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. 2008;20(13):2517-2522.
doi: 10.1002/adma.200800255.

A Comparative Study of Galvanic Replacement Reactions Involving Ag Nanocubes and AuCl(2) or AuCl(4)

Leslie Au  1 , Xianmao Lu, Younan Xia
Affiliations

A Comparative Study of Galvanic Replacement Reactions Involving Ag Nanocubes and AuCl(2) or AuCl(4)

Leslie Au et al. Adv Mater. 2008.
No abstract available

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Figures

Figure 1
Figure 1
SEM and TEM (insets) images showing four different stages involved in the galvanic replacement reaction, in which Ag nanocubes were titrated with A) 1.0, B) 3.0, C) 5.0, and D) 10.0 mL of 0.1 mm AuCl2−; and E) 0.3, F) 1.0, G) 1.6, and H) 3.3 mL of 0.1 mm AuCl4−. The scale bar in the inset in (A) represents 50 nm and applies to all TEM images.
Figure 2
Figure 2
Schematic detailing the major differences in terms of morphological and structural changes during the galvanic replacement reaction involving Ag nanocubes with A) AuCl2− and B) AuCl4− in an aqueous medium. The cross-sectional view corresponds to the plane along the dashed lines.
Figure 3
Figure 3
UV-vis spectra of the samples obtained by titrating Ag nanocubes with different volumes of 0.1 mm solution of A) AuCl2− and B) AuCl4−. C) Plot of the peak position versus the volume of gold precursor, suggesting that AuCl2− has a smaller shift (as seen by the more gradual ■OK?■ slope increase) compared to AuCl4− for the same volume of gold precursor added to the reaction solution.
Figure 4
Figure 4
SEM and TEM (insets) images showing samples obtained in the later stages of the galvanic replacement reaction where Ag nanocubes were reacted with A) 12.5 mL, B) 15.0 mL, and (C) 22.0 mL of 0.1 mM AuCl2−. The scale bar in the inset in (A) represents 50 nm and applies to all TEM images. The corresponding UV-vis spectra of the products are shown in (D).
See this image and copyright information in PMC

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References

    1. Chen J, Wiley B, McLellan J, Xiong Y, Li Z-Y, Xia Y. Nano Lett. 2005;5:2058. - PubMed
    2. Lu X, Chen J, Skrabalak SE, Xia Y. P. I. Mech. Eng. N-J. Nanoeng. Nanosys. 2007;221 in press ■Update? Please specify journal name.■.
    3. Cobley CM, Campbell DJ, Xia Y. Adv. Mater. 2008;20:748. - PMC - PubMed
    1. Lu X, Au L, McLellan J, Li Z-Y, Marquez H, Xia Y. Nano Lett. 2007;7:1764. - PMC - PubMed
    1. Portney NG, Ozkan M. Anal. Bioanal. Chem. 2006;384:620. - PubMed
    1. Chen J, Saeki F, Wiley BJ, Cang H, Cobb MJ, Li Z-Y, Au L, Zhang H, Kimmey MB, Li X, Xia Y. Nano Lett. 2005;5:473. - PubMed
    2. Chen J, Wiley BJ, Li Z-Y, Campbell D, Saeki F, Cang H, Au L, Lee J, Li X, Xia Y. Adv. Mater. 2005;17:2255.
    3. Cang H, Sun T, Li Z-Y, Chen J, Wiley BJ, Xia Y, Li X. Opt. Lett. 2005;30:3048. - PubMed
    1. Loo C, Lin A, Hirsch L, Lee MH, Barton J, Halas N, West J, Drezek R. Technol. Cancer Res. Treat. 2004;3:33. - PubMed
    2. Chen J, Wang D, Xi J, Au L, Siekkinen A, Warsen A, Li Z-Y, Zhang H, Xia Y, Li X. Nano Lett. 2007;7:1318. - PMC - PubMed
    3. Hirsch LR, Gobin AM, Lowery AR, Tam F, Drezek RA, Halas NJ, West JL. Ann. Biomed. Eng. 2006;34:15. - PubMed

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