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Photocatalytic hydrogen production device and hydrogen production system

A hydrogen production device and photocatalytic technology, applied in the direction of hydrogen, inorganic chemistry, hydrogen production, etc., can solve the problems of low efficiency of hydrogen production by solar energy, achieve the effect of improving the utilization efficiency of sunlight, increasing the overall efficiency, and increasing the ambient temperature

Pending Publication Date: 2022-01-21
浙江高晟光热发电技术研究院有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a photocatalytic hydrogen production device and a hydrogen production system to solve the problem of low hydrogen production efficiency of existing solar energy

Method used

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  • Photocatalytic hydrogen production device and hydrogen production system
  • Photocatalytic hydrogen production device and hydrogen production system
  • Photocatalytic hydrogen production device and hydrogen production system

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Embodiment 1

[0042] see Figure 1 to Figure 3 , in one embodiment, a photocatalytic hydrogen production device, comprising a light-gathering heat collection unit, an oxidation reaction photocatalysis unit, a reduction reaction photocatalysis unit, an electron mediator 6, a first thermoelectric power generation mechanism and a second thermoelectric power generation mechanism .

[0043] Among them, the light-concentrating heat-collecting part is used to collect sunlight and provide sunlight to the oxidation reaction photocatalysis part and the reduction reaction photocatalysis part, so that the oxidation reaction photocatalyst 3 and the reduction reaction photocatalyst 4 can be respectively Oxygen and hydrogen production.

[0044] The two ends of the electron mediator 6 are respectively connected with the water in the oxidation reaction photocatalysis part and the water in the reduction reaction photocatalysis part, and are used to transfer the photogenerated electrons generated by the oxid...

Embodiment 2

[0067] This embodiment provides a hydrogen production system, including the photocatalytic hydrogen production device in the first embodiment above. The solar light is collected and output to the oxidation reaction photocatalysis part and the reduction reaction photocatalysis part by setting the light concentrating heat collection part, and the photogenerated electrons generated by the oxidation reaction are transferred to the photogenerated hole combination of the reduction reaction through the electron mediator 6, Realize the closed-loop reaction; at the same time, the first thermoelectric power generation mechanism and the second thermoelectric power generation mechanism are respectively arranged under the oxidation reaction photocatalysis part and the reduction reaction photocatalysis part, and are in heat transfer contact with the two photocatalysis parts respectively; the first thermoelectric power generation mechanism and the The second thermoelectric power generation me...

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Abstract

The invention discloses a photocatalytic hydrogen production device and a photocatalytic hydrogen production system. Sunlight is collected and output to an oxidation reaction photocatalysis part and a reduction reaction photocatalysis part by arranging a light condensation and heat collection part, and photo-generated electrons generated by oxidation reaction are transferred to photo-generated holes of reduction reaction through an electron mediator to be combined, so that ring-closure reaction is realized. Meanwhile, a first temperature difference power generation mechanism and a second temperature difference power generation mechanism are respectively arranged below the oxidation reaction photocatalysis part and the reduction reaction photocatalysis part and are respectively in heat transfer contact with the two photocatalysis parts. The first temperature difference power generation mechanism and the second temperature difference power generation mechanism form potential difference under the effect of temperature difference and output negative potential to the oxidation reaction photocatalysis part and positive potential to the reduction reaction photocatalysis part respectively, the potential is applied to the two photocatalysis parts, namely, an electric field is applied, sunlight energy needed by photo-induced electrons is effectively reduced, the sunlight utilization efficiency is improved, and the overall photocatalysis efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by photolysis of water, and in particular relates to a photocatalytic hydrogen production device and a hydrogen production system. Background technique [0002] With the intensification of global environmental pollution and the greenhouse effect, hydrogen energy has attracted attention as an energy source with high calorific value and clean combustion products. A large number of hydrogen production technologies have been researched and developed, among which photocatalytic hydrogen production technology has attracted extensive attention because it can store and utilize solar energy. The technology of hydrogen production by photolysis of water began in 1972. Two professors, Fujishima A and Honda K of the University of Tokyo, Japan, reported for the first time that TiO2 single crystal electrodes photocatalytically decomposed water to generate hydrogen, thus revealing the use of solar ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/12B01J8/02C01B3/04
CPCB01J19/127B01J8/02C01B3/042B01J2219/00144Y02E60/36
Inventor 杨锦渊章晓敏宓霄凌王伊娜
Owner 浙江高晟光热发电技术研究院有限公司
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