Low-Temperature Green Synthesis of Multivalent Manganese Oxide Nanowires

TitleLow-Temperature Green Synthesis of Multivalent Manganese Oxide Nanowires
Publication TypeJournal Article
Year of Publication2013
AuthorsVeeramani, H, Aruguete, DM, Monsegue, N, Murayama, M, Dippon, U, Kappler, A, Hochella, MF
JournalACS Sustainable Chemistry & Engineering
Pagination1070 - 1074
Date Published09/2013

Manganese oxide nanomaterials hold promise for sustainable nanotechnologies given their utility for a variety of applications, the Earth’s abundance of manganese, and their low toxicity relative to other nanomaterials. However green scalable synthesis methods for such nanomaterials are needed. We report here a green room-temperature synthesis of polycrystalline Mn3O4 nanowires. In this procedure, aqueous Mn(II) is oxidized under circumneutral conditions by atmospheric oxygen in the presence of nanocrystalline iron oxide (α-Fe2O3), an inexpensive catalyst, and a classic biochemical Good’s buffer, PIPES (piperazine-N,NI-bis(2-ethanesulfonic acid). The synthesis method is novel due to its simplicity, minimal energy input and waste output, and potential scalability. The Mn3O4 nanowires have been characterized with a suite of electron microscopy techniques.

Short TitleACS Sustainable Chem. Eng.