某些离子对Cr_2O_7~(2-)阳极形成过程的影响; The EHect of Some Ions on Anodic Formation Process at Pt and PbO_2 Electrodes | |
金世雄 ; 周志刚 ; 王岚 ; Jin Shixiong ; Zhou Zhigang ; Wang Lan | |
刊名 | http://electrochem.xmu.edu.cn/CN/abstract/abstract9769.shtml
![]() |
1995-02-28 | |
关键词 | Platinum electrode Lead dioxide electrode Anodic formation of Cr_2O ion Anodic evolution of oxygen |
英文摘要 | 某些离子对Cr_2O_7~(2-)阳极形成过程的影响金世雄,周志刚,王岚(南开大学化学系,天津300071)Cr(Ⅲ)阳极氧化为Cr(Ⅵ)是工业制取铬酸及其盐类的主要方法,也是从含铬工业废水中回收Cr(Ⅵ)的主要途径.文献 ̄[1]曾表明,Cr(Ⅲ)的阳?..; The influence of Ag_2SO_4,Li_2SO_4,Na_2SO_4,K_2SO_4,NH_4)_2SO_4,MgSO_4 and KF onthe evolution of O_2 and the formation of Cr_2O at Pt and PbO_2 anodes was investigated in mixedH_2SO_4-Cr_2(SO_2)_3 solutions.The kinetic data related respectively to Cr_2O formation and O_2 evolutionat Pt and PbO_2 anodes were measured by method of resolving the steady-state polarization curve.TheTafel slope of steady-state ~1g i relationships for Cr_2O formation reaction is close to 2×2. 303RT/βF,whereas for O_2 evolution it is close to 2.303 RT/βF(with β=0.5). The results indicate thatthe current efficiency for Cr_2O formation is increased by adding Ag ̄+ ions to the anolyte and decreasedby adding Li ̄+,Na ̄+,K ̄+,NH and Mg ̄(2+) ions to the anolyte at Pt electrode.While on PbO_2 electrode,the current efficiency of Cr_2O formation is decreased by adding Ag ̄+ and F ̄- ions to the anolyte andincreased by adding K ̄+ ions to the anolyte.; 作者联系地址:南开大学化学系; Author's Address: Department of Chemistry,Nankai University,Tianjin 300071 |
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/2288/57194] ![]() |
专题 | 1995年第1卷 |
推荐引用方式 GB/T 7714 | 金世雄,周志刚,王岚,等. 某些离子对Cr_2O_7~(2-)阳极形成过程的影响, The EHect of Some Ions on Anodic Formation Process at Pt and PbO_2 Electrodes[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract9769.shtml,1995. |
APA | 金世雄,周志刚,王岚,Jin Shixiong,Zhou Zhigang,&Wang Lan.(1995).某些离子对Cr_2O_7~(2-)阳极形成过程的影响.http://electrochem.xmu.edu.cn/CN/abstract/abstract9769.shtml. |
MLA | 金世雄,et al."某些离子对Cr_2O_7~(2-)阳极形成过程的影响".http://electrochem.xmu.edu.cn/CN/abstract/abstract9769.shtml (1995). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论