Amorphous nickel-iron oxides/carbon nanohybrids for an efficient and durable oxygen evolution reaction
作者: Bo LiShuangming ChenJie TianMing GongHangxun XuLi Song
作者单位: 1University of Science and Technology of China
刊名: Nano Research, 2017, Vol.10 (11), pp.3629-3637
来源数据库: Springer Journal
DOI: 10.1007/s12274-017-1572-9
关键词: Amorphous metal oxidesElectrocatalysisOxygen evolution reactionSonochemistryX-ray absorption near edge structure
英文摘要: Highly efficient and durable water oxidation electrocatalysts are critically important in a wide range of clean energy technologies, including water electrolyzers and rechargeable metal-air batteries. Here, we report a novel sonochemical approach to synthesize amorphous nickel-iron oxides/carbon nanohybrids with tunable compositions for the oxygen evolution reaction (OER). The sonochemically synthesized amorphous electrocatalysts with optimal composition exhibit a low overpotential of 290 mV at 10 mA·cm−2 and a Tafel slope of 31 mV·decade−1 in a 0.1 M KOH electrolyte, outperforming the benchmark RuO2 catalyst. Meanwhile, these nanohybrids are also highly stable and remain amorphous even after prolonged cycling. In addition to amorphism, sonochemistry...
原始语种摘要: Highly efficient and durable water oxidation electrocatalysts are critically important in a wide range of clean energy technologies, including water electrolyzers and rechargeable metal-air batteries. Here, we report a novel sonochemical approach to synthesize amorphous nickel-iron oxides/carbon nanohybrids with tunable compositions for the oxygen evolution reaction (OER). The sonochemically synthesized amorphous electrocatalysts with optimal composition exhibit a low overpotential of 290 mV at 10 mA·cm−2 and a Tafel slope of 31 mV·decade−1 in a 0.1 M KOH electrolyte, outperforming the benchmark RuO2 catalyst. Meanwhile, these nanohybrids are also highly stable and remain amorphous even after prolonged cycling. In addition to amorphism, sonochemistry...
全文获取路径: Springer  (合作)
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影响因子:7.392 (2012)

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关键词翻译
关键词翻译
  •  进化
  • nickel 
  • efficient 有用的
  • amorphous 非晶质的
  • carbon 
  • reaction 反酌
  • sonochemistry 超声化学
  • evolution 进化
  • oxygen 进化
  • synthesize 合成
  • durable 耐久的