Use sulfur dioxide and solar energy to comprehensively produce hydrogen energy conversion method: hydrogen ions on the Pt electrode gain electrons to generate hydrogen gas, and a reaction of reduction occurs, which is the positive electrode. The BiVO4 electrode is the negative electrode, SO32- loses electrons to generate sulfate radicals and an oxidation reaction occurs. Systems that use solar energy to produce hydrogen include photodecomposition hydrogen production, solar power generation, and combined water electrolysis hydrogen production systems.
Scientists have discovered a relatively ideal method for producing hydrogen. Under the catalysis of titanium dioxide, solar energy is used to decompose seawater to produce hydrogen.
Systems that use solar energy to produce hydrogen. include photolysis hydrogen production, solar power generation and water electrolysis combined hydrogen production system. Research on solar hydrogen production mainly focuses on the following technologies: thermochemical hydrogen production, photoelectrochemical hydrogen production, photocatalytic hydrogen production, artificial photosynthesis hydrogen production, and biological hydrogen production. Direct solar thermal decomposition of water to produce hydrogen is the simplest method.
Hydrogen and oxygen generate water under igniting conditions. They have the advantages of high calorific value and no pollution, and are considered the most ideal. clean energy source; The principle of using solar energy to decompose seawater to produce hydrogen is: water generates hydrogenand oxygen under the action of catalysts and calcium hydride and water generate calcium hydroxide and hydrogen, which can be balanced; is: the combustion product is water; 2H2+ O2
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2H2O
TiO2
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< p >Solar energy2H2↑+O2↑; CaH2+2H2O=Ca(OH)2+2H2