Professor Castaño's group (Multiscale Reaction Engineering – MuRE) engineers advanced catalytic reaction systems that harness the power of surfaces, pores, heat, microorganisms, electrons, and photons to accelerate and make more efficient chemical transformations. Our research integrates experimental and computational methods to advance catalytic reaction engineering at multiple scales, from molecular interactions to reactor-scale processes. These processes address the energy transition and sustainability challenges: decarbonization, circularity, process intensification, hydrogen, waste valorization, pollutant removal, among others.