| Summary: | 碩士 === 國立中央大學 === 化學工程與材料工程學系 === 102 === Hydrogen is a clean and green energy, and it has high energy density. Recently, the price of oil becomes higher and higher, so many countries hope fossil energy will be in place of hydrogen energy because of water only after burning. Water electrolysis is one of ripe skills for hydrogen evolution but it consumes a lot of electric energy. Therfore, how to rise the efficiency of water electrolysis is an important issue nowadays.
There are many ways of rising the efficency. In this study, we prepare the electrodes using by stainless steel mesh and the porous structure of nickel substrate resulting from PS paricles to increase the surface area of electrodes. Then, we compare the efficiency between the two ways.
In this study, we have two parts of experiment. The first part, we use stainless steel mesh as substrate, and co-deposite nickel(Ni), colbalt(Co) and nickel, iron(Fe) on substrates respectively, then sintering in 5% hydrogen enviroment. The second part, we use spin coating to coat PS particles on nickel substrate, and burning in the air, and then sintering in 5% hydrogen enviroment. We do materials analyzing by SEM and XRD, and electrochemical analyzing, and hydrogen evolution.
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