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Tuning the shape and catalytic activity of Fe nanocrystals from rhombic dodecahedra and tetragonal bipyramids to cubes by electrochemistry

Journal of the American Chemical Society, ISSN: 0002-7863, Vol: 131, Issue: 31, Page: 10860-10862
2009
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Article Description

(Figure Presented) Fe nanocrystal catalysts were synthesized by electrochemistry. Shape transformations of Fe nanocrystals from rhombic dodecahedra and tetragonal bipyramids, both bounded by {110} facets, to 18-facet polyhedra enclosed by different combinations of {110} and {100} facets and finally to cubes exclusively covered by {100} facets have been achieved. A study of the surface-structure functionality of the Fe nanocrystals toward electroreduction of nitrite revealed that the electrocatalytic activity of the Fe nanocrystals increases as the fraction of {100} facets on the surface of the Fe NCs increases. © 2009 American Chemical Society.

Bibliographic Details

Chen, Yan-Xin; Chen, Sheng-Pei; Zhou, Zhi-You; Tian, Na; Jiang, Yan-Xia; Sun, Shi-Gang; Ding, Yong; Wang, Zhong Lin

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Biochemistry, Genetics and Molecular Biology

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