Res. Chem. Intermed.
, Vol. 34, Nos 8–9, pp. 787–792 (2008)
Koninklijke Brill NV, Leiden, 2008.
Also available online - www.brill.nl/rci
Development of Au–Pd catalysts supported on carbon for
a direct borohydride fuel cell
HYANG MEE LEE, SUNG YOEN PARK, KI TAE PARK, UN-HO JUNG,
KOOK CHUN, CHOI DONG WOONG and SUNG HYUN KIM
Department of Chemical & Biological Engineering, Korea University, 1 Anam-Dong, Sungbuk-Ku,
Seoul 136-701, South Korea
Received 19 July 2007; accepted 29 August 2007
Abstract—The purpose of this study is to diminish the hydrolysis of borohydride with good
performances of a direct borohydride fuel cell (DBFC). Pd/C is considered as a proper anode catalyst
for the DBFC. Au/C has lower activity for a hydrolysis reaction than other catalysts such as nickel,
palladium, platinum, etc. Au–Pd catalysts supported on carbon (Au–Pd/C) were prepared with
different weight ratios, 1:3, 2:2 and 3:1. The performances of three different catalysts increased
with the amount of Pd, while the hydrogen evolution rates were similar. Consequently, the catalysts
prepared with a Au/Pd weight ratio of 1:3 showed the best performance.
Keywords: Direct borohydride fuel cell; Au–Pd/C catalysts.
During the past decade, a number of studies have been performed to substitute
fossil fuels like petroleum for a different energy source. One promising source
is hydrogen, having various applications and a huge potential market. Hydrogen
energy has some problems in terms of storage, transportation and generation of
hydrogen. Even if those problems are solved, a compact system of energy supply
must be developed to apply hydrogen for mobile electronic devices. A direct
methanol fuel cell (DMFC) is one of the energy supply systems for compact mobile
devices. DMFC has many advantages, using methanol that is easy to store and to
handle, but DMFC also has some problems. DMFC has low cell voltage and power
density as well as problem of methanol cross-over. Another alternative fuel cell that
uses liquid fuel is the direct borohydride fuel cell (DBFC). DBFC has a structure
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