...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electrochimica Acta >Nanostructured palladium-silver coated nickel foam cathode for magnesium-hydrogen peroxide fuel cells
【24h】

Nanostructured palladium-silver coated nickel foam cathode for magnesium-hydrogen peroxide fuel cells

机译：纳米结构钯银涂层镍泡沫正极，用于过氧化氢氢镁燃料电池

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel multiscale Pd-Ag catalyzed porous cathode for the magnesium-hydrogen peroxide fuel cell was prepared by electrodeposition of Pd onto Ag coated nickel foam surface from an aqueous solution of palladium chloride. The structure, morphology and composition of the electrodeposited catalyst layer were characterized using SEM, EDS and XPS analysis. Magnesium-hydrogen peroxide fuel cell tests with the Pd-Ag deposited cathode were carried out and compared with the Ag-deposited electrode. The effects of temperature, H{sub}2O{sub}2 flow rate and H{sub}2O{sub}2 concentration on cell performance were investigated, and the electrode stability test was carried out. The Pd-Ag deposited electrode showed higher catalytic activity for the reduction of hydrogen peroxide than that of the Ag-deposited Ni foam cathode, and gave much improved fuel cell performance. The magnesium-hydrogen peroxide fuel cell with nanostructured Pd-Ag coated nickel foam cathode presented a maximum power density of 140 mW cm{sup}(-2), but the Mg-H{sub}2O{sub}2 fuel cell with Ag coated Ni foam cathode gave only 110 mW cm{sup}(-2) under the same operation condition.
机译：通过将钯从氯化钯水溶液中电沉积到涂有银的镍泡沫表面上，制得了一种新型的多尺度的Pd-Ag催化的镁-过氧化氢燃料电池多孔阴极。用SEM，EDS和XPS分析表征了电沉积催化剂层的结构，形态和组成。用Pd-Ag沉积的阴极进行了过氧化镁氢燃料电池的测试，并将其与Ag沉积的电极进行了比较。研究了温度，H {sub} 2O {sub} 2流速和H {sub} 2O {sub} 2浓度对电池性能的影响，并进行了电极稳定性测试。 Pd-Ag沉积的电极显示出比过Ag沉积的Ni泡沫阴极更高的还原过氧化氢的催化活性，并大大改善了燃料电池的性能。具有纳米结构的Pd-Ag涂层镍泡沫阴极的过氧化氢氢镁燃料电池的最大功率密度为140 mW cm {sup}（-2），而具有Ag的Mg-H {sub} 2O {sub} 2燃料电池在相同的操作条件下，镀镍泡沫镍阴极仅产生110 mW cm {sup}（-2）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号