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http://dx.doi.org/10.7316/KHNES.2016.27.5.471

Synthesis and Evaluation of Ir/TiO2 OER catalyst for PEM water electrolysis  

SONG, MINAH (Elchemtech Co.,Ltd.)
JUNG, HYEYOUNG (Elchemtech Co.,Ltd.)
LEE, HAEJI (Elchemtech Co.,Ltd.)
CHOI, YUNKI (Elchemtech Co.,Ltd.)
MOON, SANGBONG (Elchemtech Co.,Ltd.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.27, no.5, 2016 , pp. 471-477 More about this Journal
Abstract
In this research, the Ir supported $TiO_2$ (P25) catalyst was prepared by precipitation method for oxygen evolution reaction. The $Ir/TiO_2$ catalyst was synthesised by reduction reaction using reducing agent. Physiochemical characterizations of synthesized $Ir/TiO_2$ catalyst was studied by means of SEM, EDS mapping, TEM and XRD. The Electrochemical characterizations were tested by using the technique of CV and LSV by RDE and Potentiostat. Physicochemical properties were characterized with XRD where Iridium metal morphology and Ir(111) and Ir(222) peaks were founded. $Ir0.2Ru0.8O_2$ exhibited higher OER activity than $Ir0.5Ru0.5O_2$ followed by $Ir/TiO_2$ and $IrO_2$.
Keywords
Oxygen evolution reaction; Water electrolysis; Catalyst; Precipitance; $TiO_2$ catalyst support;
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