公开(公告)号：US20220023845A1

公开(公告)日：2022-01-27

申请号：US17246381

申请日：2021-04-30

Applicant: Nanyang Technological University

Inventor： Lan ZHANG ,  Siew Hwa CHAN ,  Bin MIAO

IPC: B01J23/889 ,  B01J37/00 ,  B01J37/08 ,  B01J37/04 ,  C01B3/26 ,  B01J37/14 ,  B01J37/18

Abstract: Here disclosed is a composite catalyst for methane cracking and a method of producing the composite catalyst. The composite catalyst includes a substrate formed of metal oxide, and one or more catalytic transition metals solubilized in the metal oxide, wherein the metal oxide includes a metal which differs from the one or more catalytic transition metals, wherein the metal oxide forms a matrix which the one or more catalytic transition metals are solubilized in to render transition metal ions from the one or more catalytic transition metals, wherein the transition metal ions under a reducing atmosphere diffuse to reside as transition metal nanoparticles at a surface of the substrate and the transition metal nanoparticles under an oxidizing atmosphere diffuse away from the surface to reside as transition metal ions in the metal oxide, and wherein the transition metal nanoparticles at the surface induce carbon from the methane cracking to deposit on the transition metal nanoparticles and have the carbon deposited grow away from the substrate.

公开(公告)号：US20190015804A1

公开(公告)日：2019-01-17

申请号：US16080305

申请日：2017-03-22

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Hongquan HE ,  Siew Hwa CHAN ,  Ovi Lian DING ,  Caizhi ZHANG ,  Lan ZHANG

IPC: B01J7/02 ,  B01J16/00 ,  C01B3/06 ,  F17C11/00 ,  B01J8/08 ,  H01M8/04082

CPC classification number: B01J7/02 ,  B01J8/082 ,  B01J16/005 ,  B01J2208/00548 ,  C01B3/065 ,  F17C11/005 ,  H01M8/04201 ,  H01M8/065

Abstract: A hydrogen generator includes a container having a gas outlet that is configured to contain a soluble chemical fuel that reacts with a catalyst to generate hydrogen. A control cylinder is attached to the container and comprises a piston configured to travel axially within the control cylinder, a pole attached to the piston and extending into the container, a catalyst holder provided within the container and connected to the pole, resilient means biasing the catalyst holder towards a bottom of the container, and a gas inlet port. A gas flow line is in fluid communication with the gas outlet and has a first end in fluid communication with the gas inlet port, a second end configured to feed hydrogen to a hydrogen-consuming device, and a two-way valve provided to allow fluid communication between the first and second ends of the gas flow line to be selectably established or cut off.