An Advanced Ni鈥揊e Layered Double Hydroxide Electrocatalyst for Water Oxidation
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- 作者：Ming Gong ; Yanguang Li ; Hailiang Wang ; Yongye Liang ; Justin Z. Wu ; Jigang Zhou ; Jian Wang ; Tom Regier ; Fei Wei ; Hongjie Dai
- 刊名：The Journal of the American Chemical Society
- 出版年：2013
- 出版时间：June 12, 2013
- 年：2013
- 卷：135
- 期：23
- 页码：8452-8455
- 全文大小：275K
- 年卷期：v.135,no.23(June 12, 2013)
- ISSN：1520-5126
文摘
Highly active, durable, and cost-effective electrocatalysts for water oxidation to evolve oxygen gas hold a key to a range of renewable energy solutions, including water-splitting and rechargeable metal鈥揳ir batteries. Here, we report the synthesis of ultrathin nickel鈥搃ron layered double hydroxide (NiFe-LDH) nanoplates on mildly oxidized multiwalled carbon nanotubes (CNTs). Incorporation of Fe into the nickel hydroxide induced the formation of NiFe-LDH. The crystalline NiFe-LDH phase in nanoplate form is found to be highly active for oxygen evolution reaction in alkaline solutions. For NiFe-LDH grown on a network of CNTs, the resulting NiFe-LDH/CNT complex exhibits higher electrocatalytic activity and stability for oxygen evolution than commercial precious metal Ir catalysts.