eprintid: 6781
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/67/81
datestamp: 2023-11-09 16:18:34
lastmod: 2023-11-09 16:18:34
status_changed: 2023-11-09 16:07:38
type: article
metadata_visibility: show
creators_name: Ayodele, O.B.
title: Structure and reactivity of ZSM-5 supported oxalate ligand functionalized nano-Fe catalyst for low temperature direct methane conversion to methanol
ispublished: pub
keywords: Catalyst supports; Catalysts; Exponential functions; Fourier transform infrared spectroscopy; Hydrogen peroxide; Ligands; Methane; Methanol; Oxalic acid; Oxidation; Peroxides; Temperature; X ray diffraction, Energy dispersive x-ray; Fenton process; Fenton-like process; Ferrioxalate; Functionalizations; Methane conversions; Methoxyl radical; Operating condition, X ray photoelectron spectroscopy
note: cited By 25
abstract: The feasibility of low temperature direct methane conversion to methanol (DMCM) over ferrioxalate supported on ZSM-5 catalyst (FeOx/ZSM-5) was investigated in this study. FeOx/ZSM-5 was synthesized via functionalization of Fe with oxalate ligand and employed to generate hydroxyl radicals (HO) from hydrogen peroxide (HP) in a Fenton-like process to activate the methane Formula presented bond scission to form methoxyl radical which in turn reacted with water to form methanol. The Fourier transformed infrared (FTIR) spectroscopy result showed the presence of νa(Formula presented) from the oxalate anion (C2O42�) at 1655 cm�1 and ν3 asymmetry stretch from CO32� at 1343 cm�1. The presence of Fe in the catalyst was elucidated by the energy dispersive X-ray, X-ray diffraction patterns and X-ray photoelectron spectroscopy (XPS). Furthermore, the XPS results showed that Fe2+/Fe3+ ratio in FeOx/ZSM-5 was 4.29. The effect of operating conditions showed that while FeOx/ZSM-5 loading and reaction time followed a simple power function (y = a · xn), the effect of HP dosage followed exponential function (y = a · ex), which signifies that the latter is more significant. The used-FeOx/ZSM-5 characterization result showed that virtually all the Fe2+ have been oxidized to Fe3+ after 15 min of reaction time. This novel result is promising for further research towards commercial low temperature DMCM. © 2016 Elsevier Ltd
date: 2016
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983373731&doi=10.1016%2fj.enconman.2016.08.016&partnerID=40&md5=6565af6e89f58aabd947c1723d2c5080
id_number: 10.1016/j.enconman.2016.08.016
full_text_status: none
publication: Energy Conversion and Management
volume: 126
pagerange: 537-547
refereed: TRUE
issn: 01968904
citation:   Ayodele, O.B.  (2016) Structure and reactivity of ZSM-5 supported oxalate ligand functionalized nano-Fe catalyst for low temperature direct methane conversion to methanol.  Energy Conversion and Management, 126.  pp. 537-547.  ISSN 01968904