Twin-distortion modulated ultra-low coordination PtRuNi-Ox catalyst for enhanced hydrogen production from chemical wastewater

Yue Zhang, Xueqin Mu, Zhengyang Liu, Hongyu Zhao, Zechao Zhuang, Yifan Zhang, Shichun Mu, Suli Liu (), Dingsheng Wang () and Zhihui Dai ()
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Yue Zhang: Nanjing Tech University
Xueqin Mu: Wuhan University of Technology Institution
Zhengyang Liu: Nanjing Tech University
Hongyu Zhao: Wuhan University of Technology Institution
Zechao Zhuang: Tsinghua University
Yifan Zhang: Nanjing Tech University
Shichun Mu: Wuhan University of Technology Institution
Suli Liu: Nanjing Tech University
Dingsheng Wang: Tsinghua University
Zhihui Dai: Nanjing Tech University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract The development of efficient and robust catalysts for hydrogen evolution reaction is crucial for advancing the hydrogen economy. In this study, we demonstrate that ultra-low coordinated hollow PtRuNi-Ox nanocages exhibit superior catalytic activity and stability across varied conditions, notably surpassing commercial Pt/C catalysts. Notably, the PtRuNi-Ox catalysts achieve current densities of 10 mA cm−2 at only 19.6 ± 0.1, 20.9 ± 0.1, and 21.0 ± 0.1 mV in alkaline freshwater, chemical wastewater, and seawater, respectively, while maintaining satisfied stability with minimal activity loss after 40,000 cycles. In situ experiments and theoretical calculations reveal that the ultra-low coordination of Pt, Ru, and Ni atoms creates numerous dangling bonds, which lower the water dissociation barrier and optimizing hydrogen adsorption. This research marks a notable advancement in the precise engineering of atomically dispersed multi-metallic centers in catalysts for energy-related applications.

Date: 2024
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DOI: 10.1038/s41467-024-54513-6

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