Electrocatalysts participate in electrochemical reactions as the electrodes, or the catalytic materials coated on the surface of electrodes. Platinum is the most used electrode material in electrochemical devices because of its catalytic activity. However, its limited abundance and high costs are hurdles that impede the advancement of certain vital electrochemical applications. In this section, we further analyze of non-noble metal electrocatalysts data related to sustainability, which was retrieved from our primary search query data using a more narrow electrocatalyst specific search query (See SI for more details).