Ars.els-cdn.com



Mesoporous CoFe alloy@SiO2 Nanocapsules with Controllable Co/Fe atomic ratio for Highly Efficient Tunable Electromagnetic Wave Absorption Meng Lia, Zhihong Yanga*, Yu zhanga, Dinghua Hub, Xujian LyubaCollege of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. ChinabSchool of Energy and Power Engineering，Nanjing University of Science and Technology, Nanjing 210094, P. R. China*E-mails: rogeryangzhihong@SamplecompositionWeight percentage (%) of SiO2Weight percentage (%) of Iron (Fe)Weight percentage(%) of Cobalt (Co)Ratio ofCo: Fe (ideal)Co0.2Fe2.8@SiO20.5547030.4127810.0325161 : 13.4 (14.0)Co0.4Fe2.6@SiO20.6583310.297120.0445491 : 7.03 (6.5)Co0.6Fe2.4@SiO20.7135970.2314920.0549111 : 4.44 (4.0)Co0.8Fe2.2@SiO20.6229670.279860.0971741 : 3.04 (2.8)CoFe2@SiO20.6960870.2073330.096581 : 2.3 (2.0)Figure S1 (a)-(e) EDS spectrum for as-synthesized CoxFe3-x@SiO2 (x= 0.2, 0.4, 0.6, 0.8, 1) nanocapsules and atomic ratio of cobalt to iron in the CoxFe3-x@SiO2 (x= 0.2, 0.4, 0.6, 0.8, 1) nanocapsules.Figure S2 Nitrogen adsorption-desorption isotherms and pore size distribution curves of CoxFe3-xO4 nanocapsules (x= 1 (a), 0.8(b), 0.6 (c), 0.4 (d), 0.2 (e)). ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download