Guillermo Díaz defended his doctorate thesis “Electrochemical CO₂ utilization: Development of a continuous process for obtaining formate with high efficiency”, developed in the Chemical & Biomolecular Engineering Department of the University of Cantabria, under the supervision of Prof. Ángel Irabien and Dr. Manuel Álvarez. The academic event took place on May 31^st, 2021, and the evaluation committee was formed by Prof. Inmaculada Ortiz (University of Cantabria), Dr. Jose Solla (University of Alicante) and Dr. Carlos Sánchez (Sorbonne University).