【摘 要】
：
A novel microporous two-dimensional (2D) Ni-based phosphonate metal-organic framework (MOF;denoted as IEF-13) has been successfully synthesized by a simple and
【机 构】
：
IMDEA Energy,Advanced Porous Materials Unit (APMU),Avda.Ramón de la Sagra 3,E-28935 Móstoles,Madrid,
论文部分内容阅读
A novel microporous two-dimensional (2D) Ni-based phosphonate metal-organic framework (MOF;denoted as IEF-13) has been successfully synthesized by a simple and green hydrothermal method and fully characterized using a combination of experimental and computational techniques.Structure resolution by single-crystal X-my diffraction reveals that IEF-13 crystallizes in the triclinic space group P(1) having bi-octahedra nickel nodes and a photo/electroactive tritopic phosphonate ligand.Remarkably,this material exhibits coordinatively unsaturated nickel(Ⅱ) sites,free-PO3H2 and-PO3H acidic groups,a CO2 accessible microporosity,and an exceptional thermal and chemical stability.Further,its in-deep optoelectronic characterization evidences a photoresponsa suitable for phctocatalysis.In this sense,the phctocatalytic activity for challenging H2 generation and overall water splitting in absence of any co-catalyst using UV-Vis irradiation and simulated sunlight has been evaluated,constituting the first report for a phosphonate-MOF photocatalyst.IEF-13 is able to produce up to 2,200 μmol of H2 per gram using methanol as sacrificial agent,exhibiting stability,maintaining its crystal structure and allowing its recycling.Even more,170 μmol of H2 per gram were produced using IEF-13 as photocatalyst in the absence of any co-catalyst for the overall water splitting,being this reaction limited by the O2 reduction.The present work opens new avenues for further optimization of the photocatalytic activity in this type of multifunctional materials.
其他文献
We report a microporous aluminum-based metal-organic framework (MOF),BUT-22 for high methane (CH4),hydrogen (H2),and carbon dioxide (CO2) storage.At 296 K and 8
The precise control on the combination of multiple metal atoms in the structure of metal-organic frameworks (MOFs) endowed by reticular chemistry,allows the obt
Nanozymes are nanomaterials with enzyme-like properties that have attracted significant interest owing to their capability to address the limitations of traditi
The aerobic oxidation of monoalcohols and diols to acetals is an important academic and industrial challenge for the production of fine chemicals and intermedia
While metal nanoparticles (NPs) have shown great promising applications as heterogeneous catalysts,their agglomeration caused by thermodynamic instability is de
Due to the high specific surface area,abundant nitrogen and micropores,ZIF-8 is a commonly used precursor for preparing high performance Fe-N-C catalysts.Howeve
Rechargeable Al-ion batteries (AlBs) are considered as one of the most fascinating energy storage systems due to abundant Al resource and low cost.However,the c
Single molecule protein sequencing would tremendously impact in proteomics and human biology and it would promote the development of novel diagnostic and therap
Safely and highly selective acetylene (C2H2) capture is a great challenge,because of its highly explosive nature,as well as its nearly similar molecule size and
The precise control of the crystal morphology of metal-organic frameworks (MOFs) enables optimization of its adsorptive properties,as well as enables better int