RU2016115797A - A method of producing an electrocatalyst platinum on carbon - Google Patents

A method of producing an electrocatalyst platinum on carbon Download PDF

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Publication number
RU2016115797A
RU2016115797A RU2016115797A RU2016115797A RU2016115797A RU 2016115797 A RU2016115797 A RU 2016115797A RU 2016115797 A RU2016115797 A RU 2016115797A RU 2016115797 A RU2016115797 A RU 2016115797A RU 2016115797 A RU2016115797 A RU 2016115797A
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Russia
Prior art keywords
platinum
hydroxides
hydrolysis
carbon
carried out
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RU2016115797A
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Russian (ru)
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RU2646761C2 (en
Inventor
Григорий Михайлович Дон
Екатерина Владимировна Герасимова
Алексей Владимирович Левченко
Алексей Михайлович Кашин
Александр Владимирович Сивак
Юрий Анатольевич Добровольский
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Общество с ограниченной ответственностью "Инэнерджи" (ООО "Инэнерджи")
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Priority to RU2016115797A priority Critical patent/RU2646761C2/en
Publication of RU2016115797A publication Critical patent/RU2016115797A/en
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Publication of RU2646761C2 publication Critical patent/RU2646761C2/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • B01J37/033—Using Hydrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/18—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inert Electrodes (AREA)
  • Catalysts (AREA)

Claims (5)

1. Способ приготовления платиновых электрокатализаторов, нанесенных на поверхность пористых углеродных носителей с удельной поверхностью от 100 до 2000 м2/г, с содержанием металла от 15 до 70 масс. %, предусматривает осаждение коллоидного раствора гидратированного оксида Pt(IV), получаемого гидролизом, его сорбцию углеродным носителем, экспозиция реакционной смеси при температурах 70-100°C в течение 1-2 часов для образования поверхностных оксидов-гидроксидов платины, закрепление наночастиц платины на углеродном носителе с помощью окончательной восстановительной обработки в токе водорода при температуре 120-250°C.1. The method of preparation of platinum electrocatalysts deposited on the surface of porous carbon carriers with a specific surface area of from 100 to 2000 m 2 / g, with a metal content of from 15 to 70 mass. %, provides for the deposition of a colloidal solution of hydrated Pt (IV) oxide obtained by hydrolysis, its sorption by a carbon carrier, exposure of the reaction mixture at temperatures of 70-100 ° C for 1-2 hours to form surface platinum oxide-hydroxides, fixing platinum nanoparticles on carbon media using final reduction treatment in a stream of hydrogen at a temperature of 120-250 ° C. 2. Способ по п. 1, отличающийся тем, что осаждение коллоидного платиносодержащего раствора ведут гидролизом растворами летучих органических кислот до достижения кислотности реакционной смеси, находящейся в интервале рН от 3,5 до 5.2. The method according to p. 1, characterized in that the precipitation of a colloidal platinum-containing solution is carried out by hydrolysis with solutions of volatile organic acids to achieve an acidity of the reaction mixture in the pH range from 3.5 to 5. 3. Способ по п. 1, отличающийся тем, что для гидролиза используется бесхлорный прекурсор соединения платины - гексагидроксоплатиновой кислоты в виде водно-моноэтаноламинового раствора.3. The method according to p. 1, characterized in that a non-chlorine precursor of the platinum-hexahydroxoplatinic acid compound in the form of an aqueous monoethanolamine solution is used for hydrolysis. 4. Способ по п. 1, отличающийся тем, что окончательное восстановление нанесенных оксидов-гидроксидов платины на углеродном носителе проводят обработкой их водной суспензии водным раствором восстановителя - муравьиным альдегидом, гидразином, муравьиной кислотой, низкомолекулярными алифатическими спиртами (этанол, пропанол) при температуре 50-100°C.4. The method according to p. 1, characterized in that the final recovery of the deposited platinum oxide-hydroxides on a carbon carrier is carried out by treating their aqueous suspension with an aqueous solution of a reducing agent - formic aldehyde, hydrazine, formic acid, low molecular weight aliphatic alcohols (ethanol, propanol) at a temperature of 50 -100 ° C. 5. Способ по п. 1, отличающийся тем, что окончательную восстановительную обработку нанесенных оксидов-гидроксидов платины осуществляют парами низших алифатических спиртов этанола, пропанола в процессе сушки электрокатализатора при температуре 60-120°C.5. The method according to p. 1, characterized in that the final reduction treatment of the supported platinum oxide-hydroxides is carried out by pairs of lower aliphatic alcohols of ethanol, propanol during the drying of the electrocatalyst at a temperature of 60-120 ° C.
RU2016115797A 2016-04-22 2016-04-22 Method for producing a platinum electric catalyst on carbon RU2646761C2 (en)

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RU2646761C2 RU2646761C2 (en) 2018-03-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114976078A (en) * 2022-06-28 2022-08-30 中南大学 Platinum-carbon catalyst for proton exchange membrane fuel cell and preparation method thereof
RU2815511C1 (en) * 2023-08-04 2024-03-18 Общество С Ограниченной Ответственностью "Прометей Рд" Method of producing platinum-containing electrocatalysts in non-organic media

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108821352B (en) * 2018-06-21 2020-05-12 绍兴文理学院 Preparation method of nano platinum oxide powder
RU2744103C1 (en) * 2020-03-25 2021-03-02 Общество с ограниченной ответственностью "Инэнерджи" (ООО "Инэнерджи") Method for manufacturing a self-humidifying electrocatalyst for hydrogen-air fuel cells

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1840593A1 (en) * 1986-02-10 2007-09-10 Федеральное государственное унитарное предприятие "Научно-исследовательское производственное предприятие "Квант" Fuel cell catalyst preparation method
US7871955B2 (en) * 2004-04-09 2011-01-18 Basf Fuel Cell Gmbh Platinum catalysts from in situ formed platinum dioxide
RU2324538C1 (en) * 2006-11-30 2008-05-20 Федеральное государственное учреждение Российский научный центр "Курчатовский институт" Catalyst with nanoparticles on carrier and method of its production
JPWO2009051111A1 (en) * 2007-10-15 2011-03-03 株式会社キャタラー Fuel cell supported catalyst and fuel cell
RU2348090C1 (en) * 2007-11-08 2009-02-27 Некоммерческая организация Учреждение Институт проблем химической физики Российской академии наук (статус государственного учреждения (ИПХФ РАН)) Catalyst and method for its production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114976078A (en) * 2022-06-28 2022-08-30 中南大学 Platinum-carbon catalyst for proton exchange membrane fuel cell and preparation method thereof
CN114976078B (en) * 2022-06-28 2024-02-27 中南大学 Platinum-carbon catalyst for proton exchange membrane fuel cell and preparation method thereof
RU2815511C1 (en) * 2023-08-04 2024-03-18 Общество С Ограниченной Ответственностью "Прометей Рд" Method of producing platinum-containing electrocatalysts in non-organic media

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