Process for preparing TiO2 nanocrystal porous film electrode by low-temp. electrophoresis sedimentation

A technology of titanium dioxide and electrophoretic deposition, which is applied in electrophoretic plating, circuits, electrolytic coatings, etc., can solve problems that affect the stability and repeatability of nanocrystalline porous thin film electrodes, electrodes destroy flexible conductive materials, and flexible conductive materials are not resistant to high temperatures. , to achieve the effect of uniform and controllable deposition film thickness, fast film formation and low cost

Inactive Publication Date: 2007-01-31
INST OF CHEM CHINESE ACAD OF SCI
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AI-Extracted Technical Summary

Problems solved by technology

However, flexible conductive materials are not resistant to high temperatures (≤150°C), and the traditional high-temperature sintering method for preparing electrodes will destroy flexible conductive materials
At the same time, the method...
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Abstract

The invention belongs to the manufacturing technical field of dye sensibilized TiO2 nanocrystalline porous thin film electrode and photo- catalyzed electrode, especially relating to a method for preparing TiO2 nanocrystalline porous thin film electrode at low temperature by electrophoretic deposition, mixing alcohol solution containing Ti salt or not with TiO2 grains, making TiO2 colloidal solution by supersonic diffusion, depositing TiO2 colloidal solution on clean conducting substrate by electrophoretic deposition to make TiO2 thin film electrode; and preparing TiO2 nanocrystalline porous thin film electrode at low temperature by postprocessing. And the preparing method is easy to operate, saving energy sources, low-cost, fast to form film, and especially applied to low temperature preparation of flexible TiO2 nanocrystalline porous thin film electrode.

Application Domain

Technology Topic

Electrophoretic depositionThin film electrode +13

Examples

  • Experimental program(18)

Example Embodiment

[0030] Example 1
[0031] (1) Weigh 0.5g TiO 2 The particles (P25) are put in 10ml n-butanol solution and mixed and stirred for 2 hours and then dispersed by ultrasonic for 30 minutes to make TiO 2 colloid.
[0032] (2) Use two pieces of fluorine-doped SnO 2 Conductive glass (FTO) (Heilongjiang Haake New Energy Co., Ltd., sheet resistance 30Ωcm -2 ) As the electrode substrate, TiO is placed in parallel on the conductive surface 2 In the colloidal solution, the distance is 1cm, and the electrophoretic deposition is 30s. Take out the glass electrode connected to the negative electrode of the power supply, and the deposition film can be seen. Rinse the adhesive liquid on the film with n-butanol solution to obtain TiO 2 Thin film electrode.
[0033] (3) The prepared TiO 2 The thin-film electrode is naturally dried and sintered at a high temperature of 450°C for 30 minutes to obtain the TiO of the present invention 2 Nanocrystalline porous film electrode.

Example Embodiment

[0034] Example 2
[0035] In addition to the TiO in step (1) 2 Except that the particle weight is changed to 0.4g, the other steps and process conditions are the same as in Example 1, to obtain the TiO of the present invention 2 Nanocrystalline porous film electrode.

Example Embodiment

[0036] Example 3
[0037] In addition to the TiO in step (1) 2 Except that the weight of the particles is changed to 0.3g, the other steps and process conditions are the same as in Example 1, to obtain the TiO of the present invention 2 Nanocrystalline porous film electrode.
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PUM

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Description & Claims & Application Information

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