Observation of ionic conductivity on PUA-TBAI-I2 gel polymer electrolyte

Chai, Kai Ling; Aung, Min Min; Lim, Hong Ngee; Abdullah, Luqman Chuah

doi:10.1038/s41598-021-03965-7

Cited by 15 publications

(2 citation statements)

References 63 publications

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“…As the G loading continues to increase, reaching 40 and up to 60 phr, the signal shifts from a “semicircle” to a “linear-like” graph characteristic, where the intercept of the plot on the real axis representing the impedance, denoting the bulk resistance [ 66 ]. This transition suggests a significant movement toward conductivity within the composite, as revealed by the observed electrical behavior.…”

Section: Resultsmentioning

confidence: 99%

Electrically Conductive Natural Rubber Composite Films Reinforced with Graphite Platelets

Kitsawat,

Siri,

Phisalaphong

2024

Polymers

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Green natural rubber (NR) composites reinforced with synthetic graphite platelets, using alginate as a thickening and dispersing agent, were successfully developed to improve mechanical properties, chemical resistance, and electrical conductivity. The fabrication was performed using a latex aqueous microdispersion process. The research demonstrated the effective incorporation of graphite platelets into the NR matrix up to 60 parts per hundred rubbers (phr) without causing agglomeration or phase separation. Graphite incorporation significantly improved the mechanical strength of the composite films. NR with 60 phr of graphite exhibited the highest Young’s modulus of 12.3 MPa, roughly 100 times that of the neat NR film. The reinforcement also strongly improved the hydrophilicity of the composite films, resulting in a higher initial water absorption rate compared to the neat NR film. Moreover, the incorporation of graphite significantly improved the chemical resistance of the composite films against nonpolar solvents, such as toluene. The composite films exhibited biodegradability at about 21% to 30% after 90 days in soil. The electrical conductivity of the composite films was considerably enhanced up to 2.18 × 10−4 S/cm at a graphite loading of 60 phr. According to the improved properties, the developed composites have potential applications in electronic substrates.

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Section: Resultsmentioning

confidence: 99%

Electrically Conductive Natural Rubber Composite Films Reinforced with Graphite Platelets

Kitsawat,

Siri,

Phisalaphong

2024

Polymers

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“…The XRD patterns of Na-SPEs show a broadening in the PVA characteristic band and a decrease in the diffraction intensity, both of which point to the predominance of the amorphous phase. This could be due to disrupting the PVA's semi-crystalline phase by adding NaI salt [24,25]. The absence of crystalline peaks of the salt in the SPEs indicates that the NaI has entirely dissolved in the matrix due to its low lattice energy [26,27].…”

Section: Resultsmentioning

confidence: 99%

Effect of Salt Content and Operating Temperature on the Nitrogen Dioxide Gas Sensing Performance of Sodium-Ion Conducting Solid Polymer Electrolyte

Kareem,

Suhail,

Abdullah

2023

Trends Sci

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Sodium-ion conducting solid polymer electrolyte (Na-SPE) films based on polyvinyl alcohol (PVA) with various weight percentages of sodium iodide (NaI) were prepared using the casting technique. The films’ structural, morphology and electrical conductivity were examined to understand the sensing mechanism of the as-prepared Na-SPE films. The X-ray diffraction (XRD) and atomic force microscopy (AFM) data, respectively, showed the amorphous and homogeneous granular structure of Na-SPE films due to the high dissociation of NaI in the PVA matrix for all concentrations. The changes in the FTIR vibrational modes of Na-SPEs provide evidence of interactions between cations and functional groups of the host matrix. The effect of salt content, operating temperature and gas concentration on the performance of the Na-SPE sensor towards NO2 were investigated. In contrast to the pure PVA film, which did not respond to NO2 gas at low concentrations, Na-SPE films exhibit higher sensitivity to NO2 gas with faster response and recovery times. At low NO2 gas concentration (50 ppm), a sample containing 20 wt.% of NaI exhibits the highest sensitivity at the operating temperature of 200 °C. In comparison, at a high NO2 gas concentration (550 ppm), a sample containing 40 wt.% of NaI exhibits a maximum sensitivity at 150 °C. These findings suggest that Na-SPE films would be suitable for gas sensor applications. HIGHLIGHTS Na-SPEs films based on PVA with various salt contents have been prepared using the casting method The Hall effect data confirm the n-type conductivity of the Na-SPEs Na-SPE structure exhibits high sensitivity towards NO2 with rapid response/recovery times SPE film has a maximum sensitivity of 127.3 % at low NO2 gas concentration and a maximum sensitivity of 126 % at high gas concentration These results imply that this compound would be suitable for environmental and industrial uses GRAPHICAL ABSTRACT

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Efficient dye-sensitized solar cell fabricated using a less toxic alternative to electrolyte and charge collector

Patni

Pillai

2022

Environ Sci Pollut Res

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Observation of ionic conductivity on PUA-TBAI-I2 gel polymer electrolyte

Cited by 15 publications

References 63 publications

Electrically Conductive Natural Rubber Composite Films Reinforced with Graphite Platelets

Electrically Conductive Natural Rubber Composite Films Reinforced with Graphite Platelets

Effect of Salt Content and Operating Temperature on the Nitrogen Dioxide Gas Sensing Performance of Sodium-Ion Conducting Solid Polymer Electrolyte

Efficient dye-sensitized solar cell fabricated using a less toxic alternative to electrolyte and charge collector

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