4 results about "Nonthermal plasma" patented technology

An air treatment device for removing unwanted substances from air, the air treatment device comprising : a non-thermal plasma reactor stage housing comprising an air inlet for receiving the air to be treated, a plurality of non-thermal plasma reactor units for treating the air and an air outlet for exhausting the treated air from the non-thermal plasma reactor stage housing; wherein each of the plurality of non-thermal plasma reactor units comprises a dielectric substrate having a first surface and a second surface, a first electrode disposed on the first surface of the dielectric substrate and a second electrode disposed on the second surface of the dielectric substrate, wherein the first electrode comprises at least one window exposing the dielectric substrate to the air to be treated in the non-thermal plasma reactor stage housing.

The application belongs to the technical field of electro-catalytic material and functional film preparation, and particularly relates to a method for in-situ construction of Ni-LDH film electrode by oxygen non-thermal plasma induction and application of the method in alkaline oxygen evolution reaction. The method comprises the following steps: adding ethanolamine into propionic acid, adding a nickel source, and preparing a nickel-containing precursor solution under the condition of heating and stirring; aging and centrifuging the precursor solution, and taking supernatant as a film-forming sol; spin-coating the film-forming sol on a substrate surface and drying to obtain a precursor film; and placing the precursor film in a microwave non-thermal plasma under an oxygen atmosphere, and in-situ converting the precursor film into a Ni-LDH film electrode containing interlayer anions. The method does not need high-temperature annealing and subsequent hydrothermal activation, and can directly obtain a Ni-LDH film with characteristics of layered double hydroxide. The obtained film shows good oxygen evolution catalytic activity and stability in an alkaline electrolyte, and has an overpotential less than 350 mV and a Tafel slope less than 80 mV / dec under a current density of 10 mA / cm2.

An air treatment device for removing unwanted substances from air, the air treatment device comprising: a non-thermal plasma reactor stage housing comprising an air inlet for receiving the air to be treated, a plurality of non-thermal plasma reactor units for treating the air and an air outlet for exhausting the treated air from the non-thermal plasma reactor stage housing; wherein each of the plurality of non-thermal plasma reactor units comprises a dielectric substrate having a first surface and a second surface, a first electrode disposed on the first surface of the dielectric substrate and a second electrode disposed on the second surface of the dielectric substrate, wherein the first electrode comprises at least one window exposing the dielectric substrate to the air to be treated in the non-thermal plasma reactor stage housing.

The invention relates to a method (1000) for generating a nuclease-free surface, wherein the method comprises: generating (1100) a first non-thermal plasma (10) at atmospheric pressure, wherein the first non-thermal plasma (10) is generated at a first power on a discharge surface; generating (1200) a second non-thermal plasma (20) at atmospheric pressure, wherein the second non-thermal plasma (20) is generated at a second power on the discharge surface, wherein the second power is higher than the first power; generating (1300) a plasma stream (26) from the first non-thermal plasma and the second non-thermal plasma; conducting (1400) the plasma stream (26) to a surface (102, 104) to be cleaned; and inactivating (1500) nucleases on the surface (102, 104, 106) to be cleaned.