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博士生郑开元的论文在JOURNAL OF THE ELECTROCHEMICAL SOCIETY 刊出
发布时间:2018-09-27 08:24:18     发布者:易真     浏览次数:

标题:Nickel-Iron-Copper Alloy as Inert Anode for Ternary Molten Carbonate Electrolysis at 650 degrees C

作者: Zheng, KY (Zheng, Kaiyuan); Du, KF (Du, Kaifa); Cheng, XH (Cheng, Xinhua); Jiang, R (Jiang, Rui); Deng, BW (Deng, Bowen); Zhu, H (Zhu, Hua); Wang, DH (Wang, Dihua)

来源出版物:JOURNAL OF THE ELECTROCHEMICAL SOCIETY 卷:165 期:11 页码:  E572-E577     DOI10.1149/2.1211811jes       出版年:  SEP 5 2018

摘要:The anodic behavior of Ni11Fe10Cu alloy was investigated in molten Li2CO3-Na2CO3-K2CO3 at 650 degrees C. A conductive oxide scale consisting of NiO-rich inner layer and LiFeO2-rich outer layer is formed on the alloy surface after anodic polarization at 0.25V (vs. Ag2SO4/Ag reference electrode) for 40 h. Further prolonging the polarization time leads to a three layered film with layered LiFeO2, NiO and Cu, respectively. The octahedral LiFeO2 and NiO in a size of several microns build a dense outermost layer, providing high stability and excellent catalytic activity for oxygen evolution. Behind the layer, NiO and Cu-rich layers contribute enough high electronic conductivity and good adhesion of the scale. The electrode shows a lower onset potential for O-2 evolution than Pt and much better catalytic activity for O-2 evolution reaction (OER) than SnO2 anode in the melt. To prove the effectiveness of the anode, cobalt powder with high purity was produced using the electrochemically pre-oxidized Ni11Fe10Cu anode in the ternary carbonate eutectic at 650 degrees C.

入藏号: WOS:000443911700001

文献类型:Article

语种:English

作者关键词:ALKALI CARBONATES; ELECTROCHEMICAL REDUCTION; ALUMINUM ELECTROLYSIS; BEHAVIOR; CORROSION; CO2; TEMPERATURE; OXYGEN; LIFEO2; ELECTROREDUCTION

通讯作者地址:Wang, DH (reprint author), Wuhan Univ, Sch Resource & Environm Sci, Int Cooperat Base Sustainable Utilizat Resources, Wuhan 430072, Hubei, Peoples R China.

电子邮件地址:wangdh@whu.edu.cu

地址:

[Zheng, Kaiyuan; Du, Kaifa; Cheng, Xinhua; Jiang, Rui; Deng, Bowen; Zhu, Hua; Wang, Dihua] Wuhan Univ, Sch Resource & Environm Sci, Int Cooperat Base Sustainable Utilizat Resources, Wuhan 430072, Hubei, Peoples R China.
[Cheng, Xinhua] Hubei Univ Nationalities, Sch Chem & Environm Engn, Enshi 445000, Hubei, Peoples R China.

影响因子:3.662


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