CN104475125A - Method for preparing Pd/CuO composite nanometer porous material by using amorphous alloy for dealloying - Google Patents

Method for preparing Pd/CuO composite nanometer porous material by using amorphous alloy for dealloying Download PDF

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Publication number
CN104475125A
CN104475125A CN201410624120.9A CN201410624120A CN104475125A CN 104475125 A CN104475125 A CN 104475125A CN 201410624120 A CN201410624120 A CN 201410624120A CN 104475125 A CN104475125 A CN 104475125A
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content
porous structure
amorphous alloy
cuo composite
composite nano
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徐文策
朱胜利
李朝阳
崔振铎
杨贤金
井上明久
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Tianjin University
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Tianjin University
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    • 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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Abstract

The invention discloses a method for preparing a Pd/CuO composite nanometer porous material by using amorphous alloy. The method comprises: preparing Ti-Cu-Pd amorphous alloy according to the following atomic percent content: 20%-30% of Ti, 40%-65% of Cu, and 5%-20% of Pd; cutting the Ti-Cu-Pd amorphous alloy into a strip with the thickness of 10 mu m-30 mu , the width of 15 mm-20 mm and the length of 1 cm-3 cm; performing ultrasonic processing in anhydrous ethanol for 5 min, cleaning with deionized water, and drying for usage; putting the strip and a hydrochloric acid aqueous solution with the molar ratio of 1.25 M-5 M in an enclosed container for reaction, and controlling the reaction temperature to be 70 DEG C-180 DEG C and the reaction time of 4 h-10 h, flushing the prepared sample after the reaction is finished, and drying, so as to obtain the Pd/CuO composite nanometer porous material. The Pd/CuO composite nanometer porous material has a composite nanometer porous structure with large specific surface area and electrocatalytic activity. The method is low in enforcement cost, simple to operate and short in time consumption, and is efficient and economic.

Description

Method and the application thereof of reasonable offer Pd/CuO composite Nano porous material is taken off with amorphous alloy
Technical field
The present invention relates to a kind of novel nano-material, be mainly used in the anode catalyst material in fuel cell system.
Background technology
In recent years, fuel cell is regarded as a kind of clean energy resource had a extensive future becomes study hotspot both domestic and external gradually.Platinum and platinum base alloy receive the extensive concern of scientific research personnel as the most frequently used fuel-cell catalyst, and it is catalyst based that people have prepared platinum base nano-wire, nano flower and various load type platinum by the method such as chemical method, electro-deposition.But traditional platinum based catalyst preparation cost is high, its stability is lower simultaneously, and the Novel anode catalyst therefore researching and developing high activity low cost has great importance in fuel cell field.Palladium is close with platinum character, but lower than platinum cost, and palladium-based catalyst also shows higher catalytic stability simultaneously.But the catalytic activity of block noble metal catalyst is lower and cost is higher.
Compared with bulk metal, nano-porous structure is that noble metal catalyst provides larger specific area, and it has, and density is little, quality is light, specific area is large, mechanical property high, has been widely used in the field such as sensor, catalysis.In addition, transition-metal oxide can adsorb oxygen-containing functional group in the solution, and these oxygen-containing functional groups can promote the electrocatalysis oxidation reaction of organic molecule.Therefore, in order to promote the catalytic activity of catalyst to greatest extent, transition metal oxide is applied to fuel-cell catalyst field gradually as a kind of auxiliary material.
De-alloyage due to its production cost low, easy and simple to handle, and obtained nano porous metal to have aperture little and even, advantages such as specific area is large and become Application comparison one of method widely in recent years.Compared to crystalline alloy, the composition regulation and control of non-crystaline amorphous metal are more flexible, and Elemental redistribution is more even, is therefore a kind of desirable de-alloy persursor material.
Summary of the invention
For prior art, the invention provides a kind of method that cost is low, preparation process simply takes off reasonable offer compound Pd/CuO composite nano-porous structure material with amorphous alloy, its composite has the nano-porous structure of even pore distribution.The invention process expense is low, easy and simple to handle, consuming time short, is a kind of synthetic method of high-efficiency and economic.The composite nano-porous structure material that the present invention prepares is mainly used in the anode catalyst in fuel cell system.
In order to solve the problems of the technologies described above, a kind of amorphous alloy provided by the invention takes off the method for reasonable offer Pd/CuO composite nano-porous structure material, comprises the following steps:
Step one, prepare Ti-Cu-Pd non-crystaline amorphous metal according to following component and atom percentage content: the content of the content of Ti to be the content of 20%-30%, Cu be 40%-65%, Pd is 5%-20%;
Step 2, Ti-Cu-Pd non-crystaline amorphous metal obtained for step one is cut into thickness is 10 μm-30 μm, and width is 15mm-20mm, and length is the band of 1cm-3cm; This band is in absolute ethyl alcohol after ultrasonic 5min, and cleaning in deionized water is also for subsequent use in air drying;
Step 3, Ti-Cu-Pd AMORPHOUS ALLOY RIBBONS step 2 obtained and molar concentration are that the aqueous hydrochloric acid solution of 1.25M-5M is together placed in closed container and reacts, reaction temperature is 70 DEG C-180 DEG C, reaction time is 4h-10h, reaction is terminated rear obtained sample deionized water rinsing, and is Pd/CuO composite nano-porous structure material after drying in atmosphere.
Compared with prior art, the invention has the beneficial effects as follows:
De-alloyage due to its production cost low, easy and simple to handle, and obtained nano porous metal to have aperture little and even, advantages such as specific area is large and become Application comparison one of method widely in recent years.The compound Pd/CuO nano-porous structure material prepared by de-alloyage, its nano-porous structure stable chemical nature, in the test of circulation Fuan, the current density of Electrocatalytic Oxidation of Methanol can reach 577.85mA/mg.
Accompanying drawing explanation
Fig. 1 is the SEM figure of Pd/CuO composite nano-porous structure material prepared by the embodiment of the present invention 1 to 4;
Fig. 2 is Pd/CuO composite nano-porous structure material circulation Fuan curve of the preparation of embodiment 1 to 3 shown in Fig. 1.
Detailed description of the invention
Below in conjunction with specific embodiment, the inventive method is described further.Thering is provided embodiment to be convenience in order to understand, is never restriction the present invention.
Embodiment 1:
Take off the method for reasonable offer Pd/CuO composite nano-porous structure material with amorphous alloy, comprise the following steps:
Step one, prepare Ti-Cu-Pd non-crystaline amorphous metal according to following component and atom percentage content: the content of the content of Ti to be the content of 30%, Cu be 65%, Pd is 5%;
Step 2, the Ti that step one is obtained 30cu 65pd 5it is 10 μm-30 μm that non-crystaline amorphous metal is cut into thickness, and width is 15mm-20mm, and length is the band of 1cm-3cm; This band is in absolute ethyl alcohol after ultrasonic 5min, and cleaning in deionized water is also for subsequent use in air drying;
Step 3, get the Ti obtained by step 2 30cu 65pd 5the molar concentration of AMORPHOUS ALLOY RIBBONS quality 0.1g and 46ml is that the aqueous hydrochloric acid solution of 1.25M is together placed in closed container, and be placed in 90 DEG C of drying boxes, insulation reaction 5h, reaction terminates rear obtained sample deionized water rinsing, and is Pd/CuO composite nano-porous structure material after drying in atmosphere.
The composite that embodiment 1 prepares has the nano-porous structure of even pore distribution, and (a) in Fig. 1 shows the SEM figure of this Pd/CuO composite nano-porous structure material.This composite has high specific area, and good electric conductivity and high stability also can promote mass transfer, therefore have good application prospect in the preparation field of fuel battery anode catalyst.
Compared to crystalline alloy, the composition regulation and control of non-crystaline amorphous metal are more flexible, and Elemental redistribution is more even, is therefore a kind of desirable de-alloy persursor material.The Pd/CuO composite prepared by de-alloyage, nano-porous structure stable chemical nature, in the test of circulation Fuan, the current density of Electrocatalytic Oxidation of Methanol can reach 577.85mA/mg.Solid line in Fig. 2 shows Pd/CuO composite nano-porous structure material circulation Fuan curve that embodiment 1 prepares.
Embodiment 2:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step 3, and the molar concentration of aqueous hydrochloric acid solution is 1.25M, and reaction temperature is 90 DEG C, and the reaction time is 5h.(b) in Fig. 1 shows the SEM figure of the Pd/CuO composite nano-porous structure material that this embodiment 2 prepares, and the dotted line in Fig. 2 shows Pd/CuO composite nano-porous structure material circulation Fuan curve that embodiment 2 prepares.
Embodiment 3:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step 3, and the molar concentration of aqueous hydrochloric acid solution is 5M, and reaction temperature is 90 DEG C, and the reaction time is 5h.(c) in Fig. 1 shows the SEM figure of the Pd/CuO composite nano-porous structure material that this embodiment 3 prepares, and the dotted line in Fig. 2 shows Pd/CuO composite nano-porous structure material circulation Fuan curve that embodiment 3 prepares.
Embodiment 4:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step one, and the content of the content of Ti to be the content of 30%, Cu be 50%, Pd is 20%, obtained Ti 30cu 50pd 20non-crystaline amorphous metal; In step 3, the molar concentration of aqueous hydrochloric acid solution is 2.5M, and reaction temperature is 110 DEG C, and the reaction time is 4h.(d) in Fig. 1 shows the SEM figure of the Pd/CuO composite nano-porous structure material that this embodiment 4 prepares.
Embodiment 5:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step one, and the content of the content of Ti to be the content of 30%, Cu be 55%, Pd is 15%, obtained Ti 30cu 55pd 15non-crystaline amorphous metal; In step 3, the molar concentration of aqueous hydrochloric acid solution is 1.25M, and reaction temperature is 90 DEG C, and the reaction time is 10h.
Embodiment 6:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step one, and the content of the content of Ti to be the content of 25%, Cu be 40%, Pd is 10%, obtained Ti 25cu 40pd 10non-crystaline amorphous metal; In step 3, the molar concentration of aqueous hydrochloric acid solution is 4M, and reaction temperature is 70 DEG C, and the reaction time is 10h.
Embodiment 7:
Preparation process is substantially the same manner as Example 1, and its difference is only: in step one, and the content of the content of Ti to be the content of 30%, Cu be 55%, Pd is 5%, obtained Ti 30cu 55pd 5non-crystaline amorphous metal; In step 3, the molar concentration of aqueous hydrochloric acid solution is 3M, and reaction temperature is 150 DEG C, and the reaction time is 8h.
To sum up, in process prepared by the present invention, along with the increase of Pd content in original band, in prepared Pd/CuO composite nano-porous structure, Pd content increases; Along with the increase of reacting salt acid concentration, prepared Pd/CuO composite nano-porous structure aperture becomes large.Along with the increase of reaction temperature, prepared Pd/CuO composite nano-porous structure hole wall is thickening.
Although invention has been described by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.

Claims (9)

1. take off a method for reasonable offer Pd/CuO composite nano-porous structure material with amorphous alloy, it is characterized in that, comprise the following steps:
Step one, prepare Ti-Cu-Pd non-crystaline amorphous metal according to following component and atom percentage content: the content of the content of Ti to be the content of 20%-30%, Cu be 40%-65%, Pd is 5%-20%;
Step 2, Ti-Cu-Pd non-crystaline amorphous metal obtained for step one is cut into thickness is 10 μm-30 μm, and width is 15mm-20mm, and length is the band of 1cm-3cm; This band is in absolute ethyl alcohol after ultrasonic 5min, and cleaning in deionized water is also for subsequent use in air drying;
Step 3, Ti-Cu-Pd AMORPHOUS ALLOY RIBBONS step 2 obtained and molar concentration are that the aqueous hydrochloric acid solution of 1.25M-5M is together placed in closed container and reacts, reaction temperature is 70 DEG C-180 DEG C, reaction time is 4h-10h, reaction is terminated rear obtained sample deionized water rinsing, and is Pd/CuO composite nano-porous structure material after drying in atmosphere.
2. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 65%, Pd is 5%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 1.25M, and reaction temperature is 90 DEG C, and the reaction time is 5h.
3. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 65%, Pd is 5%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 1.25M, and reaction temperature is 90 DEG C, and the reaction time is 5h.
4. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 65%, Pd is 5%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 5M, and reaction temperature is 90 DEG C, and the reaction time is 5h.
5. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 50%, Pd is 20%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 2.5M, and reaction temperature is 110 DEG C, and the reaction time is 4h.
6. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 55%, Pd is 15%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 1.25M, and reaction temperature is 90 DEG C, and the reaction time is 10h.
7. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 25%, Cu be 40%, Pd is 10%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 4M, and reaction temperature is 70 DEG C, and the reaction time is 10h.
8. take off the method for reasonable offer Pd/CuO composite nano-porous structure material according to claim 1 with amorphous alloy, wherein: in step one, the content of the content of Ti to be the content of 30%, Cu be 55%, Pd is 5%; In step 3, the molar concentration of aqueous hydrochloric acid solution is 3M, and reaction temperature is 150 DEG C, and the reaction time is 8h.
9. the Pd/CuO composite nano-porous structure material prepared by the method that amorphous alloy takes off reasonable offer Pd/CuO composite nano-porous structure material according to any one of claim 1 to 7 application in the fuel cell system in anode catalyst material.
CN201410624120.9A 2014-11-06 2014-11-06 Method for preparing Pd/CuO composite nanometer porous material by using amorphous alloy for dealloying Pending CN104475125A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105633422A (en) * 2016-03-21 2016-06-01 北京化工大学 Method for massively preparing platinum-based dealloyed electrocatalyst for cathode of fuel cell
CN105734457A (en) * 2016-02-29 2016-07-06 天津大学 Method for preparing Pd-Cu-S amorphous material by using amorphous alloy and application thereof
CN105772033A (en) * 2016-02-29 2016-07-20 天津大学 Method for preparing Pd-S amorphous material by using amorphous alloy and application thereof
CN106654291A (en) * 2016-11-17 2017-05-10 天津大学 Preparation and application of palladium/copper oxide nano porous structure composite material loaded with titanium dioxide nanoparticles
CN107507986A (en) * 2017-08-31 2017-12-22 天津大学 A kind of PdSn CuO composites of nano-porous structure prepare and application
CN107755690A (en) * 2017-10-13 2018-03-06 哈尔滨工业大学 Micro-/ nano web frame alloy powder shape granular materials of surface attachment particle containing CuO and preparation method thereof
CN108091886A (en) * 2016-11-23 2018-05-29 天津大学 A kind of nano-porous structure composite material and preparation method thereof and alcohols catalytic performance application
CN108479799A (en) * 2018-02-12 2018-09-04 嘉兴长维新材料科技有限公司 A kind of original position support type foam cells noble metal catalyst and preparation method thereof
CN110923737A (en) * 2018-09-20 2020-03-27 天津大学 Nano porous hydrogen production catalyst and preparation method thereof
CN112169809A (en) * 2020-11-03 2021-01-05 西安工程大学 Preparation method of flexible nano Pd/CuO particle @ foam Cu catalyst
CN114192132A (en) * 2021-12-15 2022-03-18 合肥工业大学 Method for simultaneously obtaining nano-porous strip and nano-fiber powder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001522A (en) * 2014-05-04 2014-08-27 昆明理工大学 Carbon-supported PtCu alloy catalyst with nanopore structure and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001522A (en) * 2014-05-04 2014-08-27 昆明理工大学 Carbon-supported PtCu alloy catalyst with nanopore structure and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WENCE XU ET AL.: "Evolution of palladium/copper oxideetitanium dioxide nanostructures by dealloying and their catalytic performance for methanol electro-oxidation", 《JOURNAL OF POWER SOURCES》 *
WENCE XU ET AL.: "Preparation of Nanoporous Pd/CuO by Dealloying and Their Electrocatalysis for Methanol in Alkaline Condition", 《JOURNAL OF THE ELECTROCHEMICAL SOCIETY》 *

Cited By (15)

* Cited by examiner, † Cited by third party
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CN105734457A (en) * 2016-02-29 2016-07-06 天津大学 Method for preparing Pd-Cu-S amorphous material by using amorphous alloy and application thereof
CN105772033A (en) * 2016-02-29 2016-07-20 天津大学 Method for preparing Pd-S amorphous material by using amorphous alloy and application thereof
CN105772033B (en) * 2016-02-29 2018-09-18 天津大学 Method for preparing Pd-S amorphous material by using amorphous alloy and application thereof
CN105633422A (en) * 2016-03-21 2016-06-01 北京化工大学 Method for massively preparing platinum-based dealloyed electrocatalyst for cathode of fuel cell
CN106654291A (en) * 2016-11-17 2017-05-10 天津大学 Preparation and application of palladium/copper oxide nano porous structure composite material loaded with titanium dioxide nanoparticles
CN108091886A (en) * 2016-11-23 2018-05-29 天津大学 A kind of nano-porous structure composite material and preparation method thereof and alcohols catalytic performance application
CN107507986A (en) * 2017-08-31 2017-12-22 天津大学 A kind of PdSn CuO composites of nano-porous structure prepare and application
CN107755690A (en) * 2017-10-13 2018-03-06 哈尔滨工业大学 Micro-/ nano web frame alloy powder shape granular materials of surface attachment particle containing CuO and preparation method thereof
CN107755690B (en) * 2017-10-13 2019-07-02 哈尔滨工业大学 The micro-/ nano web frame alloy powder shape granular materials and preparation method thereof of surface attachment particle containing CuO
CN108479799A (en) * 2018-02-12 2018-09-04 嘉兴长维新材料科技有限公司 A kind of original position support type foam cells noble metal catalyst and preparation method thereof
CN110923737A (en) * 2018-09-20 2020-03-27 天津大学 Nano porous hydrogen production catalyst and preparation method thereof
CN112169809A (en) * 2020-11-03 2021-01-05 西安工程大学 Preparation method of flexible nano Pd/CuO particle @ foam Cu catalyst
CN112169809B (en) * 2020-11-03 2024-01-19 深圳万知达科技有限公司 Preparation method of flexible nano Pd/CuO particle@foam Cu catalyst
CN114192132A (en) * 2021-12-15 2022-03-18 合肥工业大学 Method for simultaneously obtaining nano-porous strip and nano-fiber powder
CN114192132B (en) * 2021-12-15 2024-03-05 合肥工业大学 Method for simultaneously obtaining nano porous strip and nano fiber powder

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