D 2017

Electrochemical and electrophoretic deposition of materials obtained by anodic dissolution of metals in water

HRBÁČ, Jan, Jan ROZSYPAL, Daniel RIMAN, Vladimír HALOUZKA, Dušan HEMZAL et. al.

Basic information

Original name

Electrochemical and electrophoretic deposition of materials obtained by anodic dissolution of metals in water

Authors

HRBÁČ, Jan, Jan ROZSYPAL, Daniel RIMAN, Vladimír HALOUZKA, Dušan HEMZAL and Vít PAVELKA

Edition

1. vyd. Brno, XVII. Workshop of Physical Chemists and Electrochemists, p. 16-16, 1 pp. 2017

Publisher

Masarykova univerzita

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10403 Physical chemistry

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

electronic version available online

Organization unit

Faculty of Science

ISBN

978-80-210-8580-0

Keywords in English

electrophoretic deposition; metals; SERS; EDX; carbon fiber microelectrodes

Tags

Změněno: 17/5/2018 14:04, Ing. Nicole Zrilić

Abstract

V originále

Electrochemical dissolution of metal anodes in unsupported medium such as water generates metal oxide/hydroxide material which can be deposited onto a suitable substrate connected as a cathode in the electrochemical cell. Depending on the properties of anode-derived material (zeta potential and solubility), metal electroreduction or electrophoretic deposition of anode-derived material can be achieved. Nanostructured deposits can be applied as amperometric and SERS sensors. In the previous works1-3, we showed that anodization of silver and copper in ultrapure water leads to Ag+ resp. Cu2+ cations, reacting with OH- ions available from the autoprotolysis of water to give corresponding hydroxides, eventually transformed by further hydrolytic reactions. This anode-derived material is transported in the interelectrode space by electrophoretic, diffusion and convection induced by density or temperature gradients. After reaching the surface of the counterelectrode (cathode), a deposit is formed. Recently, the above described strategy was used also to deposit nickel and copper-copper nickel alloy onto carbon fiber microelectrodes. In the case of silver and copper the procedure leads to elemental silver resp. copper while material obtained from nickel and copper-nickel alloy is of oxidic nature, as suggested by EDX.

Links

LD15058, research and development project
Name: Příprava substrátů pro povrchově zesílenou Ramanovu spektroskopii pomocí elektrochemických, elektroforetických a jiskrový výboj využívajících technik. (Acronym: ELE-SERS)
Investor: Ministry of Education, Youth and Sports of the CR