Pt nanodendrites anchored on bamboo-shaped carbon nanofiber arrays as highly efficient electrocatalyst for oxygen reduction reaction
2013 (English)In: International journal of hydrogen energy, ISSN 0360-3199, Vol. 38, no 36, 16677-16684 p.Article in journal (Refereed) Published
In order to improve the Pt utilization and enhance their catalytic performance in fuel cells, a novel composite electrode composed of single-crystalline Pt nanodendrites and support constructed by bamboo-shaped carbon nanofiber arrays (CNFAs) on carbon paper, is reported. This electrode is designed by growing vertically CNFAs on carbon paper via plasma enhanced chemical vapor deposition, followed by the direct synthesis of Pt nanodendrites using a simple surfactant-free aqueous solution method. Electron microscopy studies reveal that the Pt nanodendrites are uniformly high dispersed and anchored on the surface of CNFAs. Electrochemical measurements demonstrate that the resultant electrode exhibits higher electrocatalytic activity and stability for oxygen reduction reaction than commercial Pt/C catalyst, suggesting its potential application in fuel cells.
Place, publisher, year, edition, pages
2013. Vol. 38, no 36, 16677-16684 p.
Electrocatalyst, Bamboo-shaped carbon nanofiber arrays, Pt nanodendrites, Oxygen reduction reaction, Fuel cells
IdentifiersURN: urn:nbn:se:kth:diva-139274DOI: 10.1016/j.ijhydene.2013.04.037ISI: 000327904500092ScopusID: 2-s2.0-84888005588OAI: oai:DiVA.org:kth-139274DiVA: diva2:685167
QC 201401092014-01-092014-01-082014-01-15Bibliographically approved