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Catalyst for hydrogen production

A technology of catalysts and oxides, which is applied in the field of hydrogen production catalysts for catalytic reduction of water with visible light, can solve immature problems and achieve high hydrogen production activity

Inactive Publication Date: 2011-10-19
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research in this area is still immature, and there are still many problems to be solved

Method used

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  • Catalyst for hydrogen production
  • Catalyst for hydrogen production
  • Catalyst for hydrogen production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] With 100mg carbon nanotubes (MWNTs, its XRD pattern is as figure 1 (a)), 0.38mL 0.1mol L -1 Copper nitrate, 0.4mL 0.1mol L -1 Nickel nitrate aqueous solution was added to a 100mL beaker and diluted with water to 20mL. After stirring at room temperature for 1 h, the water was evaporated to dryness to obtain a carbon nanotube-metal salt precursor.

[0024] The obtained precursor was put into a muffle furnace, and calcined at 300°C for 4 hours in an air atmosphere to obtain a carbon nanotube-CuO / NiO system. The XRD spectrum is as follows: figure 1 As shown in (b), the transmission electron microscope picture is as follows figure 2 shown.

[0025] Put 80mg carbon nanotube-CuO / NiO system into the solution (1mg / mL) of 80mL eosin Y (Eosin Y), in N 2 Soak for 30min under protection to obtain the eosin-carbon nanotube-CuO / NiO catalytic integrated system, wherein the mass ratio of eosin, carbon nanotube and CuO / NiO is 1:0.94:0.06, wherein the mass ratio of CuO:NiO is 1:1. ...

Embodiment 2～15

[0027] The experimental procedure of embodiment 2~15 is identical with embodiment 1, and difference only is:

Embodiment 2

[0028] Add 0.006mmol copper nitrate, 0.06mmol nickel nitrate in embodiment 2, the mass ratio of eosin, carbon nanotube, CuO / NiO in the catalyst obtained is 1: 0.94: 0.06, wherein, the mass ratio of CuO: NiO is 1: 10;

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Abstract

The invention discloses a catalyst for hydrogen production and a preparation method thereof. In the catalyst for hydrogen production, eosin is used as a sensitizing agent, a carbon nano-tube is used as a carrier and a photoinduced electron channel, and a copper-based composite metal oxide is used as a catalyst promoter. The preparation method comprises the following steps of: mixing the carbon nano-tube and a metal saline solution, adding water, stirring for several hours, and evaporating water to dryness so as to obtain a carbon nano-tube and metal saline precursor; at the air atmosphere, calcining the precursor for hours so as to obtain a carbon nano-tube and copper-based composite metal oxide system; and soaking the carbon nano-tube and copper-based composite metal oxide system in an aqueous solution containing eosin Y under the protection of N2, and separating to obtain the catalyst for hydrogen production. Under the irradiation of visible light, the catalyst has higher hydrogen production activity and can be used for producing hydrogen by catalyzing and reducing water in visible light. The copper-based composite metal oxide can be used for replacing Pt to server as the catalyst promoter so that the non-platinization of the catalyst is realized; and therefore, the catalyst has a certain application value in the aspect of hydrogen production by reducing water through photocatalysis.

Description

technical field [0001] The invention relates to a catalyst, in particular to a hydrogen production catalyst, in particular to a visible light catalytic reduction water hydrogen production catalyst. Background technique [0002] At present, the main source of hydrogen energy is petroleum, natural gas and other mineral resources. Its acquisition methods are mainly divided into two categories, one is to use mineral resources as raw materials to produce hydrogen through reforming or partial oxidation, and the other is to use water as raw materials to produce hydrogen through electrolysis or pyrolysis. These traditional hydrogen production methods consume a lot of energy and emit a lot of greenhouse gases. If solar energy can be used to produce hydrogen, the above disadvantages can be overcome. Such a solar-hydrogen energy system will be one of the effective ways to solve energy utilization and ecological environment problems in the future. [0003] There are four main methods...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J23/75B01J23/86B01J23/83B01J23/889B01J23/745B01J23/80B01J23/89B01J23/843C01B3/04
CPCY02E60/36
Inventor 穆劲陈丽莉康诗钊
Owner EAST CHINA UNIV OF SCI & TECH
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