Fig. 2: Agglomeration of Ru NPs into erect nanoarrays on desired substrates.
From: Synthesis of noble metal nanoarrays via agglomeration and metallurgy for acidic water electrolysis

A Schematic illustration for the fabrication of Ru NPs-nanoarray on carbon cloth. B Dependence of mass loading of Ru NPs on the immersion cycles. The inset photos show the color change of the solution of Ru NPs upon placing a piece of micellar brush-decorated carbon cloth. C, D SEM images of the Ru NPs-nanoarray on carbon cloth. The insets show a photo of a piece of carbon cloth covered by the Ru NPs-nanoarray and a TEM image of a nanowire of the nanoarray constituted by tightly stacked Ru NPs. E Schematic illustration of the electron conducting path in the Ru NPs-nanoarray along the longitudinal direction. F Electron conduction measurements of Ru NPs-nanoarray obtained at different concentrations of acetate. The inset shows a cross-section SEM image of the Ru NPs-nanoarray on a conductive titanium sheet.