Anodic electrodeposition of continuous metal-organic framework films with robust adhesion by pre-anchored strategy

Guo, Wei; Monnens, Wouter; Zhang, Wei; Xie, Sijie; Han, Ning; Zhou, Zhenyu; Chanut, Nicolas; Vanstreels, Kris; Ameloot, Rob; Zhang, Xuan; Fransaer, Jan

doi:10.1016/j.micromeso.2023.112443

Cited by 13 publications

(6 citation statements)

References 41 publications

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“…The voids and cracks are formed between the crystalline MOF particles and Zn substrate, gradually weakening the adhesion and ultimately leading to its detachment. 16 Interestingly, under identical test conditions, the A-ZIF-8 layer with no voids and cracks is still compressed rather than detached from the Zn foil surface at a scratch distance of 250 μm, which was confirmed by the SEM image (Figure S14A).…”

Section: Structural Characterization Of Continuous A-zif-8mentioning

confidence: 60%

“…15 (2) The rigid lattice structures of crystalline MOFs usually have poor mechanical properties, leading to structural failure caused by the volume change of the metal anode during cycling. 16 (3) Polycrystalline MOFs possess a multitude of grain boundaries where dendrites grow favorably causing irreversible damage to the MOF protective layer. 17 This can be attributed to the combination of electrons with metal ions at the grain boundary, which shows relatively high electron conductivity, and then reduces the metal ions, resulting in a short circuit, 18 which is one of the key issues for ceramic solid electrolytes as well.…”

Section: Introductionmentioning

confidence: 99%

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Continuous Amorphous Metal–Organic Frameworks Layer Boosts the Performance of Metal Anodes

Xiang,

Zhou,

Tan

et al. 2023

ACS Nano

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Employing metal anodes can greatly increase the volumetric/gravimetric energy density versus a conventional ion-insertion anode. However, metal anodes are plagued by dendrites, corrosion, and interfacial side reaction issues. Herein, a continuous and flexible amorphous MOF layer was successfully synthesized and used as a protective layer on metal anodes. Compared with the crystalline MOF layer, the continuous amorphous MOF layer can inhibit dendrite growth at the grain boundary and eliminate ion migration near the grain boundary, showing high interfacial adhesion and a large ion migration number (t Zn 2+ = 0.75). In addition, the continuous amorphous MOF layer can effectively solve several key challenges, e.g., corrosion of the zinc anode, hydrogen evolution reaction, and dendrite growth on the zinc surface. The prepared Zn anode with the continuous amorphous MOF (A-MOF) layer exhibited an ultralong cycling life (around one year, more than 7900 h) and a low overpotential (<40 mV), which is 12 times higher than that of the crystalline MOF protective layer. Even at 10 mA cm–2, it still showed high stability for more than 5500 cycles (1200 h). The enhanced performance is realized for full cells paired with a MnO2 cathode. In addition, a flexible symmetrical battery with the Zn@A-ZIF-8 anode exhibited good cyclability under different bending angles (0°, 90°, and 180°). More importantly, various metal substrates were successfully coated with compact A-ZIF-8. The A-ZIF-8 layer can obviously improve the stability of other metal anodes, including those of Mg and Al. These results not only demonstrate the high potential of amorphous MOF-decorated Zn anodes for AZIBs but also propose a type of protective layer for metal anodes.

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Section: Structural Characterization Of Continuous A-zif-8mentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Continuous Amorphous Metal–Organic Frameworks Layer Boosts the Performance of Metal Anodes

Xiang,

Zhou,

Tan

et al. 2023

ACS Nano

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“…2.1.1 Metal substrates. As expected, a diverse selection of different conducting metal substrates such as nickel (Ni), 51 zinc (Zn), 52 aluminum (Al), [53][54][55] gold (Au), [56][57][58][59][60][61] titanium (Ti), 62,63 copper (Cu), [64][65][66][67][68][69] Cu foams, [70][71][72][73][74] Ni foams, [75][76][77][78][79][80][81][82][83][84][85][86][87][88][89] and iridium (Ir) 90 have been proven to be excellent substrates to efficiently construct MOF crystals under specic conditions. To be mentioned, many self-sacricial materials can be used as both metal sources and substrates.…”

Section: Metal Oxides; Electrodes; Carbon-based Materials; Polymersmentioning

confidence: 93%

Metal–organic frameworks on versatile substrates

Zhong¹,

Qian²,

Wang³

et al. 2023

J. Mater. Chem. A

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“…2a). 29–31 The substantial specific surface area and high porosity of MOFs facilitate the accessibility of active sites, fostering the generation of charge–hole pairs. 32,33 Their structural customizability allows efficient band gap engineering and the incorporation of additional catalytic centers.…”

Section: Classification Of Reticular Framework Materials and Respecti...mentioning

confidence: 99%

Immobilization of metal active centers in reticular framework materials for photocatalytic energy conversion

Wang,

Guo,

et al. 2024

J. Mater. Chem. A

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Anodic electrodeposition of continuous metal-organic framework films with robust adhesion by pre-anchored strategy

Cited by 13 publications

References 41 publications

Continuous Amorphous Metal–Organic Frameworks Layer Boosts the Performance of Metal Anodes

Continuous Amorphous Metal–Organic Frameworks Layer Boosts the Performance of Metal Anodes

Metal–organic frameworks on versatile substrates

Immobilization of metal active centers in reticular framework materials for photocatalytic energy conversion

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