Nanoengineering of a Magnetically Separable Hydrogenation Catalyst

Lu, An‐Hui; Schmidt, Wolfgang; Matoussevitch, Nina; Bönnemann, Helmut; Spliethoff, Bernd; Tesche, B.; Bill, Eckhard; Kiefer, W.; Schüth, Ferdi

doi:10.1002/anie.200454222

Cited by 514 publications

(222 citation statements)

References 13 publications

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“…Nanocomposites obtained from the hard-template approach combine the single-crystalline components with large surface areas and uniformly nanoporous confinement which may derive unexpected characters (110). Mesoporous tinbased oxide/carbon composite (ONTC) prepared from a mesoporous carbon CMK-3 template offers a promising negative-electrode material in lithium-ion battery (111).…”

Section: ) Optical and Electronic Applicationsmentioning

confidence: 99%

“…[Cdi 0 Si 6 ] 4+ is a soluble cadmium sulfide cluster with ample -OH groups, which is structurally comparative with Figure 17. TEM images of ordered mesoporous graphitized carbon with bicontinuous cubic Ia3d symmetry along the [110] (a), [111] …”

Section: ) Enhancing the Interaction Between Precursors Themselvesmentioning

confidence: 99%

“…After we recall the manufacture of ordered mesoporous silicates, the assembly of organic surfactant and inorganic precursor in a dilute aqueous [100] and [110] solution is now considered to be a facile, low-cost and versatile approach which has been demonstrated to be feasible in the industrial production. Can the organic mesoporous materials and homologous carbons with open frameworks be prepared in aqueous media?…”

Section: Surfactant Self-assembly Approachmentioning

confidence: 99%

“…These materials show high surface areas, uniform pore sizes and tunable periodic structures, which may cause fascinating chemical and physical properties. [110] and [100] directions, b) cubic bicontinuous (Ia^\d) TiPO along [111] 2) Organic-organic self-assembly…”

Section: Surfactant Self-assembly Approachmentioning

confidence: 99%

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General Synthesis of Ordered Nonsiliceous Mesoporous Materials

Wan

Yang

Zhao

2008

ACS Symposium Series

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The design of ordered nonsiliceous mesoporous materials is illustrated based on the surfactant assembly and confinedspace growth. These materials include mesoporous metal oxides, polymers, and carbons with open framework structures, and single-crystal metal, metal oxide and carbon nanoarrays with replicated mesostructures. A generalized "acid-base pair" concept, which self-adjusts the acidity and homogeneity of the inorganic precursor, is proposed to prepare highly ordered mesoporous metal oxides, phosphates and borates, as well as mixed metal oxides and phosphates, with diverse structures. Mesoscopically ordered polymer frameworks with uniformly large pore sizes are derived from the self-assembly from organic templates and organic precursors. Heating these materials transforms them to homologous carbon frameworks. Microwave digested method is an efficient way to enhance the adsorption property of hard silica templates in fabricating ordered nonsiliceous single-crystal nanoarrays. The coordination of organic surfactants with metal ions is also a method to increase the interaction between hard templates and precursors. A one-step impregnation process is used to fabricate ordered silica monoliths with various metal oxide nanocrystals. Improving the interactions between the precursors themselves plays an essential role in replicating ordered mesoporous CdS, SiC and graphitized carbons. Preliminary applications in bone-forming materials, biosensors and electrodes are presented as well.

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Section: ) Optical and Electronic Applicationsmentioning

confidence: 99%

Section: ) Enhancing the Interaction Between Precursors Themselvesmentioning

confidence: 99%

Section: Surfactant Self-assembly Approachmentioning

confidence: 99%

Section: Surfactant Self-assembly Approachmentioning

confidence: 99%

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General Synthesis of Ordered Nonsiliceous Mesoporous Materials

Wan

Yang

Zhao

2008

ACS Symposium Series

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“…Nanomagnetic systems have gained great interest in recent years due to their potentialities both in fundamental science [1,2] and in many technological fields [3][4][5][6][7][8][9][10][11][12][13][14]. This interest is driven by the emergence of new properties which are reliant on their reduced dimensions.…”

Section: Introductionmentioning

confidence: 99%

An EPR Study of Small Magnetic Nanoparticles

Cini

Ceci

Falvo

et al. 2016

Zeitschrift Für Physikalische Chemie

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Magnetic nanoparticles (MNPs) of spinel type iron oxide (of approximately 4 nm) mineralized inside the internal cavity of a mini ferritin-type protein have been investigated by means of electron magnetic resonance (EMR) spectroscopy. EMR measurements have been recorded at different temperatures in perpendicular and parallel configurations. The spectra have been interpreted using an approach based on the giant spin model. We confirm the quantum behavior of the MNPs, moreover, the thermal evolution of the spin system in terms of population of excited spin states is showed.

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