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(PDF) A chlorine-free protocol for processing germanium

PDF | Replacing molecular chlorine and hydrochloric acid with less energy- and risk-intensive reagents would markedly improve the environmental impact... | Find, read and …

Synthesis, Characterization, and Thermal Study of Divalent ...

Synthesis, Characterization, and Thermal Study of Divalent Germanium, Tin, and Lead Triazenides as Potential Vapor Deposition Precursors Inorganic Chemistry ( IF 5.165) Pub Date :, DOI: 10.1021/acs.inorgchem.1c00695

Jiří Čejka's research works | Charles R. Drew University ...

Jiří Čejka's 361 research works with 11,690 citations and 5,692 reads, including: Tuning the CHA framework composition by isomorphous substitution for CO2/CH4 separation

Facile Synthesis of Multifunctional Germanium ...

Facile Synthesis of Multifunctional Germanium Nanoparticles as a Carrier of Quercetin to Achieve Enhanced Biological Activity. Yan-Jie Guo, Department of Chemistry, Jinan University, Guangzhou 510632 (P.R. China), Fax: (+86) 2085223039. Search for more papers by this author.

Germanium (II) precursors for use in the synthesis of ...

Boyle, Timothy J, and Bunge, Scott D. Germanium (II) precursors for use in the synthesis of luminescent germanium nanocrystals..United States: N. p., 2004. Web.

Synthesis, properties, and catalysis of p-block complexes ...

Beyond the simple, symmetric Ar-BIAN ligands, the synthesis of asymmetric variants from two different anilines had been reported by Ragaini et al. …

Colloidal Synthesis of Germanium Nanocrystals Using Room ...

Germanium nanoparticles with an average size of 5 ± 1 nm were synthesized by the room-temperature reduction of GeCl4 in ethylene glycol using a solution of NaBH4 in triglyme. By modifying the reaction conditions, other morphologies can also be accessed, including larger spherical particles and nanocubes.

Size Controlled Synthesis of Germanium Nanocrystals ...

Germanium nanocrystals (Ge NCs) have attracted increasing attention as a promising alternative to II–VI and IV–VI semiconductor materials as they are cheap, “green,” electrochemically stable, and compatible with existing CMOS processing methods. Germanium is a particularly attractive material for optoelectronic applications as it …

Synthesis of Nine-atom Deltahedral Zintl Ions of …

Downie C, Mao J-G, Parmar H, Guloy AM. The Role of Sequestering Agents in the Formation and Structure of Germanium Anion Cluster Polymers. Inorg. Chem. 2004; 43:1992–1997. [Google Scholar] Ugrinov A, Sevov SC. Synthesis of a chain of nine-atom germanium clusters accompanied with dimerization of the sequestering. 2005; 8:1878–1882.

Coherent Solution‐phase Synthesis of a Germanium‐Graphitic ...

The annealed germanium-graphitic nanocomposite has been tested as anode material in lithium-ion batteries. Abstract The organosilicon reagent 1,4-bis-(trimethylsilyl)-1,4-diaza-2,5-cyclohexadiene 2 plays the binary role of the simultaneous reduction of GeCl 2 .dioxane 1 dissolved in oleylamine to Ge nanocrystals and the formation of graphitic ...

Synthesis and biological evaluation of Germanium(IV ...

Germanium (Ge) is considered to play a key role in the pharmacological effects of some medicinal plants. Here, two new Ge(IV)-polyphenol complexes were synthesized and measured for their potential biological activities. The results indicated that these Ge(IV)-polyphenol complexes possessed great ant …

Zintl Phases as Reactive Precursors for Synthesis of Novel ...

Recent experimental and theoretical work has demonstrated significant potential to tune the properties of silicon and germanium by adjusting the mesostructure, nanostructure, and/or crystalline structure of these group 14 elements. Despite the promise to achieve enhanced functionality with these already technologically important elements, a significant challenge lies in the identification of ...

Glass - Wikipedia

Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics.Glass is most often formed by rapid cooling of the molten form; some glasses such as volcanic glass are naturally occurring.The most familiar, and historically the oldest, types of manufactured glass are "silicate ...

Growth kinetics controlled rational synthesis of germanium ...

Wang D, Dai H. Low-temperature synthesis of single-crystalline germanium nanowires by chemical vapor deposition. Angew Chem Int Edit, 2002, 41: 4783–4786. Article Google Scholar 22. Dailey JW, Taraci J, Clement T, et al. Vapor-liquid-solid growth of germanium nanostructures on silicon. J Appl Phys, 2004, 96: 7556–7567

Synthesis of amorphous germanium dioxide particles ...

The unique optical properties of germanium dioxide or germania (GeO2), and in particular when compared with other glasses such as silicates, have attracted the attention of scientists and make them highly suitable for optoelectronic applications. Germanium is known to resemble silicon in some of its chemical properties.

Zintl Phases as Reactive Precursors for Synthesis of Novel ...

The generality of mild chemical oxidation of Zintl precursors for preparing silicon and germanium frameworks has now been demonstrated in the synthesis of a wide variety of clathrate phases [60,63,65,66,67,68,69], indicating these synthetic routes deserve continued investigation for the preparation of novel crystalline silicon and germanium ...

Mechanochemical synthesis, characterization and ...

Mechanochemical synthesis of curcumin derivative (DCUR) The synthesis was carried out milling 1 mmol of CUR with 1 mmol of 4-CBA, using 40 μL of ethanol. Then, these compounds were milled on a Retsch Mixer Mill MM 400 (Retsch, Germany), in 10 mL stainless steel jars, using one stainless steel ball (7 mm of diameter).

Wholesaler of Advanced Nanomaterials & Nanowire Product by ...

We also offer custom synthesis and special packaging services. The aim is full automation of all experiments and production, in order to secure quality and reproducibility. Our goal is to provide high-quality nanomaterial products, service or technical proposals. We have established close relationships with many well-known research universities ...

Silicon-Germanium Alloy | AMERICAN ELEMENTS

See more Germanium products. Germanium (atomic symbol: Ge, atomic number: 32) is a Block P, Group 14, Period 4 element with an atomic weight of 72.63. The number of electrons in each of germanium's shells is 2, 8, 18, 4 and its electron configuration is [Ar] 3d 10 4s 2 4p 2. The germanium atom has a radius of 122.5 pm and a Van der Waals radius ...

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium ...

Downie C, Mao J-G, Parmar H, Guloy AM. The Role of Sequestering Agents in the Formation and Structure of Germanium Anion Cluster Polymers. Inorg. Chem. 2004; 43:1992–1997. [Google Scholar] Ugrinov A, Sevov SC. Synthesis of a chain of nine-atom germanium clusters accompanied with dimerization of the sequestering. 2005; 8:1878–1882.

Oxidation Resistant Germanium Nanowires: Bulk Synthesis ...

Oxidation Resistant Germanium Nanowires: Bulk Synthesis, Long Chain Alkanethiol Functionalization, and Langmuir-Blodgett Assembly Dunwei Wang,† Ying-Lan Chang,‡ Zhuang Liu,† and e Dai*,† Contribution from the Department of Chemistry, Stanford UniVersity, Stanford, California

Germanium | Spectrum

Germanium Selenide, also known as germanium (II) selenide, is a chemical compound which has orthorhombic crystal symmetry. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research pu. Pricing & More Info.

A chlorine-free protocol for processing germanium ...

(D) Synthesis of germanes from either germanium (Ge) or germanium dioxide (GeO 2). In their capacity as versatile intermediates for inorganic synthesis, metal chlorides provide invaluable flexibility, for which air- and moisture-tolerant replacements that do not use Cl …

Oxidation Resistant Germanium Nanowires: Bulk Synthesis ...

Surface charge transfer doping of germanium nanowires by MoO3 deposition. RSC Advances 2012, 2, 3361. DOI: 10.1039/c2ra01269c. Hong-Jie Yang, Hsing-Yu Tuan. High-yield, high-throughput synthesis of germanium nanowires by metal–organic chemical vapor deposition and their functionalization and applications. Journal of Materials Chemistry 2012 ...

Synthesis of germanium nanocrystals in porous alumina by ...

There is a large body of research devoted to the synthesis and analysis of Ge nanocrystalls (nc-Ge) in various dielectric matrices. Such systems are considered as promising candidates for advanced photovoltaics, integrated optoelectronic and photonic devices [].To address a compatibility with traditional silicon technology, germanium nanostructures are typically prepared in …

(PDF) Synthesis and Characterization of Germanium Oxide ...

Germanium oxide (GeO2) nanowires have been prepared by heating a mixture of Ge powder and carbon in an Ar + O2 mixture at 900 degrees C. The nanowires have been characterized by X-ray diffraction ...

US7435863B2 - High silica chabazite, its synthesis and its ...

A porous crystalline material is described having the chabazite framework type and having a composition involving the molar relationship: X 2 O 3 :( n )YO 2, wherein X is a trivalent element, such as aluminum, boron, iron, indium, and/or gallium; Y is a tetravalent element such as silicon, tin, titanium and/or germanium; and n is greater than 100 and typically greater than 200, such as about ...

Germanium tetrachloride - Wikipedia

Germanium tetrachloride is a colourless, fuming liquid with a peculiar, acidic odour. It is used as an intermediate in the production of purified germanium metal. In recent years, GeCl 4 usage has increased substantially due to its use as a reagent for fiber optic production.

Green synthesis of germanium nano ink and inkjet …

Synthesis of germanium colloids in low boiling point solvents has also been achieved in this study, by functionalizing germanium nanoparticles with acrylic acid. This step provides oxide-stable propionic acid moiety terminated germanium colloid. Inkjet printing of germanium nanoparticles on silicon has been explored in further.

US20070043251A1 - High silica chabazite, its synthesis and ...

A porous crystalline material is described having the chabazite framework type and having a composition involving the molar relationship: X 2 O 3 :( n )YO 2, wherein X is a trivalent element, such as aluminum, boron, iron, indium, and/or gallium; Y is a tetravalent element such as silicon, tin, titanium and/or germanium; and n is greater than 100 and typically greater than 200, such as about ...

Synthesis of Germanium-Gallium-Tellurium (Ge-Ga-Te ...

Synthesis of Germanium-Gallium-Tellurium (Ge-Ga-Te) ceramics by ball-milling and sintering Mathieu Hubert, Elena Petracovschi, Xiang-Hua Zhang and Laurent Calvez* ... (WC) grinding jar containing 6 WC milling balls. The amount of powder prepared was 20 grams, giving a ball-to-powder weight ratio of 19:1. The jar was introduced into a planetary

Synthesis of zirconium and hafnium germanates from ...

One can note that milling of individual germanium dioxide in the ball mill results in the crystallite size of ~100 nm. It is possible that not only hard milling media (ZrO 2 balls and jars) but the second component, namely, hard ZrO 2 or HfO 2 powder contributes to the best dispersion of GeO 2. Download : Download full-size image; Fig. 1.

Synthesis, characterisation and reactivity of germanium(II ...

Synthesis, characterisation and reactivity of germanium(II) amidinate and guanidinate complexes Dalton Trans. 2008 Jun 7;(21):2871-8. doi: 10.1039/b801168k. Epub 2008 Apr 17. Authors Cameron Jones 1, Richard P Rose, Andreas Stasch. Affiliation 1 School of Chemistry ...