• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Effective Construction of High-quality Iron Oxy-hydroxides and Co-doped Iron Oxy-hydroxides Nanostructures: Towards the Promising Oxygen Evolution Reaction Application
【2h】

Effective Construction of High-quality Iron Oxy-hydroxides and Co-doped Iron Oxy-hydroxides Nanostructures: Towards the Promising Oxygen Evolution Reaction Application

机译：有效构建高质量的羟基氧化铁和共掺杂的羟基氧化铁纳米结构：朝着有希望的氧气析出反应应用

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rational design of high efficient and low cost electrocatalysts for oxygen evolution reaction (OER) plays an important role in water splitting. Herein, a general gelatin-assisted wet chemistry method is employed to fabricate well-defined iron oxy-hydroxides and transitional metal doped iron oxyhydroxides nanomaterials, which show good catalytic performances for OER. Specifically, the Co-doped iron oxy-hydroxides (Co0.54Fe0.46OOH) show the excellent electrocatalytic performance for OER with an onset potential of 1.52 V, tafel slope of 47 mV/dec and outstanding stability. The ultrahigh oxygen evolution activity and strong durability, with superior performance in comparison to the pure iron oxyhydroxide (FeOOH) catalysts, originate from the branch structure of Co0.54Fe0.46OOH on its surface so as to provide many active edge sites, enhanced mass/ charge transport capability, easy release oxygen gas bubbles, and strong structural stability, which are advantageous for OER. Meanwhile, Co-doping in FeOOH nanostructures constitutes a desirable four-electron pathway for reversible oxygen evolution and reduction, which is potentially useful for rechargeable metal-air batteries, regenerative fuel cells, and other important clean energy devices. This work may provide a new insight into constructing the promising water oxidation catalysts for practical clean energy application.
机译：合理设计的高效，低成本的氧气析出反应（OER）电催化剂在水分解中起着重要作用。在此，采用一般的明胶辅助湿化学方法来制备明确的羟基氧化铁和过渡金属掺杂的羟基氧化铁纳米材料，这些材料对OER具有良好的催化性能。特别地，共掺杂的羟基氧化铁（Co0.54Fe0.46OOH）对OER表现出优异的电催化性能，起始电势为1.52 V，托菲尔斜率为47 mV / dec，稳定性出色。与纯羟基氧化铁（FeOOH）催化剂相比，超高的析氧活性和强大的耐用性具有卓越的性能，源自其表面上的Co0.54Fe0.46OOH的支链结构，从而提供了许多活性边缘位点，提高了质量/电荷传输能力强，易释放的氧气气泡和强大的结构稳定性，这对于OER而言是有利的。同时，FeOOH纳米结构中的共掺杂构成了可逆的氧气释放和还原的理想四电子路径，这对于可再充电金属-空气电池，可再生燃料电池和其他重要的清洁能源设备很有用。这项工作可能为构建有希望的水氧化催化剂用于实际的清洁能源应用提供新的见解。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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