Search

Your search keyword '"Kalaiselvimary, J."' showing total 16 results
Start Over Author "Kalaiselvimary, J."
16 results on '"Kalaiselvimary, J."'

8. Effect of surface‐modified montmorillonite incorporated biopolymer membranes for PEM fuel cell applications.

Author

Kalaiselvimary, J., Selvakumar, K., Rajendran, S., Sowmya, G., and Ramesh Prabhu, M.

Subjects
*MONTMORILLONITE, *BIOPOLYMERS, *PROTON exchange membrane fuel cells, *CHITOSAN, *POLYETHYLENE oxide
Abstract

Proton Exchange Membranes (PEMs) based on nanocomposite consisting of Chitosan and Poly (ethylene oxide) (PEO)/modified montmorillonite (H+‐MMT) was prepared by solution casting technique. To appraise PEM performance, the structural properties, hydrolytic stability and transport properties of the prepared membranes were investigated using various characterization methods like FT‐IR, XRD, SEM, AFM, water uptake, swelling ratio, ion exchange capacity (IEC), and proton conductivity measurements. Fabricated blend membranes showed favorable PEM characteristics such as afford comparable proton conductivity, moderate ion exchange capacity and reasonable water uptake. Proton conductivities of the blend membranes are about 2.99 × 10−2 S/cm at room temperature. All the membranes are homogenous that could be revealed from the XRD studies. All the results obtained from this study can be used to conclude that the Chitosan/PEO membrane with H+‐MMT filler is a promising high performance PEM candidate for fuel cell applications in future. POLYM. COMPOS., 40:E301–E311, 2019. © 2017 Society of Plastics Engineers [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

14. Electrical Characterization Of Proton Conducting Polymer Electrolyte Based On Bio Polymer With Acid Dopant.

Author

Kalaiselvimary, J., Pradeepa, P., Sowmya, G., Edwinraj, S., and Prabhu, M. Ramesh

Subjects
*PROTON exchange membrane fuel cells, *POLYELECTROLYTES, *BIOPOLYMERS, *DOPING agents (Chemistry), *PERCHLORIC acid
Abstract

This study describes the biodegradable acid doped films composed of chitosan and Perchloric acid with different ratios (2.5 wt %, 5 wt %, 7.5 wt %, 10 wt %) was prepared by the solution casting technique. The temperature dependence of the proton conductivity of complex electrolytes obeys the Arrhenius relationship. Proton conductivity of the prepared polymer electrolyte of the bio polymer with acid doped was measured to be approximately 5.90x10-4 Scm-1. The dielectric data were analyzed using Complex impedance Z*, Dielectric loss ε', Tangent loss for prepared polymer electrolyte membrane with the highest conductivity samples at various temperature. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

15. Dielectric Behavior OfDifferent Nanofillers Incorporated In PVC-PMMA Based Polymer Electrolyte Membranes.

Author

Sowmya, G., Pradeepa, P., Kalaiselvimary, J., Edwinraj, S., and Prabhu, M. Ramesh

Subjects
ELECTROLYTES, POLYMERIC membranes, METHACRYLATES, VINYL chloride, IMPEDANCE spectroscopy
Abstract

The Poly (methyl methacrylate) (PMMA)-Poly (vinyl chloride) (PVC) based polymer electrolytes were prepared by solvent casting technique. The prepared polymer electrolytes were subjected to conductivity studies by using electrochemical impedance spectroscopy and the maximum ionic conductivity value was found to be 0.8011 x 10-3 Scm-1 at 303K for PVC (17.5wt%) - PMMA (7.5wt %) - LiClO4 (8wt %) - PC (67wt %) - BaTiO3 (8wt%) electrolyte system. The dielectric behavior of the samples also studied. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

16. Structural And Electrochemical Properties Of PEMA With The Influence Of MWCNT/TiO2 Filler.

Author

Pradeepa, P., Edwin raj, S., Kalaiselvimary, J., Sowmya, G., Selvakumar, K., and Prabhu, M. Ramesh

Subjects
ELECTROCHEMISTRY, CRYSTAL structure, PROPYLENE carbonate, NANOCOMPOSITE materials, POLYMETHACRYLATES, MULTIWALLED carbon nanotubes, FILLER materials, TITANIUM dioxide
Abstract

An attempt has been made to prepare a hybrid Nano composite polymer electrolytes (NCPES) based on Poly(ethyl methacrylate) (PEMA) doped with multiwalled carbon nanotubes (MWCNT) and Titanium oxide (TiO2) as additives, Lithium per chlorate (LiClO4) as ionic salt and Propylene Carbonate as plasticizer (PC) by using solvent casting technique. X-ray diffraction analysis (XRD) confirms the miscibility and amorphous nature of the prepared electrolytes. It has been found from the a.c impedance analysis that the inorganic filler reduces the bulk resistance of the electrolytes and thus ionic conductivity enhanced. A high dielectric loss value is observed for the case of doped MWCNT-PEMA in comparison with pure PEMA and doped TiO2-PEMA membranes. Based on the study of relaxation spectra, it is found that the relaxation time decreases with increase in temperature. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results