Thermal stability and ionic conductivity of the ionic clathrate hydrates incorporated with potassium hydroxide

2009 ◽  
Vol 19 (36) ◽  
pp. 6542 ◽  
Author(s):  
Jong-Ho Cha ◽  
Wonhee Lee ◽  
Huen Lee
Keyword(s):  
Thermal Stability ◽  
Ionic Conductivity ◽  
Potassium Hydroxide ◽  
Clathrate Hydrates ◽  
Ionic Clathrate Hydrates

Ionic Conductivity Enhancement Due to Coguest Inclusion in the Pure Ionic Clathrate Hydrates

2008 ◽  
Vol 112 (28) ◽  
pp. 10573-10578 ◽  
Author(s):  
Jong-Ho Cha ◽  
Kyuchul Shin ◽  
Sukjeong Choi ◽  
Huen Lee
Keyword(s):  
Ionic Conductivity ◽  
Clathrate Hydrates ◽  
Conductivity Enhancement ◽  
Ionic Clathrate Hydrates

Polyvinyl fibers as outperform candidature in the solid polymer electrolytes

2020 ◽  
pp. 152808372097062
Author(s):  
Muhammad Yameen Solangi ◽  
Umair Aftab ◽  
Muhammad Ishaque ◽  
Aqeel Bhutto ◽  
Ayman Nafady ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Weight Loss ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Vital Role ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Main Challenge ◽  
Different Temperatures ◽  
Solution Cast

Solid polymer electrolytes (SPEs) are the best choice to replace liquid electrolytes in supercapacitors, fuel cells, solar cells and batteries. The main challenge in this filed is the ionic conductivity and thermal stability of SPEs which is still not up to mark, therefore more investigations are needed to address these issues. In this study, PVA/salt based SPEs was fabricated using both solution cast and electro-spinning methods to probe the effect of different salts such as (NaCl, KCl and KI) and their concentrations on the ionic conductivity. Scanning electron microscopy (SEM) x and Fourier Transform Infra-Red (FTIR) have been employed to study the morphology as well as the different functional groups of SPEs, respectively. It was noted that small addition of NaCl, KCl and KI salts in SPEs dramatically increased the ionic conductivity to 5.95×10−6, 5.31×10−6 and 4.83×10−6 S/cm, respectively. Importantly, the SPEs obtained with NaCl via electro-spinning have higher ionic conductivity (5.95×10−6 S/cm) than their casted SPEs (1.87×10−6 S/cm). Thermal stability was also studied at two different temperatures i.e. 80 °C and 100 °C. The weight loss percentage of electrospun SPEs have zero percent weight loss than the solution based SPEs. The combined results clearly indicated that the nature of salt, concentration and fabrication process play a vital role in the ionic conductivity. Also, the NaCl salt with low molecular weight at low concentrations shows an enhanced ionic conductivity.

Calorimetric and Structural Studies of Tetrabutylammonium Chloride Ionic Clathrate Hydrates

2010 ◽  
Vol 114 (36) ◽  
pp. 11838-11846 ◽  
Author(s):  
T. Rodionova ◽  
V. Komarov ◽  
G. Villevald ◽  
L. Aladko ◽  
T. Karpova ◽  
...  
Keyword(s):  
Clathrate Hydrates ◽  
Structural Studies ◽  
Tetrabutylammonium Chloride ◽  
Ionic Clathrate Hydrates

scholarly journals Ionic Liquid Electrolytes for Safer and More Reliable Sodium Battery Systems

2020 ◽  
Vol 10 (18) ◽  
pp. 6323 ◽  
Author(s):  
Mariangela Bellusci ◽  
Elisabetta Simonetti ◽  
Massimo De Francesco ◽  
Giovanni Battista Appetecchi
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Ionic Conductivity ◽  
Low Temperature ◽  
Room Temperature ◽  
Side Chain ◽  
Electrolyte Mixtures ◽  
Sodium Battery ◽  
Sodium Batteries ◽  
Battery Systems

Na+-conducting, binary electrolytic mixtures, based on 1-ethyl-3-methyl-imidazolium, trimethyl-butyl-ammonium, and N-alkyl-N-methyl-piperidinium ionic liquid (IL) families, were designed and investigated. The anions were selected among the per(fluoroalkylsulfonyl)imide families. Sodium bis(trifluoromethylsulfonyl)imide, NaTFSI, was selected as the salt. The NaTFSI-IL electrolytes, addressed to safer sodium battery systems, were studied and compared in terms of ionic conductivity and thermal stability as a function of the temperature, the nature of the anion and the cation aliphatic side chain length. Room temperature conductivities of interest for sodium batteries, i.e., largely overcoming 10−4 or 10−3 S cm−1, are displayed. Similar conduction values are exhibited by the EMI-based samples even below −10 °C, making these electrolyte mixtures potentially appealing also for low temperature applications. The NaTFSI-IL electrolytes, with the exception of the FSI-ones, are found to be thermally stable up to 275 °C, depending on the nature of the cation and/or anion, thus extending their applicability above 100 °C and remarkably increasing the reliability and safety of the final device, especially in the case of prolonged overheating.

Methane Capacity of Double Tetrabutylammonium Bromide + Methane Ionic Clathrate Hydrates

2012 ◽  
Vol 26 (6) ◽  
pp. 3711-3716 ◽  
Author(s):  
Artem A. Sizikov ◽  
Andrey Yu. Manakov ◽  
Tatyana V. Rodionova
Keyword(s):  
Tetrabutylammonium Bromide ◽  
Clathrate Hydrates ◽  
Ionic Clathrate Hydrates ◽  
Methane Capacity

Sago Gel Polymer Electrolyte for Zinc-Air Battery

2010 ◽  
Vol 72 ◽  
pp. 305-308 ◽  
Author(s):  
M.N. Masri ◽  
M.F.M. Nazeri ◽  
A.A. Mohamad
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Discharge Capacity ◽  
Potassium Hydroxide ◽  
Gel Polymer Electrolyte ◽  
Practical Capacity ◽  
Air Battery

A sago-based gel polymer electrolyte (GPE) was prepared by mixing native sago with potassium hydroxide (KOH) aqueous in order to investigate the applicability of GPE to zinc-air (Zn-air) battery. The viscosity and conductivity of the sago GPE were evaluated using varying sago amounts and KOH concentrations. The viscosity of the sago GPE was kept as a reserve in the region of ~ 0.2 Pa s as the KOH concentration was increased from 2 to 8 M. Sago GPE was found to have an excellent ionic conductivity of (4.45  0.1) x 10-1 S cm-1 with 6 M KOH. GPE was also employed in an experimental Znair battery using porous Zn electrode as the anode. The battery shows outstanding discharge capacity and practical capacity obtained of 505 mA h g-1.

Ionic clathrate hydrates loaded into a cryogel – halloysite clay composite for cold storage

2020 ◽  
Vol 191 ◽  
pp. 105618 ◽  
Author(s):  
Andrey Stoporev ◽  
Rais Mendgaziev ◽  
Maria Artemova ◽  
Anton Semenov ◽  
Andrei Novikov ◽  
...  
Keyword(s):  
Cold Storage ◽  
Clathrate Hydrates ◽  
Ionic Clathrate Hydrates
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