TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction

Electrochemical water splitting has been regarded as one of the most promising technologies for efficient and clean hydrogen production. The development of superior electrocatalysts, based on hybrid materials, plays a critical role in the future. In this work, TNT/LaFeO3 composite is designed as an...

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Main Authors: Khadijah M. Emran, Shimaa M. Ali
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Electrochemistry Communications
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1388248121002332
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author Khadijah M. Emran
Shimaa M. Ali
author_facet Khadijah M. Emran
Shimaa M. Ali
author_sort Khadijah M. Emran
collection DOAJ
description Electrochemical water splitting has been regarded as one of the most promising technologies for efficient and clean hydrogen production. The development of superior electrocatalysts, based on hybrid materials, plays a critical role in the future. In this work, TNT/LaFeO3 composite is designed as an electrocatalyst for the hydrogen production in an aqueous acidic solution. The morphology and structure of the individual TNT and LaFeO3 catalysts are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The electrocatalytic activities of TNT, LaFeO3 and TNT/ LaFeO3 composite for the hydrogen evolution reaction (HER) in 0.1 mol.L-1 H2SO4 solution are studied by potentiodynamic polarization. TNT/LaFeO3 composite shows a superior electrocatalytic activity as compared to those of individual components. Two aspects can contribute to this performance, first, the nano porous structure of TNT and LaFeO3; and the second is the pn-junction developed at TNT-LaFeO3 interface, which is responsible for the enhanced reducing performance of the composite catalyst.
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spelling doaj.art-704cd0f4e3eb41c794d01fb82cfe16a52022-12-21T22:58:51ZengElsevierElectrochemistry Communications1388-24812021-12-01133107149TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reactionKhadijah M. Emran0Shimaa M. Ali1Department of Chemistry, College of Science, Taibah University, Madinah 30002, Saudi Arabia; Corresponding author.Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, EgyptElectrochemical water splitting has been regarded as one of the most promising technologies for efficient and clean hydrogen production. The development of superior electrocatalysts, based on hybrid materials, plays a critical role in the future. In this work, TNT/LaFeO3 composite is designed as an electrocatalyst for the hydrogen production in an aqueous acidic solution. The morphology and structure of the individual TNT and LaFeO3 catalysts are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The electrocatalytic activities of TNT, LaFeO3 and TNT/ LaFeO3 composite for the hydrogen evolution reaction (HER) in 0.1 mol.L-1 H2SO4 solution are studied by potentiodynamic polarization. TNT/LaFeO3 composite shows a superior electrocatalytic activity as compared to those of individual components. Two aspects can contribute to this performance, first, the nano porous structure of TNT and LaFeO3; and the second is the pn-junction developed at TNT-LaFeO3 interface, which is responsible for the enhanced reducing performance of the composite catalyst.http://www.sciencedirect.com/science/article/pii/S1388248121002332ElectrocatalystsTiO2 nanotubesPerovskiteHydrogen generationpn-junction
spellingShingle Khadijah M. Emran
Shimaa M. Ali
TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
Electrochemistry Communications
Electrocatalysts
TiO2 nanotubes
Perovskite
Hydrogen generation
pn-junction
title TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
title_full TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
title_fullStr TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
title_full_unstemmed TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
title_short TNT/LaFeO3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
title_sort tnt lafeo3 composite as novel condition catalyst for ameliorating hydrogen evolution reaction
topic Electrocatalysts
TiO2 nanotubes
Perovskite
Hydrogen generation
pn-junction
url http://www.sciencedirect.com/science/article/pii/S1388248121002332
work_keys_str_mv AT khadijahmemran tntlafeo3compositeasnovelconditioncatalystforamelioratinghydrogenevolutionreaction
AT shimaamali tntlafeo3compositeasnovelconditioncatalystforamelioratinghydrogenevolutionreaction