AI Article Synopsis
- - A new method enables the synthesis of hematite particles using xonotlite nanowires (XNWs) as growth modifiers, which significantly influence the material's morphology.
- - The size of hematite particles can be controlled by adjusting the concentration of iron(III) ions, while the XNW concentration affects the shape and structure.
- - The resulting hematite exhibits excellent catalytic performance for oxygen evolution reactions (OER), showing promise for future applications in creating functional materials with complex structures.
Article Abstract
Bio-inspired synthesis of functional materials with highly ordered structure and tunable properties is of particular interest, but efficient approaches that allow the access of these materials are still limited. A method has been developed for the preparation of hematite particles by using xonotlite nanowires (XNWs) as growth modifiers. The concentration of the XNWs has a profound effect on the final morphology of the products, whereas the concentration of the iron(III) ions can control the size of the hematite particles. The underlying mechanism of the bio-inspired XNW-modified mineralization process has been proposed. The obtained hematite particles exhibit good catalytic performance in the oxygen evolution reaction (OER), affording a current density of 10 mA cm with an overpotential of 370 mV, a small Tafel slope of 65 mV dec , and good stability in alkaline electrolyte. This strategy for preparing functional materials by using nanowires as the growth modifiers has great potential for future application in the construction of various materials with hierarchical structures.
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| http://dx.doi.org/10.1002/cssc.201900861 | DOI Listing |
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