Hybrids of Pd Nanoparticles and Metal-Organic Frameworks for Enhanced Magnetism.
Suhwan Kim,Raeesh Muhammad,Peter Schuetzenduebe,Suresh Babu Kalidindi,Gisela Schütz,Hyunchul Oh,Kwanghyo Son +6 more
TLDR
In this article, a combination of magnetic Pd NPs with UiO-66(Hf), which exhibits ferromagnetism, and corresponding modifications in the hybridized structures are found to be strongly ferromagnetic, showing high magnetization and coercivity.Abstract:
Nonmagnetic Pd exhibits ferromagnetism in the nanosize regime. Various stabilization agents, including surfactants, metal oxide supports, polymers, and porous materials (e.g., metal-organic frameworks (MOFs)), have been employed to prevent the agglomeration of metal nanoparticles. However, magnetic properties are greatly affected by the structural and electronic changes imposed by these stabilizing agents. In particular, metal-MOF hybrids (NPs@MOFs) have reduced magnetic properties, as reported by several authors. Herein, we report the enhancement in magnetic properties resulting from the combination of magnetic Pd NPs with UiO-66(Hf), which exhibits ferromagnetism, and the corresponding modifications in the hybridized structures. These hybridized structures are found to be strongly ferromagnetic, showing high magnetization and coercivity. We observed that the magnetic property is enhanced by 2 to 3 times upon including the Pd NPs on the surface of a UiO-66(Hf) shell support. For a fundamental understanding, the magnetization (M-H data) of the hybridized structure is analyzed with a modified Langevin function.read more
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References
More filters
Journal ArticleDOI
Reticular synthesis and the design of new materials
Omar M. Yaghi,Michael O'Keeffe,Nathan W. Ockwig,Hee K. Chae,Hee K. Chae,Mohamed Eddaoudi,Jaheon Kim +6 more
TL;DR: This work has shown that highly porous frameworks held together by strong metal–oxygen–carbon bonds and with exceptionally large surface area and capacity for gas storage have been prepared and their pore metrics systematically varied and functionalized.
Journal ArticleDOI
Diamagnetic Corrections and Pascal's Constants
Gordon A. Bain,John F. Berry +1 more
TL;DR: In this paper, the authors present an explanation for the origin of the diamagnetic correction factors, organized tables of constants compiled from many sources, a simple method for estimating the correct order of magnitude for the diamagnetism correction for any given compound, and a clear explanation of how to use the tabulated constants to calculate the magnetic susceptibility.
Journal ArticleDOI
Imparting functionality to a metal–organic framework material by controlled nanoparticle encapsulation
Guang Lu,Shaozhou Li,Zhen Guo,Omar K. Farha,Brad G. Hauser,Xiaoying Qi,Yi Wang,Xin Wang,Sanyang Han,Xiaogang Liu,Xiaogang Liu,Joseph S. DuChene,Hua Zhang,Qichun Zhang,Xiaodong Chen,Jan Ma,Say Chye Joachim Loo,Wei David Wei,Yanhui Yang,Joseph T. Hupp,Fengwei Huo +20 more
TL;DR: A controlled encapsulation strategy is reported that enables surfactant-capped nanostructured objects of various sizes, shapes and compositions to be enshrouded by a zeolitic imidazolate framework (ZIF-8).
Journal ArticleDOI
Metal–organic frameworks meet metal nanoparticles: synergistic effect for enhanced catalysis
TL;DR: An overview of significant progress in the development of MNP/MOF composites, including various preparation strategies and characterization methods as well as catalytic applications is provided, with special emphasis on synergistic effects between the two components that result in an enhanced performance in heterogeneous catalysis.
Journal ArticleDOI
Ferromagnetism as a universal feature of nanoparticles of the otherwise nonmagnetic oxides
TL;DR: In this paper, it was shown that room-temperature ferromagnetism has been observed in nanoparticles of nonmagnetic oxides such as (1), (2), (3), (4), (5), (6), (7,30), and (6,30).