Amorphous MOFs for next generation supercapacitors and batteries

Wang, Wupeng; Chai, Milton; Lin, Rijia; Yuan, Fangfang; Wang, Luyao; Chen, Vicki; Hou, Jingwei

doi:10.1039/d3ya00306j

“…54,211,212 A perspective has been recently published outlining the potential future benefits of aMOFs within electrochemistry, because of the potential for improved close packing and orbital overlap for interfacial charge transfer in aMOFs. 213…”

Section: Applicationsmentioning

confidence: 99%

Synthetic and analytical considerations for the preparation of amorphous metal–organic frameworks

Shaw,

Chester,

Robertson

et al. 2024

Chem. Sci.

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Enhanced Charge Transfer Process and Photocatalytic Activity over a Phosphonate‐based MOF via Amorphization Strategy

Zhang,

Liu,

Zheng

et al. 2024

Angewandte Chemie

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Recently, amorphous materials have gained great attention as an emerging kind of functional material, and their characteristics such as isotropy, absence of grain boundaries, and abundant defects are very likely to outrun the disadvantages of crystalline counterparts, such as low conductivity, and ultimately lead to improved charge transfer efficiency. Herein, we investigated the effect of amorphization on the charge transfer process and photocatalytic performance with a phosphonate‐based metal organic framework (FePPA) as the research object. Comprehensive experimental results suggest that compared to crystalline FePPA, amorphous FePPA has more distorted metal nodes, which affects the electron distribution and consequently improves the photogenerated charge separation efficiency. Meanwhile, the distorted metal nodes in amorphous FePPA also greatly promote the adsorption and activation of O2. Hence, amorphous FePPA exhibits a better performance of photocatalytic C(sp3)‐H bond activation for selective oxidation of toluene to benzaldehyde. This work illustrates the advantages of amorphous MOFs in the charge transfer process, which is conducive to the further development of high performance MOFs‐based photocatalysts.

show abstract

Enhanced Charge Transfer Process and Photocatalytic Activity over a Phosphonate‐based MOF via Amorphization Strategy

Zhang,

Liu,

Zheng

et al. 2024

Angew Chem Int Ed

6

0

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Recently, amorphous materials have gained great attention as an emerging kind of functional material, and their characteristics such as isotropy, absence of grain boundaries, and abundant defects are very likely to outrun the disadvantages of crystalline counterparts, such as low conductivity, and ultimately lead to improved charge transfer efficiency. Herein, we investigated the effect of amorphization on the charge transfer process and photocatalytic performance with a phosphonate‐based metal organic framework (FePPA) as the research object. Comprehensive experimental results suggest that compared to crystalline FePPA, amorphous FePPA has more distorted metal nodes, which affects the electron distribution and consequently improves the photogenerated charge separation efficiency. Meanwhile, the distorted metal nodes in amorphous FePPA also greatly promote the adsorption and activation of O2. Hence, amorphous FePPA exhibits a better performance of photocatalytic C(sp3)‐H bond activation for selective oxidation of toluene to benzaldehyde. This work illustrates the advantages of amorphous MOFs in the charge transfer process, which is conducive to the further development of high performance MOFs‐based photocatalysts.

show abstract

Amorphous MOFs for next generation supercapacitors and batteries

Abstract: Metal-organic frameworks (MOFs) are porous materials comprised of metal nodes and organic linkers, which feature highly tunable structures and compositions that can be tailored for energy storage applications. While MOFs...

Cited by 8 publications

References 113 publications

Synthetic and analytical considerations for the preparation of amorphous metal–organic frameworks

Synthetic and analytical considerations for the preparation of amorphous metal–organic frameworks

Enhanced Charge Transfer Process and Photocatalytic Activity over a Phosphonate‐based MOF via Amorphization Strategy

Enhanced Charge Transfer Process and Photocatalytic Activity over a Phosphonate‐based MOF via Amorphization Strategy

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