a capacitance measurement device, which are formed in a same integrated circuit. The capacitance measurement device determines a measure of capacitance of a (sub-)set of the plurality of electrodes.

A method for driving a linear ion trap having rod electrodes arranged so as to surround a central axis includes: an ion-introducing step for introducing ions into an ion-capturing space surrounded by the rod electrodes, and for capturing the ions by a multipole RF electric field created within the ion-capturing space; and an ion-ejecting step for creating both a DC electric field for ion extraction extending from an external area outside the ion-capturing space into the ion-capturing space through a space between two predetermined rod electrodes neighboring each other around the central axis among the plurality of rod electrodes and the multipole RF electric field, and for sequentially ejecting ions according to their m / z from the ion-capturing space toward the external area through the space between the two predetermined rod electrodes by changing at least one of the multipole RF electric field and the DC electric field.

Embodiments of the present application provide a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a separator, and a negative electrode sheet; at least one of the positive electrode sheet, the separator, or the negative electrode sheet comprises an ion trapping agent; the reduction potential of the ion trapping agent relative to lithium metal is 0-2 V.

The application discloses a method for controlling elution end point in lithium ion trapping agent preparation process, and relates to the field of liquid lithium resource recycling. Based on the positive correlation between the conductivity of eluent and the concentration of free ions in solution, the best conductivity setting value considering structural stability and lithium removal activation effect is determined through the corresponding relationship between step elution test and product trapping performance. In the process of trapping agent elution and activation, the conductivity of eluent is monitored in real time online by using a conductivity meter. If the measured value is greater than the setting value, the cycle elution is carried out; if the measured value is less than or equal to the setting value, it indicates that the elution and activation are completed and the elution is terminated, so that the lithium ion trapping agent with high activity and stable structure is obtained. The conductivity test method is simple and fast, and replaces the inductively coupled plasma emission spectrometry test method, so that the quality fluctuation problem caused by the difficulty in judging the elution end point in the preparation of lithium ion trapping agent can be solved, and the monitoring technical support for the preparation of lithium ion trapping agent with high activity and stability is provided.

The invention relates to an epoxy resin composition and a preparation method thereof, and belongs to the field of electronic packaging. The epoxy resin composition comprises the following components in parts by weight: 5-25 parts of epoxy resin, 2-20 parts of a curing agent, 250-300 parts of filler, 0.1-5 parts of an accelerant, 0.01-5 parts of an ion trapping agent, 0.01-5 parts of a surface treating agent and 0.0-5 parts of other components, according to the epoxy resin composition obtained by optimizing the preparation method and the formula, the heat-conducting property of the epoxy resin composition is improved, meanwhile, the epoxy resin composition also has excellent moisture resistance, low dielectric, heat resistance, flame retardance and good forming capacity, and the reliability of an electronic device is improved; according to the optimized preparation method, the operation convenience of the preparation process of the epoxy resin composition can be improved, the dependence on equipment is reduced, and good economic benefits are achieved.

Disclosed herein are transition metal and / or heavy metal cation capture membranes comprised of zinc imidazole salicylaldoxime (ZIOS) nanosheets deposited on a membrane support, and methods of making and using such metal cation capture membranes. In one non-limiting embodiment, the membrane support comprises a polyvinylidene fluoride (PVDF) membrane that has been modified with a polydopamine (PDA) and a polyethyleneimine (PEI). Three exemplary methods for preparing the metal cation capture membrane comprise: (1) a hydrothermal growth method in a solution; (2) a vacuum-assisted coordination growth method; and (3) an interface coordination growth method. The texture properties of the film as well as the adhesion of the ZIOS to the film carrier may be tuned.

The invention discloses a functionalized lithium ion trapping agent and a preparation method thereof, and relates to the field of liquid lithium resource recycling. The preparation method comprises the following steps: co-heating an aluminum source reagent, a lithium source reagent and water to form a lithium-aluminum intercalation compound, then sequentially adding a carrier and alkali liquor for reaction to prepare a supported lithium ion trapping agent precursor, and then performing gradient water elution to obtain the supported lithium ion trapping agent. The supported lithium ion trapping agent prepared by the invention has dual functions of lithium ion trapping and froth flotation, and can realize trapping, enrichment and separation of lithium ions in oil and gas field produced water.

The present invention relates to an antistatic polycarbonate composition having good cleanliness and a preparation method therefor. The antistatic polycarbonate composition comprises a polycarbonate, an antistatic agent, an ion trapping agent, a compatibilizer, a toughening agent, an antioxidant, a lubricant, and a light stabilizer. In the present invention, a crown ether is incorporated into an antistatic polycarbonate. Under the action of dipole-charge, a negatively charged oxygen atom of the crown ether can be complexed with positively charged metal cations to form a relatively stable complex. By means of the metal ion trapping ability of the unique cyclic structure of the macromolecular crown ether, the ion precipitation performance of the final product is improved, thereby obtaining an antistatic polycarbonate composition having good cleanliness.

A system for trapping ions for measurement thereof may include an electrostatic linear ion trap (ELIT), a source of ions to supply ions to the ELIT, a processor operatively coupled to ELIT, and a memory having instructions stored therein executable by the processor to produce at least one control signal to open the ELIT to allow ions supplied by the source of ions to enter the ELIT, determine an ion inlet frequency corresponding to a frequency of ions flowing from the source of ions into the open ELIT, generate or receive a target ion charge value, determine an optimum threshold value as a function of the target ion charge value and the determined ion inlet frequency, and produce at least one control signal to close the ELIT when a charge of an ion within the ELIT exceeds the optimum threshold value to thereby trap the ion in the ELIT.