A kind of preparation method of tio2/carbon nanotube/ni optoelectronic active composite electrode

A carbon nanotube, photoelectric active technology, applied in the field of electrodes, can solve the problems of poor contact and the inability to fully play the role of CNTs electron transport.

Active Publication Date: 2018-09-25
EAST CHINA UNIV OF SCI & TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology can realize TiO 2 Composite with CNTs, and form a composite photocatalyst film on the substrate (such as nickel electrode), but there is TiO 2 / CNTs composite film, the CNTs in the composite film and the electrode substrate have shortcomings such as poor contact, and the electron transport function of CNTs between the nickel sheet substrate and the photocatalyst film cannot be fully utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] NiO-TiO 2 Precursor: NiO-TiO prepared by sol-gel method 2 Catalyst precursor. Dissolve 126g citric acid in 220ml absolute ethanol and add 10ml HNO 3 , And then slowly add 68ml of tetrabutyl titanate dropwise, stir for 2h, make it fully complex with citric acid, and obtain mixed solution A. According to NiO in the finished NiO-TiO 2 The molar fraction is 1% in the preparation of Ni(NO 3 ) 2 Solution B is 180ml, and solution B is added dropwise to mixed solution A under vigorous stirring. Continue stirring for 4 hours to fully complex the citric acid with titanium and nickel to obtain NiO-TiO 2 Precursor.

[0033] Pretreatment of the nickel sheet electrode substrate: first polish the nickel sheet with sandpaper to remove the oxides on the surface, and then use 10% NaOH aqueous solution and 30% acetone ethanol solution to ultrasonically clean for 0.5h, and dry at 100°C; the preparation concentration is 0.8 mmol / L Fe(NO 3 ) 3 Alcohol solution; use spin coating method to coat ...

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PUM

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Abstract

The invention relates to a preparation method of a TiO2 / carbon nano-tube (CNT) / Ni photoelectric active combination electrode. A spray pyrolysis chemical vapor deposition method is adopted. CNTs are synchronously grown on the surface of a Ni electrode and the surface of TiO2, so that the CNTs are distributed in a combined active layer of a Ni electrode more uniformly. Meanwhile, CNTs can organically connect TiO2 with a Ni electrode substrate. An unobstructed electron transmission channel is formed between the Ni electrode substrate and a combined photoelectric active film. The photoelectrical catalysis efficiency of the electrode is improved.

Description

Technical field [0001] The invention relates to the technical field of electrodes, specifically, a kind of TiO 2 / Carbon nanotube / Ni photoelectric active composite electrode preparation method. Background technique [0002] Since the 20th century, the demand for energy has continued to grow rapidly, consuming fossil energy such as coal and oil at an ultra-high rate. This not only brings people the threat of energy depletion, but also leads to serious environmental pollution. Finding a new energy that can be used for a long time without causing great pressure on the environment has become an important subject of current scientific research. Hydrogen energy has the advantages of easy storage and transportation, large reserves, low cost, and pollution-free. The development and utilization of new energy sources has become a hot spot for research and development today. [0003] Effective use of hydrogen energy, cheap and efficient hydrogen production is very important. Hydrogen produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/04C25B11/06C02F1/30B01D53/86C23C16/26C23C16/02
CPCB01D53/86C02F1/30C23C16/02C23C16/26C25B1/04C25B1/55C25B11/091Y02E60/36
Inventor 林启志胡旺光李秀春宋晓丽姬婷婷陈爱平
Owner EAST CHINA UNIV OF SCI & TECH
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