Optimization via response surface methodology for Ni-La-V2O5 porous ion-storage film by sol–gel method

IF 3.2 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Sol-Gel Science and Technology Pub Date : 2025-05-18 DOI:10.1007/s10971-025-06760-2

Xueli Zhu, Xiangru Yin, Yinan Zhang, Qiqi Mei, Jinshuo Bai, Guixiang Yang, Dequan Zhang, Xiaoping Liang

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Abstract

V₂O₅ films with high ion storage capacity (Q) and wide optical modulation range (∆T) have great potential for application in electrochromic devices. In this paper, Ni-La-V₂O₅ porous ion storage films are prepared by the sol–gel method. The effects of Ni-La co-doping content, PEG content, and heat treatment temperature on the properties of V₂O₅ films were investigated. By comparison, it was found that the Q value of 9 mol% Ni-5.5 mol% La-V₂O₅ film was increased compared to 9 mol% Ni-V₂O₅ film, but ∆T was decreased. In order to improve ∆T, Ni-La-V₂O₅ porous ion storage films were prepared using Ni-La co-doping and PEG pore-former, and the optimization of process parameters was carried out via Response Surface Methodology (RSM). The RSM results showed that the influence on the Q value was in the following order: heat treatment temperature > Ni-La co-doping content > PEG content. Under the near-optimal process parameters, a satisfying V₂O₅ film with a high Q value (120.23 mC/cm²), a good ∆T (79.8%), and a short response time (3.1 s/2.8 s) were obtained, which further demonstrated the superior electrochromic performance.

Graphical Abstract

Abstract Image

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响应面法优化溶胶-凝胶法制备Ni-La-V2O5多孔离子存储膜

具有高离子存储容量(Q)和宽光调制范围（∆T）的V2O5薄膜在电致变色器件中具有很大的应用潜力。本文采用溶胶-凝胶法制备了Ni-La-V2O5多孔离子存储膜。研究了Ni-La共掺杂量、PEG含量和热处理温度对V2O5薄膜性能的影响。通过对比发现，与9 mol% Ni-V2O5膜相比，9 mol% Ni-5.5 mol% La-V2O5膜的Q值有所提高，但∆T有所降低。为了改善∆T，采用Ni-La共掺杂和PEG成孔剂制备了Ni-La- v2o5多孔离子存储膜，并通过响应面法（RSM）对工艺参数进行了优化。RSM结果表明，对Q值的影响顺序为：热处理温度>； Ni-La共掺杂含量>； PEG含量。在接近最优的工艺参数下，获得了高Q值（120.23 mC/cm2）、良好的∆T（79.8%）和较短的响应时间（3.1 s/2.8 s）的V2O5薄膜，进一步证明了优越的电致变色性能。图形抽象

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.