Carbon for engineering of a water-oxidizing catalyst. Issue 48 (20th November 2015)

• Record Type: Journal Article
• Authors: Najafpour, Mohammad Mahdi; Salimi, Saeideh
• Is Part Of: Dalton transactions. Volume 44:Issue 48(2015)
• Page Start: 20991
• Page End: 20998
• Publication Date: 2015-11-20
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt03625a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Herein, we report a conductive, self-healing, recycling, highly dispersible, magnetically separable, environmentally friendly, and nano-sized water-oxidizing catalyst. Carbon has a significant role in engineering of the water-oxidizing catalyst. Abstract : Herein we report that the reaction of KMnO4 with cobalt nanoparticles coated with multiple graphene layers forms a promising catalyst toward water oxidation. The compound was characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. In addition to the Mn oxide-based characteristics of the catalyst, it is a conductive, self-healing, recycling, highly dispersible, magnetically separable, environmentally friendly, and nano-sized catalyst for water oxidation. The turnover frequency for the catalyst toward water oxidation is 0.1 and 0.05 (mmol O2 per mol Mn s) in the presence of cerium(iv ) ammonium nitrate and photo-produced Ru(bpy)3 3+ .