One-Pot Synthesis of a Novel 3D CuO Microstructure with Excellent Electrochemical Hydrogen Capacity

2014 ◽  
Vol 998-999 ◽  
pp. 71-74
Author(s):  
Ying Li ◽  
Yong Kui Yin ◽  
Sheng Zhong Rong ◽  
Xin Yu Cui ◽  
Ge Jin ◽  
...  
Keyword(s):  
Field Emission ◽  
Vital Role ◽  
Scanning Microscopy ◽  
One Pot ◽  
Initial Concentration ◽  
X Ray ◽  
Hydrogen Capacity ◽  
One Pot Synthesis

A novel flocculus-like CuO microstructure exhibiting excellent electrochemical hydrogen capacity of 210 mAh/g were fabricated using Cu (OH)2 as precursor. By altering the initial concentration of NaOH, novel butter-like and flower-like CuO microstructures without electrochemical hydrogen capacity were also obtained. Field emission scanning microscopy (FESEM) and X-ray power diffraction (XRD) were characterized the as-obtained products. The dosage of NaOH plays a vital role in controlling the morphology, which affects electrochemical hydrogen capacity of final products.

scholarly journals Funktionalisierte tripod-Liganden mit Neopentan-Grundgerüst: Umsetzung von HOCH2C(CH2PR2)3 mit Elektrophilen / Functionalized tripod-Ligands with N eopentane Fram ew ork: R eaction of HOCH2C(CH2PR2)3 with Electrophiles

1995 ◽  
Vol 50 (9) ◽  
pp. 1287-1306 ◽  
Author(s):  
Thomas Seitz ◽  
Alexander Asam ◽  
Gottfried Hüttner ◽  
Olaf Walter ◽  
Laszlo Zsolnai
Keyword(s):  
Hydroxy Group ◽  
Analytical Techniques ◽  
One Pot ◽  
X Ray ◽  
One Pot Synthesis ◽  
Tripod Ligands ◽  
Esterification Reactions ◽  
New Compounds

AbstractSeveral ways to functionalize hydroxy-tripod-ligands (HOCH2C(CH2PR2)3) by activation with electrophiles are presented. The use of carboxylic halides and anhydrides is shown to be generally successful for esterification reactions in a one-pot synthesis starting from the oxetanes O(CH2)2C(CH2PR2)2. Facial coordinaton of the related esters towards iron(II) and molybdenum(O) can be achieved depending on the nature of the phosphane donor groups. If methyliodide or trimethylsilylchloride are used as electrophiles in order to functionalize the hydroxy group in HOCH2C(CH2PR2)3, it is necessary to proctect the phosphane groups by formation of the tris-borane adduct. All new compounds have been fully characterized by the usual analytical techniques as well as by X-ray analyses on selected examples.

Facile One-Pot Synthesis and X-ray Characterization of N-(Thio)phosphoryl-2-oxo-1,2-azaphospholanes: First Example of Cyclic O,O- and O,S-Bidentate Ligands with the P-N-P Backbone

Synthesis ◽  
2009 ◽  
Vol 2010 (04) ◽  
pp. 613-618
Author(s):  
Irina Odinets ◽  
Inga Aladzheva ◽  
Olga Bykhovskaya ◽  
Yulya Nelyubina ◽  
Alexander Korlyukov ◽  
...  
Keyword(s):  
Bidentate Ligands ◽  
One Pot ◽  
X Ray ◽  
One Pot Synthesis

scholarly journals One-pot synthesis and the structure study of a new indoline spiropyran with cationic substituent

2019 ◽  
Vol 488 (5) ◽  
pp. 498-503
Author(s):  
A. D. Pugachev ◽  
A. S. Kozlenko ◽  
M. B. Lukyanova ◽  
B. S. Lukyanov ◽  
V. V. Tkachev ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Single Crystals ◽  
High Resolution Mass Spectrometry ◽  
Structure Study ◽  
One Pot ◽  
X Ray ◽  
One Pot Synthesis ◽  
High Resolution Mass ◽  
Resolution Mass

One-pot synthesis and the structure study of a new salt spiropyran of indoline series containing 2H-chromenic vinyl-3H-indolium fragment as a substituent at the position 8 are described. The structure was confirmed by the method of NMR 1H and 13C spectroscopy, IR and high-resolution mass spectrometry. The single crystals of the compound were investigated by X-ray analysis. The structure was compared with the previously known isostructural analogue [10].

Effect of nanosecond and femtosecond pulse laser on the formation of WS2 nanostructures and field emission characteristics

2019 ◽  
Vol 33 (14n15) ◽  
pp. 1940014
Author(s):  
Pankaj Koinkar ◽  
Kohei Sasaki ◽  
Akihiro Furube ◽  
Kei-Ichiro Murai ◽  
Toshihiro Moriga ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Field Emission ◽  
Pulse Laser ◽  
Direct Method ◽  
Vital Role ◽  
Emission Characteristics ◽  
Liquid Environment ◽  
X Ray ◽  
Transmission Electron ◽  
Fs Laser

The pulse laser ablation is a simple and direct method used for the generation of nanostructures in liquid environment. In this paper, formation of tungsten sulfide [Formula: see text] nanostructures has been carried out using nanosecond (ns) and femtosecond (fs) laser ablation with ablation time 120 min. In addition, the field emission studies were performed of the prepared sample. The characterization techniques such as the transmission electron microscopy (TEM), X-ray diffraction (XRD) and UV-visible spectroscopy have been used to confirm the surface morphology as well as structural details. It is observed that the laser pulse regime plays a vital role on the size reduction of [Formula: see text] nanostructure. The X-ray spectra reveal the formation of [Formula: see text] nanoparticles for ns laser ablation, while [Formula: see text] nanosheets for fs laser ablation. The TEM images indicate that the transformation of [Formula: see text] microsheet into nanosheet of the size about 15–200 nm for the sample treated with ns laser and fs laser ablation. Also, the results clearly shows the improvement in the field emission characteristics for laser ablated [Formula: see text] nanosheets. The enhanced field emission characteristics is attributed to the formation and separation of few layer [Formula: see text] nanosheets. The [Formula: see text] nanostructures may have great potential for the applications in optoelectronic devices.

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