公开(公告)号：US20220018000A1

公开(公告)日：2022-01-20

申请号：US17359455

申请日：2021-06-25

申请人： CITY UNIVERSITY OF HONG KONG

发明人： Yong YANG ,  Shuo SHUANG ,  Dukhyun CHUNG

IPC分类号： C22C30/00 ,  C22B9/20

摘要： A novel medium entropy alloy having the chemical formula MoxCrNiCo (atomic %) where (x ranges from ˜0.4 to ˜1.0).

公开(公告)号：US20230064413A1

公开(公告)日：2023-03-02

申请号：US17409830

申请日：2021-08-24

申请人： City University of Hong Kong

发明人： Yong YANG ,  Qing YU ,  Jingyang ZHANG ,  Tianyu WANG ,  Minhyuk PARK

IPC分类号： C01B32/15 ,  C03C17/38

摘要： The present invention provides a metal-carbon composite of a core-shell structure and a method of synthesizing the same. The method includes preparing a first polymer-covered glass substrate with a nano-thickness metal film deposited thereon; immersing the first polymer-covered glass substrate with the metal film to delaminate one or more 2D freestanding organic-metal nanosheets from the first polymer-covered glass substrate; transferring the one or more 2D freestanding organic-metal nanosheets onto a second target substrate; and annealing the one or more 2D freestanding organic-metal nanosheets to decompose an organic portion of the organic-metal nanosheet into an amorphous carbon-containing shell forming a metal-carbon nanocomposite of a core-shell structure.

公开(公告)号：US20230063446A1

公开(公告)日：2023-03-02

申请号：US17462106

申请日：2021-08-31

申请人： City University of Hong Kong

发明人： Yong YANG ,  Tianyu WANG ,  Minhyuk PARK ,  Zhibo ZHANG

IPC分类号： C23C14/00 ,  C23C14/02 ,  C23C14/20 ,  C23C16/01 ,  C23C16/02 ,  C23C16/06

摘要： The present invention provides a method of forming a self-rolled metallic nanosheet. The method includes providing a bendable polymeric substrate and forming a hydrogel-based separation layer on the bendable polymeric substrate. A thin-film metallic nanosheet is deposited on the hydrogel-based separation layer, the thin-film metallic nanosheet having a thickness of approximately 150 nm or less to form a nanosheet-hydrogel-polymer composite. Channel cracks are induced in the nanosheet-hydrogel-polymer composite. The hydrogel layer is swelled to delaminate the metallic nanosheet employing the induced channel cracks to form one or more nano-morphology structures selected from scroll morphology, ribbon morphology, spiral morphology, or helix morphology.