As an economical, safe and renewable carbon source, CO2 is an attractive C1 building block for making organic chemicals, materials and carbohydrates. The CO2 conversion for producing chemicals not only contributes to mitigating global climate changes caused by increasing CO2 emissions, but also provides a grand opportunity in exploring new concepts and processes for catalytic and industrial development. Unfortunately CO2 is not extensively used as a source of carbon in industrial practices, due largely to the thermodynamic stability of CO2. ­In most cases of those reported CO2 conversion technologies, the process energy is extremely intensive, and leads to more CO2 emissions in fact. At Idaho National Laboratory, we report our finding on CO2 conversion using an electrochemical proton conducting membrane reactor using steam or natural gas as hydrogen feedstock, to produce high value added chemicals. Technically we demonstrate a promising pathway toward sustainable CO₂ conversion, and to guide selective catalyst discovery. Our mission is to leverage the heat and electricity from nuclear energy for integrated energy systems and to engage in the INL’s energy to molecule (E2M) initiative.