Photocatalytic Splitting Of Seawater For
Hydrogen Energy
Author(s)
A. J. Simamora, F. C. Chang & H. P. Wang
Abstract
Photocatalytic splitting of seawater with oxalic acid as sacrificial reagents on
CuO/TNT and nanosize TiO2 have been studied. A better H2 yield (1.26 μmol/g
cat.) from photocatalytic splitting of seawater on CuO/TNT is obtained. An
economic consideration for electrical power generation with a H2-internal
combustor fueled with H2 yielded from photocatalytic splitting of seawater has
also been studied. The years of return for the small scale solar-derived power
generation system are 3.5.
Keywords: nanosize TiO2, H2, seawater.
1 Introduction
Fossil fuels which have been the main energy source have had negative impacts
on human health and the environment. Air pollution or global warming has been
caused mainly by the combustion of fossil fuels. However, fossil energy is fast
depleting. Renewable energy is becoming one of the better alternatives. Since
Honda and Fujishima demonstrated electrochemical photolysis of water for
generation of H2 in 1972 [1], photocatalytic splitting of water has become one of
the active energy research topics. Many efforts have been devoted to enhance
activity of splitting of water by promotion with noble metals [2, 3], modification
by metal doping [4–6], or adding electron donors on TiO2 [7, 8]. Generally, the
enhancement of photocatalytic activity may be obtained on high surface area
Keywords
nanosize TiO2, H2, seawater.
Related Book
Other papers in this volume
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