WITHDRAWN: PVA + NaSCN and ionic liquid based polymer electrolyte for supercapacitor

Biosorption of cationic Hg2+ and Remazol brilliant blue anionic dye from binary solution using Gelidium corneum biomass

“…The absorption band at ν = 2250 cm −1 is attributed to a weak S–H stretching “thiol” as reported by Samson and Otaraku Ipeghan 74 . On the other hand, Dujearic-Stephane et al 75 , confirmed the absorption band at ν = 2169 cm −1 is related to a strong S–C≡N stretching vibration band “thiocyanate”. Moreover, the FTIR spectrum of the Gelidium corneum biomass before the bio-adsorption process shown a characteristic absorption band at ν = 1642 cm −1 owing to amidic carbonyl (C=O) or strong C=C stretching as reported by Di et al 76 .…”

“…(cm −1 ) Annotations Wave no. (cm −1 ) Annotations 4069 –OH hydroxyl groups stretching 4056 –OH hydroxyl groups stretching “alcohol” 13 Bhattacharya et al 71 3442 –OH or N–H stretching 3597, 3578, 3557 Strong broad –OH stretching − 155 Li et al 72 2934 C–H stretching of aliphatic hydrogens or OH stretching 2940 Medium C–H stretching “alkane” − 6 Zhao et al 73 2349 Carbon dioxide or Si–C stretching 2351 Carbon dioxide or Si–C stretching − 2 – 2250 Weak S–H stretching “thiol” 2239 Weak C≡N stretching “nitrile” or weak C≡C stretching “alkyne” 11 Samson & Otaraku Ipeghan 74 2169 Strong S–C≡N stretching “thiocyanate” 2167 Strong S–C≡N stretching “thiocyanate” 2 Dujearic-Stephane et al 75 1642 C=O amidic carbonyl or strong C=C stretching 1665 C=O, Carbonyl group “ketonic carbonyl” “conjugated ketone” − 23 Di et al 76 1542 C=C stretching or Amide–II (protein N–H bend, C–N stretch) 1547 Strong N–O stretching “nitro compound” …”

Development and Characterization of a New Solid Polymer Electrolyte for Supercapacitor Device

“…Te Nyquist plot assists in determining R ct . Te standard Nyquist plot has a semicircular component that corresponds to the restricted process of electron transfer at high frequencies and a linear portion that corresponds to the constrained step of electrochemical difusion at low frequencies [64]. Te relative error of ftting was 0.5.…”

“…Basically, R s and Z w represent the bulk properties of the electrolyte solution and difusion, whereas Q and R ct are afected by the dielectric and insulating characteristics at the interface between electrode and electrolyte. Te capacitance between the electrolyte's ionic species and the electronic charges at the electrode surfaces is represented by C dl in a parallel relationship with R ct [64]. Te Nyquist plot assists in determining R ct .…”