Skip to main content
Article thumbnail
Location of Repository

Determination of the effective thickness of a porous electrode in a flow-through reactor; effect of the specific surface area of stainless steel fibres, used as a porous cathode during the deposition of Ag(I) ions.

By J.L. Nava, M.T. Oropeza, C. Ponce de León, J. González-García and A.J. Frías-Ferrer

Abstract

This study discusses the use of potential distribution analysis during the deposition of metal ions, at limiting current conditions and determines the optimum electrode thickness at which no hydrogen evolution occurs. The potential distribution studies were carried out on stainless-steel fibres of three different surface areas. The fibres were used as cathodic porous electrodes during the deposition of Ag(I) ions contained in 0.1 mol dm? 3 KNO3 and 0.6 mol dm? 3 NH4OH electrolyte. The comparison between the experimental and the theoretical potential distributions show good agreement at mean linear flow rates in the range of 0.24 and 0.94 cm s? 1

Topics: TP, QD
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:54627
Provided by: e-Prints Soton

Suggested articles

Citations

  1. (1977). A flow through porous electrode model: application to metal ion removal from dilute streams. doi
  2. (1996). An improved model of potential and current distribution within a flow-through porous electrode. doi
  3. (1995). Characterization of a flow-by RVC electrode reactor for the removal of heavy metals from dilute solutions. doi
  4. (1971). Distribution of potential in a porous electrode under conditions of flow electrolysis. doi
  5. (1999). Electrochemical removal of lead ions from flowing electrolytes using packed bed electrodes. doi
  6. (1972). Electrochemical removalof copper ions from very dilute solutions. doi
  7. (1986). Experimental investigation of a porous carbon electrodefortheremovalofmercuryfromcontaminatedbrine.J.Electrochem.
  8. (1989). Flow-through and flow-by porous electrodes of nickel foam. II. Diffusion-convective mass transfer between the electrolyte and the foam. doi
  9. (1991). Internal ohmic drop limits on effectiveness of packed bed electrodes obeying Tafel kinetics. doi
  10. (2003). Mass transfer behaviour of a flow-by fixed bed electrochemical reactor under different hydrodynamic conditions. doi
  11. (1990). Mass transfer to a carbon or graphite felt electrode. doi
  12. (2004). On the effectiveness factor of flow-through porous electrode. doi
  13. (1982). Optimal design of packed bed cells for high conversion. doi
  14. (1985). Principles of Electrochemical Reactors Analysis. doi
  15. (2000). Renoval of Zn(II) from chloride médium using a porous electrode: current penetration withing the cathode.
  16. (1977). The modelling of concentration-time relationships in recirculating electrochemical reactor systems. doi
  17. (1996). The removal of Pb(II) from aqueous solutions using a reticulated vitreous carbon cathode cell—the influence of the electrolyte medium. doi
  18. (1962). Theoretical analysis of current distribution in porous electrodes. doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.