5results about How to "Reduce compounding efficiency" patented technology

The present invention relates to the technical field of biomass raw material methanation, and specifically to a catalyst preparation method and application for biomass straw gas methanation. The catalyst preparation method for biomass straw gas methanation in the present invention has simple steps and is easy to operate; the catalyst is non-toxic and environmentally friendly, and will not cause secondary pollution; electron-hole pairs are generated under the action of light, and the recombination efficiency of electron-hole pairs is reduced by constructing a heterogeneous structure, and the oxidation capacity can be maintained for a long time; the catalyst prepared by the present invention can be used in the methanation process of straw, enhance the conversion efficiency of straw methanation, and then crack to improve the efficiency of hydrogen production.

The invention relates to a perovskite photovoltaic cell and a preparation method thereof, the perovskite photovoltaic cell sequentially comprises a composite substrate, a transparent electrode layer, a hole transport layer, a barrier protection layer, a perovskite light absorption layer, a passivation layer, an electron transport layer and a top electrode layer, the composite substrate comprises an ultraviolet light removal layer and two glass layers, the ultraviolet light removing layer is located between the two glass layers. According to the perovskite photovoltaic cell, the durability and the stability are improved, and the service life of the cell is greatly prolonged.

This invention discloses a bismuth-copper bimetallic coordination nanomaterial, its preparation method, and its applications, belonging to the technical field of biofunctional materials. The prepared bismuth-copper bimetallic coordination nanomaterial can efficiently generate reactive oxygen species (ROS) under ultrasonic stimulation, initiating the sonodynamic therapy (SDT) process; the Cu in this material... 2+ The weakly acidic environment of the tumor microenvironment can also trigger a Fenton-like reaction, generating cytotoxic hydroxyl radicals (•OH) and oxygen in situ, thus initiating the chemokinetic therapy (CDT) process. Through the synergistic effect of sonodynamic therapy (SDT) and chemokinetic therapy (CDT), they jointly inhibit cancer cell proliferation and promote T cell generation.

The invention belongs to the technical field of conductive materials, and particularly relates to a graphene composite conductive material and a preparation method thereof.The graphene composite conductive material is prepared from, by weight, 12-25 parts of MnO2 / graphene composite material, 15-25 parts of graphite powder, 35-50 parts of macromolecule resin and 1-8 parts of filler, according to the MnO2 / graphene composite material, the electron migration efficiency is improved by utilizing the huge specific surface area of graphene, MnO2 particles uniformly grow on a graphene sheet layer, agglomeration and accumulation of the graphene sheet layer in the compounding process can be prevented by uniform loading of MnO2, an effective conductive path is formed by graphite powder and the graphene layer, and the conductivity of the composite material is improved. Functional groups on the surfaces of the graphene and MnO2 are chemically bonded with a macromolecular resin molecular chain, so that the interface interaction is enhanced, and the used filler has relatively high strength and modulus and is used as a reinforcing phase to improve the mechanical property of the graphene composite conductive material.

The invention provides an application of Mn-RuO2 in preparation of a medicine for treating cancer, wherein the cancer is pancreatic cancer. A photoelectrochemical test system proves that Mn-RuO2 has the performance expressions of remarkable fluorescence quenching, longest fluorescence lifetime, relatively low charge transfer resistance and strong photocurrent response, and shows that Mn-RuO2 has excellent carrier separation efficiency and low recombination efficiency. Under ultrasonic irradiation, Mn-RuO2 can effectively improve the hypoxic environment and enhance ROS generation, meanwhile, programmed para-apoptosis and pan-apoptosis signal channels in tumor cells are activated, and the synergistically enhanced anti-tumor effect is shown.