Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1271797 | International Journal of Hydrogen Energy | 2011 | 7 Pages |
A standing Ag nanosheet array was successfully deposited using an electrochemical method. The results demonstrated that the adsorption of polyvinylpyrrolidone (PVP) over the Ag (111) plane during deposition (1) inhibits the crystalline growth in the [111] direction, (2) stacks atomic faults in the fcc structure, and (3) forms a standing Ag nanosheet composed essentially of (111) planes. In an application, this Ag nanosheet array can be successfully used as an oxygen reduction catalyst. Based on Koutecky–Levich equation, the involved electron number at −0.2 V was 3.97.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A standing Ag nanosheet array has been successfully deposited using an electrochemical method. ► PVPs are used as an additive to govern the growth direction on nanosheet. ► This forms a standing Ag nanosheet composed essentially of (111) planes. ► The Ag nanosheet array has been successfully as catalyst for oxygen reduction reaction.