公开(公告)号：US12123097B2

公开(公告)日：2024-10-22

申请号：US17419522

申请日：2020-01-03

Applicant: Northwestern University

Inventor： Jiaxing Huang ,  Chenlong Cui ,  Alane Tarianna O. Lim

IPC: C23C26/00 ,  C01B32/184

CPC classification number: C23C26/00 ,  C01B32/184 ,  C01P2004/30

Abstract: Self-healing coating compositions are provided. In embodiments, such a composition comprises a liquid medium and a network of hollow capsules extending through the liquid medium in three dimensions, the network comprising a plurality of chains formed from the hollow capsules, aggregates of the hollow capsules, or both, wherein exterior surfaces of the hollow capsules of the plurality of chains define a plurality of channels filled with the liquid medium, and wherein the coating composition has a room temperature viscosity greater than that of the liquid medium. Coated surfaces formed from the compositions and methods of protecting surfaces using the compositions are also provided.

公开(公告)号：US12031914B2

公开(公告)日：2024-07-09

申请号：US17630417

申请日：2020-09-18

Applicant: Northwestern University

Inventor： Jiaxing Huang ,  SonBinh T. Nguyen ,  Zhizhi Kong

IPC: G01N21/64 ,  G01N21/17 ,  G01N21/84

CPC classification number: G01N21/6458 ,  G01N21/17 ,  G01N21/6428 ,  G01N21/8422 ,  G01N2021/6432 ,  G01N2021/8427

Abstract: Methods of imaging a 2D sheet are provided. In embodiments, such a method comprises illuminating a sample with light having a wavelength 1, the sample comprising a quenching substrate; a transparent, non-quenching 2D sheet on the quenching substrate; and a fluorescent layer comprising fluorescent dye molecules on the transparent, non-quenching 2D sheet and the quenching substrate, providing background domains and 2D sheet domains in the sample, wherein the light induces fluorescence of the dye molecules in the fluorescent layer. The method further comprises detecting fluorescence from the sample to provide an image of the transparent, non-quenching 2D sheet, wherein an intensity IB of the detected fluorescence from the background domains is less than an intensity I2DSs of the detected fluorescence from the 2D sheet domains, thereby providing contrast in the image.

公开(公告)号：US11873223B2

公开(公告)日：2024-01-16

申请号：US16798829

申请日：2020-02-24

Applicant: Northwestern University

Inventor： Jiaxing Huang ,  Kevin Chiou

IPC: C09D7/20 ,  C09D7/40 ,  C09D1/00 ,  D01F9/12 ,  H01B1/04 ,  B82Y30/00 ,  H01B1/24 ,  C01B32/174 ,  B33Y70/00

CPC classification number: C01B32/174 ,  B33Y70/00 ,  B82Y30/00 ,  C09D1/00 ,  C09D7/20 ,  C09D7/70 ,  D01F9/12 ,  H01B1/04 ,  H01B1/24 ,  C01B2202/06 ,  C01P2006/22

Abstract: Compositions of carbon particles dispersed in phenolic solvents or dispersed in solvent mixtures of one or more phenolic solvents with one or more non-phenolic solvents are provided. The compositions can take the form of liquid dispersions, pastes, gels, and doughs. Also provided are methods of making the compositions and methods of forming the compositions into coatings, films, fibers, and other three-dimensional objects.

公开(公告)号：US20220081777A1

公开(公告)日：2022-03-17

申请号：US17419522

申请日：2020-01-03

Applicant: Northwestern University

Inventor： Jiaxing Huang ,  Chenlong Cui ,  Alane Tarianna O. Lim

IPC: C23C26/00 ,  C01B32/184

Abstract: Self-healing coating compositions are provided. In embodiments, such a composition comprises a liquid medium and a network of hollow capsules extending through the liquid medium in three dimensions, the network comprising a plurality of chains formed from the hollow capsules, aggregates of the hollow capsules, or both, wherein exterior surfaces of the hollow capsules of the plurality of chains define a plurality of channels filled with the liquid medium, and wherein the coating composition has a room temperature viscosity greater than that of the liquid medium. Coated surfaces formed from the compositions and methods of protecting surfaces using the compositions are also provided.

公开(公告)号：US11108045B2

公开(公告)日：2021-08-31

申请号：US16341484

申请日：2017-10-24

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Jiaxing Huang ,  Jiayan Luo

IPC: H01M4/02 ,  H01M4/587 ,  C01B32/184 ,  H01M10/0525

Abstract: The invention relates to a host material for stabilizing a Li metal electrode, fabricating methods and applications of the same. The host material includes crumpled graphene balls operably defining a scaffold having volumes and voids inside and in between the crumpled graphene balls so as to allow uniform and stable Li deposition/dissolution inside and in between the crumpled graphene balls without electrode volume fluctuations or with sufficiently small electrode volume fluctuations. The crumpled paper ball-like structures of graphene particles can readily assemble to yield the scaffold with scalable Li loading up to 10 mAh cm-2 within tolerable volume fluctuations. High Coulombic efficiency of 97.5% over 750 cycles (1500 hours) is achieved. Plating/stripping Li up to 12 mAh cm-2 on the crumpled graphene scaffold does not experience dendrite growth.

公开(公告)号：US20190157666A1

公开(公告)日：2019-05-23

申请号：US16188886

申请日：2018-11-13

Applicant: NORTHWESTERN UNIVERSITY ,  KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCE

Inventor： Jiaxing Huang ,  Hee Dong Jang ,  Jiayan Luo

IPC: H01M4/36 ,  H01M4/04 ,  C09C1/30 ,  H01M8/16 ,  H01M4/88 ,  H01M4/96 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/02 ,  B82Y40/00 ,  B82Y30/00 ,  C01B32/194 ,  H01M4/62 ,  H01M4/1395 ,  H01M4/583

Abstract: Capsules comprising crumpled graphene sheets that form a crumpled graphene shell encapsulating an internal cargo comprising nanostructures of a second component are provided. Also provided are anode materials for lithium ion batteries comprising the capsules, wherein the nanostructures are composed of an electrochemically active material, such as silicon.

公开(公告)号：US10138439B2

公开(公告)日：2018-11-27

申请号：US15281471

申请日：2016-09-30

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Jiaxing Huang ,  Qian Wang ,  Yip-Wah Chung ,  Xuan Dou

IPC: C10M141/12 ,  C10M139/04 ,  C10M125/02

Abstract: A method for forming a lubrication material using self-dispersed crumpled graphene balls as additives in a lubricant base fluid for friction and wear reduction. The lubricant base fluid may be, for example, a polyalphaolefin type-4 (PAO4) oil. After the crumpled graphene balls are added as additives in the lubricant base fluid, the lubricant base fluid with the additives are sonicated for a sonicating time period, so that the crumpled graphene balls are self-dispersed in the lubricant base fluid to improve friction and wear properties of the lubricant base fluid. In some cases, a dispersing agent, such as Triethoxysilane, may be added in the lubricant base fluid to enhance stability of dispersion of the crumpled graphene balls in the lubricant base fluid. The crumpled graphene balls may stay stably dispersed in the lubricant base fluid between a lower temperature (such as −15° C.) to a higher temperature (such as 90° C.).

公开(公告)号：US20240343585A1

公开(公告)日：2024-10-17

申请号：US18753541

申请日：2024-06-25

Applicant: Northwestern University

Inventor： Che-Ning Yeh ,  Jiaxing Huang

IPC: C01B32/198

CPC classification number: C01B32/198 ,  C01P2006/82 ,  C01P2006/90

Abstract: Graphene oxide doughs are provided. Also provided are dense, glassy solids made from the doughs and methods of making the doughs and the solids. The doughs and solids have high graphene oxide or reduced graphene oxide contents, and the sheets in the doughs and solids lack long-range lamellar stacking order.

公开(公告)号：US12049403B2

公开(公告)日：2024-07-30

申请号：US17274889

申请日：2019-09-13

Applicant: Northwestern University

Inventor： Che-Ning Yeh ,  Jiaxing Huang

IPC: C01B32/198

CPC classification number: C01B32/198 ,  C01P2006/82 ,  C01P2006/90

Abstract: Graphene oxide doughs are provided. Also provided are dense, glassy solids made from the doughs and methods of making the doughs and the solids. The doughs and solids have high graphene oxide or reduced graphene oxide contents, and the sheets in the doughs and solids lack long-range lamellar stacking order.

公开(公告)号：US20220325112A1

公开(公告)日：2022-10-13

申请号：US17715637

申请日：2022-04-07

Applicant: Northwestern University

Inventor： Limei Liu ,  Jiaxing Huang

IPC: C09D5/08 ,  C09D7/48 ,  C09D7/62 ,  C04B41/50 ,  C04B41/45 ,  C04B35/622

Abstract: Methods of forming oxidation barriers are provided. An illustrative method comprises applying a clay mineral coating composition comprising a solvent and exfoliated clay mineral sheets, e.g., exfoliated vermiculite sheets, to a surface of a substrate; and removing solvent from the clay mineral coating composition as-applied to the surface, thereby forming a coating comprising the exfoliated clay mineral sheets on the surface. The oxidation barriers are also provided.