期刊
NANOSCALE
卷 8, 期 4, 页码 2333-2342出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr07193c
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资金
- National Natural Science Foundation of China [11079036, 21476232]
- Chinese Academy of Sciences Visiting Professorships for Senior International Scientists [2011T1G15, 2013T2G0009]
- China-Egypt Scientific Exchange Project of National Natural Science Foundation of China
- Academy of Scientific Research and Technology of Egypt [21311140474]
- European Research Council [ERC-StG-259709]
- 'Lendulet' (Momentum) Program of the Hungarian Academy of Sciences
The morphologically and compositionally controlled synthesis of coordination polymers and spinel oxides is highly desirable for realizing new advanced nanomaterial functionalities. Here we develop a novel and scalable strategy, containing a copolymer-co-morphology conception, to shape-controlled synthesis of various types of Prussian blue analogues (PBAs). Three series of PBAs MyFe1-y[Co(CN)(6)](0.67)center dot nH(2)O (MyFe1-y-Co, M = Co, Mn and Zn) with well-controlled morphology have been successfully prepared through this strategy. Using MnyFe1-y-Co PBAs as the model, by increasing the relative content of Mn, flexible modulation of the morphology could be easily realized. In addition, a series of porous MnxFe1.8-xCo1.2O4 nano-dices with well-inherited morphologies and defined cation distribution could be obtained through a simple thermal treatment of the PBAs. All these results demonstrate the good universality of this novel strategy. When evaluated as an electrocatalyst, the octahedral-site Mn-III/Mn-IV content in MnxFe1.8-xCo1.2O4, mainly determined by sensitive Fe-57 Mossbauer in combination with X-ray photoelectron spectroscopic techniques, was discovered to be directly correlated with the oxygen reduction/evolution reaction (ORR/OER) activity.
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