Electrocatalyst for electrochemical conversion of carbon dioxide

a carbon dioxide and electrochemical technology, applied in the field of electrochemical catalysts, can solve the problems of low conductivity electrical supports and low surface area

Inactive Publication Date: 2013-10-03
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]These and other features of the present invention will become readily apparent upon further review of the following specification.

Problems solved by technology

Thus, when compared to microscopic or nanoscopic materials, they all have relatively low surface areas and low conductivity electrical supports.

Method used

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Embodiment Construction

[0010]The electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons, such as methanol and methane, includes a copper material supported on carbon nanotubes. The copper material may be pure copper, such that the pure copper forms 20 wt % of the electrocatalyst; or copper and ruthenium supported on the carbon nanotubes such that the copper forms 20 wt % of the electrocatalyst and the ruthenium forms 20 wt % of the electrocatalyst; or copper and iron supported on the carbon nanotubes such that the copper forms 20 wt % of the electrocatalyst and the iron forms 20 wt % of the electrocatalyst; or copper and palladium supported on the carbon nanotubes such that the copper forms 20 wt % of the electrocatalyst and the iron forms 20 wt % of the electrocatalyst.

[0011]The electrocatalyst is prepared by first dissolving copper nitrate trihydrate (Cu(NO3)2 3H2O) in deionized water to form a salt solution. Using exemplary quantities, the copper nitrate trihydrate is diss...

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Abstract

An electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons is provided. The electrocatalyst for the electrochemical conversion of carbon dioxide includes copper material supported on carbon nanotubes. The copper material may be pure copper, copper and ruthenium, copper and iron, or copper and palladium supported on the carbon nanotubes. The electrocatalyst is prepared by dissolving copper nitrate trihydrate in deionized water to form a salt solution. Carbon nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the deionized water, either iron nitrate monohydrate, ruthenium chloride or palladium chloride may also be dissolved in the deionized water to form the salt solution.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to electrochemical catalysts, and particularly to an electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons, such as methanol and methane.[0003]2. Description of the Related Art[0004]Over the past several decades, various electrode materials have been researched for the reduction of carbon dioxide (CO2) into different products, most notably formic acid, carbon monoxide (CO), methane and methanol. Conventional metals used in the research were provided in the form of high purity foils, plates, rotating discs, wires, beds of particles, tubes and mesh. These are all macroscopic materials. Thus, when compared to microscopic or nanoscopic materials, they all have relatively low surface areas and low conductivity electrical supports.[0005]It would be desirable to provide an electrocatalytic material formed on nanostructures, thus greatly increasing available reactive ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C25B11/08B01J21/18C25B11/06B82Y30/00B82Y40/00C25B3/25
CPCC25B11/04C25B11/0478B82Y30/00C25B3/04C25B3/25C25B11/091
Inventor RAHMAN, SALEEM URZAIDI, SYED MOHAMMED JAVAIDAHMED, SHAKEELHOSSAIN, SK SAFDAR
Owner KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
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