Catalysts (ISSN 2073-4344, IF 4.146) is a peer-reviewed open access journal of catalysts and catalyzed reactions published monthly online by MDPI. The Swiss Chemical Society (SCS) is a partner of Catalysts journal and its members receive a discount on the article processing charge. Open Access - free for readers, with article processing charges (APC) paid by authors or their institutions. High Visibility: indexed by the Science Citation Index Expanded (Web of Science), Scopus and other databases. Rapid Publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 11.7 days after submission; acceptance to publication is undertaken in 2.9 days (median values for papers published in this journal in the second half of 2019). Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done. Impact Factor: 4.146 (2020) ; 5-Year Impact Factor: 4.399 (2020) Twitter: https://twitter.com/Catalysts_MDPI