发泡镍电极电化学还原嘌呤中间体

CORC > 厦门大学 > 2005年第11卷

	发泡镍电极电化学还原嘌呤中间体; Application of Nickel foam Electrode for Electroreduction Intermediate of Purine
	杨会文 ; 胡熙恩 ; 王学军 ; YANG Hui-wen~ ; HU Xi-en ; WANG Xue-jun
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8930.shtml
	2005-05-28
关键词	发泡镍三维电极电化学还原嘌呤 Nickel foam Three-dimensional electrode Electroreduction Filter-press reactor Intermediate Purine
英文摘要	由三维发泡镍电极H2SO4电解质和阳离子交换膜,组成隔膜式三维发泡镍电解循环装置.利用该装置将3-甲基-4-亚氨基-5-异亚硝基脲嗪(NAU)电还原为3-甲基-4,5-二氨基脲嗪(DAU).比较发泡镍阴极的电流密度,测定不同pH条件下的反应电位.结果表明,发泡镍电极的电流密度比平板镍高77.3%～86.7%,电流效率平均90.3%,NAU还原转化率平均98.4%,电还原能耗平均2.92kWh/kg.恒电流电还原过程出现峰电位,继续延长电还原时间则有副反应产生.分别以传统铁粉还原和电还原的DAU完成下游嘌呤产品的合成,证明电还原产品收率不低于铁粉还原.; Nickel foam with weight uniformity, good porosity ,pore size and low resistivity as a three-dimensional cathode was used in a filter-press electrochemical reactor. The H_(2)SO_(4) as supporting electrolyte, separator of cation ion exchange membrane, and the lead plate as an anode were used. The cyclic system consisted of electroreduction reactor, pump, store tank and ampere meter. NAU was electroreduced in the cathode chamber of the reactor. Purine intermediate was synthesized with DAU, and the results were compared with those of iron powder reduction process. A peak current in the electroreduction process was detected. The current density of nickel foam increased by 77.3%~86.7% than that of using plate nickel. The average current efficiency was 90.3% and average conversion of NAU was 98.4% , and average energy consumed was 2.92 kWh/kg, respectively. The Purine yield of electroreduction was similar to that of using iron powder.; 作者联系地址：清华大学核能技术设计研究院,清华大学核能技术设计研究院,清华大学核能技术设计研究院北京102201 ,北京102201 ,北京102201; Author's Address: Institute of Nuclear Energy Technology, Tsinghua University,Beijing 102201,China
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/57913]
专题	2005年第11卷
推荐引用方式 GB/T 7714	杨会文,胡熙恩,王学军,等. 发泡镍电极电化学还原嘌呤中间体, Application of Nickel foam Electrode for Electroreduction Intermediate of Purine[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8930.shtml,2005.
APA	杨会文,胡熙恩,王学军,YANG Hui-wen~,HU Xi-en,&WANG Xue-jun.(2005).发泡镍电极电化学还原嘌呤中间体.http://electrochem.xmu.edu.cn/CN/abstract/abstract8930.shtml.
MLA	杨会文,et al."发泡镍电极电化学还原嘌呤中间体".http://electrochem.xmu.edu.cn/CN/abstract/abstract8930.shtml (2005).