Al2O3 based Co-Schiff Base complex catalyst in hydrogen generation


Kilinc D., Sahin Ö.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.44, no.53, pp.28391-28401, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 53
  • Publication Date: 2019
  • Doi Number: 10.1016/j.ijhydene.2019.08.053
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.28391-28401
  • Keywords: Aluminum oxide, Schiff base, Cobalt complex, Catalyst, Hydrogen generation, SODIUM-BOROHYDRIDE HYDROLYSIS, NABH4, METAL, HYDRIDES, NANOPARTICLE, PERFORMANCE, INSIGHTS, BEHAVIOR, PROGRESS, STORAGE

Abstract

This work presents the study of the catalytic activity of aluminum oxide supported Co-Schiff Base complex derived from 4,4'-Methylenebis(2,6-diethylaniline)-3,5,-itertbutylsalicylaldimine-Co-Schiff Base complex in sodium borohydride hydrolysis. This catalyst is characterized with XRD, FT-IR, SEM, TEM, and BET. The respective reaction kinetics have been calculated. With the catalyst condition, maximum reaction (initial) rate is 106540 and 147193,3 mL H-2/g(cat). min. at 30 degrees C and 50 degrees C. For this reaction apparent activation energy is 44,7792 k.J mol(-1) with 20-50 degrees C. The reaction order value (n) for this catalytic system is 0,31. Additionally when Al2O3 supported Co-Schiff Base complex compared with pure Co-Schiff Base complex, the experimental results show that the aluminum oxide support exhibits enhancing effect with 106540 and 64147 mL H-2/g(cat ) min respectively in sodium borohydride hydrolysis to Hydrogen production. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.