Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2
Abstract Both commercial and laboratory-synthesized IrO2 catalysts typically possess rutile-type structures with multiple facets. Theoretical results predict the (101) facet is the most energetically favorable for oxygen evolution reaction owing to its lowest energy barrier. Achieving monolayer thic...
Saved in:
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-08-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-62665-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849234638048854016 |
|---|---|
| author | Deren Yang Chunyang Zhang Yufeng Qin Yang Yue Yubo Liu Xiaoyun Shi Kang Hua Xuemin An Louyu Jin Yipeng Zhang Shouwei Zuo Aidong Tan Jianguo Liu |
| author_facet | Deren Yang Chunyang Zhang Yufeng Qin Yang Yue Yubo Liu Xiaoyun Shi Kang Hua Xuemin An Louyu Jin Yipeng Zhang Shouwei Zuo Aidong Tan Jianguo Liu |
| author_sort | Deren Yang |
| collection | DOAJ |
| description | Abstract Both commercial and laboratory-synthesized IrO2 catalysts typically possess rutile-type structures with multiple facets. Theoretical results predict the (101) facet is the most energetically favorable for oxygen evolution reaction owing to its lowest energy barrier. Achieving monolayer thickness while exposing this desired facet is a significant opportunity for IrO2. Herein, we develop an ammonia-induced facet engineering for the synthesis of single-faceted IrO2(101) monolayer. It achieves 230 mV overpotential at 10 mA cmgeo -2 in a three-electrode system and 1.70 V at 2 A cmgeo -2 in a proton exchange membrane (PEM) electrolyzer. Though facet engineering primarily contributes to modulating the intrinsic activity rather than stability, single-faceted IrO2 monolayer performs over 10,000-hour stability at constant 1.5 A cmgeo -2 (3.95 mV kh-1 decay) and 1000-hour stability at 0.2 mgIr cmgeo -2 under fluctuating conditions. This work proposes that ammonia-induced facet engineering of IrO2 monolayer enables facet-dependent oxygen evolution reaction (OER) performance and high stability in industrial-scale PEM electrolysis. |
| format | Article |
| id | doaj-art-99371ca35cb74175aa80919726f90ea7 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-99371ca35cb74175aa80919726f90ea72025-08-20T04:03:06ZengNature PortfolioNature Communications2041-17232025-08-0116111610.1038/s41467-025-62665-2Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2Deren Yang0Chunyang Zhang1Yufeng Qin2Yang Yue3Yubo Liu4Xiaoyun Shi5Kang Hua6Xuemin An7Louyu Jin8Yipeng Zhang9Shouwei Zuo10Aidong Tan11Jianguo Liu12Beijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of SciencesBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadBeijing Laboratory of New Energy Storage Technology, Institute of Energy Power Innovation, North China Electric Power University, 2 Beinong RoadAbstract Both commercial and laboratory-synthesized IrO2 catalysts typically possess rutile-type structures with multiple facets. Theoretical results predict the (101) facet is the most energetically favorable for oxygen evolution reaction owing to its lowest energy barrier. Achieving monolayer thickness while exposing this desired facet is a significant opportunity for IrO2. Herein, we develop an ammonia-induced facet engineering for the synthesis of single-faceted IrO2(101) monolayer. It achieves 230 mV overpotential at 10 mA cmgeo -2 in a three-electrode system and 1.70 V at 2 A cmgeo -2 in a proton exchange membrane (PEM) electrolyzer. Though facet engineering primarily contributes to modulating the intrinsic activity rather than stability, single-faceted IrO2 monolayer performs over 10,000-hour stability at constant 1.5 A cmgeo -2 (3.95 mV kh-1 decay) and 1000-hour stability at 0.2 mgIr cmgeo -2 under fluctuating conditions. This work proposes that ammonia-induced facet engineering of IrO2 monolayer enables facet-dependent oxygen evolution reaction (OER) performance and high stability in industrial-scale PEM electrolysis.https://doi.org/10.1038/s41467-025-62665-2 |
| spellingShingle | Deren Yang Chunyang Zhang Yufeng Qin Yang Yue Yubo Liu Xiaoyun Shi Kang Hua Xuemin An Louyu Jin Yipeng Zhang Shouwei Zuo Aidong Tan Jianguo Liu Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 Nature Communications |
| title | Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 |
| title_full | Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 |
| title_fullStr | Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 |
| title_full_unstemmed | Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 |
| title_short | Single-faceted IrO2 monolayer enabling high-performing proton exchange membrane water electrolysis beyond 10,000 h stability at 1.5 A cm-2 |
| title_sort | single faceted iro2 monolayer enabling high performing proton exchange membrane water electrolysis beyond 10 000 h stability at 1 5 a cm 2 |
| url | https://doi.org/10.1038/s41467-025-62665-2 |
| work_keys_str_mv | AT derenyang singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT chunyangzhang singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT yufengqin singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT yangyue singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT yuboliu singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT xiaoyunshi singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT kanghua singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT xueminan singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT louyujin singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT yipengzhang singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT shouweizuo singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT aidongtan singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 AT jianguoliu singlefacetediro2monolayerenablinghighperformingprotonexchangemembranewaterelectrolysisbeyond10000hstabilityat15acm2 |