Locking interstitial hydrogen atoms in Pd metallenes for efficient oxygen reduction reaction

Yu Qiu, Dongxu Jiao, Hong Huang, Jiandong Wu, Mingming Wang, Tianyi Gao, Xiao Zhao, Xin Ge, Wei Zhang, Weitao Zheng, David J. Singh, Jinchang Fan () and Xiaoqiang Cui ()
Additional contact information
Yu Qiu: Jilin University
Dongxu Jiao: Jilin University
Hong Huang: Jilin University
Jiandong Wu: The Third Bethune Hospital of Jilin University
Mingming Wang: Jilin University
Tianyi Gao: Jilin University
Xiao Zhao: Jilin University
Xin Ge: Jilin University
Wei Zhang: Jilin University
Weitao Zheng: Jilin University
David J. Singh: University of Missouri
Jinchang Fan: Jilin University
Xiaoqiang Cui: Jilin University

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract Palladium hydride (PdHx) metallenes are efficient electrocatalysts for the oxygen reduction reaction (ORR) due to their high atomic utilization and optimized oxygen binding energies modulated by interstitial hydrogen. However, their practical application is restricted by the highly unstable nature of interstitial hydrogen at working temperatures around 353 K. Here, we report that the use of Mn effectively locks hydrogen atoms within the Pd metallenes lattice, resulting in high alkaline ORR performance across a temperature range of 303–353 K. In contrast, the ORR activity of PdHx metallenes declines sharply with increasing temperature. At 353 K, the mass activity of PdMnHx metallenes at 0.95 V reaches 1.41 A mg−1, which is 14.1 times higher than that of PdHx metallenes. Multiple spectroscopic analyses and theoretical calculations reveal that strong electronic interactions within the immiscible Pd-Mn alloy are critical for locking interstitial hydrogen, thereby enhancing the ORR activity under high temperatures.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-61524-4 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:16:y:2025:i:1:d:10.1038_s41467-025-61524-4

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

DOI: 10.1038/s41467-025-61524-4

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 ().