Novel ionic liquid assisted synthesis of SnO2 microspheres

Dong, Wen‐Sheng; Li, Mengyuan; Liu, Chunling; Lin, Feng-Qiang; Liu, Zhao‐Tie

doi:10.1016/j.jcis.2007.08.031

Cited by 58 publications

(30 citation statements)

References 60 publications

(16 reference statements)

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“…[240,241] Although the synthesis of metal oxides in ionic liquids or mixed solutions containing ionic liquids has just begun, the number of publications in this direction is much more than that on the synthesis of silicas using ionic liquids because of the diversity of metal oxides. Typical examples include the synthesis of TiO 2 , [47,48,[242][243][244][245][246][247][248][249][250][251][252][253][254][255] ZnO, [43,[256][257][258][259][260][261][262][263][264][265][266] CuO, [267][268][269][270][271] Cu 2 O, [272] Fe 2 O 3 , [273,274] NiO, [275] ZrO 2 , [276] Co 3 O 4 , [277,278] CeO 2 , [279,280] SnO 2 , [281,282] PbO, …”

Section: Metal Oxidesmentioning

confidence: 99%

Preparation of Inorganic Materials Using Ionic Liquids

2009

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Conventional synthesis of inorganic materials relies heavily on water and organic solvents. Alternatively, the synthesis of inorganic materials using, or in the presence of, ionic liquids represents a burgeoning direction in materials chemistry. Use of ionic liquids in solvent extraction and organic catalysis has been extensively studied, but their use in inorganic synthesis has just begun. Ionic liquids are a family of non-conventional molten salts that can act as templates and precursors to inorganic materials, as well as solvents. They offer many advantages, such as negligible vapor pressures, wide liquidus ranges, good thermal stability, tunable solubility for both organic and inorganic molecules, and much synthetic flexibility. In this Review, the use of ionic liquids in the preparation of several categories of inorganic and hybrid materials (i.e., metal structures, non-metal elements, silicas, organosilicas, metal oxides, metal chalcogenides, metal salts, open-framework structures, ionic liquid-functionalized materials, and supported ionic liquids) is summarized. The status quo of the research field is assessed, and some future perspectives are furnished.

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Section: Metal Oxidesmentioning

confidence: 99%

Preparation of Inorganic Materials Using Ionic Liquids

2009

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“…Therefore, various groups have reported microwaveassisted routes to SnO 2 . [122][123][124][125][126][127][128][129][130] One of them demonstrates how the technical potential of MW-ST approaches can be explored through the construction of special microwave ovens that induce higher field strengths within the samples than the commercially available models. [124] As a result, the reaction temperatures are reached very quickly, thereby reducing the reaction times to only 60 seconds.…”

Section: Microwave-assisted Strategiesmentioning

confidence: 99%

“…To finally obtain phase-pure rutile particles, a minimum HCl concentration of 6 mol/L is required. [206] Nanoparticles of the gas-sensing oxide SnO 2 cannot only be accessed conveniently through MW-HT methods, [122][123][124][125][126][127][128][129][130] but also by the incorporation of a room-temperature ionic liquid, such as [C 16 mim][Br], into a sol-gel process and subsequent heat treatment. [207] Similar to the IL-assisted formation of rutile nanoparticles, [206] this "green chemistry" approach is based on a strong interaction between the IL and tin oxide that is reinforced through hydrogen bonding and the p-p stacking of the imidazolium rings.…”

Section: Synthesis Of Oxide Nanomaterials With Ionic Liquidsmentioning

confidence: 99%

Oxide Nanomaterials: Synthetic Developments, Mechanistic Studies, and Technological Innovations

et al. 2010

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Oxide nanomaterials are indispensable for nanotechnological innovations, because they combine an infinite variety of structural motifs and properties with manifold morphological features. Given that new oxide materials are almost reported on a daily basis, considerable synthetic and technological work remains to be done to fully exploit this ever increasing family of compounds for innovative nano-applications. This calls for reliable and scalable preparative approaches to oxide nanomaterials and their development remains a challenge for many complex nanostructured oxides. Oxide nanomaterials with special physicochemical features and unusual morphologies are still difficult to access by classic synthetic pathways. The limitless options for creating nano-oxide building blocks open up new technological perspectives with the potential to revolutionize areas ranging from data processing to biocatalysis. Oxide nanotechnology of the 21st century thus needs a strong interplay of preparative creativity, analytical skills, and new ideas for synergistic implementations.

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“…Um schlussendlich phasenreines Rutil zu erhalten, muss eine Minimalkonzentration von 6 mol L À1 HCl eingehalten werden. [206] Auch das für Gassensoren wichtige nanoskalige SnO 2 kann nicht nur auf einfachem Wege mit MW-HT-Methoden erhalten werden, [122][123][124][125][126][127][128][129][130] sondern auch durch die Kombination einer ionischen Flüssigkeit wie [C 16 mim][Br] mit einem SolGel-Prozess und anschließender thermischer Behandlung. [207] ¾hnlich wie die IL-unterstützte Bildung von Rutil-Nanopartikeln [206] beruht diese der "grünen Chemie" verwandte Methode auf einer starken Wechselwirkung zwischen IL und Zinnoxid, die durch Wasserstoffbrücken und p-p-Wechselwirkungen noch verstärkt wird.…”

Section: Synthese Oxidischer Nanomaterialien In Ionischen Flüssigkeitenunclassified

Oxidische Nanomaterialien: Von der Synthese über den Mechanismus zur technologischen Innovation

et al. 2010

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Oxidische Nanomaterialien verbinden eine einzigartige und unerschöpfliche Vielfalt struktureller Motive und Eigenschaften mit einer großen Bandbreite morphologischer Variationen – dies macht sie unverzichtbar für nanotechnologische Innovationen. Die Familie der Oxidmaterialien ist in einem stetigen Wachstum begriffen, und somit liegt eine beträchtliche präparative und technologische Arbeit vor uns, um diese Fülle von Komponenten für neuartige Anwendungen auf der Nanoskala zu erschließen. Dies erfordert die Entwicklung zuverlässiger und skalierbarer Präparationsstrategien, die aber besonders für nanostrukturierte Oxide mit komplexer Zusammensetzung eine Herausforderung sind. Mit ihrem anspruchsvollen physikochemischen Hintergrund eröffnen die bislang eingeführten Methoden den Weg zu nanoskaligen Oxiden verschiedenartiger Morphologie, die auf konventionelle Weise nur schwer erhältlich sind. Die vielfältigen modularen Optionen nanoskaliger Oxide als neue Bausteine können revolutionäre Entwicklungen vorantreiben, von der Datenverarbeitung bis hin zur Biokatalyse. Um diese Wechselwirkungen entsprechend zu nutzen, bedarf die Oxid‐Nanotechnologie des 21. Jahrhunderts einer starken Kombination aus präparativer Kreativität, analytischen Instrumentarien und neuen Anwendungsideen.

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Novel ionic liquid assisted synthesis of SnO2 microspheres

Cited by 58 publications

References 60 publications

Preparation of Inorganic Materials Using Ionic Liquids

Preparation of Inorganic Materials Using Ionic Liquids

Oxide Nanomaterials: Synthetic Developments, Mechanistic Studies, and Technological Innovations

Oxidische Nanomaterialien: Von der Synthese über den Mechanismus zur technologischen Innovation

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