Activated carbon silver deposition

Peng, Y. and Q. Chen, Fabrication of copper/multi-walled carbon nanotube hybrid nanowires using electroless copper deposition activated with silver nitrate. Journal of The Electrochemical Society, 2012.159(2) p. D72-D76. 

Isse, A.A., Gottardello, S., Maccato, C. and Gennaro A. (2006b) Silver nanoparticles deposited on glassy carbon. Electrocatalytic activity for reduction of benzyl chloride. Electrochem. Commun. 8, 1707-1712. 

Tsai YC, Hsu PC, Lin YW, Wu TM (2009) Electrochemical deposition of silver nanoparticles in multiwalled carbon nanotube-alumma-coated silica for surface-enhanced Raman scattering-active substrates. Electrochem Commun 11 542-545... 

The XPS results presented in Table 16 confirm the adsorption/desorption data (silver ions on carbon) as well as the electrochemical deposition/dissolution (silver on the electrodes) proposal. The smallest amount of adsorbed metallic silver (in lattice form) and the highest quantity of ionic silver on the oxidized carbon surface confirms the partial ion-exchange nature of the adsorption process for this material. Moreover, the highest number of i.solated silver atoms on this carbon (r.p.a. = 20%) shows that the reduction of metal ions took place after sorption on surface functional groups. The ionic and isolated atomic forms of adsorbed silver exhibit electrochemical activity (see Figs. 48 and 51) and can be eluted with dilute nitric acid (.see Table 14). The relatively high participation of metallic... 

Modification (i.e. decoration) of graphite surfaces also results in considerable enhancement of vibrational bands of the carbon substrate in addition, modes of electrolyte solution constituents may be observed. In the case of a glassy carbon surface that is electrochemically activated by repeated electrode potential, cycling deposition of silver micro- and nanocrystals results in SER spectra, as shown in Fig. 5.78. 

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