A new cathode using CeO2/MWNT for hydrogen peroxide synthesis through a fuel cell
来源期刊：Journal of Rare Earths2009年第1期
论文作者：徐夫元 宋天顺 徐源 陈英文 祝社民 沈树宝
文章页码：128 - 133
摘 要：Catalyst using CeO2/MWNT（multi-walled carbon nanotube） was prepared by chemical deposition method and was applied to prepare the cathode of fuel cell for hydrogen peroxide synthesis.Effect of catalyst loading, flow rate of aqueous solution, and KOH concentration on hydrogen peroxide synthesis were investigated.Experimental results indicated that hydrogen peroxide concentration approached 275 mmol/L given 25% of CeO2/MWNT, 18 ml/h of aqueous solution, and 5 mol/L of KOH concentration.Moreover, the reaction mechanism was further discussed.The results indicated that MWNT and cerium oxide were the synergism to produce hydrogen peroxide.Increase of KOH concentration not only reduced the apparent cell resistance but also increased the open-circuit voltage.
徐夫元1，宋天顺1，徐源1，陈英文1，祝社民2，沈树宝1
1. National Engineering Research Centre for Biochemistry Nanjing University of Technology2. College of Materials Science and Engineering, Nanjing University of Technology
摘 要：Catalyst using CeO2/MWNT（multi-walled carbon nanotube） was prepared by chemical deposition method and was applied to prepare the cathode of fuel cell for hydrogen peroxide synthesis.Effect of catalyst loading, flow rate of aqueous solution, and KOH concentration on hydrogen peroxide synthesis were investigated.Experimental results indicated that hydrogen peroxide concentration approached 275 mmol/L given 25% of CeO2/MWNT, 18 ml/h of aqueous solution, and 5 mol/L of KOH concentration.Moreover, the reaction mechanism was further discussed.The results indicated that MWNT and cerium oxide were the synergism to produce hydrogen peroxide.Increase of KOH concentration not only reduced the apparent cell resistance but also increased the open-circuit voltage.
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