Nickel‐Nanoparticles on Doped Graphene: A Highly Active Electrocatalyst for Alcohol and Carbohydrate Electrooxidation for Energy Production. Issue 23 (27th September 2018)

• Record Type: Journal Article
• Authors: Shabnam, Luba; Faisal, Shaikh N.; Roy, Anup K.; Gomes, Vincent G.
• Is Part Of: ChemElectroChem. Volume 5:Issue 23(2018)
• Page Start: 3799
• Page End: 3808
• Publication Date: 2018-09-27
• Subjects: carbohydrate -- electrocatalysis -- ethanol -- graphene -- nickel nanoparticles; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201800818
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: Nickel nanoparticles supported on nitrogen doped graphene (Ni−NGr) as highly efficient electrocatalyst were synthesized via controlled thermal annealing using a mixture of graphene oxide, nickel nitrate and uric acid. The synthesized Ni−NGr catalyst presented excellent electrocatalytic performance for ethanol, glucose and glycerol oxidation, stemming from the synergistic effects of nickel and N‐graphene. The electrocatalytic activity was enhanced by the high surface area and nitrogen‐based active sites of pyridinic and graphitic N in doped graphene. These N‐moieties enhanced the accessibility of active sites while preventing agglomeration of nickel nanoparticles on the doped graphene surface. The hybrid electrocatalyst performances were significantly improved and are suited for electrooxidation application in fuel cells. Abstract : Gimme fuel, gimme fire : nickel nanoparticles supported on nitrogen doped graphene (Ni‐NGr) are synthesized. The Ni‐NGr composite shows excellent electrocatalytic performance for ethanol, glucose and glycerol oxidation. The hybrid electrocatalyst performances are significantly improved by the high surface area and nitrogen‐based active sites of pyridinic and graphitic N in doped graphene and are suited for electrooxidation applications in fuel cells.