Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions

Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions

Polypyrrole(Ppy) synthesized by wet chemical method using FeCl3 and (NH4)2S2O8 as oxidants were subjected to analysis by Scanning Electron Microscopy, X-ray diffraction, UV-visible spectroscopy, Differential scanning calorimetry, Raman and 1HNMR techniques. Electrochemical analysis such as cyclic vo...

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Main Authors: S. Padmapriya, S. Harinipriya
Format: Article
Language:English
Published: Elsevier 2019-09-01
Series:Journal of Materials Research and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785419304867
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spelling doaj-dc79a6ef97314e12978c1ea90e5e5a5f2020-11-25T03:50:55ZengElsevierJournal of Materials Research and Technology2238-78542019-09-018544354447Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anionsS. Padmapriya0S. Harinipriya1Electrochemical Systems Laboratory, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur 603203, India; Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, IndiaElectrochemical Systems Laboratory, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur 603203, India; Corresponding author.Polypyrrole(Ppy) synthesized by wet chemical method using FeCl3 and (NH4)2S2O8 as oxidants were subjected to analysis by Scanning Electron Microscopy, X-ray diffraction, UV-visible spectroscopy, Differential scanning calorimetry, Raman and 1HNMR techniques. Electrochemical analysis such as cyclic voltammetry, linear sweep voltammetry and impedance spectroscopy of Ppy were performed. Charge/Discharge studies in 0.01 M NaOH showed hydrogen storage capacity of PpyFeCl3 and PpyAPS as 27.24 and 24.4 mA h/g respectively, implying stable hydrogen storage by PpyFeCl3. This variation in the ability of storing hydrogen by Ppy with change in oxidants is attributed to the formation of anion induced H-bonded structures in the backbone of Ppy as supported by Raman and 1HNMR analysis. Keywords: Polypyrrole, Raman spectroscopy, Electrochemical analysis, Hydrogen storagehttp://www.sciencedirect.com/science/article/pii/S2238785419304867
collection DOAJ
language English
format Article
sources DOAJ
author S. Padmapriya
S. Harinipriya
spellingShingle S. Padmapriya
S. Harinipriya
Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
Journal of Materials Research and Technology
author_facet S. Padmapriya
S. Harinipriya
author_sort S. Padmapriya
title Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
title_short Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
title_full Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
title_fullStr Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
title_full_unstemmed Hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
title_sort hydrogen storage capacity of polypyrrole in alkaline medium: effect of oxidants and counter anions
publisher Elsevier
series Journal of Materials Research and Technology
issn 2238-7854
publishDate 2019-09-01
description Polypyrrole(Ppy) synthesized by wet chemical method using FeCl3 and (NH4)2S2O8 as oxidants were subjected to analysis by Scanning Electron Microscopy, X-ray diffraction, UV-visible spectroscopy, Differential scanning calorimetry, Raman and 1HNMR techniques. Electrochemical analysis such as cyclic voltammetry, linear sweep voltammetry and impedance spectroscopy of Ppy were performed. Charge/Discharge studies in 0.01 M NaOH showed hydrogen storage capacity of PpyFeCl3 and PpyAPS as 27.24 and 24.4 mA h/g respectively, implying stable hydrogen storage by PpyFeCl3. This variation in the ability of storing hydrogen by Ppy with change in oxidants is attributed to the formation of anion induced H-bonded structures in the backbone of Ppy as supported by Raman and 1HNMR analysis. Keywords: Polypyrrole, Raman spectroscopy, Electrochemical analysis, Hydrogen storage
url http://www.sciencedirect.com/science/article/pii/S2238785419304867
work_keys_str_mv AT spadmapriya hydrogenstoragecapacityofpolypyrroleinalkalinemediumeffectofoxidantsandcounteranions
AT sharinipriya hydrogenstoragecapacityofpolypyrroleinalkalinemediumeffectofoxidantsandcounteranions
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