FIELD: chemistry.
SUBSTANCE: group of inventions relates to production of electrodes for electrolytic obtaining of hydrogen from water alkaline and acidic solutions. Method of obtaining nanocrystalline composite material of cathode includes carrying out mechanical activation of mixture of iron and graphite powders in atom ratio 75:25 in argon medium for 15÷20 h with obtaining powder mixture from nano-sized grains of cementite Fe3C and α-Fe with their ratio in wt %:(90÷95):(10÷5). Method of cathode manufacturing includes preliminary exposure of said.
EFFECT: nanocrystalline composite material in vacuum 5÷10 Pa for 1÷2 h at temperature 450÷550°C, after which its magnetic-impulse pressing is carried out with amplitude 1÷2 GPa and duration of pressure pulses 300÷400 mcs.
EFFECT: manufacturing of cathode with lower overtension of reaction of electrochemical hydrogen release is ensured
5 cl, 1 ex, 5 dwg
Title | Year | Author | Number |
---|---|---|---|
IRON-BASED MATERIAL FOR ELECTRODE FOR ELECTROCHEMICAL PRODUCTION OF HYDROGEN AND METHOD OF ITS MANUFACTURING | 2013 |
|
RU2518466C1 |
CATHODE FOR ELECTROCHEMICAL HYDROGEN GENERATION, AND METHOD FOR ITS MANUFACTURE | 2013 |
|
RU2553737C2 |
METHOD OF OBTAINING OF NANOWHISKER STRUCTURES OF OXIDE TUNGSTEN BRONZES ON COAL MATERIAL | 2013 |
|
RU2525543C1 |
ELECTROCHEMICAL METHOD FOR SYNTHESIS OF HYBRID CATALYST SYSTEMS BASED ON MODIFIED CARBON CONTAINING ON SURFACE TUNGSTEN OXIDE BRONZES | 2015 |
|
RU2579119C1 |
PRODUCTION OF ELECTRODES WITH POROUS NICKEL COATING FOR ALKALINE WATER ELECTROLYTIC CELLS | 2013 |
|
RU2534014C1 |
METHOD FOR PREPARING CATALYST ELECTRODE FOR ELECTROCHEMICAL HYDROGEN PRODUCTION | 2022 |
|
RU2813184C1 |
ELECTRICALLY ACTIVATED MATERIAL FOR CATHODE PARTS AND ITS MANUFACTURING PROCESS | 1995 |
|
RU2146308C1 |
METHOD FOR MAKING CATHODE | 0 |
|
SU990876A1 |
METHOD FOR PLASMA ELECTROCHEMICAL PROCESSING OF GRAPHITE FROM USED LITHIUM-ION BATTERIES | 2023 |
|
RU2825576C1 |
METHOD OF MERCURY IDENTIFICATION BY CATHODE-ANODE VOLTAMMETRY | 2013 |
|
RU2533337C1 |
Authors
Dates
2014-04-10—Published
2011-12-13—Filed