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Reaction device utilizing sunlight for directly decomposing water to produce hydrogen

A technology of reaction device and water splitting, applied in hydrogen production, fuel cells, electrochemical generators, etc., can solve problems such as easy recombination, and achieve the effects of increasing reaction efficiency, low cost and simple structure

Inactive Publication Date: 2014-06-18
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the photoelectrochemical cell, the reaction of semiconductor photocatalytic water splitting and dehydrogenation is greatly simplified, but the electron-hole pairs generated on the same semiconductor particle by photoexcitation are very easy to recombine

Method used

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  • Reaction device utilizing sunlight for directly decomposing water to produce hydrogen
  • Reaction device utilizing sunlight for directly decomposing water to produce hydrogen
  • Reaction device utilizing sunlight for directly decomposing water to produce hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present embodiment comprises: right-angle mirror 1, base 4, cross bracket 6, reactor 7, bottom surface mirror 9, reactor frame 12, wherein, reactor 7 is arranged on the cross bracket 6 by reactor frame 12, and the bottom surface reflects light The mirror 9 is fixed on the cross bracket 6, the right-angle mirror 1 is fixed on the reactor 7, the cross bracket 6 is fixed on the base 4, and the upper and lower surfaces of the reactor 7 are high light-transmitting glass.

[0039] A fluorescence calibration plate 2 is arranged on the reactor 7, and the fluorescence surface of the fluorescence calibration plate 2 faces downward.

[0040] The lower surface of the reactor 7 is horizontal, and the upper surface is inclined.

[0041] A gas outlet 5 is provided on one edge of the reactor 7, and a temperature sensor is provided on the gas outlet 5.

[0042] The mirror surface of the bottom reflector 9 is parallel to the lower bottom plate of the reactor 7 .

[0043] The edge o...

Embodiment 2

[0051] Embodiment 2 is a modification example of Embodiment 1.

[0052] The difference between this embodiment and embodiment 1 is that the reactor 7 is preferably a tubular reactor 7'.

[0053] When using the tubular reactor 7', due to the need to avoid the impact of precipitation on the reaction, pulse gas needs to be added. This embodiment also includes a pulse generator 15 and a steam generator 16. The steam generator 16 generates steam by heating water with solar energy. The gas is generated by the steam generator 16, isobarically expanded in the pulse generator 15, and the gas is ejected when the piston rises to the outlet pipe. Pass into the gas inlet end 22 of tubular reactor 7 ', form disturbance, as Figure 5 shown.

[0054] Steam generator 16 is made up of concentrator and receiver, and the outer surface of receiver is painted black, and water is added inside, produces steam; As Figure 4 As shown, the steam enters the steam inlet 20 in the pulse generator from t...

Embodiment 3

[0057] Embodiment 3 is a variation of Embodiment 2.

[0058] The difference between this embodiment and embodiment 2 is that the tubular reactor 7' is a flat reactor.

[0059] The above three embodiments are specifically:

[0060] like figure 1 and figure 2 As shown, the base 4 is provided with a swivel pair 10, which can adjust the rotation of the whole device; on the swivel pair 10, a vertical shaft 14 is connected, and there are scales on the vertical shaft 14, which are used to adjust the height of the bottom reflector 9; the bracket crossbeam 13 passes through the first A one-dimensional moving pair 8 is connected with the vertical axis 14 . On the support crossbeam 13, connect the bottom reflector 9 by the second one-dimensional moving pair 11; the top of the vertical axis 14 fixes the reactor 7 by the cross bracket 6; The corresponding end of the second point 24 is the thickest. When using the tubular generator 7', the generator gas outlet 5 is located at the end o...

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Abstract

The invention discloses a reaction device utilizing sunlight for directly decomposing water to produce hydrogen. The reaction device comprises a right angle reflector, a base, a cross support, a reactor, a bottom reflector and a reactor frame, wherein the reactor is arranged on the cross support through the reactor frame, the bottom reflector is fixed on the cross support, the right angle reflector is fixed on the reactor, the cross support is fixed on the base, and the upper and lower surfaces of the reactor are made of glass with high light transmittance. According to the reaction device, a solar photocatalyst is used for a hydrogen production experiment, the structure is simple, the cost is low, compared with the existing devices, the light area is enlarged, the reaction can be rotated, the volume of the reactor is increased, the hydrogen producing amount is greatly improved, the existing devices mainly depend on condensation, used lights are reflected lights completely, most lights are directly irradiated on the reactor, the efficiency of direct lights is greatly improved compared with reflected lights, the upper and lower surfaces are irradiated simultaneously, and effects of precipitation are minimized.

Description

technical field [0001] The invention belongs to the field of high-efficiency preparation of renewable energy, in particular to a reaction device for directly decomposing water to produce hydrogen by utilizing sunlight. Background technique [0002] Ever since life appeared on the earth, everything has depended on the sun for growth. Photosynthesis is the process by which green plants and algae convert carbon dioxide and water into carbohydrates under the action of visible light. The energy and materials that human beings rely on for survival come directly and indirectly from photosynthesis. Fossil fuels such as oil, coal, and natural gas are the products of photosynthesis left to us by nature. Due to the rapid development of the world, the energy left to us by nature is becoming more and more scarce, which has inspired scientists from various countries to study photosynthesis and its simulation. It can only be considered in terms of energy. Photolysis of water to produce h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/04H01M8/06
CPCY02E60/364Y02E60/50Y02E60/36Y02P20/133
Inventor 吕梁王黎明张祎上官文峰
Owner SHANGHAI JIAOTONG UNIV
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