公开(公告)号：US20240228453A1

公开(公告)日：2024-07-11

申请号：US18544186

申请日：2023-12-18

Applicant: Xiamen University

Inventor： Xing TANG ,  Weizhen XIE ,  Lu LIN ,  Xianhai ZENG ,  Yong SUN ,  Zheng LI ,  Shuliang YANG

IPC: C07D307/68 ,  B01J6/00 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J27/25 ,  B01J37/00 ,  B01J37/04 ,  B01J37/18

CPC classification number: C07D307/68 ,  B01J6/001 ,  B01J23/42 ,  B01J23/44 ,  B01J23/462 ,  B01J27/25 ,  B01J37/0036 ,  B01J37/04 ,  B01J37/18

Abstract: A catalyst, an application, and a method for preparing 2,5-furanedicarboxylic acid by catalyzing 5-hydroxymethylfurfural in a base-free condition, which include a catalyst having the formula A/MnaBbOx-yVC, wherein A is Pt, Ru, Pd, or Au, B is Co, Ce, Cu, or Ni, a mole ratio of a and b is 1.5-14, and y=0.0-0.4.

公开(公告)号：US20230407015A1

公开(公告)日：2023-12-21

申请号：US18236549

申请日：2023-08-22

Applicant: XIAMEN UNIVERSITY

Inventor： Xianhai ZENG ,  Guihua YAN ,  Lu LIN ,  Yong SUN ,  Xing TANG

IPC: C08J3/075 ,  C08B15/06 ,  C08F251/02

CPC classification number: C08J3/075 ,  C08J2351/02 ,  C08F251/02 ,  C08B15/06

Abstract: A method for preparing anisotropic cellulose-based hydrogel is provided. The method comprises ammoniating the dialdehyde cellulose obtained by oxidizing cellulose using sodium periodate to obtain ammoniated cellulose derivatives; performing Schiff reaction using the ammoniated cellulose derivatives and dopamine to obtain cellulose-based nanosheets; depositing Fe3O4 nanoparticles on a surface of the cellulose-based nanosheets by a deposition method to obtain magnetic cellulose-based nanosheets; and forming the anisotropic cellulose-based hydrogel using the magnetic cellulose-based nanosheets by a polymerization method.

公开(公告)号：US20240294485A1

公开(公告)日：2024-09-05

申请号：US18655540

申请日：2024-05-06

Applicant: Xiamen University

Inventor： Xianhai ZENG ,  Binglin CHEN ,  Gaofeng CHEN ,  Ye TIAN ,  Zheng LI ,  Shuliang YANG ,  Xing TANG ,  Yong SUN ,  Lu LIN

IPC: C07D307/42 ,  B01J23/89

CPC classification number: C07D307/42 ,  B01J23/8913 ,  B01J23/8926

Abstract: A method for preparing 2,5-bishydroxymethylfuran using 5-chloromethylfurfural, the 5-chloromethylfurfural is transformed into the 2,5-bishydroxymethylfuran using a catalyst, a base neutralizer, sodium dithionite, and deionized water.

公开(公告)号：US20220073481A1

公开(公告)日：2022-03-10

申请号：US17472243

申请日：2021-09-10

Applicant: Xiamen University

Inventor： Xing TANG ,  Huai Liu ,  Lu Lin ,  Xianhai Zeng ,  Yong Sun

IPC: C07D307/68 ,  B01J23/889 ,  B01J37/08 ,  B01J37/00 ,  B01J37/04 ,  B01J23/00

Abstract: Bimetal oxide catalyst and methods, a method comprises: mixing and grinding to obtain a mixture comprising a manganese salt (a), at least one of other metal salt (b), and an additive (c), wherein the other metal salt comprises at least one of a copper salt, a cobalt salt, a cerium salt, an iron salt, or a nickel salt, and the additive comprises at least one of polyol or organic acid, and calcining the mixture to obtain the bimetal oxide catalyst.