Defective K <sub>2</sub> Ti <sub>8</sub> O <sub>17</sub> Nanorod Supports Enable Stable High‐Current‐Density Acidic Water Electrolysis via Confinement‐Engineered IrO <sub>x</sub> (Small 36/2025)
Water Electrolysis Featuring a minimal Ir content of 10.89%, this catalyst delivers a 4.4-fold higher mass activity than commercial IrO2. It empowers proton exchange membrane water electrolysis systems (0.3 mg cm−2 Ir loading) to operate stably at 3 A cm−2 (1.79 V) for >550 hours, dynamically adapts to renewable energy fluctuations, and achieves hydrogen production at $0.88 per kg H2. More in article number 2505131, Xiaoxiao Huang, Xiaoyan Luo, and co-workers.
Authors
- Jun Bo Zhong (ORCID: https://orcid.org/0000-0002-8768-1843)
- Qiwen Zhang (ORCID: https://orcid.org/0000-0002-8505-263X)
- Hao Sun (ORCID: https://orcid.org/0000-0002-4563-5363)
- Xiaoxiao Huang (ORCID: https://orcid.org/0000-0002-2008-8949)
- Zhenghan Zhang
- Yali Li (ORCID: https://orcid.org/0009-0001-8648-2738)
- Fengge Wang (ORCID: https://orcid.org/0000-0001-6388-0349)
- Xiaoyan Luo (ORCID: https://orcid.org/0000-0003-3126-6699)
- Bo Zhong (ORCID: https://orcid.org/0009-0002-1616-9452)
- Jiaxi Sui
- Shilin Ling
Institutions
- Harbin Institute of Technology (CN)
- Soochow University (CN)
- Sehenstar Energy Technology (China) (CN)
- Suzhou Research Institute (CN)
- Weihai Science and Technology Bureau (CN)
- Nanjing University (CN)
Publication Details
- Journal
- Small
- Published
- 2025-09-01
- DOI
- https://doi.org/10.1002/smll.70437
- Primary Topic
- Extraction and Separation Processes
- Type
- article
- Field-Weighted Citation Impact
- 0.00