Abstract
Development of a durability protocol against the potential fluctuation derived by renewable energy is targeted in this paper. We have studied the effect of various potential fluctuations, by simulating practical operating conditions derived from the use of solar and wind powers. The durability of IrOi and the corresponding degradation mechanism were studied in order to suggest an appropriate durability protocol. We have found that relatively slow fluctuation without cycling back to the low potential like 0 V leads to serious degradation of IrOi catalyst. We have also investigated degradation mechanism of I1O2 and have found that IrOi is further oxidized to Ir02(OH) above 1.8 V, and then Ir02(OH) is converted into soluble Ir(OH)3 or InO} species, leading to loss of Ir02 electrocatalyst.
| Original language | English |
|---|---|
| Title of host publication | ECS Transactions |
| Editors | C. Coutanceau, S. Narayan, Y.-T. Kim, Y. Gochi-Ponce, B.S. Pivovar, T.F. Fuller, R.A. Mantz, P. Shirvanian, D.J. Jones, F. Buechi, V.K. Ramani, J.M. Fenton, K.E. Swider-Lyons, T.J. Schmidt, K.E. Ayers, A.Z. Weber, P.N. Pintauro, P. Strasser, H. Xu, S. Mitsushima, H. Gasteiger, H. Uchida |
| Publisher | Electrochemical Society Inc. |
| Pages | 719-726 |
| Number of pages | 8 |
| Edition | 13 |
| ISBN (Electronic) | 9781607685395 |
| DOIs | |
| Publication status | Published - Jan 1 2018 |
| Event | Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, Mexico Duration: Sep 30 2018 → Oct 4 2018 |
Publication series
| Name | ECS Transactions |
|---|---|
| Number | 13 |
| Volume | 86 |
| ISSN (Print) | 1938-6737 |
| ISSN (Electronic) | 1938-5862 |
Other
| Other | Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting |
|---|---|
| Country | Mexico |
| City | Cancun |
| Period | 9/30/18 → 10/4/18 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Development and evaluation of ir based anode electrocatalysts for water electrolysis. / Muto, Marika; Nagayama, Mayumi; Sasaki, Kazunari; Hayashi, Akari.
ECS Transactions. ed. / C. Coutanceau; S. Narayan; Y.-T. Kim; Y. Gochi-Ponce; B.S. Pivovar; T.F. Fuller; R.A. Mantz; P. Shirvanian; D.J. Jones; F. Buechi; V.K. Ramani; J.M. Fenton; K.E. Swider-Lyons; T.J. Schmidt; K.E. Ayers; A.Z. Weber; P.N. Pintauro; P. Strasser; H. Xu; S. Mitsushima; H. Gasteiger; H. Uchida. 13. ed. Electrochemical Society Inc., 2018. p. 719-726 (ECS Transactions; Vol. 86, No. 13).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Development and evaluation of ir based anode electrocatalysts for water electrolysis
AU - Muto, Marika
AU - Nagayama, Mayumi
AU - Sasaki, Kazunari
AU - Hayashi, Akari
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Development of a durability protocol against the potential fluctuation derived by renewable energy is targeted in this paper. We have studied the effect of various potential fluctuations, by simulating practical operating conditions derived from the use of solar and wind powers. The durability of IrOi and the corresponding degradation mechanism were studied in order to suggest an appropriate durability protocol. We have found that relatively slow fluctuation without cycling back to the low potential like 0 V leads to serious degradation of IrOi catalyst. We have also investigated degradation mechanism of I1O2 and have found that IrOi is further oxidized to Ir02(OH) above 1.8 V, and then Ir02(OH) is converted into soluble Ir(OH)3 or InO} species, leading to loss of Ir02 electrocatalyst.
AB - Development of a durability protocol against the potential fluctuation derived by renewable energy is targeted in this paper. We have studied the effect of various potential fluctuations, by simulating practical operating conditions derived from the use of solar and wind powers. The durability of IrOi and the corresponding degradation mechanism were studied in order to suggest an appropriate durability protocol. We have found that relatively slow fluctuation without cycling back to the low potential like 0 V leads to serious degradation of IrOi catalyst. We have also investigated degradation mechanism of I1O2 and have found that IrOi is further oxidized to Ir02(OH) above 1.8 V, and then Ir02(OH) is converted into soluble Ir(OH)3 or InO} species, leading to loss of Ir02 electrocatalyst.
UR - http://www.scopus.com/inward/record.url?scp=85058319322&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058319322&partnerID=8YFLogxK
U2 - 10.1149/08613.0719ecst
DO - 10.1149/08613.0719ecst
M3 - Conference contribution
T3 - ECS Transactions
SP - 719
EP - 726
BT - ECS Transactions
A2 - Coutanceau, C.
A2 - Narayan, S.
A2 - Kim, Y.-T.
A2 - Gochi-Ponce, Y.
A2 - Pivovar, B.S.
A2 - Fuller, T.F.
A2 - Mantz, R.A.
A2 - Shirvanian, P.
A2 - Jones, D.J.
A2 - Buechi, F.
A2 - Ramani, V.K.
A2 - Fenton, J.M.
A2 - Swider-Lyons, K.E.
A2 - Schmidt, T.J.
A2 - Ayers, K.E.
A2 - Weber, A.Z.
A2 - Pintauro, P.N.
A2 - Strasser, P.
A2 - Xu, H.
A2 - Mitsushima, S.
A2 - Gasteiger, H.
A2 - Uchida, H.
PB - Electrochemical Society Inc.
ER -