02140nas a2200265   4500008004100000022001400041245015400055210006900209260010600278300001400384490000700398520101700405653003501422653001801457653005001475653002601525653001301551653003801564653004801602100002401650700002401674700002501698700002301723856012801746       2010                        eng d  a0013-468600aFabrication, characterization and electrochemical performance of single strand carbon fiber prepared by catalytic chemical vapor decomposition method0 aFabrication characterization and electrochemical performance of   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcFEB  a2022-20280 v553 a<p>Preparation, fabrication and voltammetric characterizations of a single strand of carbon fiber (SSCF) electrode and their potential applications for biosensor are presented. SSCFs of diameter ca. 10 +/- 2 mu m and few millimeters in length are prepared by catalytic chemical vapor decomposition (CCVD) method. Voltammetry with potassium ferricyanide. alpha-methylferrocene methanol and hexaammineruthenium(III) chloride on SSCF electrode are used as bench marks to validate the electrode properties. Quasi-steady state voltammograms obtained were fitted into a cylindrical diffusion model From which, the standard rate constant (k(0)) and electron transfer coefficient (alpha) are obtained. The use of SSCF electrode is demonstrated for the voltammetric detection of the micromolar quantity of dopamine in the presence of large excess (ca. 200 times) of ascorbic acid, without any fouling of electrode surface. The kinetics of electron transfer are investigated. (C) 2009 Elsevier Ltd All rights reserved.</p>10aalpha-Methylferrocene methanol10aAscorbic acid10aCatalytic chemical vapor decomposition (CCVD)10aCylindrical diffusion10adopamine10aHexaammineruthenium(III) chloride10aSingle strand carbon fiber (SSCF) electrode1 aJoshi, Vrushali, S.1 aGokhale, Suresh, P.1 aPatil, Kashinath, R.1 aHaram, Santosh, K.  uhttp://library.ncl.res.in/content/fabrication-characterization-and-electrochemical-performance-single-strand-carbon-fiber-002234nas a2200241   4500008004100000022001400041245015300055210006900208260010200277300001200379490000700391520122700398653001301625653002201638653002901660653003601689653004001725100002401765700002401789700002501813700002301838856013101861       2014                        eng d  a0250-470700aRole of iron oxide impurities in electrocatalysis by multiwall carbon nanotubes: An investigation using a novel magnetically modified ITO electrodes0 aRole of iron oxide impurities in electrocatalysis by multiwall c  aC V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIAbINDIAN ACAD SCIENCEScAPR  a221-2260 v373 a<p>The role of iron oxide impurities in the electrocatalytic properties of multiwall carbon nanotubes (MWCNTs) prepared by catalytic chemical vapour decomposition method (CCVD) is studied in detail. A novel magnetically modified electrodes have been developed by which MWCNTs were immobilized on indium-tin oxide (ITO) electrodes, without any chemical binders. The electro-catalytic oxidation of dopamine, and reduction of hydrogen peroxide have been studied by cyclic voltammetry on magnetically modified electrodes with (i) MWCNTs with occluded iron oxide impurities (Fe-MWCNTs), (ii) MWCNTs grown on iron oxide nanoparticle particulate films (Io-MWCNTs) and (iii) pristine iron oxide nanoparticle particulate film (Io-NPs). A shift towards less positive potentials for the oxidation of dopamine was observed which is in the order of Fe-MWCNTs &lt; Io-MWCNTs &lt; Io-NPs. Similarly, trend towards less negative potentials for the reduction of hydrogen peroxide was observed. Thus, the electrocatalytic activities displayed by MWCNTs have been attributed to the iron oxide impurities associated with it. The systematic variation was related to the nature of interaction of iron oxide nanoparticles with MWCNT surface.</p>10adopamine10aHydrogen peroxide10airon oxide nanoparticles10amagnetically-modified electrode10aMultiwall carbon nanotubes (MWCNTs)1 aSamant, Kanchan, M.1 aJoshi, Vrushali, S.1 aPatil, Kashinath, R.1 aHaram, Santosh, K.  uhttp://library.ncl.res.in/content/role-iron-oxide-impurities-electrocatalysis-multiwall-carbon-nanotubes-investigation-using-0