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Catalyst for producing hydrogen by catalyzing decomposition of formate at room temperature

A catalyst, formate technology, applied in the field of titanium dioxide nanorod supported palladium catalyst, can solve the problems of high loading, increase preparation cost, no room temperature activity, etc., and achieve the effects of simple use conditions, convenient operation and environmental friendliness

Inactive Publication Date: 2016-07-20
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal palladium (Pd) has attracted people's attention as a very good catalyst for hydrogen evolution reaction because of its unique properties. The preparation cost is reduced; at the same time, the currently used catalysts for catalyzing the decomposition of formate are not active at room temperature, and must be heated to generate and release hydrogen.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0011] (1) Preparation of titania nanorod-supported Pd nanoparticles catalyst

[0012] Weigh 1.0 g of titanium dioxide nanorod carrier material in 100 mL of deionized water and ultrasonically disperse it, then add 100 mL of 0.02 mM Na 2 PdCl 4 aqueous solution, and then add 0.02 g of Na 3 C 6 h 5 o 7 , stir well to dissolve and mix well. After continuing to stir for 30min, add 4mL0.02g / mLNaBH 4 The solution was stirred for 30 minutes and then stopped. The catalyst was separated by high-speed centrifugation, washed with water and alcohol three times, dried overnight at 50° C. and then calcined to obtain a palladium nanoparticle catalyst supported on titanium dioxide nanorods.

[0013] (2) Evaluation of the activity of the catalyst in catalyzing the decomposition of formate in aqueous phase

[0014] Take 0.1 g of titanium dioxide nanorod-loaded palladium nanoparticle catalyst, and place it in a glass reaction container at normal temperature and pressure for experimentatio...

Embodiment example 2

[0016] (1) Preparation of titania nanorod-supported Pd nanoparticles catalyst

[0017] Weigh 1.0g titanium dioxide nanorod carrier material in 200mL deionized water and ultrasonically disperse, add 100mL, 0.02mM Na 2 PdCl 4 aqueous solution, and then add 0.05 g of Na 3 C 6 h 5 o 7 , stir well to dissolve and mix well. After continuing to stir for 30min, add 10mL0.01g / mLNaBH 4 The solution was stirred for 30 minutes and then stopped. The catalyst was separated by high-speed centrifugation, washed with water and alcohol three times, dried overnight at 50° C. and then calcined to obtain a palladium nanoparticle catalyst supported on titanium dioxide nanorods.

[0018] (2) Evaluation of the activity of the catalyst in catalyzing the decomposition of formate in aqueous phase

[0019] Take 0.1 g of titanium dioxide nanorod-supported palladium nanoparticle catalyst, and place it in a glass reaction vessel at normal temperature and pressure for the experiment. The experiment pr...

Embodiment example 3

[0021] (1) Preparation of titania nanorod-supported Pd nanoparticles catalyst

[0022] Weigh 1.0g titanium dioxide nanorod carrier material in 200mL deionized water and ultrasonically disperse, add 100mL, 0.04mM Na 2 PdCl 4 aqueous solution, and then add 0.2 g of Na 3 C 6 h 5 o 7 , stir well to dissolve and mix well. After continuing to stir for 30min, add 10mL0.02g / mLNaBH 4 The solution was stirred for 30 minutes and then stopped. The catalyst was separated by high-speed centrifugation, washed with water and alcohol three times, dried overnight at 50° C. and then calcined to obtain a palladium nanoparticle catalyst supported on titanium dioxide nanorods.

[0023] (2) Evaluation of the activity of the catalyst in catalyzing the decomposition of formate in aqueous phase

[0024] Same as step (2) of the implementation case 2.

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Abstract

The invention particularly relates to a titanium dioxide nanorod palladium-supported (Pd) nanoparticle catalyst for formate decomposition reaction. A titanium dioxide nanorod is used as a support, nano Pd is supported to the surface of the support by means of surface modified in-situ reduction to obtain the supported catalyst. By using the supported catalyst for producing hydrogen by decomposing a formate at room temperature, efficient catalytic decomposition of all formats can be achieved at room temperature, and pure H2 is produced without other gases.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a titanium dioxide nanorod-supported palladium catalyst for catalyzing the decomposition of formate to produce hydrogen at room temperature. Background technique [0002] Hydrogen has been widely valued as a clean energy, and it is generally used as a power source for fuel cells. Hydrogen is also the main industrial raw material, used as raw material for synthetic ammonia, synthetic methanol, synthetic hydrochloric acid, used as hydrodesulfurization agent in petroleum refining, etc., in petrochemical industry, electronic industry, metallurgical industry, food processing, fine organic synthesis, aerospace and so on have a wide range of applications. [0003] Traditional industrial hydrogen production methods mainly include: hydrogen production by electrolysis of water, hydrogen production by water gas method or hydrogen production by petroleum cracking. Water electrolysis requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/44C01B3/02
CPCB01J23/44C01B3/02
Inventor 周克斌王进
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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