Pedro Freitas Mendes was appointed Open Science domain ambassador for Catalysis by the Research Data Alliance (RDA) and the European Open Science Cloud (EOSC). RDA is public-funded worldwide organization enabling open sharing and re-use of data. EOSC is an European-funded initiative aiming to provide tools for researchers to publish, find and re-use data. The main goal of Pedro’s 2-year mandate is to make data sharing a community practice through training and catalysis-specific guidelines.