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Up to seventy percent of all chemical products are associated with the base chemicals chlorine and sodium hydroxide solution. Accordingly, sodium chloride electrolysis is of enormous industrial significance, but current processes are highly energy-intensive and produce major emissions. A new process involving oxygen depolarized cathode (ODC) technology has been under investigation for a few years and has the potential to save 30-50% of the previously required energy, which would also drastically reduce the associated CO2 emissions. However, this process is not yet ready for marketing due to the associated cost. Further technological breakthroughs will be required, particularly for highly active catalysts and for manufacturing ODC, to substantially increase the efficiency of the process while reducing investment and operating costs. The CarboElCh project pursues a promising approach involving highly active nitrogen-doped CNT for a decisive innovative leap.