CN106694550A - Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane - Google Patents
Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane Download PDFInfo
- Publication number
- CN106694550A CN106694550A CN201510510233.0A CN201510510233A CN106694550A CN 106694550 A CN106694550 A CN 106694550A CN 201510510233 A CN201510510233 A CN 201510510233A CN 106694550 A CN106694550 A CN 106694550A
- Authority
- CN
- China
- Prior art keywords
- palladium
- cold rolling
- alloy membrane
- silver
- rolling
- 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.)
- Pending
Links
Landscapes
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a novel preparation technology for cold rolling of an ultrathin Pd-Ag alloy membrane. The preparation technology for cold rolling of the ultrathin Pd-Ag alloy membrane includes the steps that a two-roller-type cold rolling mill is adopted for clamping Pd-Ag foil between pure copper plates with the thickness being 5mm, and rolling is performed repeatedly. The Pd-Ag foil is clamped between the pure copper plates for rolling, a thinner alloy membrane can be obtained, the alloy membrane can be rolled more uniformly and compactly, and thus the defects are reduced; and moreover, the preparation technology is simple, cost is low and industrial production is facilitated.
Description
Technical field
The present invention relates to a kind of palladium-silver alloy membrane, a kind of new preparation process of cold rolling superthin palladium-silver alloy membrane is refered in particular to.
Background technology
It is well known that hydrogen energy source has many advantages, such as hydrogen calorific value is high, it is fast to light, and has good burning performance, burning-point is high, burning velocity is fast.In present big city, automobile is the larger class of energy consumption, and it is electric energy or vehicle used energy that Hydrogen Energy can be conveniently transformed into by certain approach, and it has energy utilization rate higher.Hydrogen Energy is the energy of green, if being applied to vehicle used energy, it will be the following most important approach for solving urban atmospheric pollution.At present, about 95% hydrogen is obtained by the steam conversion of hydrocarbon in the world, and this technique has very big defect：Power consumption is big, and investment is high, complex process；And hydrogen manufacturing approach also has very big deficiency in recovery, it does not possess flawless suitable recovery method also, in process of production, often with the discharge of a large amount of dusty gas.Membrane separation technique because it to possess investment small, equipment is light the features such as small, energy loss is small, easy to maintenance, preparation section is simple, it has also become the focus of competition is developed in countries in the world in Hydrogen Separation high-tech sector.In current research work, palladium-silver alloy membrane receives greatly attention, because it has preferable hydrogen penetrating quality, and it is different from other metals, its high temperature resistant, so it can be not only used for the purification of hydrogen and separates, can serve as the reactor of dehydrogenation, hydrogen manufacturing again.To a certain extent, reaction and separate integration are realized；Additionally, the Hydrogen Separation that alloy film will can be produced in reaction is gone out, chemical balance is thus set not stop change, the direction towards favourable reaction is carried out.
Preparing Pd-Ag alloy membrane technology mainly has physical vapour deposition (PVD), vacuum sputtering, chemical vapor deposition, plating and chemical plating etc. at present, but the above method is individually present some merits and demerits, and it is typically all that palladium-silver alloy membrane is deposited on cellular ceramic substrate.This Pd-Ag alloy/ceramic composite membrane is easy on metal/ceramic interface produce shear stress in Thermal Cycling because metal is different from the thermophysical property of ceramics, so that composite membrane fails.Additionally, the composite membrane prepared by this technique is not easy to recycling after failure, so as to cause the waste of resource.
The content of the invention
To solve the above problems, the invention provides a kind of new preparation process of cold rolling superthin palladium-silver alloy membrane.
To reach goal of the invention, the technical solution adopted in the present invention is：A kind of new preparation process of cold rolling superthin palladium-silver alloy membrane, it is characterised in that：The manufacture craft of the cold rolling superthin palladium-silver alloy membrane is：Palladium-silver foil is clipped in the middle of the thick fine copper plates of 5mm using dual roll type cold-rolling mill, repeat-rolling is multiple.
Silver content is calculated as 25% according to atomic percentage in the palladium-silver foil, and thickness is 50 μm.
The rolling mill practice is to be made annealing treatment after often rolling three times.
The annealing is carried out in argon atmospher protection stove, and 1200 DEG C are incubated 2 hours.
Beneficial effects of the present invention are：（1）Palladium-silver foil is clipped in the middle of fine copper plate and is rolled, thinner alloy film, and the more uniform, consolidation that alloy film can be rolled can be not only obtained, so as to reduce defect；（2）It is process is simple, with low cost, beneficial to industrialized production.
Brief description of the drawings
Fig. 1 is the surface topography of 3 μ m-thick cold rolling superthin palladium-silver alloy membranes.
Specific embodiment
With reference to concrete mode, the present invention is described further, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of the present invention.
Embodiment 1：
Raw material：50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel.
The preparation of cold rolling superthin palladium-silver alloy membrane：By 50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel is clipped in the middle of the thick fine copper plates of 5mm, uses duo mill repeat-rolling, is made annealing treatment after often rolling three times, is repeated 2 times, and with cold rolling the obtained Pd-Ag alloy film thickness of miking, finally obtains 5 μ m-thick ultra-thin palladium-silver alloy membranes.
Embodiment 2：
Raw material：50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel.
The preparation of cold rolling superthin palladium-silver alloy membrane：By 50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel is clipped in the middle of the thick fine copper plates of 5mm, uses duo mill repeat-rolling, is made annealing treatment after often rolling three times, is repeated 6 times, and with cold rolling the obtained Pd-Ag alloy film thickness of miking, finally obtains 3 μ m-thick ultra-thin palladium-silver alloy membranes.
Embodiment 3：
Raw material：50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel.
The preparation of cold rolling superthin palladium-silver alloy membrane：By 50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel is clipped in the middle of the thick fine copper plates of 5mm, uses duo mill repeat-rolling, is made annealing treatment after often rolling three times, is repeated 8 times, and with cold rolling the obtained Pd-Ag alloy film thickness of miking, finally obtains 2 μ m-thick ultra-thin palladium-silver alloy membranes.
Embodiment 4：
Raw material：50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel.
The preparation of cold rolling superthin palladium-silver alloy membrane：By 50 μm of palladium-silver（Silver content is 25%, atomic percentage）Paper tinsel is clipped in the middle of the thick fine copper plates of 5mm, uses duo mill repeat-rolling, is made annealing treatment after often rolling three times, is repeated 10 times, and with cold rolling the obtained Pd-Ag alloy film thickness of miking, finally obtains 1 μ m-thick ultra-thin palladium-silver alloy membrane.
Using ISM-6510 type ESEMs（SEM）The surface microscopic topographic of sample is determined, as shown in figure 1, little using the alloy film surface defect prepared by patented method.
Claims (4)
1. a kind of new preparation process of cold rolling superthin palladium-silver alloy membrane, it is characterised in that：The manufacture craft of the cold rolling superthin palladium-silver alloy membrane is：Palladium-silver foil is clipped in the middle of the thick fine copper plates of 5mm using dual roll type cold-rolling mill, repeat-rolling is multiple.
2. the new preparation process of a kind of cold rolling superthin palladium-silver alloy membrane according to claim 1, it is characterised in that：Silver content is calculated as 25% according to atomic percentage in the palladium-silver foil, and thickness is 50 μm.
3. the new preparation process of a kind of cold rolling superthin palladium-silver alloy membrane according to claim 1, it is characterised in that：The rolling mill practice is to be made annealing treatment after often rolling three times.
4. the new preparation process of a kind of cold rolling superthin palladium-silver alloy membrane according to claim 1, it is characterised in that：The annealing is carried out in argon atmospher protection stove, and 1200 DEG C are incubated 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510233.0A CN106694550A (en) | 2015-08-19 | 2015-08-19 | Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510233.0A CN106694550A (en) | 2015-08-19 | 2015-08-19 | Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106694550A true CN106694550A (en) | 2017-05-24 |
Family
ID=58918553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510510233.0A Pending CN106694550A (en) | 2015-08-19 | 2015-08-19 | Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694550A (en) |
-
2015
- 2015-08-19 CN CN201510510233.0A patent/CN106694550A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nam et al. | A study on the palladium/nickel composite membrane by vacuum electrodeposition | |
| US6475268B2 (en) | Supported membrane for hydrogen separation | |
| CN101483244B (en) | Regeneration method of separator for fuel cell, regenerated separator for fuel cell and fuel cell | |
| WO2021259046A1 (en) | Method for preparing cr-al-c based max phase coating and use thereof | |
| CN101800318B (en) | Metal bipolar plate for proton exchange membrane fuel cell and preparation method thereof | |
| JPH11276866A (en) | Hydrogen-permeable membrane and its manufacture | |
| CN109728307A (en) | A kind of preparation and bipolar plates and application of the metal double polar plates based on carbon film modification | |
| CN114481048B (en) | High-conductivity corrosion-resistant amorphous/nanocrystalline composite coexisting coating and preparation method and application thereof | |
| CN111244493A (en) | Surface modification method of thin titanium bipolar plate of proton exchange membrane fuel cell | |
| CN106920977A (en) | ITO/Nb composite modified metal double polar plates of polymer electrolyte film fuel cell and preparation method thereof | |
| CN101108312A (en) | Method of preparing bore diameter gradient FeAl intermetallic compound homogeneity filtering membrane | |
| CN106694550A (en) | Novel preparation technology for cold rolling of ultrathin Pd-Ag alloy membrane | |
| CN201717318U (en) | Metal bipolar plate for proton exchange membrane fuel cell | |
| RU2674748C1 (en) | Method of manufacture of composite hydrogen electrode for oxygen-hydrogen fuel elements | |
| CN1299807C (en) | Method for preparing filter membrane of palladium-base alloy/aperture gradient Ti-Al intermetallic compound homogeneous support body for hydrogen separation | |
| JP3645088B2 (en) | Hydrogen permeable membrane and method for producing the same | |
| JP2006274297A (en) | Dual phase alloy for hydrogen separation and refining | |
| CN100432282C (en) | Tungsten/iridium composite coating layer for carbon material antioxidation and its preparation method | |
| CN115411285A (en) | Fuel cell bipolar plate containing anticorrosive film and preparation method thereof | |
| KR20090117370A (en) | Method of repairing hydrogen separation composite membrane | |
| CN102861517A (en) | Method for preparing cold-rolled ultra-thin palladium-silver alloy membrane | |
| RU2521382C1 (en) | Fabrication of membrane for removal of hydrogen from gas mixes | |
| Yang et al. | Effect of overlayer thickness on hydrogen permeation of Pd60Cu40/V–15Ni composite membranes | |
| CN107008749A (en) | A kind of manufacture method of multiphase V Ti Ni hydrogen separation alloy diaphragms | |
| CN112281004A (en) | Preparation method of tubular palladium alloy membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |