Systems and methods for converting carbon dioxide into chemical feedstock

摘要

In one embodiment, carbon dioxide is converted into a chemical feedstock by providing a mixture of plasmonic material and oxygen-conducting material, exposing the mixture to sunlight so that solar energy is absorbed by the plasmonic material which then heats the oxygen-conducting material so that oxygen vacancies are generated, passing carbon dioxide through the mixture, and the oxygen-conducting material removing oxygen atoms from the carbon dioxide to form carbon monoxide.

主权项

1. A method for converting carbon dioxide into a chemical feedstock, the method comprising:
providing a mixture of plasmonic material and oxygen-conducting material, wherein the oxygen-conducting material does not contain ceria and is a perovskite with a general formula of ABO3 or a spinel-type oxide with a general formula of A2BO4 and wherein the A site element is selected from the group consisting of: beryllium, magnesium, calcium, strontium, barium, radium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and two-element combinations thereof; exposing the mixture to sunlight so that solar energy is absorbed by the plasmonic material which then heats the oxygen-conducting material so that oxygen vacancies are generated; passing carbon dioxide through the mixture such that the oxygen-conducting material thermally separates the oxygen atoms from the carbon dioxide to form carbon monoxide.