University of Toronto

Other

Total Se

Cao-Thang Dinh

Edward Hartley Sargent

Bo Zhang

David Sinton

Sjoerd Hoogland

Oleksandr Voznyy

Md Golam Kibria

Alexander Ip

Jixian Xu

Edward H Sargent

Xueli Zheng

Min Liu

Thomas Burdyny

Ali Seifitokaldani

Francisco Pelayo Garcia De Arquer

The invention relates to a composite multilayer carbon dioxide (CO) reduction catalyst, comprising a catalyst layer comprising at least one metal compound, the catalyst layer having opposed first and second sides; a hydrophobic gas-diffusion layer provided on the first side of the catalyst layer; a current collection structure provided on the second side of the catalyst layer. The metal is preferably copper. The invention also relates to a method for electrochemical production of a hydrocarbon product, such as ethylene, using said catalyst.

Composite multilayered electrocatalysts for COreduction and associated methods

An abrupt interface electroreduction catalyst includes a porous gas diffusion layer and a catalyst layer providing a sharp reaction interface. The electroreduction catalyst can be used for converting COinto a target product such as ethylene. The porous gas diffusion layer can be hydrophobic and configured for contacting gas-phase COwhile the catalyst layer is disposed on and covers a reaction interface side of the porous gas diffusion layer. The catalyst layer has another side contacting an electrolyte and can be hydrophilic, composed a metal such as Cu and is sufficiently thin to prevent diffusion limitations of the reactant in the electrolyte and enhance selectivity for the target product. The electroreduction catalyst can be made by vapor deposition methods and can be used for electrochemical production of ethylene in reaction system.

Catalysts with sharp reaction interface for electrochemical CO2 reduction with enhanced selectivity

The present disclosure provides substantially homogeneously dispersed multimetal oxy-hydroxide catalyst comprising at least two metals, at least one metal being a transition metal, and at least a second metal which is structurally dissimilar to at least one metal, such that the multimetal oxy-hydroxide is characterized by being substantially homogeneously dispersed and generally not crystalline. A key feature of the present materials is that the presence of the structurally dissimilar metal results in sufficient strain produced in the final multimetal oxy-hydroxide material to prevent crystallization from occurring. The resulting materials are specifically not annealed at temperatures that would induce crystallization in order to avoid the expected phase segregation that would occur during crystallization.

Homogeneously dispersed multimetal oxy-hydroxide catalysts

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Toronto, Canada

Cao-Thang Dinh