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Membrane Properties and Characterization for Zero-Gap CO2 Electrolyzers
Zero-gap electrolyzers are similar to fuel cells in design because the heart of the electrolyzer consists of two electrodes pressed against a membrane. These electrolyzers are called “zero-gap” because there is no gap between the cathodes, anodes, and the electrolyte. This design decreases the distance for ion transport because the layers are pressed or bonded together. The zero-gap CO2 electrolyzers can achieve high current densities (≥100 mA/cm2) by delivering gaseous CO2 to the cathode. The efficiency of these electrolyzers depends upon the catalysts used, the operating conditions, and o..
Carbon Dioxide Capture and Conversion
An Introduction to CO2 Capture and Conversion Electrochemical devices that convert CO2 into fuels and valuable compounds have been undergoing extensive research for over a decade now. The research in this area has been driven by the desire to reduce reliance on fossil fuels and reduce greenhouse emissions. As you are probably aware, the majority of the world’s energy used for transportation, industrial, and residential uses are made from coal, petroleum, and natural gas. An Increase in CO2 Emissions As we are all aware, the consumption of fossil fuels has led to an increase in C..
Characteristics and Safety of Hydrogen

Hydrogen has many unusual characteristics compared with other elements. Some of these interesting and unusual characteristics include...Table 1 compares relevant properties of hydrogen, methane, methanol, ethanol, propane, and gasoline—all of which can be used as fuel for fuel cells.