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Nanotube array fuel battery of visible light response

A nanotube array and fuel cell technology, which is applied in the fields of pollution control and new energy utilization, can solve the problems of nanoparticle shedding, high photogenerated charge recombination, short electrode service life, etc., and achieves the effect of good visible light response performance.

Inactive Publication Date: 2012-01-04
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the photogenerated charge recombination of this material is relatively high, and TiO 2 Nanoparticles are easy to fall off from the substrate, the electrode has a short service life, and can only respond to short-wavelength ultraviolet light and cannot respond to visible light

Method used

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  • Nanotube array fuel battery of visible light response
  • Nanotube array fuel battery of visible light response
  • Nanotube array fuel battery of visible light response

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The cleaned metal titanium is used as the anode, placed in an aqueous solution containing 0.5% hydrofluoric acid, the platinum electrode is used as the counter electrode, and the voltage is adjusted to 20 V. After anodizing for 30 min, a titanium-based titanium oxide nanotube array material composed of metal titanium and titanium oxide on the titanium surface was obtained. Then the titanium-based titania nanotube array material is subjected to 450 ° After sintering at high temperature for 3 hours, TiO with anatase phase can be obtained 2 Nanotube array thin film materials.

[0029] TiO 2 The nanotube array film electrode is used as the cathode, and the platinum sheet is used as the anode. 2 and 0.1 M elemental sulfur in dimethyl sulfoxide solution, apply a bias voltage of 0.44 V, electrodeposit for 10 min, and use ultrasonic continuous ultrasonic in the whole process to obtain CdS / TiO 2 Nanotube array composite electrodes.

[0030] After testing three kinds of phot...

Embodiment 2

[0035] With the TiO that makes in embodiment 1 2 The nanotube array film electrode was used as the anode, Pt was used as the counter electrode, and Ag / AgCl was used as the reference electrode. A bias voltage of -0.25 V was applied in an electrolyte solution containing 0.1 M sodium acetate and 0.02 M copper acetate. The deposition process lasted for 5 min. The process uses ultrasonic continuous ultrasound to obtain Cu 2 O / TiO 2 Nanotube array composite electrodes.

[0036] Take Cu 2 O / TiO 2 The nanotube array composite electrode is a photoanode 1 , and the platinum sheet coated with platinum black is a cathode 2 . Insert the cathode and anode into the phenol (0.05 M) solution containing 0.5 M sodium sulfate respectively, and connect them through the external circuit 3. Turn on the simulated sun light source (the light intensity is 100 mW cm -2 ) irradiates the photoanode, and continues to pass air near the cathode. At this time, phenol is oxidized near the photoanode, and...

Embodiment 3

[0038] With the TiO that makes in embodiment 1 2 The nanotube array film electrode is used as the cathode, and the platinum sheet is used as the anode. 2 and 0.1 M elemental sulfur in dimethyl sulfoxide solution, apply a bias voltage of 0.44 V, electrodeposit for 10 min, and use ultrasonic continuous ultrasonic during the whole process to obtain CdS / TiO 2 Nanotube array composite electrodes.

[0039] With CdS / TiO 2 The nanotube array composite electrode is a photoanode 1, and the platinum sheet coated with platinum black is a cathode 2. Insert the cathode and anode into the acetic acid (0.3 mM) solution containing 0.25 M sodium sulfate, respectively, and connect them through the external circuit 3. The photoanode 1 is irradiated with natural sunlight, and air is continuously introduced near the cathode 2. At this time, the acetic acid is oxidized near the photoanode, and the electrons generated are transferred to the cathode through an external circuit load, and the oxygen ...

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Abstract

The invention discloses a nanotube array fuel battery of visible light response, which comprises a photoanode, a cathode, organic waste water, a light source, an electrolyte and a quartz reaction pool, wherein the cathode and the photoanode are respectively inserted into the organic waste water containing the electrolyte and is communicated through an external circuit; the photoanode is an electrode made from a TiO2 nanotube array film with visible light response; the light source is started for irradiating the photoanode; air is continuously introduced near the cathode; at this time, organic matter is oxidized near the photoanode; and generated electrons are transferred to the cathode through loads of the external circuit and are reduced by oxygen near the cathode. According to the invention, the purposes of treating the organic waste water and externally generating power are achieved; and the nanotube array fuel battery has higher battery performance and wider application prospect compared with the prior art.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a nanotube array fuel cell responding to visible light, and belongs to the fields of pollution control and new energy utilization. Background technique [0002] In recent years, with the rapid increase of population and the rapid development of industry, a large amount of toxic and harmful industrial wastewater and domestic sewage have been discharged into water bodies, causing serious environmental pollution and ecological damage. At the same time, organic matter in wastewater is also an important source of energy. Therefore, how to treat wastewater quickly and recover energy efficiently has become a very meaningful research topic. [0003] Based on the principle of primary batteries, organic matter in wastewater is used as a substrate, and a battery system is designed to convert the chemical energy of organic matter into electrical energy, which can not only realize the treatment of organic matt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88
CPCY02E60/50
Inventor 周保学刘艳彪陈全鹏李雪瑾蔡伟民
Owner SHANGHAI JIAO TONG UNIV
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