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dc.contributor.author孙冬柏zh_CN
dc.contributor.authorSun Dongbaizh_CN
dc.contributor.author金莹zh_CN
dc.contributor.authorJin Yingzh_CN
dc.contributor.author俞宏英zh_CN
dc.contributor.authorYu Hongying
dc.contributor.author杨德钧
dc.contributor.authorYang Dejun
dc.date.accessioned2013-11-18T07:44:25Z
dc.date.available2013-11-18T07:44:25Z
dc.date.issued1999-02-28zh_CN
dc.identifier.citation电化学,1999,5(01):36-42.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/57480
dc.description.abstract对次磷酸盐体系循环伏安曲线-0.4V(SCE)处氧化峰(Ⅱ峰)的特性及本质进行深入研究.结果表明,Ⅱ峰与Ⅰ峰直接相关,对应于活性吸附态的偏亚磷酸根氧化生成磷酸根的电极过程,Ⅱ峰是偏亚磷酸根脱出的H-ads离子在电极上发生氧化的结果.确定了吸附态偏亚磷酸根转变为惰性亚磷酸根反应的控速步骤为偏亚磷酸的脱附过程,并估算了脱附速度常数.最后给出可能的吸附态偏磷酸根氧化生成磷酸根的电极历程及总的次磷酸根氧化机制模型.zh_CN
dc.description.abstractThere exist two oxidation current peaks on the anodic polarization curve between -0.7 V and 0 V(SCE) in Na_hypophosphite solution. Peak Ⅰ (-0.55 V, SCE) , which represents the oxidation process from H 2PO - 2 to H 2PO - 3, has been studied previously. Peak Ⅱ, which is located at the potential about -0.4 V(SCE), is investigated emphatically in this paper. The results show that, peak Ⅰ and Ⅱ are corresponding to two successive steps in oxidation process of H 2PO - 2, i.e. peak Ⅱ corresponds to the oxidation process of adsorped (HPO 2) ads , an intermediate product of electrode reaction of peak Ⅰ, to PO 3- 4. The rate limiting step in the electrode process from (HPO 2) ads to HPO 2- 3 is the desorption of (HPO 2) ads , and the desorption rate constant is estimated as 2.32±0.20 s -1 . A new schematic of oxidation process of hypophosphite is proposed.zh_CN
dc.language.isozhzh_CN
dc.publisher厦门大学《电化学》编辑部zh_CN
dc.relation.ispartofseries研究论文zh_CN
dc.relation.ispartofseriesArticleszh_CN
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract9443.shtmlzh_CN
dc.subject次磷酸盐zh_CN
dc.subject氧化zh_CN
dc.subject循环伏安法zh_CN
dc.subjectHypophosphitezh_CN
dc.subjectOxidationzh_CN
dc.subjectCyclic voltammetry Referenceszh_CN
dc.title次磷酸盐氧化反应历程的研究zh_CN
dc.title.alternativeOxidation Mechanism of Hypophosphitezh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:UNDP/国家科委—北京腐蚀与防护中心冶金部腐蚀、磨蚀及表面技术开放实验室北京科技大学zh_CN
dc.description.noteAuthor's Address: UNDP Beijing Corrosion and Protection Center, University of Science and Technology Beijing 100083zh_CN


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