| Al-Ga-Mn-Ca-Cu合金电极碱性体系电化学性能 |
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| 引用本文： | 李影,俞小花,杨亚刚,史春阳,屈亚松,李荣兴,谢刚.Al-Ga-Mn-Ca-Cu合金电极碱性体系电化学性能[J].有色金属工程,2020(12):62-68. |
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| 作者姓名： | 李影 俞小花 杨亚刚 史春阳 屈亚松 李荣兴 谢刚 |
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| 作者单位： | 昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院 |
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| 基金项目： | 国家自然科学基金资助项目（51774160）；云南省万人计划项目（YNWR-QNBJ-2018-327） |
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| 摘 要： | 通过熔铸、压延、退火等一系列工艺制作了新型Al-0.017Ga-0.885Mn-0.038Ca-0.048Cu (wt.%)阳极合金，并通过了EIS、极化曲线分析研究了其在不同浓度NaOH溶液中的腐蚀行为和电化学性能。结果表明，随着NaOH浓度的增加，合金阳极的自腐蚀速率在逐渐增加，Al-0.017Ga-0.885Mn-0.038Ca-0.048Cu合金在4mol/LNaOH溶液中的腐蚀速率增长速度明显降低，放电电压在电流密度为120mA/cm2下仍能维持在1 V左右，阳极能量密度也最高，达6.056kW?h/kg，更适合不同电流密度下的连续恒流放电。且合金的恒流放电和EIS结果与腐蚀特性吻合较好。
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| 关 键 词： | 合金阳极 碱液浓度 电化学性能 EIS |
| 收稿时间： | 2020/6/2 0:00:00 |
| 修稿时间： | 2020/6/22 0:00:00 |
Electrochemical Properties of Al-Ga-Mn-Ca-Cu Alloy Electrode Alkaline System |
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| LI Y,YU XH,YANG YG,SHI CY,QU YS,LI RX and XIE G.Electrochemical Properties of Al-Ga-Mn-Ca-Cu Alloy Electrode Alkaline System[J].Nonferrous Metals Engineering,2020(12):62-68. |
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| Authors: | LI Y YU XH YANG YG SHI CY QU YS LI RX and XIE G |
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| Affiliation: | Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan,Faculty of metallurgy and energy engineering,Kunming University of Science and Technology,Kunming,Yunnan |
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| Abstract: | In this paper, a new type of Al-0.017Ga-0.885Mn-0.038Ca-0.048Cu (wt.%) anode alloy was fabricated through a series of processes including casting, calendering, and annealing. EIS and polarization curve analysis were conducted to study its corrosion behavior and electrochemical performance in different concentrations of NaOH solution.The results show that with the increase of NaOH concentration, the self-corrosion rate of the alloy anode is gradually increasing, and the corrosion rate of Al-0.017Ga-0.885Mn-0.038Ca-0.048Cu alloy in 4mol/L NaOH solution is significantly reduced.The discharge voltage can still be maintained at about 1 V at a current density of 120 mA/cm2,and the anode energy density is also the highest, reaching 6.056kW?h/kg, which is more suitable for continuous constant current discharge at different current densities. Moreover, the constant current discharge and EIS results of the alloy are in good agreement with the corrosion characteristics. |
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| Keywords: | alloy anode lye concentration electrochemical performance EIS |
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