Phthalocyanine-Based 2D Conjugated Metal-Organic Framework Nanosheets for High-Performance Micro-Supercapacitors

Wang M, Shi H, Zhang P, Liao Z, Wang M, Zhong H, Schwotzer F, Nia AS, Zschech E, Zhou S, Kaskel S, Dong R, Feng X (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Advanced Functional Materials Wiley-VCH Verlag

Book Volume: 30

Article Number: 2002664

Journal Issue: 30

DOI: 10.1002/adfm.202002664

Abstract

2D conjugated metal-organic frameworks (2D c-MOFs) are emerging as a novel class of conductive redox-active materials for electrochemical energy storage. However, developing 2D c-MOFs as flexible thin-film electrodes have been largely limited, due to the lack of capability of solution-processing and integration into nanodevices arising from the rigid powder samples by solvothermal synthesis. Here, the synthesis of phthalocyanine-based 2D c-MOF (Ni2[CuPc(NH)8]) nanosheets through ball milling mechanical exfoliation method are reported. The nanosheets feature with average lateral size of ≈160 nm and mean thickness of ≈7 nm (≈10 layers), and exhibit high crystallinity and chemical stability as well as a p-type semiconducting behavior with mobility of ≈1.5 cm2 V−1 s−1 at room temperature. Benefiting from the ultrathin feature, the nanosheets allow high utilization of active sites and facile solution-processability. Thus, micro-supercapacitor (MSC) devices are fabricated mixing Ni2[CuPc(NH)8] nanosheets with exfoliated graphene, which display outstanding cycling stability and a high areal capacitance up to 18.9 mF cm−2; the performance surpasses most of the reported conducting polymers-based and 2D materials-based MSCs.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Fraunhofer-Institut für Keramische Technologien und Systeme (IKTS) DE Germany (DE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR) DE Germany (DE)

How to cite

APA:

Wang, M., Shi, H., Zhang, P., Liao, Z., Wang, M., Zhong, H.,... Feng, X. (2020). Phthalocyanine-Based 2D Conjugated Metal-Organic Framework Nanosheets for High-Performance Micro-Supercapacitors. Advanced Functional Materials, 30(30). https://doi.org/10.1002/adfm.202002664

MLA:

Wang, Mingchao, et al. "Phthalocyanine-Based 2D Conjugated Metal-Organic Framework Nanosheets for High-Performance Micro-Supercapacitors." Advanced Functional Materials 30.30 (2020).

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