Transactions of Tianjin University is a peer-reviewed, interdisciplinary journal that publishes frontier achievements in the research fields of energy generation, storage and application that concerned by nations and society. Transactions of Tianjin University publishes a full mix of research article types, including Letters, Articles, Perspectives, Reviews, and Viewpoints. The scope of the journal is broad, topics published include but not limits to: • Solar energy utilization • Hydrogen production and storage • CO2 capture and conversion • Fuel cells • Batteries and supercapacitors • Catalysis • Clean utilization of coal and oil • Biofuels • Energy policy