Academic Journal
Constructing regulable supports via non-stoichiometric engineering to stabilize ruthenium nanoparticles for enhanced pH-universal water splitting
| Title: | Constructing regulable supports via non-stoichiometric engineering to stabilize ruthenium nanoparticles for enhanced pH-universal water splitting |
|---|---|
| Authors: | Sheng Zhao, Sung-Fu Hung, Liming Deng, Wen-Jing Zeng, Tian Xiao, Shaoxiong Li, Chun-Han Kuo, Han-Yi Chen, Feng Hu, Shengjie Peng |
| Source: | Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024) |
| Publisher Information: | Nature Portfolio, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Science |
| Subject Terms: | Science |
| More Details: | Abstract Establishing appropriate metal-support interactions is imperative for acquiring efficient and corrosion-resistant catalysts for water splitting. Herein, the interaction mechanism between Ru nanoparticles and a series of titanium oxides, including TiO, Ti4O7 and TiO2, designed via facile non-stoichiometric engineering is systematically studied. Ti4O7, with the unique band structure, high conductivity and chemical stability, endows with ingenious metal-support interaction through interfacial Ti–O–Ru units, which stabilizes Ru species during OER and triggers hydrogen spillover to accelerate HER kinetics. As expected, Ru/Ti4O7 displays ultralow overpotentials of 8 mV and 150 mV for HER and OER with a long operation of 500 h at 10 mA cm−2 in acidic media, which is expanded in pH-universal environments. Benefitting from the excellent bifunctional performance, the proton exchange membrane and anion exchange membrane electrolyzer assembled with Ru/Ti4O7 achieves superior performance and robust operation. The work paves the way for efficient energy conversion devices. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2041-1723 |
| Relation: | https://doaj.org/toc/2041-1723 |
| DOI: | 10.1038/s41467-024-46750-6 |
| Access URL: | https://doaj.org/article/ea9495a580084e5caa4e0affebb0b5f8 |
| Accession Number: | edsdoj.9495a580084e5caa4e0affebb0b5f8 |
| Database: | Directory of Open Access Journals |
Be the first to leave a comment!