A Co-MOF nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction in alkaline electrolytes

作者：Zhang, Xiaoping; Sun, Weidi; Du, Huitong; Kong, Rong-Mei^*; Qu, Fengli^*

来源：Inorganic Chemistry Frontiers, 2018, 5(2): 344-347.

DOI：10.1039/c7qi00630f

• EFFICIENT WATER OXIDATION
• METAL-ORGANIC FRAMEWORKS
• STORAGE PERFORMANCE
• NANOWIRE ARRAY
• OXIDE
• CATALYSTS
• NANOPARTICLES
• TEREPHTHALATE
• NANOARRAY
• NETWORK

It is highly attractive to develop high-performance non-noble-metal electrocatalysts for water oxidation in alkaline media. In this communication, we report the hydrothermal growth of a Co-MOF nanosheet array on Ni foam (Co-MOF/NF) as a 3D oxygen evolution reaction catalyst in alkaline media. The Co-MOF/NF demonstrates superior activity and needs an overpotential of only 311 mV to drive a geometrical catalytic current density of 50 mA cm(-2) in 1.0 M KOH. Notably, this catalyst also demonstrates superior long-term electrochemical durability for at least 105 h, and it achieves a high turnover frequency of 0.18 mol O-2 s(-1) at an overpotential of 400 mV.

• 出版日期2018-2
• 单位曲阜师范大学