One-step microwave hydrothermal preparation of Cd/Zr-bimetallic metal–organic frameworks for enhanced photochemical properties

Cheng, Wei; Wang, Ying‐Ming; Ge, Shengsong; Ding, Xiaoqian; Cui, Zhiwen; Shao, Qian

doi:10.1007/s42114-020-00199-5

Cited by 108 publications

(34 citation statements)

References 53 publications

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“…Metal organic frameworks (MOFs) are a new type of material formed by the self-assembly of metal cations with organic ligands, which have the advantages of large surface area, low density, and high porosity [21][22][23][24]. However, individual MOFs have not yet been extensively applied in EMW-absorbing materials as a result of poor dielectric properties [25].…”

Section: Introductionmentioning

confidence: 99%

Construction of 1D Heterostructure NiCo@C/ZnO Nanorod with Enhanced Microwave Absorption

et al. 2021

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Layered double hydroxides (LDHs) have a special structure and atom composition, which are expected to be an excellent electromagnetic wave (EMW) absorber. However, it is still a problem that obtaining excellent EMW-absorbing materials from LDHs. Herein, we designed heterostructure NiCo-LDHs@ZnO nanorod and then subsequent heat treating to derive NiCo@C/ZnO composites. Finally, with the synergy of excellent dielectric loss and magnetic loss, an outstanding absorption performance could be achieved with the reflection loss of − 60.97 dB at the matching thickness of 2.3 mm, and the widest absorption bandwidth of 6.08 GHz was realized at 2.0 mm. Moreover, this research work provides a reference for the development and utilization of LDHs materials in the field of microwave absorption materials and can also provide ideas for the design of layered structural absorbers.

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Section: Introductionmentioning

confidence: 99%

Construction of 1D Heterostructure NiCo@C/ZnO Nanorod with Enhanced Microwave Absorption

et al. 2021

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“…Nevertheless, the poor permittivity and single attrition mechanism of monometallic MOFs cannot satisfy the demand for unusual EM wave absorption (EMA) performance. [6][7][8][9] As the prospective EMA materials, heteropoly polymetal MOFs with varied metal centers, and electronic and topological structures have always been a frontier topic in EM wave absorption (EMA). [10,11] In addition, using heteropolistic polymetal MOFs to prepare polymetallic/carbon-composite absorbers provides new possibilities for investigating novel efficient EMA materials.…”

mentioning

confidence: 99%

Oxygen Vacancy‐Induced Dielectric Polarization Prevails in the Electromagnetic Wave‐Absorbing Mechanism for Mn‐Based MOFs‐Derived Composites

Liu

Zhou

Jia

et al. 2022

Adv Funct Materials

219

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Polymeric metal-organic framework (MOF)-derived composites are promising functional materials because of their exceptional chemical homogeneity, designable components, and adjustable pore size. The modulation of oxygen and Mn vacancies via the introduction of heteroatoms and changes in the annealing temperature in MOFs-derived composites can be a possible solution to investigate the polarization loss mechanism, which facilitates the improvement of electromagnetic loss capacity. Herein, the design of laminate-stacked sphere-shaped trimetallic CoNiMn-MOFs is presented. The derived CoNi/ MnO@C composites retain the original topography of the MOFs. The concentration of oxygen vacancies increases with the incorporation of heteroatoms, but decreases with annealing temperature, which prevails in the polarization loss mechanism rather than the contribution of Mn 2+ vacancies and heterogeneous interfaces. Therefore, the minimum reflection loss of the CoNi/MnO@C sample demonstrates −55.2 dB at 2.6 mm and the broad effective absorption bandwidth reaches 8.0 GHz at 2.1 mm. This work is expected to provide meaningful insights into the significant effect of ion vacancy modulation on the EM wave-absorbing performance of Mn-based MOFs-derived composites.

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“…With the rapid development of electronic and communication equipment, microwaves not only bring convenience to our life and industrial production but also bring the problem of serious electromagnetic pollution. [1][2][3][4][5][6][7][8] Microwave absorption (MA) materials undoubtedly are an effective way to solve this problem. [9][10][11][12][13][14][15][16][17][18] MA materials that are light weight and thin and have strong absorption capacity and wide bandwidth are considered to be of great value.…”

Section: Introductionmentioning

confidence: 99%

High performance microwave absorption of light weight and porous non-carbon-based polymeric monoliths via a gel emulsion template

Zhang

Song

et al. 2022

Polym. Chem.

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One-step microwave hydrothermal preparation of Cd/Zr-bimetallic metal–organic frameworks for enhanced photochemical properties

Cited by 108 publications

References 53 publications

Construction of 1D Heterostructure NiCo@C/ZnO Nanorod with Enhanced Microwave Absorption

Construction of 1D Heterostructure NiCo@C/ZnO Nanorod with Enhanced Microwave Absorption

Oxygen Vacancy‐Induced Dielectric Polarization Prevails in the Electromagnetic Wave‐Absorbing Mechanism for Mn‐Based MOFs‐Derived Composites

High performance microwave absorption of light weight and porous non-carbon-based polymeric monoliths via a gel emulsion template

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