Metal-organic frameworks for direct electrochemical applications

Xu, Yuxia; Li, Qing; Xue, Huaiguo; Pang, Huan

doi:10.1016/j.ccr.2018.08.010

Cited by 447 publications

(184 citation statements)

References 240 publications

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“…One is to use MOF as a template to prepare MOF derivatives: metal oxides, metal nanoparticles, porous carbon compounds, etc . The other is that pure MOFs are directly applied to electrode materials for SCs and their capacitance are based on the reversible redox reactions of the metal centers . However, most MOFs lack adequate conductivity and chemical durability when utilized directly as SCs electrode materials, and their capacitance is usually low .…”

Section: Introductionmentioning

confidence: 99%

Exposing {001} Crystal Plane on Hexagonal Ni‐MOF with Surface‐Grown Cross‐Linked Mesh‐Structures for Electrochemical Energy Storage

Liu

et al. 2019

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Hexagonal nickel‐organic framework (Ni‐MOF) [Ni(NO3)2·6H2O, 1,3,5‐benzenetricarboxylic acid, 4‐4′‐bipyridine] is fabricated through a one‐step solvothermal method. The {001} crystal plane is exposed to the largest hexagonal surface, which is an ideal structure for electron transport and ion diffusion. Compared with the surrounding rectangular crystal surface, the ion diffusion length through the {001} crystal plane is the shortest. In addition, the cross‐linked porous mesh structures growing on the {001} crystal plane strengthen the mixing with conductive carbon, inducing preferable conductivity, as well as increasing the area of ion contact and the number of active sites. These advantages enable the hexagonal Ni‐MOF to exhibit excellent electrochemical performance as supercapacitor electrode materials. In a three‐electrode cell, specific capacitance of hexagonal Ni‐MOF in the 3.0 m KOH electrolyte is 977.04 F g−1 and remains at the initial value of 92.34% after 5,000 cycles. When the hexagonal Ni‐MOF and activated carbon are assembled into aqueous devices, the electrochemical performance remains effective.

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Section: Introductionmentioning

confidence: 99%

Exposing {001} Crystal Plane on Hexagonal Ni‐MOF with Surface‐Grown Cross‐Linked Mesh‐Structures for Electrochemical Energy Storage

Liu

et al. 2019

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“…Integrating MOFs with various functional materials is an effective and viable strategy to improve ORR performance along with new functionality . To date, numerous MOF composites have been successfully obtained by assembling MOFs with functional materials, which can be divided into two categories based on the distribution of the main active sites .…”

Section: Classification Of Mof‐based Orr Catalystsmentioning

confidence: 99%

Metal–Organic Frameworks Based Electrocatalysts for the Oxygen Reduction Reaction

et al. 2019

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In view of the clean and sustainable energy, metal–organic frameworks (MOFs) based materials, including pristine MOFs, MOF composites, and their derivatives are emerging as unique electrocatalysts for oxygen reduction reaction (ORR). Thanks to their tunable compositions and diverse structures, efficient MOF‐based materials provide new opportunities to accelerate the sluggish ORR at the cathode in fuel cells and metal–air batteries. This Minireview first provides some introduction of ORR and MOFs, followed by the classification of MOF‐based electrocatalysts towards ORR. Recent breakthroughs in engineering MOF‐based ORR electrocatalysts are highlighted with an emphasis on synthesis strategy, component, morphology, structure, electrocatalytic performance, and reaction mechanism. Finally, some current challenges and future perspectives for MOF‐based ORR electrocatalysts are also discussed.

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“…[6,20,21] Due to their high specific surface areas, large pore volumes, excellent pore size distributions and structural flexibility, [22][23][24][25] and the capabilities of catalytic activity and selectivity, [26,27] MOFs have been studied for use in catalysis, as well as many other applications, such as drug delivery/imaging, gas storage/separation, energy storage/conversion, etc. [6,20,21] Due to their high specific surface areas, large pore volumes, excellent pore size distributions and structural flexibility, [22][23][24][25] and the capabilities of catalytic activity and selectivity, [26,27] MOFs have been studied for use in catalysis, as well as many other applications, such as drug delivery/imaging, gas storage/separation, energy storage/conversion, etc.…”

Section: Introductionmentioning

confidence: 99%

Pristine Transition‐Metal‐Based Metal‐Organic Frameworks for Electrocatalysis

Sun

Xue

et al. 2019

ChemElectroChem

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Pristine metal‐organic frameworks (MOFs) and their composites, which have received wide attention in recent years, especially in the field of electrocatalysis, are emerging as distinctive electrocatalysts for the oxygen reduction reaction (ORR), hydrogen evolution reaction (HER), carbon dioxide reduction reaction (CO2RR), oxygen evolution reaction (OER), and many other electrochemical redox reactions. In this review, the attention is focused on the development of monometallic‐MOFs and multimetallic‐MOFs (including bimetallic‐MOFs and trimetallic‐MOFs) for electrocatalysis in recent years, including their design, catalytic performance and strategies for activity improvement. Finally, major challenges in utilizing pristine MOFs and their composites for electrocatalysis are highlighted.

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Metal-organic frameworks for direct electrochemical applications

Cited by 447 publications

References 240 publications

Exposing {001} Crystal Plane on Hexagonal Ni‐MOF with Surface‐Grown Cross‐Linked Mesh‐Structures for Electrochemical Energy Storage

Exposing {001} Crystal Plane on Hexagonal Ni‐MOF with Surface‐Grown Cross‐Linked Mesh‐Structures for Electrochemical Energy Storage

Metal–Organic Frameworks Based Electrocatalysts for the Oxygen Reduction Reaction

Pristine Transition‐Metal‐Based Metal‐Organic Frameworks for Electrocatalysis

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