CN109289836A - A kind of production hydrogen Pd process for synthetic catalyst - Google Patents
A kind of production hydrogen Pd process for synthetic catalyst Download PDFInfo
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- CN109289836A CN109289836A CN201811201586.2A CN201811201586A CN109289836A CN 109289836 A CN109289836 A CN 109289836A CN 201811201586 A CN201811201586 A CN 201811201586A CN 109289836 A CN109289836 A CN 109289836A
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- solution
- catalyst
- production hydrogen
- synthetic catalyst
- hydrogen
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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
- 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
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The Nafion solution that the mass percent of certain volume ratio is 5% is added in palladium chloride solution, above-mentioned mixed liquor is added dropwise in nickel sheet ultrasonic disperse, and logical hydrogen is restored after to be dried；Sample after reduction is used as and produces hydrogen catalyst, shows good catalytic performance.
Description
Technical field
The invention belongs to the fields of catalyst synthesis, and in particular to a kind of method of reduction palladium chloride as catalyst.
Background technique
Due to the seriousness of a large amount of consumption and environmental pollution of fossil fuel, developing renewable and green energy resource is a master
Want subject under discussion.Hydrogen Energy is that the environmental protection that water electrolysis generates and renewable energy source carrier are widely studied.So far, Pt metal catalyst
It is widely studied because of its high catalysis characteristics in environment and energy source use.However, high cost and limited deposit are mainly to hinder
Hinder, seriously hinders their commercial applications.The present invention replaces Pt using Pd catalyst, because Pd ratio Pt is cheap, and stores up
It measures richer.Importantly, the catalytic performance of Pd is suitable with Pt, them are primarily due to similar face-centered cubic
(fcc) crystal structure and atom size.
On the other hand, in order to increase the specific surface area and active site of catalyst, the partial size for reducing Pd catalyst is
One effective approach, for a long time, the synthesis of nano Pd particle material are mainly this method energy in solution system obtained by reduction
Synthesize several nanometers of particle, the catalyst of smaller particle cannot be obtained since high surface can exist.And this method is handle
Pd (II) ion is dispersed in conducting polymer, and Pd (II) ion is fixed with polymer, avoids the formation of catalysis in reduction
The reunion of agent particle.
Summary of the invention
Present invention hydrogen reducing palladium chloride, as the catalyst of evolving hydrogen reaction.
The invention is realized by the following technical scheme:
The Nafion solution of mass percent 5% is added in palladium chloride solution, it is ultrasonic disperse 0.5~2 hour, micro- by 50
The aforesaid liquid risen is added dropwise in 1 square centimeter of nickel sheet, is restored after to be dried in 40~120 DEG C of logical hydrogen；It will reduction
Sample afterwards is used as production hydrogen catalyst and tests the H2-producing capacity of the catalyst by linear voltammetric scan in alkaline solution.
The concentration of palladium chloride solution of the present invention are as follows: 0.01~1mg/mL.
The volume ratio of palladium chloride solution and Nafion solution of the present invention is are as follows: 10: 1.
The present invention have following major advantage and the utility model has the advantages that
1) Nafion solution is added in the present invention, can be not susceptible to reunite with fixing metal ions, improve catalytic capability；
2) present invention uses hydrogen reducing, and method facilitates environmental protection；
3) Pd catalyst and Pt have similar catalysis characteristics, while having the cost of reduction and the reserves of relative abundance.
Detailed description of the invention
Fig. 1 is the electro-chemical test figure of the embodiment of the present invention 1.
Fig. 2 is the electro-chemical test figure of the embodiment of the present invention 2.
Specific embodiment
Embodiment 1
Take the PdCl of 100 microlitres of 0.5mg/mL2The Nafion solution of 10 microlitres of mass percents 5%, ultrasound is added in solution
Dispersion 30 minutes takes 50 microlitres of drops in 1 square centimeter of nickel sheet.After to be dried, nickel foam is put into the appearance for being persistently connected with hydrogen
In device, restored 3 hours under 40 degree.Then, Electrochemical results are as shown in Fig. 1, are -10mAcm in current density-2
When, the overpotential of the catalyst and business Pt/C are -0.38V；When overpotential is higher, the current density of the catalyst is lower than
Business Pt/C；With the reduction of overpotential, the current density of the catalyst is apparently higher than business Pt/C.
Embodiment 2
Take the PdCl of 100 microlitres of 1mg/mL2The Nafion solution of 10 microlitres of mass percents 5%, ultrasound point is added in solution
It dissipates 30 minutes, takes 50 microlitres of drops in 1 square centimeter of nickel sheet.After to be dried, nickel foam is put into the container for being persistently connected with hydrogen
In, it is restored 3 hours under 40 degree.Then, Electrochemical results are as shown in Fig. 2, are -10mAcm in current density-2When,
The catalyst overpotential is 10mV lower than business Pt/C；With the reduction of overpotential, the current density of the catalyst is apparently higher than quotient
Industry Pt/C.
Claims (3)
1. a kind of production hydrogen Pd process for synthetic catalyst, which is characterized in that in PdCl2Mass percent 5% is added in solution
Nafion solution ultrasonic disperse 0.5~2 hour, 50 microlitres of aforesaid liquid is added dropwise in 1 square centimeter of nickel sheet, to dry
It is restored 3~6 hours at 40~120 DEG C after dry, the sample after reduction is used as production hydrogen catalyst and is passed through in alkaline solution
Linear voltammetric scan tests the H2-producing capacity of the catalyst.
2. a kind of production hydrogen Pd process for synthetic catalyst according to claims 1, which is characterized in that the concentration of palladium chloride solution
Are as follows: 0.01~1mg/mL.
3. a kind of production hydrogen Pd process for synthetic catalyst according to claims 1, which is characterized in that PdCl2Solution and Nafion
The volume ratio of solution are as follows: 10: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201586.2A CN109289836A (en) | 2018-10-15 | 2018-10-15 | A kind of production hydrogen Pd process for synthetic catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201586.2A CN109289836A (en) | 2018-10-15 | 2018-10-15 | A kind of production hydrogen Pd process for synthetic catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109289836A true CN109289836A (en) | 2019-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811201586.2A Pending CN109289836A (en) | 2018-10-15 | 2018-10-15 | A kind of production hydrogen Pd process for synthetic catalyst |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402367A (en) * | 2002-09-30 | 2003-03-12 | 武汉大学 | Process for preparing fuel cell carbon-carried Pt-based catalyst |
| CN101269327A (en) * | 2008-02-04 | 2008-09-24 | 中国科学院上海微系统与信息技术研究所 | Process for producing high-stability carbon carried Pt-Au bi-metal nano-electro-catalyst |
| CN102903944A (en) * | 2012-10-24 | 2013-01-30 | 大连交通大学 | New method for depositing Pt nano particles on surface of Nafion proton exchange membrane |
| KR20150060435A (en) * | 2013-11-26 | 2015-06-03 | 건국대학교 산학협력단 | Composite membrane for fuel cell and its preparing method |
| CN105327700A (en) * | 2015-11-18 | 2016-02-17 | 华南理工大学 | Method for preparing electrocatalysts through liquid-phase reduction of hydrogen at room temperature |
-
2018
- 2018-10-15 CN CN201811201586.2A patent/CN109289836A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402367A (en) * | 2002-09-30 | 2003-03-12 | 武汉大学 | Process for preparing fuel cell carbon-carried Pt-based catalyst |
| CN101269327A (en) * | 2008-02-04 | 2008-09-24 | 中国科学院上海微系统与信息技术研究所 | Process for producing high-stability carbon carried Pt-Au bi-metal nano-electro-catalyst |
| CN102903944A (en) * | 2012-10-24 | 2013-01-30 | 大连交通大学 | New method for depositing Pt nano particles on surface of Nafion proton exchange membrane |
| KR20150060435A (en) * | 2013-11-26 | 2015-06-03 | 건국대학교 산학협력단 | Composite membrane for fuel cell and its preparing method |
| CN105327700A (en) * | 2015-11-18 | 2016-02-17 | 华南理工大学 | Method for preparing electrocatalysts through liquid-phase reduction of hydrogen at room temperature |
Non-Patent Citations (1)
| Title |
|---|
| 罗凡: "低温燃料电池高活性高稳定性铂基催化剂的研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
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Application publication date: 20190201 |
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