Scholarlink

<p>Ca-Mg co-doped V<sub>2</sub>O<sub>5</sub> films were synthesized via hydrothermal-assisted sol-gel method. Single-doped films (10 mol% Ca or Mg) outperformed undoped V<sub>2</sub>O<sub>5</sub>, with 10Ca-V<sub>2</sub>O<sub>5</sub> exhibiting superior ion storage capacity (102.87 mC/cm<sup>2</sup>) and 10Mg-V<sub>2</sub>O<sub>5</sub> showing better optical modulation (ΔT). Co-doping at fixed 10 mol% total concentration created synergistic effects: Ca expanded the lattice for enhanced Li<sup>+</sup> storage while Mg improved charge transfer kinetics, with their combination yielding optimal porosity for electrolyte penetration. 2Ca-8Mg-V<sub>2</sub>O<sub>5</sub> films demonstrated particularly efficient Li<sup>+</sup> diffusion and fast response (5.3 s coloring/3.7 s bleaching). Response surface methodology optimization revealed heat treatment temperature (346 °C) as the most influential parameter, followed by Ca (2.1 mol%) and Mg (7.8 mol%) contents. The optimized film achieved remarkable performance metrics: 57.4% ΔT, 102.87 mC/cm<sup>2</sup> capacity, and rapid switching, representing a 35% improvement over single-doped counterparts. These results demonstrate how strategic cation co-doping can simultaneously enhance multiple electrochromic properties through complementary structural and electronic modifications.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Application of response surface methodology for optimization of Ca-Mg Co-doped V2O5 Ion storage films by hydrothermal-assisted sol-gel method

  • 期刊论文

  • 发表日期：

    2025年6月2日

查看全文
  • Xiangru Yin,
  • Qiqi Mei,
  • Yinan Zhang,
  • Guixiang Yang,
  • Dequan Zhang,
  • Mingyuan Liu,
  • Runhong Du,
  • Xiaoping Liang

摘要

Ca-Mg co-doped V2O5 films were synthesized via hydrothermal-assisted sol-gel method. Single-doped films (10 mol% Ca or Mg) outperformed undoped V2O5, with 10Ca-V2O5 exhibiting superior ion storage capacity (102.87 mC/cm2) and 10Mg-V2O5 showing better optical modulation (ΔT). Co-doping at fixed 10 mol% total concentration created synergistic effects: Ca expanded the lattice for enhanced Li+ storage while Mg improved charge transfer kinetics, with their combination yielding optimal porosity for electrolyte penetration. 2Ca-8Mg-V2O5 films demonstrated particularly efficient Li+ diffusion and fast response (5.3 s coloring/3.7 s bleaching). Response surface methodology optimization revealed heat treatment temperature (346 °C) as the most influential parameter, followed by Ca (2.1 mol%) and Mg (7.8 mol%) contents. The optimized film achieved remarkable performance metrics: 57.4% ΔT, 102.87 mC/cm2 capacity, and rapid switching, representing a 35% improvement over single-doped counterparts. These results demonstrate how strategic cation co-doping can simultaneously enhance multiple electrochromic properties through complementary structural and electronic modifications.

Graphical Abstract