GB1348540A - Method and apparatus for forming a layer of catalyst powder upon a substrate - Google Patents
Method and apparatus for forming a layer of catalyst powder upon a substrateInfo
- Publication number
- GB1348540A GB1348540A GB1510171*[A GB1510171A GB1348540A GB 1348540 A GB1348540 A GB 1348540A GB 1510171 A GB1510171 A GB 1510171A GB 1348540 A GB1348540 A GB 1348540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- substrate
- orifice
- sprayed
- coating
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000000843 powder Substances 0.000 title abstract 9
- 239000000758 substrate Substances 0.000 title abstract 4
- 239000003054 catalyst Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 2
- 239000007921 spray Substances 0.000 abstract 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 229920000151 polyglycol Polymers 0.000 abstract 1
- 239000010695 polyglycol Substances 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
Classifications
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/886—Powder spraying, e.g. wet or dry powder spraying, plasma spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
- B22F3/1109—Inhomogenous pore distribution
-
- 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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
Abstract
1348540 Spray nozzle; coated electrodes SIEMENS AG 14 May 1971 [15 May 1970] 15101/71 Headings B2E and B2F [Also in Divisions Dl and H1] In the spraying of powder for coating a substrate the powder is, in the embodiment shown in Fig. 6 agitated in a hopper by means of a cam device acting against a movable member 56, falls onto a moving conveyor 66 and is impelled out of an orifice 64 by means of a brush 67, along with air from the interior of the chamber 61 which is kept at above atmospheric pressure. Another embodiment (Fig. 5, not shown) has no chamber 61 and the powder is sprayed by the brush alone, and yet another has the powder fed onto a roller in place of the conveyor 66. The device shown in Fig. 3g is a nozzle consisting of a slit 38 in one cylinder and a helical slit 39 in a cylinder within this, relative rotation of these causing the orifice 33 to move, powder fed to the inside being sprayed from the orifice. The powder sprayed is a catalytic powder of "Raxey" silver or "Raney" nickel optionally mixed with binding agents (or impregnated with them) such as PTFE, polyethylene, or polyglycol, the substrate to be coated either moving in the direction of the spray or against this direction and so a gradation of particles from large to small or vice versa is obtained (see coatings 75 and 76, Fig. 7). Shown are two coatings, 74 and 75 with gauze 77 between them. The coating may be dried and then passed between calendar rolls to consolidate it, and the substrate may be in the form of the individual plates of an electrochemical cell (particularly a fuel cell). Fillers, such as soluble salts (e.g. potassium carbonate or potassium oxalate) may also be added to the powder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702023868 DE2023868A1 (en) | 1970-05-15 | 1970-05-15 | Method and device for producing catalyst layers for electrodes in electrochemical cells, in particular fuel elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1348540A true GB1348540A (en) | 1974-03-20 |
Family
ID=5771238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1510171*[A Expired GB1348540A (en) | 1970-05-15 | 1971-05-14 | Method and apparatus for forming a layer of catalyst powder upon a substrate |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA955806A (en) |
| CH (1) | CH524898A (en) |
| DE (1) | DE2023868A1 (en) |
| FR (1) | FR2090075B1 (en) |
| GB (1) | GB1348540A (en) |
| SE (1) | SE380392B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537029A (en) * | 2020-11-16 | 2021-03-23 | 杭州德迪智能科技有限公司 | 3D printing equipment |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116804A (en) * | 1976-11-17 | 1978-09-26 | E. I. Du Pont De Nemours And Company | Catalytically active porous nickel electrodes |
| US4287232A (en) * | 1978-06-28 | 1981-09-01 | United Technologies Corporation | Dry floc method for making an electrochemical cell electrode |
| FR2468218A1 (en) * | 1979-10-18 | 1981-04-30 | Alsthom Cgee | METHOD OF MANUFACTURING BY CALENDERING POROUS THIN STRIPS AND PRODUCTS OBTAINED, ESPECIALLY ELECTRODES FOR FUEL CELLS |
| NL8003949A (en) * | 1980-07-09 | 1982-02-01 | Electrochem Energieconversie | METHOD FOR MANUFACTURING A COAT OF AN ELECTRODE FOR A CELL, IN PARTICULAR FOR A FUEL CELL. |
| BE1008456A3 (en) * | 1994-06-07 | 1996-05-07 | Vito | METHOD FOR MANUFACTURING AN ELECTRODE GAS DIFFUSION. |
| DE102004038413B4 (en) * | 2004-07-30 | 2006-09-28 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for producing a coating with spatially varying properties |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2309018A (en) * | 1940-06-19 | 1943-01-19 | Gen Motors Corp | Method of making composite strip stock |
-
1970
- 1970-05-15 DE DE19702023868 patent/DE2023868A1/en active Pending
-
1971
- 1971-04-16 CH CH552171A patent/CH524898A/en not_active IP Right Cessation
- 1971-05-11 CA CA112,684A patent/CA955806A/en not_active Expired
- 1971-05-12 SE SE7106171A patent/SE380392B/en unknown
- 1971-05-14 FR FR7117675A patent/FR2090075B1/fr not_active Expired
- 1971-05-14 GB GB1510171*[A patent/GB1348540A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537029A (en) * | 2020-11-16 | 2021-03-23 | 杭州德迪智能科技有限公司 | 3D printing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| SE380392B (en) | 1975-11-03 |
| FR2090075B1 (en) | 1976-07-09 |
| DE2023868A1 (en) | 1971-11-25 |
| FR2090075A1 (en) | 1972-01-14 |
| CH524898A (en) | 1972-06-30 |
| CA955806A (en) | 1974-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |