| VRB电解液的高锰酸钾电位滴定分析 |
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| 引用本文： | 方磊,常芳,李晓兵,何平. VRB电解液的高锰酸钾电位滴定分析[J]. 电池, 2012, 42(1): 54-57 |
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| 作者姓名： | 方磊 常芳 李晓兵 何平 |
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| 作者单位： | 1. 西南科技大学材料科学与工程学院,四川绵阳,621010
2. 中国工程物理研究院电子工程研究所,四川绵阳,621900 |
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| 基金项目： | 四川省第二批应用技术研究与开发项目，四川省教育厅科研项目 |
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| 摘 要： | 分析钒离子的状态及浓度,可检测全钒氧化还原液流电池(VRB)的荷电状态、容量和充放电效率.采用KMnO4(NH4)2Fe(SO4)2体系为滴定剂的电位滴定法来分析钒电解液,可测定电解液中V(Ⅱ)、V(Ⅲ)、V(Ⅳ)和V(Ⅴ)的单一价态、混合价态离子浓度及电解液的总钒浓度.结果表明:测得的各价态钒及总钒的相对标准偏差(N...
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| 关 键 词： | 全钒氧化还原液流电池(VRB) 电位滴定 高锰酸钾(KMnO4) |
Potassium permanganate based potentiometric titration of electrolyte of VRB |
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| FANG Lei , CHANG Fang , LI Xiao-bing , HE Ping. Potassium permanganate based potentiometric titration of electrolyte of VRB[J]. Battery Bimonthly, 2012, 42(1): 54-57 |
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| Authors: | FANG Lei CHANG Fang LI Xiao-bing HE Ping |
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| Affiliation: | 1(1.School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China;2.Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang,Sichuan 621900,China) |
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| Abstract: | The analysis of the state and the concentration of vanadium ions provided an important evidence for determining the state of charged vanadium ions,the capacity of battery and the charge-discharge efficiency.The potentiometric titration method was established to determine the vanadium electrolyte through KMnO4-(NH4)2Fe(SO4)2 system.The proposed method was used to analyze the single and mixed valence state of V(Ⅱ),V(Ⅲ),V(Ⅳ),V(Ⅴ) and total concentration of vanadium ions in electrolyte.The results showed that RSD(N=5) based on the proposed method was no more than 3.67%. |
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| Keywords: | all vanadium redox flow cell(VRB) potentiometric titration potassium permanganate(KMnO4) |
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