A Co-MOF nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction in alkaline electrolytes. Issue 2 (13th December 2017)

• Record Type: Journal Article
• Authors: Zhang, Xiaoping; Sun, Weidi; Du, Huitong; Kong, Rong-Mei; Qu, Fengli
• Is Part Of: Inorganic chemistry frontiers. Volume 5:Issue 2(2018)
• Page Start: 344
• Page End: 347
• Publication Date: 2017-12-13
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7qi00630f
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : A Co-MOF nanosheet array on Ni foam (Co-MOF/NF) acts as a superior electrocatalyst for the oxygen evolution reaction, needing an overpotential of only 311 mV to drive a geometrical catalytic current density of 50 mA cm −2 in 1.0 M KOH. Abstract : 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 O2 s −1 at an overpotential of 400 mV.