Scholarlink

<p>Effect of molybdenum doping on stabilization of cubic phase, chemical stability and protonic conductivity of barium indate (Ba<sub>2</sub>In<sub>2</sub>O<sub>5</sub>) has been investigated in this work. Partial substitution of molybdenum for indium, Ba<sub>2</sub>In<sub>2-x</sub>Mo<sub>x</sub>O<sub>5+δ</sub> (x = 0.1 to 0.6 and δ = 1.5x), has resulted in stabilization of the Ba<sub>2</sub>In<sub>2</sub>O<sub>5</sub> cubic phase for x = 0.3 and 0.4 compositions. Considering its application as a proton conductor, thermogravimetric experiments have been carried out for moisture pickup evaluation both from stability and protonic conductivity point of view. All of the compositions exhibit an uptake of water below 673&#xa0;K and also reveal an increase in conductivity with the extent of doping. It is also revealed from the conductivity measurement that activation energy is lowered below 773&#xa0;K as compared to higher temperature in moist atmosphere which indicated proton conductivity around these temperatures.</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

Molybdenum-substituted Ba2In2O5 as proton conducting electrolyte: structure, water absorption and conductivity

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月16日

查看全文
  • A. N. Shirsat,
  • D. Tyagi,
  • S. B. Phapale,
  • K. Bhattacharyya,
  • S. Varma

摘要

Effect of molybdenum doping on stabilization of cubic phase, chemical stability and protonic conductivity of barium indate (Ba2In2O5) has been investigated in this work. Partial substitution of molybdenum for indium, Ba2In2-xMoxO5+δ (x = 0.1 to 0.6 and δ = 1.5x), has resulted in stabilization of the Ba2In2O5 cubic phase for x = 0.3 and 0.4 compositions. Considering its application as a proton conductor, thermogravimetric experiments have been carried out for moisture pickup evaluation both from stability and protonic conductivity point of view. All of the compositions exhibit an uptake of water below 673 K and also reveal an increase in conductivity with the extent of doping. It is also revealed from the conductivity measurement that activation energy is lowered below 773 K as compared to higher temperature in moist atmosphere which indicated proton conductivity around these temperatures.

Graphical abstract