Low cost carbon dioxide sensors

摘要: Electrochemical sensors for measuring an amount or concentration of CO2, typically using catalysts that include at least one catalytically active element and helper catalyst, are disclosed. The may be used to increase the rate, modify selectivity lower overpotential chemical reactions. These useful a variety reactions including, in particular, electrochemical conversion CO2. Chemical processes devices also disclosed, including produce CO, OH-, HCO-, H2CO, (HCO2)-, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO, CH3COOH, C2H6, O2, H2, (COOH)2, (COO-)2.