Rahadian Zainul, Fathatul Akrami, Sukardi Yusuf, Alfadhlani Alfadhlani, Hasanudin Hasanudin, Doche Delson, Riso Sari Mandeli, Hasriwan Putra, Jerri Mapanta, Metla Sai Bhavani Sravan, Azril Azril, Abel Adekanmi Adeyi
Manganese oxides have emerged as a focal point of extensive research due to their multifaceted roles in various scientific domains. This comprehensive review article delves into the diverse facets of manganese oxides, spanning from their crucial involvement in environmental geochemistry to their pivotal role in biogeochemical cycling. These minerals exhibit a broad spectrum of redox chemistry, from Mn(II) to Mn(IV) and Mn(VII), allowing them to partake in a variety of catalytic processes. The article explores the impact of pH on the stability and reactivity of different manganese species, illustrating the relevance of these compounds across the acidic to alkaline pH spectrum. Furthermore, it delves into their significance in advanced oxidation processes for water treatment, particularly the potent MnO4–/HSO3– system. The article also unveils the pivotal role of manganese oxides in anion-exchange membrane fuel cells and electrolyzers as alternatives to noble metal catalysts for oxygen reduction and evolution reactions. Lastly, this review underscores the importance of understanding the thermodynamic stability of various manganese species under different conditions. It serves as a valuable resource for researchers and scientists exploring the multifaceted world of manganese oxides and their diverse applications across various scientific disciplines. © 2024 by SPC (Sami Publishing Company).
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Indonesia; Center for Advanced Material Processing, Artificial Intelligence, and Biophysic Informatics (CAMPBIOTICS), Universitas Negeri Padang, Indonesia; Operational Division, PT Putra Perkasa Abadi, Jakarta, Indonesia; Departement of Industrial Engineering, Faculty of Engineering, Universitas Andalas, Kampus Limau Manih, Sumatera Barat, Padang, 25163, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sriwijaya, Indralaya, 30662, Indonesia; Department of Planning & Controlling Production, Unit Of Production Support, Section OF Aternative Fuel & Raw Material, PT Semen, West Sumatera, Padang, Indonesia; Environmental Science, Postgraduate Programme, Universitas Negeri Padang, West Sumatera, Padang, Indonesia; Research Center for Transportation Technology, National Research And Innovation Agency (BRIN), Indonesia; Mining & Infrastructure Department, PT Bara Blasting Perkasa, Jakarta, Indonesia; Department of Biomedical Engineering, National Cheng Kung University, 1 University Road, Tainan City, 70101, Taiwan; Department of Biomedical Engineering, National Cheng Kung University, Tainan City, Taiwan; Department of Chemical and Petroleum Engineering, Afe Babalola University Ado-Ekiti (ABUAD), Ekiti State, Nigeria
