The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
IrO x · n H 2 O with lattice water–assisted oxygen exchange for high-performance proton exchange membrane water electrolyzers
Open accessAbstract
The trade-off between activity and stability of oxygen evolution reaction (OER) catalysts in proton exchange membrane water electrolyzer (PEMWE) is challenging. Crystalline IrO 2 displays good stability but exhibits poor activity; amorphous IrO x exhibits outstanding activity while sacrificing stability. Here, we combine the advantages of these two materials via a lattice water–incorporated iridium oxide (IrO x · n H 2 O) that has short-range ordered structure of hollandite-like framework. We confirm that IrO x · n H 2 O exhibits boosted activity and ultrahigh stability of >5700 hours (~8 months) with a record-high stability number of 1.9 × 10 7 n oxygen n Ir −1 . We evidence that lattice water is active oxygen species in sustainable and rapid oxygen exchange. The lattice water–assisted modified OER mechanism contributes to improved activity and concurrent stability with no apparent structural degradation, which is different to the conventional adsorbate evolution mechanism and lattice oxygen mechanism. We demonstrate that a high-performance PEMWE with IrO x · n H 2 O as anode electrocatalyst delivers a cell voltage of 1.77 V at 1 A cm −2 for 600 hours (60°C).
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Cites
Design of electrocatalysts for oxygen- and hydrogen-involving energy conversion reactions
Jiao, Y., Zheng, Y., Jaroniec, M., & Qiao, S. Z. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00470a · Cited by 5,388
Self-citationA review on fundamentals for designing oxygen evolution electrocatalysts
Song, J., Wei, C., Huang, Z.-F., Liu, C., Zeng, L., Wang, X., & Xu, Z. J. (2020) · Chemical Society Reviews · doi:10.1039/c9cs00607a · Cited by 2,936
Reier, T., Nong, H. N., Teschner, D., Schlögl, R., & Strasser, P. (2017) · Advanced Energy Materials · doi:10.1002/aenm.201601275 · Cited by 1,253
Cited by
Stability of electrocatalytic OER: from principle to application
Li, H., Lin, Y., Duan, J., Wen, Q., Liu, Y., & Zhai, T. (2024) · Chemical Society Reviews · doi:10.1039/d3cs00010a · Cited by 540
Self-citationEmerging materials and technologies for electrocatalytic seawater splitting
Jin, H., Xu, J., Liu, H., Shen, H., Yu, H., Jaroniec, M., Zheng, Y., & Qiao, S.-Z. (2023) · Science Advances · doi:10.1126/sciadv.adi7755 · Cited by 417
Self-citationRong, C., Huang, X., Arandiyan, H., Shao, Z., Wang, Y., & Chen, Y. (2025) · Advanced Materials · doi:10.1002/adma.202416362 · Cited by 333
Deng, L., Chen, H., Hung, S.-F., Zhang, Y., Yu, H., Chen, H.-Y., Li, L., & Peng, S. (2024) · Journal of the American Chemical Society · doi:10.1021/jacs.4c14529 · Cited by 281
Ru 0.1 Mn 0.9 O x Electrocatalyst for Durable Oxygen Evolution in Acid Seawater
Xu, J., Kao, C., Shen, H., Liu, H., Zheng, Y., & Qiao, S. (2025) · Angewandte Chemie International Edition · doi:10.1002/anie.202420615 · Cited by 58
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Metadata
- Authors
- Xu, J., Jin, H., Lu, T., Li, J., Liu, Y., Davey, K., Zheng, Y., & Qiao, S.-Z.
- Venue
- Science Advances
- Published
- 2023-06-23
- Volume
- 9
- Issue
- 25
- Pages
- eadh1718-eadh1718
- ISSN
- 2375-2548 (ISSN-L)
- OpenAlex
- W4381800146
- Cited by
- 295
- References
- 3
- FWCI
- 13.81
- Type
- journal article
- Language
- en
- Open access
- gold
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- Xu, J., Jin, H., Lu, T., Li, J., Liu, Y., Davey, K., Zheng, Y., & Qiao, S.-Z. (2023). IrO x · n H 2 O with lattice water–assisted oxygen exchange for high-performance proton exchange membrane water electrolyzers. Science Advances. https://doi.org/10.1126/sciadv.adh1718
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