SU591529A1 - Cathode surface activation method - Google Patents

Cathode surface activation method

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Publication number
SU591529A1
SU591529A1 SU762413642A SU2413642A SU591529A1 SU 591529 A1 SU591529 A1 SU 591529A1 SU 762413642 A SU762413642 A SU 762413642A SU 2413642 A SU2413642 A SU 2413642A SU 591529 A1 SU591529 A1 SU 591529A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cathode
cathode surface
activation method
surface activation
heating
Prior art date
Application number
SU762413642A
Other languages
Russian (ru)
Inventor
Юрий Иванович Крюков
Александр Георгиевич Пшеничников
Сергей Федорович Чернышов
Лариса Ивановна Альтенталлер
Валентина Николаевна Журавлева
Зоя Петровна Иванова
Original Assignee
Институт электрохимии АН СССР
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт электрохимии АН СССР filed Critical Институт электрохимии АН СССР
Priority to SU762413642A priority Critical patent/SU591529A1/en
Application granted granted Critical
Publication of SU591529A1 publication Critical patent/SU591529A1/en

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  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Description

Перенапр жение при плотности тока 100 мА/см2 составл ет 0,090-0,100 В В услови х опыта, описанного в приме ре 1.The overvoltage at a current density of 100 mA / cm2 is 0.090-0.100 V. Under the conditions of the experiment described in Example 1.

По предлагаемому способу перенапр жение при выделении водорода электролизом 30%-How растворе КОН при составл ет 0,030-0,060. В. при плотности тока 100 мА/см При катодном выделении водорода на электродах из никел  с поверхностным слоем из вьлцелоченного сплава никел  с алюминием плотностью тока 100 мА/см реализуетс  при перенапр жении 0,090-0,095 В в 30%-ный раствор КОН при 70 С. Величина перенапр жени  снижаетс  в 1,5-3 раза, что соответствует увеличению плотности тока при одинаковом значении перенапр жени  в 3-6 раз. Это Означает, что при тех же rabapHTak и расходе электроэнергии можно увеличить производипо водотельность электролизера роду в несколько раз.According to the proposed method, the overpotential in the evolution of hydrogen by electrolysis of a 30% -How KOH solution at is 0.030-0.060. V. at a current density of 100 mA / cm With cathode evolution of hydrogen on nickel electrodes with a surface layer of whitened nickel alloy with aluminum, a current density of 100 mA / cm is realized at an overvoltage of 0.090-0.095 V in a 30% KOH solution at 70 ° C The magnitude of the overvoltage is reduced by 1.5-3 times, which corresponds to an increase in the current density at the same value of overvoltage by 3-6 times. This means that with the same rabapHTak and power consumption it is possible to increase the production capacity of the cell electrolyzer several times.

Claims (2)

1.Способ активации поверхности катода, включающий нанесение на его поверхность алюмини , нагрев1. Method of activating the surface of the cathode, including the deposition of aluminum on its surface, heating и выщелачивание, отличающийс   тем, что, с целью увеличени  электрохимической активности никелевого катода, нанесение на поверхность катода алинлинн  осуществл ют при его нагреве в смеси алк линиевого порошка, окиси алюмини  и хлористого аммони .and leaching, characterized in that, in order to increase the electrochemical activity of the nickel cathode, the Allynn is deposited on the cathode surface when it is heated in a mixture of alkalinium powder, alumina and ammonium chloride. 2.Способ попЛ, отличающийс  тем, что нагрев провод т при 700-750 С.2. A popl method, characterized in that the heating is carried out at 700-750 C. Источники информации, прин тые во внимание при экспертизе:Sources of information taken into account in the examination: 1. Авторское свидетельство СССР 206094, кл. В 01 J 23/00, 19651. USSR author's certificate 206094, cl. B 01 J 23/00, 1965
SU762413642A 1976-10-25 1976-10-25 Cathode surface activation method SU591529A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762413642A SU591529A1 (en) 1976-10-25 1976-10-25 Cathode surface activation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762413642A SU591529A1 (en) 1976-10-25 1976-10-25 Cathode surface activation method

Publications (1)

Publication Number Publication Date
SU591529A1 true SU591529A1 (en) 1978-02-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU762413642A SU591529A1 (en) 1976-10-25 1976-10-25 Cathode surface activation method

Country Status (1)

Country Link
SU (1) SU591529A1 (en)

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