Low Temperature Hydrothermal Method for Synthesis of Crystalline Fe2O3 and their Oxygen Evolution Performance. Issue 11 (24th September 2020)

• Record Type: Journal Article
• Authors: Rana, Supriya; Yadav, Krishna K.; Sood, Kritika; Ankush, ; Mehta, S. K.; Jha, Menaka
• Is Part Of: Electroanalysis. Volume 32:Issue 11(2020)
• Page Start: 2528
• Page End: 2534
• Publication Date: 2020-09-24
• Subjects: Iron Oxide -- Nanoparticles -- Oxygen evolution -- Tafel Slope; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202060146
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: Hydrothermal method for the synthesis of hematite (α‐Fe2 O3 ) has been done at 120 °C. Morphological study reveals the formation of spherical nanoparticles of average size ∼10 nm. The prepared electrode (Fe2 O3 dropcosted over graphite sheet) used as a working electrode for the oxygen evolution reaction in 1 M KOH. The linear sweep voltammetry confirms that the as‐prepared electrode requires 340 mV potential to reach a current density of 1 mA/cm 2 and 510 mV potential for 10 mA/cm 2 . Further, the kinetics of electrocatalyst has been investigated using Tafel slope, mass activity and Turn over frequency. Abstract :