Bulletin of Chemical Reaction Engineering & Catalysis
2018: BCREC Volume 13 Issue 1 Year 2018 (April 2018)

Synthesis and Evaluation of ABO3 Perovskites (A=La and B=Mn, Co) with Stoichiometric and Over-stoichiometric Ratios of B/A for Catalytic Oxidation of Trichloroethylene

Razieh Alagheband (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr)
Sarah Maghsoodi (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr)
Amirhossein Shahbazi Kootenaei (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr)
Hassan Kianmanesh (Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr)

Article Info

Publish Date
02 Apr 2018

Abstract

In this contribution, perovskite catalysts (ABO3) were probed that site A and site B were occupied by lanthanum and transition metals of manganese or cobalt, respectively, with stoichiometric ratios as well as 20 % over-stoichiometric ratios of B/A. The perovskite samples were synthesized using a gel-combustion method and characterized by BET, XRD, SEM and O2-TPD analyses. After mounting in a fixed bed reactor, the catalysts were examined in atmospheric pressure conditions at different temperatures for oxidation of 1000 ppm trichloroethylene in the air. Evaluation of over-stoichiometric catalysts activity showed that the increased ratio of B/A in the catalysts compared to the stoichiometric one led to BET surface area, oxygen mobility, and consequently catalytic performance improvement. The lanthanum manganite perovskite with 20 % excess manganese yielded the best catalytic performance among the probed perovskites. 

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Journal Info
Bulletin of Chemical Reaction Engineering & Catalysis
Website

Abbrev

bcrec

Publisher

Masyarakat Katalis Indonesia - Indonesian Catalyst Society

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

Bulletin of Chemical Reaction Engineering & Catalysis, a reputable international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics, and chemical reaction engineering. Scientific articles dealing with the following topics in ...