title: Tuning the shape and catalytic activity of Fe nanocrystals from rhombic dodecahedra and tetragonal bipyramids to cubes by electrochemistry.
abstract: 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.
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
authors.forename: Yan-Xin
authors.initials: YX
authors.lastname: Chen
authors.forename: Sheng-Pei
authors.initials: SP
authors.lastname: Chen
authors.forename: Zhi-You
authors.initials: ZY
authors.lastname: Zhou
authors.forename: Na
authors.initials: N
authors.lastname: Tian
authors.forename: Yan-Xia
authors.initials: YX
authors.lastname: Jiang
authors.forename: Shi-Gang
authors.initials: SG
authors.lastname: Sun
authors.forename: Yong
authors.initials: Y
authors.lastname: Ding
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang