Engineering Ruthenium Species on Metal–organic Frameworks for Water Electrolysis at Industrial Current Densities

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2024-12-11 DOI:10.1002/aenm.202404714

Dequan Li, Mingpeng Chen, Di Liu, Congcong Shen, Huachuan Sun, Yuxiao Zhang, Tianwei He, Qingjie Lu, Bo Li, Tong Zhou, BoXue Wang, Yuewen Wu, Guohao Na, Yun Chen, Jianhong Zhao, Yumin Zhang, Jin Zhang, Feng Liu, Hao Cui, Qingju Liu

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引用次数: 0

Abstract

Developing highly active and stable electrocatalysts for hydrogen production at industrial current densities is pivotal to give an impetus to carbon neutrality. Recently, metal–organic frameworks (MOFs) with large surface area and adjustable structures have become a class of promising alternative electrocatalysts, while their low conductivity and poor stability limit their widespread applications. Here, a modified strategy is proposed to stabilize and modulate Ruthenium (Ru) species including Ru single atoms (Ru SAs) and Ru nanoparticles (Ru NPs) on MOFs for enhanced hydrogen evolution reaction (HER). Benefiting from the strong interaction between Ru and MOFs, the synthesized NiFeRu_SA+NP-DOBDC (DOBDC: 2,5-dioxido-1,4-benzenedicarboxylate) exhibits an extraordinary HER performance with overpotentials of 25 and 271 mV at 10 and 1000 mA cm⁻², respectively. Meanwhile, it enables robust HER at a high current density of 1 A cm⁻² over 300 h. Remarkably, the assembled anion exchange membrane (AEM) electrolyzer realizes a low voltage for alkaline water electrolysis. In situ analyses demonstrate that NiFeRu_SA+NP-DOBDC enables optimized H₂O adsorption and dissociation, and theoretical calculations indicate that Ru SAs and NPs accelerate the Volmer-Heyrovsky pathway, synergistically promoted the HER performance. This work presents a competitive strategy to integrate supported metal species on the MOFs platform to efficiently drive industrial water electrolysis.

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.