Adjustable Ternary FeCoNi Nanohybrids for Enhanced Oxygen Evolution Reaction. Issue 67 (4th November 2019)

• Record Type: Journal Article
• Authors: Yang, Yang; Wei, Pengkun; Hao, Zewei; Yu, Qilin; Liu, Huajie; Liu, Lu
• Is Part Of: Chemistry. Volume 25:Issue 67(2019)
• Page Start: 15361
• Page End: 15366
• Publication Date: 2019-11-04
• Subjects: electrocatalysis -- morphology -- oxygen evolution reaction -- ternary compounds -- transition metals; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201903509
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Water splitting as a greatly desired technology to produce clean renewable energy, but is hampered by the sluggish oxygen evolution reaction. So, the development of highly active and durable water oxidation electrocatalysts is of primarily significance for energy conversion. Here, a facial strategy to synthesize FeCoNi nanohybrids with adjustable morphological structures by using fluorine is introduced. The morphology and electrocatalytic activity of the sample is determined by the innovative introduction of fluorine. Among them, the overpotential at 10 mA cm −2 of the best sample is approximately 97 mV lower than the commercial RuO2 toward the oxygen evolution reaction in 1 m KOH. Additionally, the catalysts also have low Tafel slopes and remarkable stability. Abstract : Triple whammy : Development of highly active and durable water oxidation electrocatalysts is of primary significance for energy conversion. A series of adjustable ternary FeCoNi nanohybrids are synthesized by using a simple solvothermal method, showing superior oxygen evolution reaction performance owing to their superior morphology and enhanced conductivity. The overpotential of the best catalyst is approximately 98 mV lower than commercial RuO2 .