General Synthesis of MOF Nanotubes via Hydrogen-Bonded Organic Frameworks toward Efficient Hydrogen Evolution Electrocatalysts
General Synthesis of MOF Nanotubes via Hydrogen-Bonded Organic Frameworks toward Efficient Hydrogen Evolution Electrocatalysts
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DOI：
10.1021/acsnano.2c08245
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发表时间：
2022-12-02
期刊：
影响因子：
17.1
通讯作者：
Fujita, Takeshi
中科院分区：
文献类型：
--
作者：
Cai, Ze-Xing;Xia, Yanjie;Fujita, Takeshi
金属有机骨架（MOFs）的应用范围可以通过合理设计MOFs的结构和组成来扩展，这可以通过含金属的固体模板策略来实现。然而，这种策略效率低，并且仅从一个模板提供一个特定的MOF。在此，我们提出了一种通用的模板策略，其中有机配体编织成氢键有机框架（HOFs）的可控和可扩展的MOF纳米管的合成。通过简单的声化学方法由苯-1，3，5-三羧酸和三聚氰胺组装的霍夫纳米线作为模板和前体来制备具有不同金属组成的MOF纳米管。通过碳化工艺制备的含有纳米金属晶体和N掺杂石墨烯的杂化纳米管表明，优化的NiRuIr合金@NG纳米管在碱性介质中具有优异的电催化HER活性和耐久性，优于大多数已报道的催化剂。本文提出的策略展示了霍夫和MOF结合的开创性研究，这在设计具有各种结构和组合物的其他纳米级MOF以用于潜在应用中显示出巨大的潜力。
The application scope of metal-organic frameworks (MOFs) can be extended by rationally designing the architecture and components of MOFs, which can be achieved via a metal-containing solid templated strategy. However, this strategy suffers from low efficiency and provides only one specific MOF from one template. Herein, we present a versatile templated strategy in which organic ligands are weaved into hydrogen-bonded organic frameworks (HOFs) for the controllable and scalable synthesis of MOF nanotubes. HOF nanowires assembled from benzene-1,3,5-tricarboxylic acid and melamine via a simple sonochemical approach serve as both the template and precursor to produce MOF nanotubes with varied metal compositions. Hybrid nanotubes containing nanometal crystals and N-doped graphene prepared through a carbonization process show that the optimized NiRuIr alloy@NG nanotube exhibits excellent electrocatalytic HER activity and durability in alkaline media, outperforming most reported catalysts. The strategy proposed here demonstrates a pioneering study of combination of HOF and MOF, which shows great potential in the design of other nanosized MOFs with various architectures and compositions for potential applications.