Patent · US Active

Method and apparatus for the electrochemical reduction of carbon dioxide

US9145615B2 · kind B2 · utility

17Cited by

50References

21Claims

0Family size

Inventors

Yumei Zhai · Dublin, US
Shan Guan · Fremont, US
Narasi Sridhar · Carmel, US
Arun S. Agarwal · Dublin, US

Key dates

Filing date	Sep 22, 2011
Grant date	Sep 29, 2015
Priority date	—
Expiry date	Jul 30, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/141
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method and apparatus is provided for the electrochemical reduction of carbon dioxide to formate and formic acid. One embodiment features a three-compartment reactor which houses: a gas compartment; a catholyte compartment, which contains a porous cathode having a tin-based catalyst; and an anolyte compartment, which contains an anode having a mixed metal oxide catalyst. Further embodiments include a method for depositing tin onto a porous cathode, tin-zinc cathodes, a reaction method using an acidic anolyte, and pulsed polarization to extend reactor runtimes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.