Investigation of carbon supported Pd-Cu nanoparticles as anode catalysts for direct borohydride fuel cell
JOURNAL OF POWER SOURCES, cilt.249, ss.239-246, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 249
- Basım Tarihi: 2014
- Doi Numarası: 10.1016/j.jpowsour.2013.10.063
- Dergi Adı: JOURNAL OF POWER SOURCES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.239-246
- Anahtar Kelimeler: Direct borohydride fuel cell, Nanoparticles, Anode catalyst, High performance, BIMETALLIC NANOPARTICLES, SODIUM-BOROHYDRIDE, OXYGEN REDUCTION, AU, OXIDATION, ELECTROOXIDATION, PERFORMANCE, ELECTROCATALYST, ELECTRODE, PLATINUM
- Kocaeli Üniversitesi Adresli: Evet
Özet
Carbon supported Pd and bimetallic Pd-Cu nanoparticles with different compositions are prepared by a modified polyol method and used as anode catalysts for direct borohydride fuel cell (DBFC). The physical and electrochemical properties of the as-prepared electrocatalysts are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), ICP-AES, cyclic voltammetry (CV), chronoamperometry (CA), and fuel cell experiments. The results show that the carbon supported Pd-Cu bimetallic catalysts have much higher catalytic activity for the direct oxidation of BH4- than the carbon supported pure nanosized Pd catalyst, especially the Pd50Cu50/C catalyst presents the highest catalytic activity among all as-prepared catalysts, and the DBFC using Pd50Cu50/C as anode catalyst and Pt/C as cathode catalyst gives the best performance, and the maximum power density is 98 mW cm(-2) at a current density of 223 mA cm(-2) at 60 degrees C. (C) 2013 Elsevier B.V. All rights reserved.