氮掺杂碳壳包覆Ru/Co-MOF-74催化硼氢化钠水解制氢性能研究

doi:10.11896/cldb.25040130

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Abstract Hydrogen energy, with its zero-carbon emissions, is a critical solution to address fossil fuel dependence and environmental pollution. Sodium borohydride (NaBH₄), renowned for its high hydrogen content (10.8%) and chemical stability, offers a promising approach for hydrogen storage and transportation, particularly for portable fuel cells and emergency hydrogen sources. However, its sluggish room-temperature hydrolysis reaction necessitates the development of efficient catalysts to enhance hydrogen generation rate (HGR). In this study, a nitrogen-doped carbon-coated Ru/Co-MOF-74 composite catalyst (Ru/Co-MOF-74-NC) was synthesized via a solvothermal method combined with polydopamine-derived carbon coating. This core-shell structure, coupled with Ru-Co synergistic effects and nitrogen-doped carbon encapsulation, significantly improved the catalytic performance of NaBH₄ hydrolysis. The results showed that under the catalytic action of Ru/Co-MOF-74-NC at 303 K, the HGR reached 6 354.2 mL·min^-1·g^-1, with the activation energy reduced to 32.1 kJ·mol^-1 due to the synergistic interaction between Ru and Co. Notably, the nitrogen-doped carbon layer effectively suppressed Ru nanoparticle agglomeration and leaching, enhancing catalytic stability. After 8 cycles, the catalyst retained 79.3% of its initial activity, demonstrating its robustness for practical applications. This work provides a novel strategy for designing high-performance catalysts for hydrogen storage systems.

Key words： sodium borohydride catalyst Co-MOF-74 ruthenium synergistic effect hydrogen generation

Received: 10 May 2026 Published: Online: 2026-05-18

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TB34

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	Articles by authors
	WANG Yijie
	SUN Lixian
	XU Fen
	PENG Xuan
	WANG Hehui
	ZHAO Zhongxian
	SU Yanming

Cite this article:

WANG Yijie,SUN Lixian,XU Fen, et al. Nitrogen-doped Carbon Shell-encapsulated Ru/Co-MOF-74 Catalyst for Enhanced Hydrogen Production via Sodium Borohydride Hydrolysis[J]. Materials Reports, 2026, 40(9): 25040130-8.

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https://www.mater-rep.com/EN/10.11896/cldb.25040130 OR https://www.mater-rep.com/EN/Y2026/V40/I9/25040130

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