01839nas a2200193   4500008004100000022001400041245010600055210006900161260007100230300001600301490000800317520107100325100002501396700002101421700002301442700002201465700003001487856012801517       2007                        eng d  a1932-744700aTemplate-assisted synthesis of ruthenium oxide nanoneedles: electrical and electrochemical properties0 aTemplateassisted synthesis of ruthenium oxide nanoneedles electr  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcNOV  a16593-166000 v1113 a<p>We here demonstrate the formation of bundles of RuO2 nanoneedles (ca. 100 nm diameter) by a templateassisted electrodeposition from aqueous RuCl3 solution under potentiostatic conditions at room temperature. Cyclic voltammetric measurements in 0.5 M H2SO4 show significantly higher redox-related charging behavior for the RuO2 nanoneedles compared to that of the commercial sample, which is also supported by the electrochemical impedance data. A comparison of the specific capacitance reveals a higher value for nanoneedles (3 F/g instead of 0.4 F/g for the bulk), which has been explained on the basis of enhanced reactivity. More interestingly, electrical transport measurements reveal a transition from metallic to semiconducting behavior especially at low-temperature caused by an impurity scattering mechanism. We anticipate that the present simple route for the fabrication of RuO2 nanostructures will be useful to exploit their potentials in various fields such as electrocatalysis, nanoelectronics, and more importantly for designing supercapacitors.</p>1 aSubhramannia, Mahima1 aBalan, Beena, K.1 aSathe, Bhaskar, R.1 aMulla, Imtiaz, S.1 aPillai, Vijayamohanan, K.  uhttps://library.ncl.res.in/content/template-assisted-synthesis-ruthenium-oxide-nanoneedles-electrical-and-electrochemical-0