Form ohne Struktur: Ein verblüffender Bildungsmechanismus des solvothermal hergestellten Phasenwechselmaterials Sb<sub>2</sub>Te<sub>3</sub>

Saltzmann, Tobias; Bornhöfft, Manuel; Mayer, Joachim; Simon, Ulrich

doi:10.1002/ange.201500304

Angewandte Chemie

2015

DOI: 10.1002/ange.201500304

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Form ohne Struktur: Ein verblüffender Bildungsmechanismus des solvothermal hergestellten Phasenwechselmaterials Sb₂Te₃

Tobias Saltzmann

Manuel Bornhöfft

Joachim Mayer

et al.

Abstract: Wirs tellen eine neue solvothermale Synthese des Modellmaterials Sb 2 Te 3 für Phasenwechselschalten in Form von einzelnen einkristallinen Mikro-und Nanokristallen vor. Im Verlauf des Reaktionsprozesses zum finalen Produkt, bestehend aus hexagonalen Sb 2 Te 3 -Plättchen (HPs), haben wir vier verschiedene Intermediate identifiziert. Durch Untersuchungen mittels Nanodiffraktion (ND) im Rastertransmissionselektronenmikroskop konnten wir eine ungewçhnliche Formentwicklung der Intermediate im amorphen Zustand nachw… Show more

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Cited by 4 publications

References 33 publications

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Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Deringer

Dronskowski

2015

Angewandte Chemie

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Die Synthese und die Nutzbarmachung von Nanokristallen sind hochaktuelle Forschungsfelder, doch setzen sie ein gründliches Verständnis der beteiligten Kristallflächen voraus. In diesem Kurzaufsatz schlagen wir ebendiesen Bogen von Oberflächen zu freien und weiter zu naßchemisch synthetisierten Nanokristallen, und zwar exemplarisch für Bleiselenid (PbSe), Zinntellurid (SnTe) und ihre direkten chemischen Verwandten. Wir diskutieren experimentelle Einblicke und darüber hinaus die – zunehmend einflußreiche – quantenchemische Simulation von Oberflächen und Nanokristallen. Was kann die Theorie heute leisten, was möglicherweise morgen, was kann sie eben nicht? Die Beantwortung dieser Fragen und ihre geschickte Verknüpfung mit Experimenten könnten neue, atomistisch (und damit chemisch) geleitete Perspektiven in der Nanosynthese eröffnen.

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Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Deringer

Dronskowski

2015

Angewandte Chemie

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Highly Efficient Thermal Energy Storage Using a Hybrid Hypercrosslinked Polymer**

et al. 2021

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In this work, an organic/inorganic hybrid polymer containing siloxyl functional groups was synthesized and applied to encapsulate phase change materials (PCMs). Owing to the mild conditions of the hypercrosslinking reaction, which only requires the addition of ac atalytic amount of aqueous alkaline solution, both organic and inorganic PCMs are tolerated. It is noteworthy that the initial homogeneous state of the reaction mixture allowed the ultimate encapsulation rate of the PCMs and the uniform blending of the thirdn anoadditives with the aim of thermal conductivity enhancement. Further study reveals that the presence of this hybrid hydrophobic polymer in aphase change composite endows the latter with au nique self-cleaning property.T his novel PCM encapsulation protocol is suitable for nanoparticles including carbon-based nanomaterials,m etal oxide nanoparticles,a nd inorganic oxide nanoparticles.Athermal conductivity enhancement of 600 %w as achieved along with 93.7 %l ight-tothermal conversion efficiency with al atent heat of 180 Jg À1 without leakage.

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From Atomistic Surface Chemistry to Nanocrystals of Functional Chalcogenides

Deringer

Dronskowski

2015

Angew Chem Int Ed

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Synthesis and utilization of nanocrystals are highly active fields of current research, but they require a thorough understanding of the underlying crystal surfaces. In this Minireview, we span the arc from surfaces to free nanocrystals, and onward to their chemical synthesis, using as examples lead selenide (PbSe), tin telluride (SnTe), and their direct chemical relatives. Besides experimental insights, we highlight the increasingly influential role played by quantum‐chemical simulations of surfaces and nanocrystals. What can theory do today, or possibly tomorrow; where are its limits? Answering these questions, and skillfully linking them to experiments, could open up new atomistically (that is, chemically) guided perspectives for nanosynthesis.

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Form ohne Struktur: Ein verblüffender Bildungsmechanismus des solvothermal hergestellten Phasenwechselmaterials Sb₂Te₃

Cited by 4 publications

References 33 publications

Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Highly Efficient Thermal Energy Storage Using a Hybrid Hypercrosslinked Polymer**

From Atomistic Surface Chemistry to Nanocrystals of Functional Chalcogenides

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Product

Resources

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Form ohne Struktur: Ein verblüffender Bildungsmechanismus des solvothermal hergestellten Phasenwechselmaterials Sb2Te3

Cited by 4 publications

References 33 publications

Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Von atomistischer Oberflächenchemie zu Nanokristallen funktionaler Chalkogenide

Highly Efficient Thermal Energy Storage Using a Hybrid Hypercrosslinked Polymer**

From Atomistic Surface Chemistry to Nanocrystals of Functional Chalcogenides

Contact Info

Product

Resources

About

Form ohne Struktur: Ein verblüffender Bildungsmechanismus des solvothermal hergestellten Phasenwechselmaterials Sb₂Te₃