132 results about "Phenazine" patented technology

The invention discloses a phenazine covalent organic framework / carbon nanotube composite material as well as a preparation method and application thereof, and relates to the technical field of phenazine covalent organic framework composite materials and lithium ion batteries. The preparation method comprises the following steps: firstly, uniformly dispersing carbon nanotubes in a reaction organic solvent, and by taking the liquid-phase dispersed carbon nanotubes as nucleation sites, respectively carrying out dehydration condensation reaction on cyclohexanehexone and different primary amines to form phenazine bonds, thereby realizing in-situ growth of covalent organic frameworks (COFs) in the carbon nanotubes; the phenazine covalent organic framework (P-COFs) coated carbon nanotube composite material is obtained. The composite material solves the problems of poor conductivity and low active site utilization rate of a covalent organic framework material, and has high specific capacity, good rate capability and excellent cycle performance as a lithium ion battery electrode material.

The invention discloses a phenazine-based electrochemical electrode material as well as a preparation method and application thereof. The phenazine-based electrochemical electrode material is an organic small molecule material or an organic polymer which contains nitrogen, has a conjugated structure and can be subjected to electrochemical oxidation-reduction reaction. The phenazine-based electrochemical electrode material disclosed by the invention can be applied to selective separation and extraction of ions, can be used for selective extraction and separation of target ions in a multi-ion complex solution, and can be used for extracting valuable element ions step by step at high performance; the extraction method has the advantages of high ion extraction capacity, low cost, simple process and high element separation and extraction efficiency, is environment-friendly, can realize efficient development and comprehensive utilization in the fields of salt lake resources, marine resources, industrial sewage and wastewater recycling, seawater desalination and the like, and has a better industrialization prospect.

The invention provides a diaphragm and a secondary battery, and belongs to the technical field of secondary batteries, and the diaphragm comprises a base membrane and a coating. Wherein the coating is arranged on one surface, facing the positive pole piece, of the base film, and the coating comprises an electroactive material and a binder; the electroactive material comprises at least one of a quinone derivative, a phenazine derivative, an imide derivative and a phenothiazine derivative. The electroactive material in the diaphragm coating can be dissolved in the electrolyte after the environment temperature reaches the thermal safety critical temperature, and reacts with the positive and negative active materials, so that the charge state of the battery is quickly reduced, and the thermal runaway of the battery is inhibited or even avoided.

The present application relates to the technical field of soil remediation, and discloses a composite microbial inoculum for activating reverse conversion of oxidized iron in dry land soil and application thereof.The composite microbial inoculum comprises aerobic iron-reducing bacteria and phenazine electron shuttles.The present application mediates the aerobic iron-reducing process of the aerobic iron-reducing bacteria strain through the phenazine electron shuttles, significantly improves the electron transfer efficiency, enhances the iron-reducing capacity, and can efficiently generate high-activity weak-crystalline iron oxide under aerobic conditions, thereby breaking through the limitation of traditional iron reduction relying on anaerobic environment;by promoting the reverse conversion of high-crystalline oxidized iron to weak-crystalline oxidized iron, the mineral interface activity is improved, the fixation capacity for Cd, Pb, As and other multi-metals in dry land soil is significantly enhanced, the biological availability thereof is reduced, the biological toxicity and migration risk thereof are greatly weakened, the remediation process is stable, the risk of secondary pollution is low, and the present application has good application prospect and popularization value in the field of heavy metal contaminated soil remediation.

The present invention provides a method for detecting ClO by fluorescence and ultraviolet. ‑ When the anion ClO is added to the pure aqueous solution of PY, ‑ , AcO ‑ ,H2AsO4 ‑ ,Br ‑ ,F ‑ ,Cl ‑ ,ClO4 ‑ ,CN ‑ ,H2PO4 ‑ ,HSO4 ‑ ,N3 ‑ ,NO3 ‑ ,NO2 ‑ ,OH ‑ ,SCN ‑ ,P2O7 2‑ When ClO ‑ It will cause significant quenching of the fluorescence emission spectrum and red shift of the UV absorption spectrum. However, the addition of other anions has no effect on the fluorescence and UV absorption of the phenazine derivative PY solution. It also shows good selectivity and anti-interference ability. At the same time, through fluorescence and UV titration experiments, it was found that ClO ‑ There is a good linear relationship between the concentration and fluorescence intensity, and the minimum fluorescence detection limit is calculated to be 5.59×10 ‑8 The minimum detection limit of M and UV is 5.84×10 ‑7 M. Finally, we made it into a test strip for semi-quantitative detection of ClO ‑ This recognition and detection performance has important application value in the field of ion recognition.

The application discloses a use of phenazine-1-carboxylic acid or a pharmaceutically acceptable salt thereof in preparation of a medicine for inhibiting African swine fever virus. The application uses a double reporter virus rASFV-Gluc / EGFP co-expressing green fluorescent protein and Gaussia luciferase to screen 246 natural small molecule compounds, and finds that phenazine-1-carboxylic acid has a significant inhibiting effect on replication of the ASFV; further evaluation of the inhibiting effect finds that the half maximal cytotoxicity concentration of PCA on target cells of primary porcine alveolar macrophages is 470.5 muM, and the half maximal inhibitory concentration of PCA on the ASFV in PAMs is 1.59 muM. According to a dose-dependent inhibiting experiment result, when the concentration of PCA is 25 muM, the inhibiting effect on the ASFV can reach more than 100 times. The application has application prospects in preparation of medicines or preparations against the ASFV.

The present invention relates to electrolyte compositions comprising distinct redox-active compounds, namely, a redox-active compound, which is phenazine or a phenazine derivative, and a distinct redox-active compound, which is not phenazine or a phenazine derivative. The present invention also relates to the use of such electrolyte compositions as redox flow battery electrolytes. Accordingly, the invention further provides a redox flow battery comprising said compositions.

This invention discloses a method for the biosynthesis and application of fluorinated phenazine and its derivatives, belonging to the field of bioengineering technology. The invention aims to provide a method for synthesizing fluorinated phenazine and its derivatives. Specifically, it provides an in vitro enzyme cascade catalytic reaction method for synthesizing fluorinated phenazine and its derivatives, in which halogenated methyltransferase HMT1 and O-methyltransferase LaphzM, or halogenated methyltransferase HMT1 and N-methyltransferase PhzM, are added to a reaction buffer containing 1-hydroxyphenazine and its derivatives to obtain fluorinated phenazine and its derivatives. The enzyme concentrations of halogenated methyltransferase HMT1 and O-methyltransferase LaphzM are 2:1; the enzyme concentrations of halogenated methyltransferase HMT1 and N-methyltransferase PhzM are 2:1. This establishes a pathway for the synthesis of fluorinated phenazine from 1-hydroxyphenazine and its derivatives, providing a new approach for the biosynthesis of fluorinated phenazine.

The invention discloses a photo-assisted self-charging battery based on a phenazine positive electrode material and a preparation method of the photo-assisted self-charging battery, and belongs to the technical field of aqueous zinc batteries, a phenazine organic matter electrode with electrochemical activity and photo-response activity is used as a zinc ion storage material, and in a safe and environment-friendly aqueous electrolyte, the photo-assisted self-charging battery is prepared. The self-charging process of the organic matter electrode is realized under the photo-assisted condition by utilizing the electron hole transmission characteristic of the nitrogen-containing hybrid organic matter, and the discharge product of the phenazine organic matter electrode absorbs photons to generate electron hole pairs under the photo-assisted effect under the condition of no external power supply through the photo-assisted effect of solar energy, so that the nitrogen-containing hybrid organic matter is charged. Then, holes are diffused to the hole transport layer, electrons are injected into the electron transport layer to form voltage, and the self-charging dezincification process of the electrode is achieved by means of charge / carrier separation.

The invention belongs to the field of organic synthesis, and particularly relates to a synthetic method of a diaryl methane compound. A toluene derivative as shown in a formula 1, an aryl iodide as shown in a formula 2 and a styrene derivative as shown in a formula 3 are subjected to a reaction in the presence of a catalytic amount of PdCl2 (dppf) and 4, 6-di (diphenylphosphine) phenazine and an equivalent amount of LiN (SiMe3) 2 and CsF to synthesize the diaryl methane compound as shown in a formula 4. The coupling reaction of the toluene derivative, the aryl iodide and the styrene derivative is realized by adopting a catalytic amount of PdCl2 (dppf), and the palladium catalyst shows obvious catalytic performance.

The invention belongs to the field of metal ion battery material synthesis, and particularly provides a sulfur-doped oxygen-nitrogen-enriched conjugated organic material and application thereof in Li < + > / Zn < 2 + > ion batteries. The preparation method comprises the following steps: firstly, preparing 2, 3, 8, 9, 14, 15-hexachlorodiquinoline [2, 3-a: 2 ', 3'-c] phenazine (HANT-Cl) by taking cyclohexanehexone and dichlorobenzene diamine as raw materials, and then synthesizing 6S6O and the derivative thereof by taking HATN-Cl, sodium sulfide nonahydrate and a naphthoquinone derivative as raw materials. The obtained electrode material contains a plurality of oxidation-reduction active sites, multi-electron storage can be carried out, the transfer rate of electrons is improved through the large pi conjugated structure of the conjugated quinoneazine material, and therefore the high theoretical specific capacity and the excellent rate performance are achieved. Due to the addition of the sulfur element, the oxidation-reduction potential of the material is improved, the energy density of a battery can be improved, and the material has a wide application prospect in a Li < + > / Zn < 2 + > ion battery system.

The application provides an organic negative electrode and a metal-air battery, the organic negative electrode comprises an organic matter with a low redox potential, the organic matter with the low redox potential comprises phenazine, diquinoxaline phenazine, a nitrogen heterocyclic ring, a carboxylate or an azo compound, the organic matter in the organic negative electrode is corrosion resistant and the redox potential can be adjusted, even reaching a negative reduction potential comparable to that of hydrogen, so that the phenomenon of hydrogen evolution corrosion cannot occur; a large number of functional groups and active sites in the organic matter can induce uniform deposition of metal ions, and there is no condition for dendrite growth and formation of a passivation layer, so that various problems caused by the above metal negative electrode can be completely avoided; the metal-air battery with the above organic negative electrode has the advantages of long cycle time, stable performance, safety, environmental protection and low cost, and has a wide application prospect in the field of large-scale energy storage.

This invention belongs to the field of bioengineering and provides a method for constructing *Pseudomonas aeruginosa* strains that produce 2-hydroxyphenazine and its applications. This invention uses Qlu-1-3 from patent ZL202011026637.X as the starting strain, and achieves this by knocking out a gene that inhibits phenazine synthesis in the genome. mdtA , gspM The gene enabled the engineered strain to produce 2-hydroxyphenazine at concentrations of 156.3 mg / L and 216.4 mg / L, laying the foundation for the subsequent production of 2-OH-PHZ using Pseudomonas aeruginosa.

The invention provides a benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative and a preparation method and application thereof.The benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative is of an asymmetric multi-carbonyl quinone phenazine structure, contains a plurality of oxidation-reduction active sites and can show excellent oxidation-reduction performance, molecules of the benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative are of a conjugated structure, hydrogen bonds exist between the molecules, and the structure of the benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative can be used for preparing the benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative. And the material is difficult to dissolve in an electrolyte, and has stable electrochemical performance in an ion battery. The preparation method of the benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative comprises the following steps: carrying out condensation reaction on a 2, 3-diaminonaphthalene-1, 4-diketone derivative and 2, 3, 5, 6-tetrahydroxy-1, 4-benzoquinone to obtain an intermediate; and then oxidizing the intermediate to obtain the benzo [b] phenazine-1, 2, 3, 4, 6, 11-hexanone derivative disclosed by the invention.

The compounds represented by the following general formula exhibit excellent luminescent properties. Ar 1 Represents benzene ring, naphthalene ring, phenanthrene ring, etc.; D represents 5H-indol[3,2,1-de]phenazin-5-yl, etc.; A represents cyano, phenyl, pyrimidinyl, triazolyl, etc.; m represents 1 or 2; n represents 0 to 2; R 1 ~R 4 It represents H, aryl, cyano, etc.

The invention belongs to the technical field of flow batteries, and particularly relates to an electrolyte for a flow battery, a preparation method of the electrolyte and the flow battery. The electrolyte comprises an alkali solution, a zinc salt, a phenazine additive and a solvent, wherein the structural general formula of the phenazine additive is shown as a formula I or a formula II: (formula I) and (formula II); in the formula I and the formula II, R1 is an electron donor functional group, and R2 is a hydrophilic functional group. According to the electrolyte disclosed by the invention, the redox medium function of the phenazine additive is utilized, dead zinc losing electric contact can be reconverted into zinc with electrochemical activity, and meanwhile, hydrogen evolution side reaction is inhibited, so that the cycle life of the flow battery is remarkably prolonged. The preparation method of the electrolyte is simple and convenient, the formula can be flexibly adjusted according to actual requirements, the cost is low, and the electrolyte required by the flow battery can be rapidly prepared.

The invention discloses the phenazine halogenase PezW for the first time; the halogenase PezW is derived from streptomyces tubercidicus NBRC 13090, and belongs to a flavin dependent type halogenase, and the flavin dependent type halogenase PezW is a flavin dependent type halogenase. The invention also constructs an expression vector containing a nucleotide sequence for coding the phenazine halogenase PezW, a cloning expression method of the phenazine halogenase PezW, and an application of the phenazine halogenase PezW in preparation of halogenated modified compounds. Wherein the compound is hydroxylated phenazine. The halogenation modification is as follows: halogen atoms of a halogen donor are transferred and combined to a phenazine compound; and the halogen donor is NaCl, NaBr or NaI. According to the halogenase PezW, hydroxylated phenazine can be used as a substrate, various halogenated hydroxyphenazine can be obtained, the technical blank of preparing hydroxylated phenazine by an enzyme method is filled, and a remarkable technical effect is achieved. The method not only has milestone significance for the technical development of enzymatic synthesis of HHPs, but also provides a new path for the drug development of phenazine compounds, and has important application value and social significance.

The invention discloses a substituent-modified phenazine leveling agent, an acid copper plating solution and a preparation method and application thereof, chlorine atoms are introduced to a specific position of phenazine for modification, so that the acid copper plating solution containing the leveling agent has a high pore filling rate while obtaining a high-brightness plating layer, and the pore filling capacity of the leveling agent at a low concentration is effectively improved; and resource saving and cost reduction are facilitated. The total synthesis of the chlorine atom modified phenazine leveling agent is realized by using a chlorine-substituted raw material, and no complex reaction process and harsh reaction conditions exist, so that the method has industrial value.

The invention belongs to the field of electrochemical sensors, and discloses an anti-pollution microelectrode for identifying pseudomonas aeruginosa strains and detecting phenazine spatial distribution of the pseudomonas aeruginosa strains as well as a preparation method and application of the anti-pollution microelectrode. The anti-pollution microelectrode comprises a carbon fiber electrode base body, a Fe-HHTP-PDA composite substrate layer and a Fe-HHTP-SBMA anti-pollution layer. The two-dimensional conductive metal organic framework material Fe-HHTP is doped in the anti-pollution layer based on the PDA substrate and the SBMA, so that the problem of signal attenuation caused by insulativity of the anti-pollution layer is successfully solved; by virtue of a two-dimensional ordered structure and a mixed valence iron node, the Fe-HHTP not only serves as a conductive bridge to maintain electron transmission, but also specifically catalyzes an oxidation-reduction reaction of phenazine substances, so that the anti-pollution function is realized, and meanwhile, the detection sensitivity is maintained and even improved. The preparation method is simple and convenient to operate and controllable in modification, and does not need a traditional high-pressure and high-temperature process.

The invention discloses a pyridyl phenazine water-based positive electrode material as well as a preparation method and application thereof, and relates to the technical field of water-based positive electrode materials. The pyridyl phenazine compound provided by the invention is used as an aqueous battery positive electrode material, solves the problems of structural collapse and capacity fading caused by hydration metal ion insertion of the existing inorganic material, is based on a surface functional group synergistic reaction mechanism, is stable in structure, and shows excellent electrochemical performance when being applied to an aqueous zinc ion battery. The synthesis method of the material is simple, the reaction condition is mild, large-scale production and commercial application are facilitated, and the material can also be applied to various aqueous batteries and has wide application prospects.

Disclosed are a radical scavenger, a method for preparing same, and a membrane-electrode assembly containing same, wherein the radical scavenger can maintain the performance of a fuel cell for a long time and enhance the lifespan thereof since the elution of metal ions derived from radical scavenging particles during fuel cell operation can be continuously prevented for a long time. The radical scavenger of the present invention comprises: radical scavenging particles; and a porous protective film on the surface of the radical scavenging particles, wherein the porous protective film comprises at least one material of high oxidative stability selected from the group consisting of silica, carbon nitride, heteroatom-doped graphene, a porphyrin-based compound, a phenazine-based compound, and derivatives thereof.

The invention belongs to the field of lithium ion battery material synthesis, and particularly discloses an organic nitrogen-containing polyquinone material, a preparation method thereof and application of the organic nitrogen-containing polyquinone material in an organic lithium ion battery. The preparation method comprises the following steps: adding 2, 3, 5, 6-tetraamino-1, 4-benzoquinone and a cyclohexanehexone hydrate into an organic solvent, refluxing under the protection of nitrogen, cooling, washing with water, drying in vacuum, and sintering in a tubular furnace to obtain a product. And then reacting the prepared product with a diamine or dinitrile compound to obtain different substituted quinoxaline [2, 3-b] phenazine-1, 2, 3, 4, 6, 8, 9, 10, 11, 13-decaketone derivatives. The derivative has carbon-nitrogen double bonds and carbon-oxygen double bonds with abundant electrochemical reaction activity, the solubility of the compound is reduced by expanding a conjugated structure, the problem of battery stability caused by the solubility is solved, and a lithium ion battery assembled by the derivative has excellent specific capacity and good cycle stability.

The application discloses a kind of based on benzo phenazine donor core asymmetric organic small molecule photovoltaic material and its preparation method and application.The asymmetric organic small molecule photovoltaic material has structure: wherein, D is donor unit, A is acceptor unit;The donor unit is selected from one of the structures shown in formula I: formula I;In formula I, R 12 Independent selection is one of hydrogen, halogen, trifluoromethyl, alkyl, X is selected from one of sulfur atom or selenium atom;The acceptor unit is selected from one of the structures shown in formula II: formula II;In formula II, R 13 It is selected from one of H, F or Cl;Indicate the connection position of acceptor unit or donor unit.The organic small molecule photovoltaic material designed and synthesized in the application has asymmetry, better molecular packing effect, strong crystallinity and solution processing, and can be used in organic solar cell, to improve its energy conversion efficiency.

The present invention relates to a bipolar organic positive electrode material and its preparation method and application, belonging to the technical field of positive electrode material preparation. The structural formula of the bipolar organic positive electrode material of the present invention is #imgabs0# where n≥1. The bipolar organic positive electrode material of the present invention has both phenanthrenequinone and phenazine structures, both of which can be used as energy storage units, have bipolar characteristics, and can store Na + With PF6 ‑ Therefore, the bipolar organic cathode material of the present invention has excellent electrochemical properties. When used as the positive electrode of sodium ion batteries, it exhibits high specific capacity, stable cycling, and excellent rate performance, and has broad application prospects. In addition, the preparation process of the bipolar organic cathode material of the present invention has a simple synthesis route and can be obtained through a single-step synthesis.

This patent application discloses a near-infrared material suitable for solution processing, its preparation method, and its applications, relating to the field of organic light-emitting materials. The solution-processable near-infrared material of this patent application consists of a rigid electron acceptor fragment and a bulky electron donor fragment (N-(9,9-bis(4-(tert-butylphenyl)-9H-fluorene-2-yl)amino)-9,9-bis(4-(tert-butylphenyl))-N-phenyl-9H-fluorene-2-amine), wherein the electron acceptor fragment is diphenyl[a,c]phenazine-11,12-dinitrile. This material is a near-infrared material with thermally activated delayed fluorescence properties, and the fabricated device has a maximum external quantum efficiency of 8.33%.

The invention discloses a phosphonic acid group modified phenazine negative electrode electrolyte as well as a preparation method and application thereof, and relates to the technical field of flow batteries. The phenazine negative electrode electrolyte has a structure shown in the specification, wherein R, R1, R2, R3, R4, R5 and R6 are respectively one of-H,-OCH3,-OCnH2nCH3,-Me,-F,-Cl,-Br,-I,-CnH2nCH3,-OCnH2nPO3H2 and-CnH2nPO3H2, at least one of R, R1, R2, R3, R4, R5 and R6 is-OCnH2nPO3H2, and n is a positive integer. The phenazine negative electrode electrolyte material disclosed by the invention realizes relatively high solubility, stable chemical properties and physical properties and relatively high battery cycle stability, and is suitable for near-neutral aqueous organic salt cavern flow batteries.

The invention relates to the technical field of capacitive deionization, in particular to an organic small molecule containing a nitro-conjugated phenazine structure as well as a preparation method and application of the organic small molecule. The small organic molecule containing the nitro-conjugated phenazine structure is prepared by taking hexaketocyclohexane and 4-nitro-o-phenylenediamine as raw materials and carrying out reflux reaction through an acetic acid solvent under the protection of inert gas through optimized reaction conditions (reflux for 12 hours at 120 DEG C), has a stable aromatic conjugated skeleton and a nitro electron-deficient active center, and has the advantages that the structure is simple, the reaction is stable, and the yield is high. The selective adsorption capacity on ammonium ions (NH4 +) in wastewater is obviously improved. When the material is used as a CDI electrode, the material shows high specific capacity, excellent cycle performance and conductivity, the problem that a traditional carbon-based material is low in NH4 < + > adsorption efficiency is solved, and a novel efficient electrode material is provided for nitrogen pollution wastewater treatment.

This invention relates to a bipolar organic material, its preparation method, and its application in sodium-ion batteries, belonging to the field of organic electrode materials technology. The bipolar organic material is prepared from 4,4-dibromoazobenzene, 5,10-dihydrophenazine, 2-bicyclohexylphosphine-2',6'-diisopropoxybiphenyl (Ruphos), [2'-(amino)[1,1'-biphenyl]-2-yl][[2',6'-di(1-methylethoxy)[1,1'-biphenyl]-2-yl]dicyclohexylphosphine]palladium chloride (Ruphos Pd G2), and sodium tert-butoxide. Because the chemical structure of this material simultaneously contains substances that can react with sodium... + Azo units for reversible storage and for ClO4 ‑ The phenazine unit stores anions, thus exhibiting bipolar characteristics. When used as a cathode material in coin cells, it demonstrates excellent electrochemical performance. Its preparation method is simple, easy to operate, and suitable for large-scale industrial production.

The invention discloses a method for preparing PbS quantum dots through in-situ limitation based on water-soluble column [5] arene host-guest interaction and application of the PbS quantum dots. Water-soluble column [5] arene is used as a host compound, a water-soluble phenazine derivative is used as a guest compound, a supramolecular polymer is assembled in a pure water phase through interaction of the host and the guest, and S < 2-> and Pb < 2 + > are sequentially added to generate the PbS quantum dots in situ. The obtained quantum dot is excellent in optical performance and low in biotoxicity, can realize high-sensitivity detection of lactic acid, and is successfully applied to lactic acid targeted imaging in living cells. The method is simple in process and mild in condition, and the prepared quantum dots are good in stability and have wide application prospects in the fields of biosensing and medical imaging.

Provided herein are engineered pyocyanin demethylases having replacements in in positions A53, I73, A87, T91, M99, A129 and K141 of pyocyanin demethylase PodA of SEQ ID NO: 1 or a derivative thereof and related phenazine degrading agents, compositions, methods and systems, as well as a combined administration of one or more pyocyanin demethylases and antibiotics and / or antibiotics resulting in a synergic inhibition of viability of phenazine producing bacteria, and related phenazine degrading agents, compositions, methods and systems.