标題：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)

來源出版物：JOURNAL OF THE ELECTROCHEMICAL SOCIETY 卷：165 期：11 頁碼:  E572-E577     DOI：10.1149/2.1211811jes       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

文獻類型：Article

語種：English

作者關鍵詞：ALKALI CARBONATES; ELECTROCHEMICAL REDUCTION; ALUMINUM ELECTROLYSIS; BEHAVIOR; CORROSION; CO2; TEMPERATURE; OXYGEN; LIFEO2; ELECTROREDUCTION

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

電子郵件地址：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.

影響因子：3.662