期刊
ADVANCED ENERGY MATERIALS
卷 8, 期 10, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201702598
关键词
electrocatalysts; FeOOH; metal-organic frameworks; oxygen evolution reaction; porous carbon
类别
资金
- National Basic Research Program of China (973 program) [2014CB239402]
- National Natural Science Foundation of China [21476043]
- Fundamental Research Funds for the Central Universities [DUT17ZD204]
- Swedish Energy Agency
- K&A Wallenberg Foundation
As a cost-effective catalyst for the oxygen evolution reaction (OER), the potential use of FeOOH is hindered by its intrinsic poor electron conductivity. Here, the significant enhancement of OER activity and long-term stability of electrodeposited FeOOH on zeolitic imidazolate framework-derived N-doped porous carbons (NPCs) are reported. In alkaline media, FeOOH/NPC supported on nickel foam as a 3D electrode delivers a current density of 100 mA cm(-2) at a small overpotential of 230 mV and exhibits a low Tafel slope of 33.8 mV dec(-1) as well as excellent durability, making it one of the most active OER catalysts. Such high performance is attributed to a combined effect of the excellent electron conductivity of NPC and the synergy between FeOOH and NiO derived from Ni substrate.
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