Self-driven water photoelectrolysis system based on friction nano power generator

Abstract

The invention provides a self-driven water photoelectrolysis system based on a friction nano power generator. The system comprises a friction nano power generator for converting external mechanical energy into electric energy, a transformer for converting high voltage electricity generated by the friction nano power generator into low voltage electricity, a rectifier for converting alternating current after transformation by the transformer into direct current, and a water photoelectrolysis device connected with the rectifier and used for generating hydrogen by the action of illumination and the direct current. The system achieves an unexpected technical effect through a relatively simple structure, and the hydrogen generation efficiency of the system is extremely high. In addition, iron oxide is modified by titanium, so that the defect of poor conductivity of iron oxide is overcome; and the efficiency of converting light energy to chemical energy is greatly improved. A method of preparing titanium modified iron oxide is simple in process and easy to operate. A selected semiconductor photocatalysis material, namely iron oxide, is high in light absorptivity and stability and low incost.

Description

technical field [0001] The invention relates to the technical field of photoelectric water splitting, in particular to a self-driven photoelectric water splitting system based on a triboelectric nanogenerator. Background technique [0002] Among many clean energy sources, hydrogen energy is favored as an energy source with high calorific value and non-polluting combustion products, and has become one of the ideal energy sources to replace traditional fossil energy sources. However, traditional hydrogen production methods are costly and pollute the environment, urging researchers to seek new environmentally friendly hydrogen production methods. Since Professor Fujishima and Honda realized photoelectric hydrogen production on titanium dioxide electrodes, research on photoelectrochemical cells based on various photocatalytic semiconductor materials has sprung up. And because solar energy is a clean, non-polluting, inexhaustible energy source, and water resources are widely dis...

AI Technical Summary

Problems solved by technology

[0004] The inventors of the present application found that the advantage of the triboelectric nanogenerator that can convert external mechanical energy into electrical energy can be used to solve the problem that photocatalytic semiconductor materials in photoelectrolyzed water need to apply an additional electric field to achieve the purpose of fully splitting water

Images