2results about How to "Many surface defects" patented technology

This invention discloses an aluminum-cobalt bimetallic ionic liquid-modified biochar catalyst, its preparation method, and its application, belonging to the technical field of water pollution control and environmental functional materials. The method involves mixing an aluminum-cobalt bimetallic ionic liquid with biomass raw materials, followed by one-step or two-step pyrolysis, then cooling, washing, and drying to obtain the aluminum-cobalt bimetallic ionic liquid-modified biochar catalyst. This method eliminates the need for prior preparation of a biochar precursor followed by secondary loading, enabling simultaneous pore formation, nitrogen doping, aluminum-cobalt bimetallic active site construction, and metal-oxygen coordination structure formation of biochar in a single pyrolysis process. The process is simple, and the raw materials are readily available. The resulting catalyst possesses a high specific surface area, abundant surface defects, and stable aluminum-cobalt synergistic active sites, enabling efficient activation of persulfate and rapid degradation of norfloxacin under near-neutral conditions. It also exhibits good anti-interference properties, cycle stability, and potential for practical water body application.

The application aims to provide a ruthenium molybdenum alloy composite defect type molybdenum oxide electrocatalyst, a preparation method and application thereof, and belongs to the technical field of electrocatalysts. The preparation method comprises the following steps: (1) adding a foamed nickel into a molybdenum salt solution, carrying out a hydrothermal reaction to obtain a Mo-O precursor, and then carrying out joule heating on the precursor to obtain a Mo / MoO x precursor; (2) soaking the Mo / MoO x precursor in a ruthenium salt solution to obtain a Ru-Mo-O precursor; and (3) carrying out joule heat pyrolysis on the Ru-Mo-O precursor under a reducing atmosphere, and obtaining the ruthenium molybdenum alloy composite defect type molybdenum oxide electrocatalyst after the pyrolysis is completed. The prepared RuMo / MoO x electrocatalyst has the advantages of uniform size and large specific surface area, and has good catalytic activity and stability, and can be used for electrocatalytic splitting of water to produce hydrogen in a full pH range.