Mechanoelectric transduction of ionic polymer-graphene composite sensor with ionic liquid as electrolyte

2019 ◽  
Vol 286 ◽  
pp. 68-77 ◽  
Author(s):  
Qingsong He ◽  
David Vokoun ◽  
Tyler Stalbaum ◽  
Kwang J. Kim ◽  
Alexander I. Fedorchenko ◽  
...  
2018 ◽  
Vol 6 (31) ◽  
pp. 8395-8404 ◽  
Author(s):  
Varij Panwar ◽  
Gopinathan Anoop

Here, we show that biocompatible IPMNC sensors based on a carboxyl graphene–acidic ionic liquid–polyvinylpyrrolidone–polystyrene sulfonic acid ionic blend membrane can generate a high sensing current (6 mA cm−2) with a bending strain of 0.009.


2008 ◽  
Vol 47 (8) ◽  
pp. 3292-3297 ◽  
Author(s):  
Xue Yang ◽  
Zhaofu Fei ◽  
Dongbin Zhao ◽  
Wee Han Ang ◽  
Yongdan Li ◽  
...  

2005 ◽  
Vol 889 ◽  
Author(s):  
Barbar Akle ◽  
Donald J. Leo ◽  
Changwoon Nah ◽  
Abdul M. Kader

ABSTRACTIonomeric polymer transducers consist of an ion-exchange membrane plated with conductive metal layers on the outer surfaces. Such materials are known to generate large bending strain (> 9% is possible) at low applied voltages (typically less than 5 V). The main disadvantage of ionomer–ionic liquid transducers is the slow speed of response. The speed of response in such actuators has been correlated to the ionic liquid content and the conductivity of the membrane. To increase the conductivity of the transducers a Nafion™ mat is hydrated with 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMI-Tf) ionic liquids and high surface area RuO2 electrodes are attached using the Direct Assembly Process (DAP). The Nafion™ mat is prepared from homogenous solution electrospinning. The solution is prepared by mixing 1 wt % of polyethylene oxide solution in methanol (PEO, Mol. wt 3×106) to 5 wt % Nafion 1100 solution.. The syringe needle is connected to a 15kV power supply and is placed 15cm away from the collecting drum. The measured conductivities of water hydrated Nafion electro-spun fibers are 16.8 mS/cm, which are lower than the nominal 110 mS/cm that of H+ Nafion membranes. The uptake is measured to be around 250 %wt compared to 58 %wt obtained in Nafion films. The ionic conductivity of 110 %wt swollen ionic liquids-Nafion mat composite is computed to be 0.9 mS/cm compared to 0.3 mS/cm in ionic liquid-Nafion membrane composite. The speed of response in actuators with an ionic liquid- Nafion™ mat is 1.34 %/s compared to 0.88 %/s for that in ionic liquid Nafion™ film transducers.


2015 ◽  
Vol 25 (11) ◽  
pp. 1683-1693 ◽  
Author(s):  
Natalia A. Bakhtina ◽  
Ute Loeffelmann ◽  
Neil MacKinnon ◽  
Jan G. Korvink

2013 ◽  
Vol 56 (3) ◽  
pp. 480-487 ◽  
Author(s):  
Wenjie Zhao ◽  
Zhixiang Zeng ◽  
Shusen Peng ◽  
Xuedong Wu ◽  
Qunji Xue ◽  
...  

2019 ◽  
Vol 7 (7) ◽  
pp. 3018-3023 ◽  
Author(s):  
Vikram Singh ◽  
Anil Kumar Padhan ◽  
Subhasis Das Adhikary ◽  
Aarti Tiwari ◽  
Debaprasad Mandal ◽  
...  

A polyoxometalate–ionic polymer composite was utilized as highly stable and efficient catalyst for high performance Li–S battery cathode with high utilization of sulfur and capacity retention.


Sign in / Sign up

Export Citation Format

Share Document