Constructing regulable supports via non-stoichiometric engineering to stabilize ruthenium nanoparticles for enhanced pH-universal water splitting

Sheng Zhao, Sung-Fu Hung, Liming Deng, Wen-Jing Zeng, Tian Xiao, Shaoxiong Li, Chun-Han Kuo, Han-Yi Chen, Feng Hu and Shengjie Peng ()
Additional contact information
Sheng Zhao: Nanjing University of Aeronautics and Astronautics
Sung-Fu Hung: National Yang Ming Chiao Tung University
Liming Deng: Nanjing University of Aeronautics and Astronautics
Wen-Jing Zeng: National Yang Ming Chiao Tung University
Tian Xiao: Nanjing University of Aeronautics and Astronautics
Shaoxiong Li: Nanjing University of Aeronautics and Astronautics
Chun-Han Kuo: National Tsing Hua University
Han-Yi Chen: National Tsing Hua University
Feng Hu: Nanjing University of Aeronautics and Astronautics
Shengjie Peng: Nanjing University of Aeronautics and Astronautics

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: 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.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-024-46750-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46750-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-46750-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().