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更新時(shí)間：2025.03.23
水電解實(shí)驗(yàn)演示器

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1教具裝置圖（見圖1） 2儀器特點(diǎn)及用途 （1）特點(diǎn)：解決了初中化學(xué)水電解實(shí)驗(yàn)中用簡(jiǎn)易水電解器手會(huì)被10％氫氧化鈉或10％硫酸溶液腐蝕的問題；解決了霍夫曼電解器存在玻璃制品容易破碎、電解速度慢、積氣室過小、學(xué)生進(jìn)行氫氣爆鳴實(shí)驗(yàn)不太安全等問題；還可以讓學(xué)生通過調(diào)整電壓高低和電流大小，了解電解電壓電

電催化苯加氫與水電解耦合反應(yīng)的氣體擴(kuò)散電極研究

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Gas diffusion electrodes are applied to the coupled reaction of water electrolysis and electrocatalytic benzene hydrogenation. The effects of the preparation conditions of electrodes, electrolyte acidity, the concentration of benzene and water vapor, and the flow rate of N2 are investigated by evaluating the efficiency of the current. Furthermore, the optimal operational conditions have been ascertained. The results of our experiment show that gas diffusion electrodes have good performance when the content of PTFE is 10% (wt) and that of Nafion is 0.75mg/cm2. The optimal operational conditions are as follows: The temperature of electrolysis is 70℃, acidity 0.5mol/L, the concentration of benzene 26%,the concentration of vapor 10%, the flow rate of N2 80mL/min-240mL/min. The efficiency of the current can reach 35%under optimal operational conditions. Then, a conclusion can be drawn that gas diffusion electrodes can improve the rate of the coupled reaction effectively.

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