Synthesis of Metal-Oxide-Supported Triple Nano Catalysts and Application to H-2 Production and H2O2 Oxidation

Çelik Kazıcı H., Salman F., Izgi M. S., Sahin Ö.

JOURNAL OF ELECTRONIC MATERIALS, vol.49, no.6, pp.3634-3644, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 6
  • Publication Date: 2020
  • Doi Number: 10.1007/s11664-020-08061-6
  • Journal Name: JOURNAL OF ELECTRONIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, Computer & Applied Sciences, INSPEC
  • Page Numbers: pp.3634-3644
  • Keywords: Cobalt, molybdenum, boron, magnesium oxide, hydrogen generation, hydrogen peroxide, CORE-SHELL NANOPARTICLES, HYDROGEN-PEROXIDE, AMMONIA-BORANE, HYDROLYTIC DEHYDROGENATION, EFFICIENT CATALYST, GRAPHENE OXIDE, ELECTROCHEMICAL-BEHAVIOR, NONENZYMATIC GLUCOSE, ACTIVATED CARBON, HOLLOW SPHERES
  • Istanbul Technical University Affiliated: No

Abstract

Magnesium oxide (MgO)-supported nanocatalysts are a highly insulating crystalline solid with a sodium chloride crystal structure and excellent properties including chemical inertness, high temperature stability and high thermal conductivity. Here, a ternary alloy catalyst of MgO-supported CoMoB was synthesized by means of a chemical reduction method using ethylene glycol solution. The prepared CoMoB/MgO catalysts were characterized using x-ray diffraction, scanning electron microscopy (SEM/EDX) and Fourier transform infrared spectroscopic analysis. The CoMoB/MgO nanocomposite served as the enabling platform for a range of applications including hydrogen production catalyst and hydrogen peroxide (H2O2) determination. It also showed a high hydrogen production rate (1000 mLgcat-1 min(-1)) and low activation energy (68.319 kJ mol(-1)) for the hydrolysis of ammonia borane. Additionally, the electro-oxidation performance of the CoMoB/MgO for H2O2 detection was studied by cyclic voltammetry and chronoamperometry. The CoMoB/MgO sensor demonstrated a wide linear range up to 10 mM with a detection limit of 3.3 mu M.