Cover: The year 2019 marks the 70th anniversary of the Dalian Institute of Chemical Physics,Chinese Academy of Sciences (abbreviated as DICP).Since its foundation,DICP has been at the forefront of fundamental and applied sciences and technologies that closely response the scientific and economic demands of China.After the efforts of several generations,DICP has gained a high reputation in chemistry research,covering from fundamental studies,technology development to industrial applications.Especially,DICP has made great contributions in the field of catalysis.To celebrate the 70th anniversary,the journal publishes this special issue.Internationally renowned catalysis scientists were kindly invited to make contributions.The speical issue contains 23 papers,including 2 Editorials,3 Reviews,1 Communication,and 17 research Articles that cover aspects of both fundamental studies and industrial applications.