02021nas a2200253   4500008004100000022001400041245012600055210006900181260000900250300001400259490000600273520118000279653002001459653001001479653001901489653001901508653001601527100001501543700002801558700001501586700001901601700002401620856012301644       2019                        eng d  a2196-021600aSynthesis of ultrathin PEDOT on carbon nanotubes and shear thinning xanthan Gum-H2SO4 gel electrolyte for supercapacitors0 aSynthesis of ultrathin PEDOT on carbon nanotubes and shear thinn  cMAR   a1861-18690 v63 a<p>Resistance of the electrode material play a vital role for applications in supercapacitors, where lowering the resistance leads to improved performance. Poly(3,4-ethylene dioxythiophene) (PEDOT) possesses high theoretical conductivity; however, the high density of grain boundaries, low accessible surface area, and low rate capability have been pervasive issues affecting the PEDOT-based supercapacitors. To this end, a hydrothermal method is proposed in this work where oxygen functional groups incorporated on the surface of carbon nanotubes (CNTs) are utilized to polymerize 3,4-ethylenedioxythiophene (EDOT). PEDOT forms an ultrathin, well-aligned coating on the surface of CNTs. This arrangement minimizes the number of grain boundaries and increases the electrochemically active surface area. Additionally, a shear-thinning Xanthan gum-H2SO4 gel electrolyte is introduced to overcome the low impregnation of the conventional polyvinyl-based electrolyte due to the hydrophobicity of the CNT-PEDOT composite. A supercapacitor based on this material showed a very low Equivalent Series Resistance (ESR) of 0.31 which leads to a high power density of 74 W cm(-3).</p>
10agel electrolyte10aPEDOT10ashear thinning10asupercapacitor10axanthan gum1 aSoni, Roby1 aBhange, Siddheshwar, N.1 aAthira, E.1 aChetry, Rashmi1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/synthesis-ultrathin-pedot-carbon-nanotubes-and-shear-thinning-xanthan-gum-h2so4-gel