公开(公告)号：US20210352941A1

公开(公告)日：2021-11-18

申请号：US17386417

申请日：2021-07-27

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH ,  National University of Singapore

Inventor： Xu Li ,  Yu Yuan Chieng ,  Siew Yee Wong ,  Suxi Wang ,  Jen-Yi Huang ,  Weibiao Zhou

IPC: A23L3/3436 ,  A23B7/148 ,  B01J20/02 ,  B01J20/20 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32

Abstract: The invention is directed to a nanostructured composite material comprising a mixture of at least one metal particle such as iron and a carbon material from biomass such as D-glucose, D-glucosamine hydrochloride or α-cyclodextrin. The invention is also directed to a composition comprising the composite material comprising the composite material and an inorganic salt, and a method for synthesizing the composite material comprising immersing the carbon material into a solution of metal ions, drying the impregnated carbon particle and subjecting the impregnated carbon particle to a carbothermal reduction process. The nanostructured composite material is useful as an oxygen scavenging layer in a multi-layer film which comprises the oxygen scavenging layer and an oxygen barrier layer that retards the permeation of oxygen from an external environment.

公开(公告)号：US11134707B2

公开(公告)日：2021-10-05

申请号：US15576696

申请日：2016-05-23

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH ,  National University of Singapore

Inventor： Xu Li ,  Yu Yuan Chieng ,  Siew Yee Wong ,  Suxi Wang ,  Jen-Yi Huang ,  Weibiao Zhou

IPC: B01J20/20 ,  A23L3/3436 ,  A23B7/148 ,  B01J20/02 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  B65D81/26

Abstract: The invention is directed to a nanostructured composite material comprising a mixture of at least one metal particle such as iron and a carbon material from biomass such as D-glucose, D-glucosamine hydrochloride or a-cyclodextrin. The invention is also directed to a composition comprising the composite material comprising the composite material and an inorganic salt, and a method for synthesizing the composite material comprising immersing the carbon material into a solution of metal ions, drying the impregnated carbon particle and subjecting the impregnated carbon particle to a carbothermal reduction process. The nanostructured composite material is useful as an oxygen scavenging layer in a multi-layer film which comprises the oxygen scavenging layer and an oxygen barrier layer that retards the permeation of oxygen from an external environment.

公开(公告)号：US10998550B2

公开(公告)日：2021-05-04

申请号：US16069707

申请日：2017-01-16

Applicant: Agency for Science, Technology and Research

Inventor： Suxi Wang ,  Xu Li ,  Andy Hor ,  Zhongxing Zhang ,  Kia Jia Benny Chew

IPC: H01M4/587 ,  D01D5/00 ,  D01F1/10 ,  D01F9/22 ,  B82Y30/00 ,  D04H3/002 ,  D04H3/03 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/02

Abstract: According to the present disclosure, a method of fabricating a metal-carbon fibrous structure is provided. The method comprises the steps of: (a) forming a fibrous support structure comprising composite nanocrystals and polymeric fibers, wherein each of the composite nanocrystals comprises metal ions connected by organic ligands; (b) growing the composite nanocrystals on the fibrous support structure; and (c) subjecting the fibrous support structure of step (b) to carbonization to form the metal-carbon fibrous structure, wherein the metal-carbon fibrous structure comprises metal nanoparticles derived from the composite nanocrystals comprising metal organic framework (MOF), particularly zeolitic imidazolate framework (ZIF). A metal-carbon fibrous structure comprising carbon based fibers arranged to form a porous network and the carbon based fibers are doped with metal nanoparticles, wherein the carbon based fibers have surfaces which comprise graphitic carbon, is also disclosed herein.

公开(公告)号：US20210046445A1

公开(公告)日：2021-02-18

申请号：US16994216

申请日：2020-08-14

Applicant: Agency for Science, Technology and Research

Inventor： Xu Li ,  Suxi Wang

IPC: B01J20/20 ,  B01J20/02 ,  B01J20/28 ,  C02F1/28 ,  C02F1/461 ,  C02F1/467

Abstract: A method of producing a porous carbon composite fibrous mats formed of a network of carbon fibers incorporated with porous carbon particles. The method includes electrospinning a polymer solution to form a porous layer of polymeric fibers and the polymeric fibers are doped with a precursor of conductive metal particles, wherein the polymer solution includes a polymer and the precursor of the conductive metal particles, electrospraying a metal organic framework suspension onto the porous layer of polymeric fibers, wherein the metal organic framework suspension includes metal organic framework particles, repeating the electrospinning and electrospraying in an alternating manner to form a porous network of polymeric fibers incorporated with the metal organic framework particles, and heating the porous network of polymeric fibers incorporated with the metal organic framework particles to form the porous carbon composite fibrous mats. The porous carbon composite fibrous mats and its applications thereof are also disclosed herein.

公开(公告)号：US10181618B2

公开(公告)日：2019-01-15

申请号：US15329829

申请日：2015-07-29

Applicant: Agency for Science, Technology and Research ,  The University of Liverpool

Inventor： Aled Deakin Roberts ,  Suxi Wang ,  Haifei Zhang ,  Xu Li

IPC: H01M4/583 ,  H01M10/0525 ,  B01J20/20 ,  C01B31/02 ,  H01G11/34 ,  B01J20/30 ,  H01M8/0234 ,  C01B32/00 ,  C01B32/05 ,  H01M4/587 ,  H01M10/052 ,  H01M4/92 ,  H01G11/26 ,  H01G11/86 ,  H01M4/02

Abstract: A method of preparing a porous carbon material is provided. The method comprises a) freezing a liquid mixture comprising a polymer suspended or dissolved in a solvent to form a frozen mixture; b) removing the solvent from the frozen mixture to form a porous frozen mixture; and c) pyrolyzing the porous frozen mixture to obtain the porous carbon material. A porous carbon material prepared using the method, and uses of the porous carbon material are also provided.

公开(公告)号：US20160111723A1

公开(公告)日：2016-04-21

申请号：US14890410

申请日：2014-05-12

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Xu Li ,  Chao Bin He ,  Suxi Wang ,  Siew Yee Wong ,  Shilin Chen

IPC: H01M4/587 ,  D01D5/00 ,  H01M4/04 ,  D04H1/728 ,  D04H1/4242

CPC classification number: H01M4/587 ,  D01D5/003 ,  D01F9/17 ,  D01F9/24 ,  D01F11/128 ,  D04H1/4242 ,  D04H1/728 ,  D10B2101/12 ,  D10B2101/122 ,  D10B2401/16 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/622 ,  H01M2004/027

Abstract: There is provided a conductive fibrous material comprising a plurality of carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The carbonaceous fibers may be fused at fiber-to-fiber contact points by a polymer. The process of making the conductive fibrous material comprises mixing a phenolic polymer with a second polymer to form a polymer solution, preparing phenolic fibers having nano- or micro-scale diameters by electrospinning the polymer solution, and subsequent carbonization of the obtained phenolic fibers, thereby generating carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The conductive fibrous material may be useful in electrode materials for energy storage devices.

Abstract translation: 提供了包含多个碳质纤维的导电纤维材料，其中每个碳质纤维与至少一种其它纤维融合。 碳纤维可以通过聚合物在纤维 - 纤维接触点处熔融。 制造导电纤维材料的方法包括将酚类聚合物与第二聚合物混合以形成聚合物溶液，通过静电纺丝聚合物溶液制备具有纳米级或微尺度直径的酚醛纤维，并随后碳化得到的酚醛纤维 产生含碳纤维，其中每个碳质纤维与至少一种其它纤维融合。 导电纤维材料可用于储能装置的电极材料中。