| 钴铁双金属氧化物多孔纳米棒的制备及其电解水析氧性能 | |
| Porous Cobalt-Iron Binary Metal Oxides Nanorods as Efficient Oxygen Evolving Catalysts for Water Splitting | |
| 摘要: 通过简单的钴铁前躯体热分解法制备了系列一维Co1-xFexOy（0≤x≤1）多孔纳米材料，并在1 mol·L-1 KOH溶液中研究了其电解水析氧催化性能。研究发现不同Fe掺杂量对材料的结构与电解水析氧催化性能有较大的影响，其中16%（n/n）Fe掺杂量的Co1-xFexOy具有最优的析氧催化性能。在10 mA·cm-2电流密度下其析氧过电位为345 mV，塔菲尔斜率为54 mV·dec-1，并表现出优异的析氧稳定性能。廉价、高效的Co1-xFexOy多孔纳米棒材料有望成为优良的析氧催化剂用于电解水制氢。 | |
| 关键词: 电解水 析氧反应 钴铁氧化物 纳米棒 | |
| 基金项目: 国家自然科学基金（No.51402205）和山西省基础研究计划（No.2015021058）资助项目。 | |
| Abstract: A series of porous Co1-xFexOy(0 ≤ x ≤ 1) nanorods were fabricated by a simple thermal decomposed of CoFe-NTA precursors and were served as oxygen evolving catalysts for water electrolysis in 1 mol·L-1 KOH solution. It was found that different Fe doping amounts have dramatically effects on the structure and electrocatalytic water oxidation activities and the 16%(n/n) Fe-doping sample exhibited the most excellent oxygen evolving activity. A lowered overpotential of 345 mV was achieved at a current density of 10 mA·cm-2 with a Tafel slope of 54 mV·dec-1 for the 16% Fe-doping sample, which suggest that it can be applied as low cost and efficient oxygen catalyst for water splitting. | |
| Keywords: water splitting oxygen evolving reaction cobalt-iron metal oxides nanorods | |
| 投稿时间：2016-11-14 修订日期：2017-01-06 | |
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| 高旭升,刘光,史沁芳,王开放,许丽娟,贺冬莹,李晋平.钴铁双金属氧化物多孔纳米棒的制备及其电解水析氧性能[J].无机化学学报,2017,33(4):623-629. | |
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