The long-term stability of the catalysts for fuel cell reactions is one of the obstacles that limit their practical application. Herein, anatase TiO2 nanospindles were synthesized as a support for the growth of Pt nanodots to obtain a TiO2-Pt catalyst for oxygen reduction reaction (ORR). TEM, XRD, Raman spectrum, and electrochemical testing were employed to characterize the properties of TiO2-Pt catalyst. Results showed as following: the morphology of Pt nanodots on TiO2-Pt catalyst was dependent on the surface affinity of TiO2 nanospindles; there were two individual ORR peaks of the dual-component catalyst; after Pt deposition, the ORR performance of the catalyst was enhanced, which was ascribed to the accelerated surface charge transport through the Pt nanodots; the oxygen reduction performance on both components of TiO2-Pt catalyst were promoted by ultraviolet light illumination; the long-term stability of TiO2-Pt nanospindle was better than that of commercial carbon black supported Pt catalyst.
PENG Gui-ming
,
WU Su-qin
,
PENG Quan-ming
,
BURKERT Seth C.
,
DU Rui-an
,
YU Chang-lin
,
STAR Alexander
. Synthesis of TiO2 Nanospindles Supported Pt Nanodots for Oxygen Reduction Reaction[J]. Advances in New and Renewable Energy, 2018
, 6(2)
: 163
-168
.
DOI: 10.3969/j.issn.2095-560X.2018.02.011
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