Difunctional catalytic material with coating structure as well as preparation method and application of difunctional catalytic material

• Main Authors: WAN JIALEI, HE CHI, AI CHUNLI, JIANG ZEYU, DANG FAN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The preparation method comprises the following steps: adding a silicon source into deionized water, uniformly mixing, then adding a structure-directing agent, uniformly mixing, and then adding a cobalt acetylacetonate ethanol solution to obtain a transparent solution; crystallizing the transparent solution to obtain solid powder; the preparation method comprises the following steps: dissolving palladium chloride and phenanthroline in dimethyl sulfoxide, and uniformly mixing to obtain a transparent solution; adding solid powder into the transparent solution, uniformly mixing, heating to 80-120 DEG C, stirring for 6-12 hours, centrifuging, drying to obtain powder, and roasting the powder to obtain the bifunctional catalytic material with the coating structure. According to the preparation method disclosed by the invention, the construction of Pd-coated Layered-CoOx bimetallic active sites is realized by a two-step ligand pyrolysis method. Due to the synergistic effect of the prepared dual-function catalytic mat