3results about How to "Stable decomposition" patented technology

The invention relates to the technical field of electrocatalysis, in particular to an oxygen / sulfur heterostructure oxygen evolution electrocatalyst and a preparation method and application thereof. Based on an in-situ oxidation strategy, a CuFeO layer is generated on the surface of CuFeS, and the CuFeS-coated CuFeO high-performance oxygen evolution electrocatalyst with a heterostructure is obtained. By constructing a sulfide-oxide heterojunction, a built-in electric field can be formed at an interface to promote charge separation and transfer, so that the electrocatalytic activity is remarkably improved. And on the other hand, the CuFeO layer on the outer layer serves as an armor, and the problem of oxidation of the surface of CuFeS is solved. The electro-catalytic performance and the long-term stability are obviously improved.

The invention provides a synthetic microbial community and application thereof in degradation of trehalose and biofuel cells, and belongs to the technical field of synthetic microbiology and biological energy. A synthetic microbial community is constructed by means of synthetic biology, the synthetic microbial community comprises genetic engineering escherichia coli and shewanella, and the synthetic microbial community can realize a complete metabolic pathway from trehalose to acetic acid and an efficient electron transport chain; the method can be used for treating trehalose-rich wastewater or wastes and the like; the synthetic microbial community can be used for a microbial fuel cell, can stably generate current density and power density which are higher than those of a single strain or a natural mixed flora in the microbial fuel cell, and has good practicability.

The present application relates to air purification technical field, especially to a kind of purification equipment for removing coating formaldehyde, including shell, mounting plate fixedly connected in the cavity of shell.The present application is provided with self-cleaning mechanism, driving motor drives scraper to rotate around filter assembly, and cooperate with spiral conveying roller, dust scraped is automatically transported into collection box, realize the automatic cleaning of filter screen surface, effectively avoid filter screen blockage, ensure the persistence of filtering efficiency, by setting air flow guiding mechanism, servo motor drives rotating ring, on the one hand, drive fan blade to rotate, form auxiliary air flow, enhance air flow, on the other hand, through swing component drive air jet cylinder up and down swing, make air flow evenly into air duct, prolong the residence time and contact area of air flow in photocatalyst area, by setting photocatalyst decomposition mechanism, UV lamp irradiates photocatalyst coating in air duct, improve the purification efficiency and thoroughness of formaldehyde.