نتایج جستجو برای: tellurium

تعداد نتایج: 9997  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
A K Samal T Pradeep

We report the synthesis of platinum telluride nanoparticles (Pt(3)Te(4) NPs) in the solution phase at room temperature using a template-assisted method. The dendrimeric aggregates formed are composed of several small units of Pt(3)Te(4) NPs of ∼4 nm diameter. Tellurium nanowires (Te NWs) are used as the template and the reducing agent in the growth of NPs which occurs due to the galvanic replac...

Journal: :Physical review letters 2016
Xin Zhong Hui Wang Jurong Zhang Hanyu Liu Shoutao Zhang Hai-Feng Song Guochun Yang Lijun Zhang Yanming Ma

Observation of high-temperature superconductivity in compressed sulfur hydrides has generated an irresistible wave of searches for new hydrogen-containing superconductors. We herein report the prediction of high-T_{c} superconductivity in tellurium hydrides stabilized at megabar pressures identified by first-principles calculations in combination with a swarm structure search. Although telluriu...

2018
Koji Uchiyama Masami Miyashita Yoshinobu Tanishima Shigenobu Maeda Hitoshi Sato Jun Yoshikawa Shuji Watanabe Masamichi Shibata Shuji Ohhira Gen Kobashi

Significant differences in findings were seen between the intake amounts of iodine-131 that were derived from direct measurements and the estimated intake from environmental monitoring data at the Fukushima accident. To clarify these discrepancies, we have investigated the iodine-131 and tellurium-132 body burdens of five human subjects, who after being exposed to a radioactive plume, underwent...

2013
Max Herberhold Peter Leitner

We now report on l,2,3-tritellura-[3]ferrocenophane (5) which contains the Te3 chain as part of a cyclic structure: pared by tellurium insertion into the cyclopentadienyl-lithium bonds of l,l'-dilithioferrocene. Small amounts of 5 are already formed if a THF solution of the insertion product {Fe(C5H4TeLi)2} is stirred in the presence of a limited amount of air. Better yields of 5 are obtained i...

Journal: :Physical review. B, Condensed matter 1993
Davis Allred Reyes-Mena González-Hernández González Hess

We have studied at cryogenic temperatures photoluminescence features which lie more than 0.15 eV below the band edge in Zn Cd& Te (0+x 0.09) crystals. The same features, namely a defect band which lies at about 0.13—0.20 eV below the band-gap energy and a peak at 1.1 eV, that are observed in pure CdTe samples are observed in these alloy materials. In annealed samples we observe that the 1.1eV f...

Journal: :J. Chem. Soc., Trans. 1908

2006
Jun Zhang Zhaoyong Sun Jiye Fang

ZnTe quantum dots (QDs) have been very attractive because of their potential applications in optoelectronic devices operating in the blue-green region of the spectrum. This paper describes a convenient one-step synthesis of high-quality ZnTe QDs in high-temperature organic solution with high yield. Anhydrous zinc chloride was dissolved in phenyl ether under argon protection and oleic amine was ...

2008
Dong Zhang Mats Johnsson

Single crystals of dizinc tellurium dibromide trioxide, Zn(2)(TeO(3))Br(2), were synthesized via a transport reaction in sealed evacuated silica tubes. The compound has a layered crystal structure in which the building units are [ZnO(4)Br] distorted square pyramids, [ZnO(2)Br(2)] distorted tetra-hedra, and [TeO(3)E] tetra-hedra (E being the 5s(2) lone pair of Te(4+)) joined through sharing of e...

Journal: :Molecules 2017
Claudio Santi Luana Bagnoli

In 2017, the 200th anniversary of the discovery of selenium was celebrated. In 1817, the Swedish chemists, Berzelius and Gahn, on roasting 200 kg of sulfur from a pyrite from the Falun mine, obtained about 3 g of a precipitate that they first wrongly identified as tellurium. Berzelius doubted this result and repeated the analysis some months later realizing that a new element was in his hands a...

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