As previously mentioned, the CAS Content Collection TM was used to retrieve information regarding the use and application of non-noble metal catalysts / catalysis from the documents published 2012 onwards, resulting in around 50,000 publications (51,286 journals and 5978 patents). In general, the publication trend of non-noble metal catalysts/catalysis manifests a steady growth, and the journal articles dominate the publication volume (82%) between 2012 and 2024 (Figure ). When it comes to journal publications, the countries with the highest number of publications in descending order are China, United States, India, Germany, and South Korea (Figure ). The countries with the greatest number of patent publications are China, the United States, Japan, South Korea, and Germany. (Figure ). We further separated the institutions with the highest number of patents into commercial and non-commercial categories (Figure ). In the commercial category, BASF SE has the highest number of patents, mostly reporting new inventions for the catalytic synthesis of chemicals. Institutions belonging to China Petroleum and Chemical Corporation (SINOPEC) has the next highest number of patents in commercial category. Codexis Inc which develops enzymes has patented biocatalysts for various synthetic applications related to pharmaceutical, food, medical applications. 26 In this report, we focus on looking into bibliometric data on sustainable chemistry using nonnoble metal catalysts in four research fields: electrocatalysts, photocatalysts, homogeneous catalysts, and biocatalysts. Data regarding these subfields was obtained by further narrowing the original search query (See SI for more details). Figure shows the number of publications in the selected fields, where electrocatalyst-related publications are highest followed by biocatalysts, homogeneous catalysts and photocatalysts. Numbers of patents published were similar for biocatalysts, electrocatalysis and homogeneous catalysts, whereas relatively lesser patents were published using photocatalysts. We provide analysis of the developments and publications in these subfields in the sections that follow. We investigated the general trends among the catalysts substance to get a broader view. Figure illustrates the number of publications in the various substance classes to which the catalysts belong to in journals(left) and patents(right). Elements and organic/inorganic small molecules are the biggest class of catalysts. This is followed by complex and unknown substances (called as 'manual registration' in CAS substance classes) which can be defined as: substances without known compositions like commercial catalysts; substances with known but large/complex structures such as enzymes. The fourth biggest category of catalysts are the 'tabular inorganic', which are inorganic substances which are mixtures of compounds such as mixed or doped metal oxides, and sulfides. The chart also shows the further distribution of the catalyst substance classes to the major types of catalysts. The obvious trends are the high contribution of elements, small molecules, and enzymes to the electrocatalysts, homogeneous catalysts, and biocatalysts respectively.