TY  - JOUR
A1  - Muntean, Roxana
A1  - Rost, Ulrich
A1  - Pascal, Dragos
A1  - Marginean, Gabriela
A1  - Vaszilcsin, Nicolae
T1  - Determination of the Electrochemical Surface Area for CNF-Pt  Electrocatalyst Using Cyclic Voltammetry
T2  - Chemical Bulletin of “Politehnica” University of Timisoara, Romania
N2  - Carbon Nanofibers (CNF) are considered to be a promising catalyst support material due to their unique characteristics, excellent mechanical, electrical and structural properties, high surface area and nevertheless, good interaction with metallic catalyst particles. The possibility of preparing CNF decorated with platinum by an electrochemical method was tested, using a hexachloroplatinic bath solution. The experiments were carried out with the aid of a Potentiostat/Galvanostat Ivium Technologies Vertex, in a three – electrode cell. The aim of the present work was to determine the electrochemical surface area (ECSA) of the CNF-Pt catalysts in relation to the functionalization treatment of fibers, using an electrochemical method. ECSA for different functionalized CNF-Pt catalysts was determined by cyclic voltammetry in 0.5 M H2SO4 solution. The highest active surface of platinum was obtained for the samples with CNF functionalized by plasma treatment using 80 W for 1800 s. The obtained results correlate very well with the particles size and distribution of platinum, revealed by scanning electron microscopy (SEM) and the quantity of deposited platinum determined by thermo gravimetrical analysis (TGA) respectively. Cyclic voltammetry (CV) has been proven to be a suitable method for estimation of the ECSA of the electrocatalysts.
KW  - carbon nanofibers, platinum electrodeposition, ele ctrochemical surface area
Y1  - 2016
UR  - https://whge.opus.hbz-nrw.de/frontdoor/index/index/docId/947
VL  - 61 (75)
IS  - 2
SP  - 44
EP  - 48
ER  -