Increase of metallic silver nanoparticles in Chitosan:AgNt based polymer electrolytes incorporated with alumina filler

被引:77
作者
Aziz, Shujahadeen B. [1 ,2 ]
Brza, M. A. [1 ,3 ]
Mohamed, Pshko A. [4 ]
Kadir, M. F. Z. [5 ]
Hamsan, M. H. [5 ]
Abdulwahid, Rebar T. [1 ]
Woo, H. J. [6 ]
机构
[1] Univ Sulaimani, Coll Sci, Dept Phys, Adv Polymer Mat Res Lab, Qlyasan St, Sulaimani, Kurdistan Regio, Iraq
[2] Komar Univ Sci & Technol, KRC, Sulaimani 46001, Kurdistan Regio, Iraq
[3] Int Islamic Univ Malaysia, Fac Engn, Kuala Lumpur, Gombak, Malaysia
[4] Charmo Univ, Coll Sci, Dept Phys, Peshawa St, Sulaimani, Kurdistan Regio, Iraq
[5] Univ Malaya, Ctr Fdn Studies Sci, Kuala Lumpur, Malaysia
[6] Univ Malaya, Ctr Ion, Fac Sci, Kuala Lumpur, Malaysia
关键词
Natural polymer electrolyte; Plasmonic silver nanoparticles; Ionic and electronic loops; SPR peaks; SEM and EDX analysis; Electrical properties; ELECTRICAL-PROPERTIES; ENHANCED PERFORMANCE; DIELECTRIC BEHAVIOR; IMPEDANCE RESPONSE; SOLID ELECTROLYTES; BLEND ELECTROLYTES; IONIC-CONDUCTIVITY; ORGANIC DOPANT; NANOCOMPOSITE; RELAXATION;
D O I
10.1016/j.rinp.2019.102326
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the present work, the possibility of increasing the amount of metallic silver particles in chitosan (CS)-based polymer nano-composites was discussed. To prepare the electrolyte, a fixed amount of silver nitrate (AgNO3) inorganic salt was added to the natural CS biopolymer. Various techniques, such as UV-vis, SEM, EDX and impedance spectroscopy, were used to characterise the samples. Remarkable enhanced surface plasmonic resonance (SPR) peaks were observed at 420 nm in the UV-vis spectra of the samples incorporated with various amounts of alumina (Al2O3) nano-particles. The intensity of SPR peaks increased with increasing alumina concentration. The SEM image of pure CS showed a smooth surface and little white specks were observed in the SEM image of CS: AgNO3 system. The number of white specks were increased on the surface of the samples incorporated with 1 and 3 wt% of alumina. The sharp intense peaks due to metallic silver particles appeared in the EDX spectra at 3-3.6 keV. The second loop did not manifest for the CS: AgNO3 system because the amount of Ago nanoparticles were low. The distinguishable second loops were observed in impedance plots of CS: AgNO3 systems containing 1 and 3 wt% of alumina filler. The second loop in impedance plots was ascribed to metallic silver particles and its diameter increased with increasing alumina concentrations. The experimental data was fitted with electrical equivalent circuits (EEC). The EEC model reveals that the samples filled with Al2O3 filler needs two circuits for exhibiting best fitting. The dielectric constant increased at 1 wt% of alumina and then it decreased as alumina was increased to 3 wt%. The AC conductivity spectra were presented for all of the samples. The maximum DC conductivity of about 2.3x10(-6) S/cm was obtained for the CS: AgNO3 system doped with 1 wt% alumina. The DC conductivity decreased at 3 wt% alumina due to the reduction of more silver ions to metallic silver particles.
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页数:10
相关论文
共 74 条
[1]   Investigations on ion transport properties of and battery discharge characteristic studies on hot-pressed Ag+-ion-conducting nano-composite polymer electrolytes:: (1-x) [90PEO:10AgNO3]: xSiO2 [J].
Agrawal, R. C. ;
Chandra, A. ;
Bhatt, A. ;
Mahipal, Y. K. .
NEW JOURNAL OF PHYSICS, 2008, 10
[2]   Solid polymer electrolytes: materials designing and all-solid-state battery applications: an overview [J].
Agrawal, R. C. ;
Pandey, G. P. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (22)
[3]   Superionic solids: composite electrolyte phase - an overview [J].
Agrawal, RC ;
Gupta, RK .
JOURNAL OF MATERIALS SCIENCE, 1999, 34 (06) :1131-1162
[4]   The incorporation of silver nanoparticles into polypyrrole: Conductivity changes [J].
Alqudami, Abdullah ;
Annapoorni, S. ;
Sen, P. ;
Rawat, R. S. .
SYNTHETIC METALS, 2007, 157 (01) :53-59
[5]  
[Anonymous], 2017, POLYMERS-BASEL
[6]   Ag+-ion conducting Nano-Composite Polymer Electrolytes (NCPEs): Synthesis, characterization and all-solid-battery studies [J].
Ashrafi, Rehana ;
Sahu, Dinesh K. ;
Kesharwani, Priyanka ;
Ganjir, Manju ;
Agrawal, R. C. .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2014, 391 :91-95
[7]   Influence of silver ion reduction on electrical modulus parameters of solid polymer electrolyte based on chitosan-silver triflate electrolyte membrane [J].
Aziz, S. B. ;
Abidin, Z. H. Z. ;
Arof, A. K. .
EXPRESS POLYMER LETTERS, 2010, 4 (05) :300-310
[8]  
Aziz SB, 2017, A NOVEL POLYMER COMP, V134, P1
[9]   Non suitability of silver ion conducting polymer electrolytes based on chitosan mediated by barium titanate (BaTiO3) for electrochemical device applications [J].
Aziz, Shujahadeen B. ;
Abdullah, Ranjdar M. ;
Kadir, M. F. Z. ;
Ahmed, Hameed M. .
ELECTROCHIMICA ACTA, 2019, 296 :494-507
[10]   The compatibility of chitosan with divalent salts over monovalent salts for the preparation of solid polymer electrolytes [J].
Aziz, Shujahadeen B. ;
Al-Zangana, Shakahawan ;
Woo, H. J. ;
Kadir, M. F. Z. ;
Abdullah, O. Gh. .
RESULTS IN PHYSICS, 2018, 11 :826-836