scholarly journals Nanoporous Carbide-Derived Carbon Material-Based Linear Actuators

Materials ◽  
2009 ◽  
Vol 3 (1) ◽  
pp. 9-25 ◽  
Author(s):  
Janno Torop ◽  
Mati Arulepp ◽  
Jaan Leis ◽  
Andres Punning ◽  
Urmas Johanson ◽  
...  
Keyword(s):  
Carbon Material ◽  
Linear Actuators ◽  
Carbide Derived Carbon

Low voltage linear actuators based on carbide-derived carbon powder

2009 ◽  
Author(s):  
Janno Torop ◽  
Mati Arulepp ◽  
Jaan Leis ◽  
Andres Punning ◽  
Urmas Johanson ◽  
...  
Keyword(s):  
Low Voltage ◽  
Carbon Powder ◽  
Linear Actuators ◽  
Carbide Derived Carbon

scholarly journals Polypyrrole with Phosphor Tungsten Acid and Carbide-Derived Carbon: Change of Solvent in Electropolymerization and Linear Actuation

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6302
Author(s):  
Chau B. Tran ◽  
Zane Zondaka ◽  
Quoc Bao Le ◽  
Bharath Kumar Velmurugan ◽  
Rudolf Kiefer
Keyword(s):  
Aqueous Electrolyte ◽  
Composite Films ◽  
Sodium Perchlorate ◽  
Mechanical Deformation ◽  
X Ray ◽  
Aqueous Solvent ◽  
Linear Actuators ◽  
Aqueous Ethylene Glycol ◽  
Carbon Change ◽  
Carbide Derived Carbon

Linear actuators based on polypyrrole (PPy) are envisaged to have only one ion that triggers the actuation direction, either at oxidation (anion-driven) or at reduction (cation-driven). PPy doped with dodecylbenzenesulfonate (PPy/DBS) is the most common applied conducting polymer having cation-driven actuation in aqueous solvent and mainly anion-driven actuation in an organic electrolyte. It is somehow desired to have an actuator that is independent of the applied solvent in the same actuation direction. In this research we made PPy/DBS with the addition of phosphorus tungsten acid, forming PPyPT films, as well with included carbide derived carbon (CDC) resulting in PPyCDC films. The solvent in electropolymerization was changed from an aqueous ethylene glycol mixture to pure EG forming PPyPT-EG and PPyCDC-EG composites. Our goal in this study was to investigate the linear actuation properties of PPy composites applying sodium perchlorate in aqueous (NaClO4-aq) and propylene carbonate (NaClO4-PC) electrolytes. Cyclic voltammetry and square potential steps in combination with electro-chemo-mechanical-deformation (ECMD) measurements of PPy composite films were performed. The PPyPT and PPyCDC had mixed ion-actuation in NaClO4-PC while in NaClO4-aq expansion at reduction (cation-driven) was observed. Those novel PPy composites electropolymerized in EG solvent showed independently which solvent applied mainly expansion at reduction (cation-driven actuator). Chronopotentiometric measurements were performed on all composites, revealing excellent specific capacitance up to 190 F g−1 for PPyCDC-EG (best capacitance retention of 90% after 1000 cycles) and 130 F g−1 for PPyPT-EG in aqueous electrolyte. The films were characterized by scanning electron microscopy (SEM), Raman, Fourier-transform infrared (FTIR) and energy dispersive X-ray spectroscopy (EDX).

Prospects of application of high-tech carbon material as drainage in glaucoma surgery

2017 ◽  
Vol 10 (4) ◽  
pp. 63-67
Author(s):  
A.V. Stepanov ◽  
◽  
P.I. Zolkin ◽  
U.Sh. Gamzaeva ◽  
◽  
...  
Keyword(s):  
Carbon Material ◽  
Glaucoma Surgery ◽  
High Tech ◽  
Prospects Of Application

Separation of highly dispersed carbon material of OU-B grade from aqueous solutions using electroflotation technique

2020 ◽  
Vol 245 ◽  
pp. 116861
Author(s):  
Anastasia Gaydukova ◽  
Vladimir Kolesnikov ◽  
Alyona Stoyanova ◽  
Artem Kolesnikov
Keyword(s):  
Aqueous Solutions ◽  
Carbon Material ◽  
Highly Dispersed
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