富含尿素废水电化学处理的研究  

Study on Electrochemical Treatment of Urea-rich Wastewater

作　　者：吴慧敏[1] 王石泉[1] 宋功武[1] 冯传启[1] Wu Huimin;Wang Shiquan;Song Gongwu;Feng Chuanqi(College of Chemistry ＆ Chemical Engineering,Hubei University,Wuhan 430062,China)

机构地区：[1]湖北大学化学化工学院,湖北武汉430062

出　　处：《广东化工》2018年第18期3-4,共2页Guangdong Chemical Industry

摘　　要：由于氢能源和环境废水处理的需求,使尿素氧化和氢能产生的双功能催化剂的发展成为重大的挑战。本文中合成了双功能催化剂Ni_3N。对尿素氧化,当电流密度为10 mA·cm^(-2)时,电位为1.34 V,Tafel斜率为41 mV dec^(-1)。同时对析氢反应来说,当电流密度为10 mA·cm^(-2),电位为120 mV,Tafel斜率为110 mV dec^(-1)。The development of high-performance bifunctional catalysts for urea oxidation and electrocatalytic hydrogen evolution with more energy-saving electrolytic hydrogen production have become a significant challenge. In this work, nickel nitride on Ni foam （Ni3N/NF） as a high-active bifunctional catalyst was synthesized successfully. A voltage of 1.34 V can be performed to afford 10 mA·cm-2 with Tafel slope of 41 mV dec-1 for urea oxidation reaction. At the same time, only 120 mV is required at a current density of 10 mA·cm-2, with Tafel slope of 110 mV dec-1 for hydrogen evolution reaction.

关 键 词：尿素氧化反应 氢析出反应 尿素废水 电化学处理 

分 类 号：TQ[化学工程]