摘要:
An electrochemical device comprises an anode and a cathode. An electrocatalyst mixture is placed between said anode and cathode. The electrocatalyst mixture comprises at least one Catalytically Active Element and, separately, at least one Helper Catalyst comprising an organic molecule, an organic ion, or a mixture of organic molecules and organic ions. The electrocatalyst mixture electrochemically converts carbon dioxide to one or more carbonaceous reaction products via the reaction: CO2+2e−+2H+→carbonaceous reaction products, at overpotentials of 0.9 V or less.
摘要:
A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
摘要:
Electrochemical devices for converting carbon dioxide to useful reaction products include a solid or a liquid with a specific pH and/or water content. Chemical processes using the devices are also disclosed, including processes to produce CO, HCO−, H2CO, (HCO2)−, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO−, CH3COOH, C2H6, (COOH)2, (COO−)2, acrylic acid, diphenyl carbonate, other carbonates, other organic acids and synthetic fuels. The electrochemical device can be a CO2 sensor.
摘要:
An environmentally beneficial process for the production of fuels and chemicals employs carbon dioxide from a natural source or from an artificial chemical source that would otherwise be discharged into the environment. The carbon dioxide is converted to formic acid and the formic acid is then non-biologically converted to fuels and/or chemicals without the intermediate process of hydrogenating the formic acid to methanol or reacting the formic acid with ammonia to form formamide. In the present process, formic acid is converted to one of seven primary feedstocks: formaldehyde, acrylic acid, methane, ethylene, propylene, syngas, and C5-C7 carbohydrates. The formaldehyde, acrylic acid, methane, ethylene, propylene, syngas and/or short chain carbohydrates can either be used directly, or can be converted into a wealth of other products.
摘要:
A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
摘要:
A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
摘要:
A process for the production of organic acids having at least three carbon atoms comprises the steps of forming an amount of carbon monoxide and reacting the amount of carbon monoxide with an amount of an unsaturated hydrocarbon. The reaction is preferably carried out in the presence of a supported palladium catalyst, a strong acid, and a phosphine. In some embodiments, the unsaturated hydrocarbon is one of acetylene and methylacetylene, and the organic acid is one of acrylic acid and methyl acrylic acid. The reacting step is preferably performed with carbon monoxide produced from carbon dioxide.
摘要:
Electrochemical devices comprising electrocatalyst mixtures include at least one Catalytically Active Element and, as a separate constituent, one Helper Catalyst. The electrocatalysts can be used to increase the rate, modify the selectivity or lower the overpotential of chemical reactions. These electrocatalysts are useful for a variety of chemical reactions including, in particular, the electrochemical conversion of CO2. Chemical processes employing these catalysts produce CO, HCO−, H2CO, (HCO2)−, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO−, CH3COOH, C2H6, (COOH)2, or (COO−)2. Devices using the electrocatalysts include, for example, a CO2 sensor.
摘要:
An environmentally beneficial process for the production of fuels and chemicals employs carbon dioxide from a natural source or from an artificial chemical source that would otherwise be discharged into the environment. The carbon dioxide is converted to formic acid and the formic acid is then non-biologically converted to fuels and/or chemicals without the intermediate process of hydrogenating the formic acid to methanol or reacting the formic acid with ammonia to form formamide. In the present process, formic acid is converted to one of seven primary feedstocks: formaldehyde, acrylic acid, methane, ethylene, propylene, syngas, and C5-C7 carbohydrates. The formaldehyde, acrylic acid, methane, ethylene, propylene, syngas and/or short chain carbohydrates can either be used directly, or can be converted into a wealth of other products.
摘要:
An electrochemical device comprises an anode and a cathode. An electrocatalyst mixture is placed between said anode and cathode. The electrocatalyst mixture comprises at least one Catalytically Active Element and, separately, at least one Helper Catalyst comprising an organic molecule, an organic ion, or a mixture of organic molecules and organic ions. The electrocatalyst mixture electrochemically converts carbon dioxide to one or more carbonaceous reaction products via the reaction: CO2+2e−+2H+→carbonaceous reaction products, at overpotentials of 0.9 V or less.