FIELD: physics.
SUBSTANCE: invention relates to gas-diffusion structures, such as gas-diffusion electrodes and substrates of gas-diffusion electrodes, and to methods of making them. According to the invention, the gas-diffusion structure contains a multilayer coating on a fabric. The coating is provided with a thin gradient of porosity and hydrophobicity on the entire thickness and contains separate layers, containing carbon and particles of binding substance. The carbon particles contain at least one more hydrophobic carbon and one more hydrophilic carbon. The said thin gradients are obtained by laying separate layers with different weight ratio between the said more hydrophobic carbon and the said more hydrophilic carbon.
EFFECT: efficient transfer of gas, removal of water and improved general characteristics of membrane electrode structures.
20 cl, 12 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| STRUCTURES FOR GAS DIFFUSION ELECTRODES | 2007 |
|
RU2414772C2 |
| METHOD OF MANUFACTURING OF MEMBRANE-ELECTRODE UNIT WITH BIFUNCTIONAL ELECTROCATALYTIC LAYERS | 2009 |
|
RU2392698C1 |
| GAS-DIFFUSION ELECTRODES, MEMBRANE-ELECTRODE ASSEMBLIES AND METHOD OF THEIR MANUFACTURING | 2005 |
|
RU2370859C2 |
| UPGRADED RHODIUM ELECTROCATALYST AND THE METHOD OF ITS PRODUCTION | 2002 |
|
RU2311496C2 |
| METAL SULPHIDE CATALYST ON CARBON SUPPORT FOR ELECTROCHEMICAL REDUCTION WITH OXYGEN | 2007 |
|
RU2419687C2 |
| RHODIUM ELECTROCATALITIC AGENT AND A METHOD OF ITS PREPARATION | 2000 |
|
RU2230136C2 |
| NEW ELECTROCATALYTIC COMPOSITION FOR CATHODE WITH OXYGEN DEPOLARIZATION | 2002 |
|
RU2280714C2 |
| ELECTROLYSIS CELL WITH GAS DIFFUSION ELECTRODE | 2002 |
|
RU2303085C2 |
| GAS-DIFFUSION ELECTRODE FOR ELECTROLYTE-PERCOLATING CELLS | 2007 |
|
RU2423555C2 |
| OXYGEN RECOVERING CATALYST | 2004 |
|
RU2350383C2 |
