FIELD: manufacturing of multilayered electrodes.
SUBSTANCE: method includes coating the base from valve metal, in at least two alternate cycles of solution that contains precursor of at least one precious metal or its oxide and solution that contains precursor of at least one oxide of non-precious transition metal with intermediate thermal treatment between the coatings and final thermal treatment at 300-700°C. Proportion between the non-precious transition metal and precious metal is determined as certain and different in the mentioned layers. At that the proportion between the non-precious transition metal and precious metal is higher in external protective layer than in intermediate activation layer. Anode is produced by specified method from solutions that contain tantalum, iridium; tin, antimony and/or copper in different proportions. The cell for application of galvanic coatings from metal and for treatment of sewage contains electrolyte bath and above mentioned anode.
EFFECT: increases operating life of anode and electrode for extraction of gas.
16 cl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ANODE FOR OXYGEN RELEASE | 2005 |
|
RU2388850C2 |
| HIGH-EFFICIENCY ANODE COATING FOR PRODUCING HYPOCHLORITE | 2005 |
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| ELECTROLYSIS METHOD FOR WATER CHLORIC-ALKALINE SOLUTIONS, ELECTRODE FOR ELECTROLYSIS OF CHLORIC-ALKALINE SOLUTION AND METHOD OF MAKING AN ELECTROLYTIC ELECTRODE | 2003 |
|
RU2330124C2 |
| METHOD OF FABRICATION OF ELECTRODE FOR ELECTROLYSIS OF WATER SOLUTIONS OF ALKALI METAL CHLORIDES | 2008 |
|
RU2383660C1 |
| METHOD TO PRODUCE ELECTRODE, ELECTRODE (VERSIONS) AND ELECTROLYTIC CELL (VERSIONS) | 2004 |
|
RU2425176C2 |
| ANODE FOR ELECTROLYTIC CHLORINE RECOVERY | 2019 |
|
RU2791363C2 |
| ELECTRODE FOR ELECTROLYTIC GAS EXTRACTION | 2019 |
|
RU2789597C2 |
| ELECTRODE FOR ELECTROCHEMICAL PROCESS AND METHOD OF ITS RECEIVING | 2004 |
|
RU2355823C2 |
| ELECTRODE | 2008 |
|
RU2487197C2 |
| CATALYTIC COATING AND METHOD OF ITS PRODUCTION | 2015 |
|
RU2689985C2 |
