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首页> 外文期刊>Journal of Molecular Liquids >Ionic liquid and nanoparticle based magnetic electrolytes: Design, preparation, and electrochemical stability characterization
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Ionic liquid and nanoparticle based magnetic electrolytes: Design, preparation, and electrochemical stability characterization

机译：基于离子液体和纳米粒子的磁性电解质：设计，制备和电化学稳定性表征

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In this work, ionic liquid (IL) and nanoparticle (NP) based magnetic electrolytes are developed for the first time. The electrochemical stability of electrolyte is a crucial property for utilization in solar cells and batteries. The electrochemical stability behavior of the samples of pure ILs, ILs + NPs, ILs + NPs + iodide redox (I-3(-)/I-), and ILs + H2O is investigated. It is shown that there is no significant electrochemical reaction in the pure ILs sample when direct current (DC) voltage ranging from 2 V to 40 V is applied. The results suggest that pure lLs have good electrochemical stability as electrolytes under DC voltage as high as 40 V. NPs are utilized in order to improve the performance of ILs as electrolytes. It is found that the presence of NPs does not influence the electrochemical stability of the electrolytes under the DC electrical field. Moreover, I-3(-)/I- is added to form samples of ILs + NPs + I-3(-)/I3-I t is shown that the presence of I-3(-)/I- reduces the electrochemical stability of most of the IL + NP + electrolytes utilized in this work. The presence of water can also reduce the electrochemical stability of the IL based electrolytes. Furthermore, the effect of a magnetic field on the NP concentration gradient in the samples of ILs + NPs and ILs + NPs + I-3(-)/I- is investigated. It is shown that there is a NP concentration gradient in the samples when an external magnetic field is applied. This discovery is useful when utilizing the IL and NP based magnetic electrolytes in solar cells and batteries. Finally, electrodes of the samples of BmimPF(6) + Fe2O3 NPs, and BmimPF(6) + Fe2O3 NPs + I-3(-)/I- after electrophoresis deposition experiments are compared. The findings in this work can enhance the development of utilization of IL and NP based magnetic electrolytes in solar cells and batteries. (C) 2015 Elsevier B.V. All rights reserved.
机译：在这项工作中，首次开发了基于离子液体（IL）和纳米颗粒（NP）的磁性电解质。电解质的电化学稳定性是用于太阳能电池和电池的关键性能。研究了纯ILs，ILs + NPs，ILs + NPs +碘化物氧化还原（I-3（-）/ I-）和ILs + H2O样品的电化学稳定性行为。结果表明，当施加2 V至40 V的直流（DC）电压时，纯ILs样品中没有明显的电化学反应。结果表明，纯lLs在高达40 V的直流电压下作为电解质具有良好的电化学稳定性。为了提高ILs作为电解质的性能，使用了NPs。已经发现，在直流电场下，NP的存在不影响电解质的电化学稳定性。此外，添加I-3（-）/ I-以形成ILs + NPs + I-3（-）/ I3-I t的样品，显示I-3（-）/ I-的存在会降低电化学反应这项工作中使用的大多数IL + NP +电解质的稳定性。水的存在还可以降低基于IL的电解质的电化学稳定性。此外，研究了磁场对ILs + NPs和ILs + NPs + I-3（-）/ I-样品中NP浓度梯度的影响。结果表明，施加外部磁场时样品中存在NP浓度梯度。当在太阳能电池和电池中利用基于IL和NP的磁性电解质时，此发现很有用。最后，比较了电泳沉积实验后BmimPF（6）+ Fe2O3 NPs和BmimPF（6）+ Fe2O3 NPs + I-3（-）/ I-的样品电极。这项工作的发现可以促进基于IL和NP的磁性电解质在太阳能电池和电池中的利用发展。 （C）2015 Elsevier B.V.保留所有权利。

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