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One-Pot Synthesis of Manganese Oxide Nanosheets in Aqueous Solution: Chelation-Mediated Parallel Control of Reaction and Morphology


  • This work was supported by the 21st Century COE program “KEIO Life Conjugated Chemistry” from the Ministry of Education, Culture, Sports, Science, and Technology, Japan, and Murata Science Foundation. Y.O. is grateful for a JSPS research fellowship for young scientists.


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Sheet materials: Manganese oxide nanosheets and their oriented thin films can be prepared by a bottom-up approach in aqueous solution under ambient conditions (left). Chelation between the manganese species and ethylenediaminetetraacetate (EDTA) ligands results in birnessite-type nanosheets (see micrographs and diffraction pattern). The biomimetic pathway allows simultaneous control of synthesis and morphogenesis by the EDTA chelating agent.