Catalyst for preparing hydrogen by photolysis of water

A technology for photo-splitting water for hydrogen production and catalyst, applied in the field of photocatalysis, can solve problems such as low catalytic efficiency, and achieve the effects of good catalytic efficiency, high specific surface area, and improved catalytic efficiency

Inactive Publication Date: 2016-06-08
SHANDONG LIANXING ENERGY GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a novel catalyst for the problems o

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0021] Embodiment 1. This embodiment provides a photocatalyst for the production of hydrogen from water, which is characterized by comprising the following raw materials: nano-titanium dioxide and cobalt or nickel salt as the active component, graphene as the carrier, and copper as the auxiliary agent Source or zinc source compound.

Example Embodiment

[0022] Example 2. This example provides a method for photolysis of water to produce a hydrogen catalyst. Firstly, 14.3 g (0.1 mol) of cuprous oxide is weighed and added to 50 ml of ethanolamine, and ultrasonicated for 10 minutes until the mixture is uniform. Weigh 4 g (0.05 mol) of nano titanium dioxide particles with an average particle size of 50 nm, add them to the suspension of ethanolamine and copper dichloride, and then keep the temperature at 30° C. and perform ultrasound for about 20 minutes until the mixture is uniformly mixed. Then weigh 32g of graphene and add it to the above ethanolamine mixture system, raise the temperature to 50°C and continue to sonicate, 0.2 hours later, put the graphene mixture into a mortar or beaker and heat it. Glass can be used during heating. Stir with a rod or a magnetic stirrer to make the heating process more uniform. Heat at 90°C for 2 hours to obtain a solid solution. Then the solid solution was dried under a nitrogen atmosphere at 60...

Example Embodiment

[0023] Embodiment 3, this embodiment provides a method for photolysis of water to produce hydrogen catalyst. Firstly, 14.3 g (0.1 mol) of cuprous chloride is weighed and added to 400 ml of diethanolamine, and ultrasonicated for 8 minutes until the mixture is uniform. Weigh 24 g (0.3 mol) of nano titanium dioxide particles with an average particle diameter of 100 nm, add them to the suspension of diethanolamine and cuprous chloride, and then keep the temperature at 50° C. and perform ultrasound for about 20 minutes until the mixture is uniformly mixed. Then weigh 600g of graphene and add it to the above-mentioned diethanolamine mixture system, raise the temperature to 80°C and continue sonication. After 0.5 hours, put the graphene mixture into a mortar or beaker and heat it. It can be used during heating. Stir with a glass rod or a magnetic stirrer to make the heating process more uniform. Heat at 200°C for 4 hours to obtain a solid solution. Then the solid solution was dried un...

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PUM

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Abstract

The invention relates to the technical field of photocatalysis, and in particular relates to a catalyst for preparing hydrogen by photolysis of water. The catalyst comprises nano titanium dioxide, graphene and a copper source or zinc source compound. A preparation method comprises the following steps: adding the copper source or zinc source compound into organic amine; ultrasonically mixing uniformly; adding the nano titanium oxide into the mixture, heating, and ultrasonically processing; adding the graphene into the mixture, ultrasonically processing, and heating; continuously heating the mixture to obtain a solid solution; and heating and drying the solid solution in N2 atmosphere to obtain the product. The catalyst for preparing hydrogen by photolysis of water, provided by the invention, has the advantages of high catalytic efficiency and high hydrogen generation rate. The cost of raw materials is low; and the graphene is used as a catalyst carrier, so that the catalytic efficiency of the catalyst is improved, and the catalyst has obvious beneficial effects.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to a catalyst for hydrogen production by photolysis of water. Background technique [0002] Hydrogen mainly exists in water and other compounds in the form of compounds. It is a clean and renewable energy with abundant reserves on the earth. In recent years, with the development of the hydrogen production industry, hydrogen energy has become the most efficient, safe and clean energy in the future due to its advantages such as high efficiency, safety and cleanliness. It is hopeful to replace mineral non-renewable energy with new energy, and the research on the direction of hydrogen production by photolysis of water has also become a research hotspot. At present, research on hydrogen production can be divided into two categories, one is hydrogen production by catalytic degradation and reforming of mineral resources, such as petroleum, coal and natural gas, and the other is hydr...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J23/06B01J21/06C01B3/04
CPCB01J21/063B01J23/002B01J23/06B01J23/72B01J35/004C01B3/042Y02E60/36
Inventor 车春玲
Owner SHANDONG LIANXING ENERGY GRP CO LTD
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