Presentation Title

Formate: an Energy Storage and Transport Bridge Between Carbon Dioxide and a Formate Fuel Cell in a Single Device

Faculty Mentor

John L. Haan

Start Date

17-11-2018 12:30 PM

End Date

17-11-2018 2:30 PM

Location

CREVELING 10

Session

POSTER 2

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

The recent increase in atmospheric carbon dioxide is concerning due to its impact on global climate. However, state of the art alternative energy has limited availability, while storage and transport of electrical energy is challenging. One solution to these challenges is to store electrical energy in liquid fuels for on-demand conversion to energy. Formate is a promising liquid for energy storage because its conversion from carbon dioxide only requires reduction without the formation of a carbon-carbon bond; this is possible through electrochemical reduction on metals such as Sn. We created a device that will electrochemically reduce carbonate to formate on a Sn metal surface and will also store the fuel. Sodium carbonate was reduced to sodium formate with a tin electrode in a three electrode cell and a two electrode cell using a potentiostat to maintain potential control. The potential used to reduce carbonate to formate was at -2.5 V, and after 30 minutes, 0.1 M formate was produced. We then transitioned to the electrolysis and fuel cell device so that formate is regenerated using solar power.

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Nov 17th, 12:30 PM Nov 17th, 2:30 PM

Formate: an Energy Storage and Transport Bridge Between Carbon Dioxide and a Formate Fuel Cell in a Single Device

CREVELING 10

The recent increase in atmospheric carbon dioxide is concerning due to its impact on global climate. However, state of the art alternative energy has limited availability, while storage and transport of electrical energy is challenging. One solution to these challenges is to store electrical energy in liquid fuels for on-demand conversion to energy. Formate is a promising liquid for energy storage because its conversion from carbon dioxide only requires reduction without the formation of a carbon-carbon bond; this is possible through electrochemical reduction on metals such as Sn. We created a device that will electrochemically reduce carbonate to formate on a Sn metal surface and will also store the fuel. Sodium carbonate was reduced to sodium formate with a tin electrode in a three electrode cell and a two electrode cell using a potentiostat to maintain potential control. The potential used to reduce carbonate to formate was at -2.5 V, and after 30 minutes, 0.1 M formate was produced. We then transitioned to the electrolysis and fuel cell device so that formate is regenerated using solar power.