Catal is an open-access journal covering the full spectrum of critical catalysis and reaction engineering for energy, environment, health, and other essential engineering and science fields, particularly fostering innovation and sustainability. It integrates fundamentals and applied sciences with a broad scope from conventional heterogeneous catalysis to newly emerging biocatalysts. Catal offers a unique platform for scientific researchers and industry engineers by efficiently documenting significant discoveries and valuable practical experience, increasing their impact and visibility. Catal publishes research article, brief communication, perspective, review, and analysis. Topics include but are not limited to: • Catalytic materials, such as catalysts design and fabrication • Electrocatalysis • Photocatalysis • Thermocatalysis • Environmental catalysis • Biocatalysts, enzymatic and chemoenzymatic catalysis • Nanostructured catalysis • Industrial catalysis • Asymmetric catalysis • Organocatalysis • Catalytic mechanisms • Computational and theoretical catalysis • Fundamental catalysis research, like liquid metal catalysis .