7 results about "Antichlor" patented technology

The application relates to the technical field of functional materials, and discloses a NiFe-based catalyst resistant to chlorine corrosion and a preparation method and application thereof, the preparation method comprising the following steps: dispersing a nickel source, a zinc source, an iron source and a precipitant in deionized water, uniformly stirring and then reacting, and preparing a precursor after cooling, washing and drying; and placing the precursor in a strong alkali solution, performing immersion etching, and obtaining the catalyst. The precursor with rich active sites is uniformly grown on the substrate through a hydrothermal method, and the Zn is partially etched through a normal-temperature immersion etching method, a large number of oxygen vacancies are introduced, the overpotential of OER is significantly reduced, and the OER activity in seawater splitting is promoted.

The application discloses a preparation method of an electrolytic seawater chlorine corrosion resistant heterogeneous catalytic anode electrode, and relates to the technical field of advanced nanomaterials. A nickel-iron nanosheet structure is constructed in situ on the surface of metal foam through a hydrothermal method, and the surface is modified with organic molecules to obtain a nickel-iron nanosheet array catalyst with a porous carbon heterogeneous structure. The nanosheet structure and the porous carbon are beneficial to the rapid diffusion of oxygen and electrolyte, and a large number of active sites are exposed, which is beneficial to improving the catalytic efficiency. During the oxygen evolution reaction, the surface porous carbon containing amino groups forms a coordination bond with the metal surface to construct a stable adsorption layer, blocks the direct contact of chlorine ions with the metal surface, and effectively inhibits chlorine corrosion. In an alkaline simulated seawater containing 1M KOH and 0.5M NaCl, a current density of 500mA / cm 2 2 and a stability of 200 hours are reached at a lower overpotential (HER: 360mV). The preparation process is simple, and the application has important value in the practical application of electrolytic seawater hydrogen production in the future.

This invention discloses a chlorine-poison-resistant CO oxidation catalyst, its preparation method, and its application, belonging to the field of catalyst technology. The chlorine-poison-resistant CO oxidation catalyst of this invention comprises anatase TiO2 support and active components supported on the support; wherein the active components include Pt, Pd, and Ru. The chlorine-poison-resistant CO oxidation catalyst of this invention achieves a space velocity of 60,000 h⁻¹. ‑1 CO concentration 10000 mg / m³ 3 Under harsh conditions containing 200 ppm HCl or 200 ppm chlorobenzene, complete CO conversion can be achieved at 165 °C, and the catalyst activity retention rate is >95% after 100 h of reaction.

This invention discloses a crystal-faceted catalyst and its preparation method for removing chlorobenzene from pyrolysis gasification gas of organic solid waste, belonging to the technical field of chlorobenzene removal pollutants from pyrolysis gasification gas of organic solid waste. The method includes: firstly, acid etching modification of natural dolomite, which can effectively optimize the pore structure and alkaline site distribution of the support; then, adding cerium nitrate solution to the acid-etched dolomite to obtain an acid-etched dolomite CeO2 composite support; simultaneously placing nickel nitrate, sodium hypophosphite, a halide ion crystal facet control agent, and NaBH4 in a reactor to react and obtain a Ni2P precursor; and then loading the Ni2P precursor onto the composite support using an impregnation method to prepare a Ni2P (201) crystal-faceted catalyst. The crystal-faceted catalyst prepared by this invention can achieve highly active crystal facet directional control, possesses both high-efficiency dechlorination activity and excellent resistance to chlorine poisoning, and is suitable for complex working conditions such as pyrolysis gasification of organic solid waste.

This invention belongs to the field of catalytic oxidation technology of chlorine-containing volatile organic compounds, specifically relating to a tandem material system, its preparation method, and its application. The tandem material system comprises a Cu / ZSM-5 composite material and a Pt / NbCeO2 composite material, which are tandemly connected to form the tandem material. This tandem material is tested at 230 °C and a mass hourly space velocity (WHSV) of 30,000 mL·g. ‑1 ·h ‑1 Under certain conditions, the degradation rate of vinyl chloride is 90%, the CO2 selectivity is 98%, and the HCl selectivity is 82%. It has good stability and is resistant to chlorine and water, making it suitable for the catalytic oxidation of chlorine-containing volatile organic compounds.

The application discloses a chlorine corrosion resistant supported catalyst and a preparation method and application thereof, and belongs to the technical field of electrocatalytic materials, and comprises the following steps: firstly, dispersing zirconium nitrate and metal salt in a solution, controlling the pH value of the solution to be weak alkaline, then aging and centrifuging to obtain a precursor A; finally, calcining the precursor A to obtain the chlorine corrosion resistant supported catalyst. The chlorine corrosion resistant supported catalyst and the preparation method and application thereof are used, the prepared chlorine corrosion resistant supported catalyst has rich Lewis acid sites, can adsorb Lewis base OH ‑ in seawater to generate a hydroxyl layer repelling Cl ‑ in seawater, so that the activity and stability of the catalyst are enhanced, and efficient seawater electrolysis is realized.

This invention discloses a sulfur- and chlorine-resistant VOCs and PM2.5-resistant material. 2.5 A synergistic purification multifunctional filter media and its preparation method are disclosed, comprising a composite-connected sulfur- and chlorine-resistant functional membrane and a catalytic filter media; the catalytic filter media includes a filter media base fabric and an enrichment-catalysis bifunctional catalytic interface wrapped on the surface of the filter media base fabric; the enrichment-catalysis bifunctional catalytic interface includes a shell and a core, wherein the shell is Si-Al-Rb-O x The composite oxide has a core of Pt-Pd-Ce-Ti-Mn-O. x Composite oxides. The multifunctional filter media prepared by this invention possesses the characteristics of low-temperature, high-efficiency catalytic oxidation of VOCs and anti-sulfur and anti-chlorine effects, achieving simultaneous removal of VOCs and PM2.5. 2.5 It has a good function and a long service life.