Applied Catalysis B: Environment and Energy warmly welcomes original, innovative, and high-impact contributions within the realm encompassing thermo-, electro-, and photocatalysis to advance clean energy and provide sustainable environmental solutions. We encourage submissions that explore: Fundamental and applied catalysis research, advancing clean energy and sustainable environmental solutions. Catalysis-driven insights fostering the development of sustainable industrial processes, elevating our collective knowledge base. Every facet of catalyst synthesis, characterization, catalytic mechanisms, and strategies for catalyst activation and regeneration, all tailored for environmental and energy applications. Catalytic strategies aimed at abating environmental pollutants, addressing a wide array including nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated organics, and soot, emitted from both stationary and mobile sources. Pioneering catalytic routes and processes facilitating the efficient production and conversion of clean energy, marking a paradigm shift in the landscape energy sourcing. Catalytic reactions adeptly transforming waste materials into valuable and useful products, amplifying the concept of sustainability through resource recycling. The journal welcomes submissions of original Research Papers, Reviews, Perspectives, and Letters to the Editor. Reviews and Perspectives are by invitation only.