公开(公告)号：US20250087778A1

公开(公告)日：2025-03-13

申请号：US18959575

申请日：2024-11-25

Applicant: CHANGZHOU UNIVERSITY

Inventor： Xiazhang LI ,  Taoli HUHE ,  Jiyi ZENG ,  Shixiang ZUO ,  Xuhua YE ,  Xiaofei YIN ,  Chao YAO ,  Haoguan GUI

IPC: H01M10/54 ,  B01J23/75 ,  B01J37/00 ,  B01J37/08 ,  B01J37/32

Abstract: A method for preparing a supported catalyst, including mixing waste lithium battery cathode material and biomass uniformly to obtain a mixture, then putting the mixture into a tube furnace for nitrogen purging, and then heating and calcining to obtain a solid sample after carbothermal reduction treatment; hydrothermal stirring the solid sample, followed by filtration to recover a residue, and drying the residue to obtain a mixed sample of Co3O4, TiO2, and biochar, labeled as TCO; ultrasonically dispersing the attapulgite in an acid solution, stirring in a water bath at 80° C. to obtain a product, washing the product until neutral, filtering, and then drying to obtain an acidified attapulgite (H-ATP); and weighing the TCO, ultrasonically dispersing the TCO in a mixed solution of deionized water and N, N dimethylformamide (DMF), adding the H-ATP into the mixed solution, and performing a microwave hydrothermal reaction, obtaining a sample after centrifuging, washing, and drying, and then performing muffle calcination on the sample to obtain the supported catalyst Co3(Ti)O4/H-ATP.

公开(公告)号：US20240226865A1

公开(公告)日：2024-07-11

申请号：US18614616

申请日：2024-03-22

Applicant: CHANGZHOU UNIVERSITY

Inventor： Xiazhang LI ,  Chao YAO ,  Shixiang ZUO ,  Xuhua YE ,  Fengqin WU ,  Haoguan GUI ,  Guanghui LU ,  Liang WANG ,  Zeyue XU

IPC: B01J35/57 ,  B01J37/02 ,  B01J37/08

CPC classification number: B01J35/57 ,  B01J37/0207 ,  B01J37/0209 ,  B01J37/08 ,  B01J2235/10 ,  B01J2235/15 ,  B01J2235/30

Abstract: The present disclosure provides a honeycomb catalyst for catalytic oxidative degradation of VOCs prepared by an ultrasonic double-atomization process. The honeycomb catalyst is prepared by performing acidification and performing hydrothermal activation in alcoholic solution for honeycomb to modify a surface; dissolving soluble transition metal inorganic salt in deionized water to obtain precursor solution; performing ultrasonic atomization of the precursor solution and the precipitant solution in the ultrasonic atomization device into droplets; placing the modified honeycomb in a special quartz glass reactor, wherein the droplets enter into the quartz glass reactor through a pipeline to come into contact with a surface of a honeycomb hole and rapidly react to generate a hydroxide precursor on the surface of the honeycomb hole; drying the honeycomb into a drying box after performing the ultrasonic atomization, and calcining the honeycomb into a muffle furnace to obtain the honeycomb catalyst loaded with transition metal oxides.