Walter Leitner (born 1 February 1963 in Pfarrkirchen, Germany) is a German chemist, the director of the Max Planck Institute for Chemical Energy Conversion (MPI CEC) heading the department "Molecular Catalysis" as well as a university lecturer at the RWTH Aachen University, where he holds the position of chair for technical chemistry and petrochemistry. Career Leitner studied at the University of Regensburg from 1982 to 1987 and received his doctorate in 1989 from the Institute of Inorganic Chemistry with a thesis on enantioselective catalytic transfer hydrogenation of formates. In 1990, he completed a postdoctoral stint in the working group of John Michael Brown at the Dyson Perrins Laboratory for Organic Chemistry at the University of Oxford. In 1991 and 1992 Leitner worked as a Liebig Fellow of the Fund of the Chemical Industry at the Inorganic-Chemical Institute of the University of Regensburg. After three years of work (1992–1995) at the CO2 Chemistry Working Group of the Max Planck Society (head: E. Dinjus) at the Friedrich Schiller University of Jena, he habilitated in the field of Inorganic Chemistry and was appointed private lecturer. He moved to the Max Planck Institute for Coal Research in Mülheim as head of the working group in the field of organic synthesis, where he took over the technical management at the beginning of 1998. From 2002 he has been the Chair of Technical Chemistry and Petroleum Chemistry, as the successor to Wilhelm Keim at the RWTH Aachen University. From September 2007, Leitner established the catalysis center "CAT" together with Bayer Material Science AG (now called Covestro AG) and Bayer Technology Services at RWTH Aachen University, of which he has been scientific director ever since. From 2004 to 2016, he was the scientific editor and then the chair of the editorial board of the journal Green Chemistry, published by the Royal Society of Chemistry. During his engagement with DECHEMA, Leitner was on the board of the newly founded specialist section "Advanced Fluids" in 2007 and on the first board of the German Society for Catalysis (GeCatS) in 2008. On 1 October 2017, Leitner was appointed Director of the Max Planck Institute for Chemical Energy Conversion (MPI CEC) where he was appointed scientific director of the "Molecular Catalysis" Department. Leitner will continue his chair at RWTH for an initial period of five years as part-time professorship. Research areas Leitner's scientific work focuses on the development of catalysts and