Kenneth C Hua

US Patent:

20210207275, Jul 8, 2021

Filed:

Nov 24, 2020

Appl. No.:

17/247036

Inventors:

- Berkeley CA, US
Lihui Wang - Berkeley CA, US
Kenneth X. Hua - San Jose CA, US
Sichao Ma - Dublin CA, US
Edward Izett - Berkeley CA, US
Sara Hunegnaw - Oakland CA, US
Ajay R. Kashi - Berkeley CA, US
Etosha R. Cave - Berkeley CA, US
Kendra P. Kuhl - Oakland CA, US
Maxwell Goldman - Berkeley CA, US
Angelica L. Reyes - Berkeley CA, US
Kathryn L. Corp - Berkeley CA, US

International Classification:

C25B 9/23
C25B 1/23
C25B 13/08
C25B 13/02
C08F 293/00

Abstract:

Provided herein are membrane electrode assemblies (MEAs) for COreduction. According to various embodiments, the MEAs are configured to address challenges particular to COincluding managing water in the MEA. Bipolar and anion-exchange membrane (AEM)-only MEAs are described along with components thereof and related methods of fabrication.

US Patent:

20200216968, Jul 9, 2020

Filed:

Jan 7, 2020

Appl. No.:

16/736615

Inventors:

- Berkeley CA, US
Ajay R. Kashi - Berkeley CA, US
Kendra P. Kuhl - Berkeley CA, US
Morgan George - Berkeley CA, US
Sichao Ma - Berkeley CA, US
Ziyang Huo - Berkeley CA, US
Etosha R. Cave - Berkeley CA, US
Kenneth X. Hua - Berkeley CA, US

International Classification:

C25B 9/10
C25B 3/04
C25B 13/08
C25B 11/04

Abstract:

Provided herein are systems and methods for operating carbon oxide (CO) reduction reactors (CRRs) for producing methane (CH). Embodiments of the systems and methods may also be used for producing other organic compounds including alcohols, carboxylic acids, and other hydrocarbons such as ethylene (CHCH). According to various embodiments, the systems and methods may be characterized by one or more of the following features. In some embodiments, a membrane electrode assembly (MEA) includes a cathode catalyst layer with a relatively low catalyst loading. In some embodiments, a bipolar MEA includes a thin cation-conducting layer and a thin anion-conducting layer, with the cation-conducting layer being thicker than the anion-conducting layer. In other embodiments a pure anion exchange polymer only membrane may be used to bridge the cathode catalyst and the anode catalyst. These and other features are described further below.