Emissions from fossil fuels significantly diminish air quality and the greenhouse gasses they release are a leading factor in global warming. Direct solar energy has not proven reliable to replace fossil fuels because the sun is not always out.
Solar produced hydrogen is a storable, sustainable, green energy solution. The light which is coming from the sun can provide the energy needed to separate water into hydrogen and oxygen.
The purpose of this project was to build a photoelectrochemical (PEC) cell that uses visible light, dye-sensitized TiO(2) and Fe(2)O(3) to convert water into hydrogen and oxygen and to illustrate the procedure of PEC cells can be utilized as an alternative energy resource.
Methods and Materials
- A bicameral PEC cell was designed with associate degree acrylic substitute.
- Nanocrystalline TiO(2) was dye-sensitized with anthocyanin obtained from blackberries.
- Dye-sensitized TiO(2) and Fe(2)O(3) were bonded to conductive glass plates and placed in chambers filled with distilled water and electrolyte solution respectively.
- A platinum wire was inserted into the H2O and connected to the opposite chamber.
- The PEC cell was exposed to light; voltage, electric current and water displacement were recorded at set time intervals.
- The process was modified and repeated seven times.
- We try the step 1 and 2 it shows no current or hydrogen bubbles.
- With a stronger electrolyte solution, trial 3 gave a measurement of 0.01mA and several bubbles after 2 hours.
- In trial 7, with added oxide surface areas and a boost of 12 volts for 2 hours, the reading of the PEC cell was 2mA.
- The bubbles created by the cell displaced 1ml of water. it had been incontestable that this gas contained gas by igniting it with a flame.
Voltage is being generated by using this precise PEC cellular was not terrific enough to split beneficial quantities of hydrogen however large oxide plates might growth hydrogen production. PEC cells could be utilized in mixture with preferred solar cells to provide extra voltage to the system. When located on rooftops or grouped in solar farms, PEC cells could help update carbon fuels with cost-efficient hydrogen.
This task proved that anthocyanin dye-sensitized titanium dioxide might be employed in a photoelectrochemical cell with hematite and platinum cord to split water into hydrogen and oxygen the use of visible light.
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