2010 Fiscal Year Final Research Report
Fabrication of oxygen evolution anode for seawater electrolysis in acidic NaCl solution at about pH 1
| Project/Area Number |
19760514
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Tohoku Institute of Technology |
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Principal Investigator |
KATO Zenta Tohoku Institute of Technology, 工学部, 准教授 (40398491)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 電極活物質 / 海水電解 / 酸素発生 / 再生可能エネルギー / CO_2エネルギー |
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| Research Abstract |
The oxygen evolution anode for seawater electrolysis was improved for the achievement of the energy system, that is, "Global CO_2 Recycling". The anodes were composed of the electrocatalyst oxide, the intermediate layer and the titanium substrate. Mn_<1-x>Mo_xSn_yO_<2+x> electrocatalyst oxide / Sn_<1-x>Ir_xO_2 intermediate layer/Ti anodes, whose the intermediate layer was prepared from 0.04 M Ir-0.06 M Sn solution, showed the oxygen evolution efficiency higher than 99.8% for more than 4300 h in electrolysis of 0.5 M NaCl solution of pH 1 at the current density of 1000 Am^<-2>.
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