A facile self-template and carbonization strategy to fabricate nickel nanoparticle supporting N-doped carbon microtubes

2018 ◽  
Vol 5 (4) ◽  
pp. 844-852 ◽  
Author(s):  
Jianping Wang ◽  
Min Zhang ◽  
Teng Miao ◽  
Yang Ling ◽  
Qiong Wen ◽  
...  
Keyword(s):  
Inert Atmosphere ◽  
One Pot ◽  
Nickel Ion ◽  
Thin Coatings ◽  
Nickel Nanoparticle

A facile one-pot approach is utilized to construct nickel-ion–PDA complex thin coatings on MoO3@PPy microtubes, which can be carbonized under an inert atmosphere to obtain nickel/N-doped carbon microtubes (Ni/NCMTs).

A type of raspberry-like silica composite with tunable nickel nanoparticles coverage towards nanocatalysis and protein adsorption

2016 ◽  
Vol 18 (23) ◽  
pp. 6282-6290 ◽  
Author(s):  
Lei Ding ◽  
Min Zhang ◽  
Yanwei Zhang ◽  
Jinbo Yang ◽  
Jing Zheng ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Hybrid Composite ◽  
Nickel Nanoparticles ◽  
Metallic Nickel ◽  
Silica Spheres ◽  
One Pot ◽  
Nickel Ion ◽  
Thin Coatings ◽  
Silica Composite ◽  
Thin Carbon

A facile one-pot approach is utilized to construct nickel-ion–PDA complex thin coatings on silica spheres, which can be carbonized in nitrogen to a raspberry-like hybrid composite with well-dispersed metallic nickel embedded in PDA-derived thin carbon layers on silica spheres.

Copper-Catalyzed Tandem Multi-Component Approach to 1,3-Oxazines at Room Temperature by Cross-Dehydrogenative Coupling Using Methanol as C1 Feedstock

Synlett ◽  
2018 ◽  
Vol 29 (09) ◽  
pp. 1171-1175 ◽  
Author(s):  
Paran Borpatra ◽  
Mohit Deb ◽  
Pranjal Baruah
Keyword(s):  
Carbon Source ◽  
Room Temperature ◽  
Inert Atmosphere ◽  
Environmentally Benign ◽  
Metal Catalyst ◽  
Methylene Carbon ◽  
One Pot ◽  
Dehydrogenative Coupling ◽  
Tert Butyl Hydroperoxide ◽  
Component Approach

A copper(II)-catalyzed multi-component one-pot approach for the synthesis of 1,3-oxazines at room temperature is reported here. Methanol is used as the solvent as well as the carbon source. The methylene carbon of the oxazine product comes from methanol via formaldehyde. tert-Butyl hydroperoxide is used as the oxidant. The reaction uses an environmentally benign metal catalyst and oxidant. No inert atmosphere or precaution is required for the reaction. Most importantly, the reaction avoids the use of carcinogenic formaldehyde.

Simple Apparatus for Adding Small Amounts of Powder Materials under an Inert Atmosphere

Synlett ◽  
2019 ◽  
Vol 30 (18) ◽  
pp. 2058-2061
Author(s):  
Milandip Karak ◽  
Yohei Joh ◽  
Khamid U. Khodjaniyazov ◽  
Shamansur S. Sagdullaev ◽  
Tohru Oishi ◽  
...  
Keyword(s):  
Inert Atmosphere ◽  
Powder Materials ◽  
Solid Materials ◽  
One Pot ◽  
Simple Apparatus ◽  
Direct Addition ◽  
Dry Conditions ◽  
Powder Addition ◽  
Small Apparatus ◽  
Reproducible Manner

Addition of reactants under an inert atmosphere is a fundamental but extremely important technique in synthetic chemistry. Although this is achievable in many cases by using a glove box or a Schlenk-and-syringe technique, the direct addition of powder (solid) materials without contamination by air or moisture has been difficult, especially in the later stages of a reaction. Here, we offer a simple and small apparatus to realize powder addition with easy handling. Use of this apparatus permitted one-pot glycosylation reactions that required extremely dry conditions to be performed in a highly reproducible manner.

One Pot, Environmentally Benign, Thermal Reaction to Fabricate WSe2 and MoSe2 Nanoplates

2008 ◽  
Vol 3 ◽  
pp. 15-24 ◽  
Author(s):  
Vilas Ganpat Pol ◽  
Swati Vilas Pol ◽  
Aharon Gedanken
Keyword(s):  
Sandwich Structure ◽  
Inert Atmosphere ◽  
Thermal Reaction ◽  
Single Step ◽  
Environmentally Benign ◽  
Metal Particles ◽  
One Pot ◽  
Boiling Points ◽  
Very High ◽  
Closed Reactor

The two dimensional nanoplates of WSe2 and MoSe2 are the result of solid-state thermal (750oC) reaction between micrometer-sized W or Mo with micro-size Se powder under inert atmosphere via carving phenomena in a closed reactor. This is a distinct top-down approach presented for the fabrication of inorganic nanoplates, where micron-sized metal particles having very high melting and boiling points are converted into a Se–M–Se sandwich structure employing a single-step, scalable, and environmentally- friendly chemical reaction under autogenic pressure at elevated temperature (RAPET). The mechanistic elucidation of the creation of WSe2/MoSe2 nanoplates is suggested on the basis of the crystal structure with the support of data obtained from compositional, structural, and morphological characterizations.

Optical and cytotoxicity properties of water soluble type II CdTe/CdSe nanoparticles synthesised via a green method

2015 ◽  
Vol 1748 ◽  
Author(s):  
Vuyelwa Ncapayi ◽  
Samuel O. Oluwafemi ◽  
Sandile P. Songca ◽  
Tetsuya Kodama
Keyword(s):  
Reaction Time ◽  
Inert Atmosphere ◽  
Stability Study ◽  
Water Soluble ◽  
Shell Nanoparticles ◽  
One Pot ◽  
Absorption And Emission ◽  
Aging Period ◽  
Cdse Layer ◽  
The Stability

ABSTRACTWe herein report the optical and cytotoxicity properties of highly luminescent water soluble mercaptopropanoic acid (MPA) capped CdTe/CdSe core shell nanoparticles (NPs). The synthesis of the CdTe/CdSe NPs was carried out via a simple, one pot and economical route, involving the use of greener materials under ambient environment in the absence of an inert atmosphere. The temporal evolution of the size and optical properties of the nanomaterials was investigated by varying the reaction time and stability of the as-synthesised material at pH 12. The as-synthesised nanomaterials were characterised using UV-vis absorption and photoluminescence (PL) spectroscopy. The nanoparticles obtained were of high quality with high absorption and emission features. Addition of Se precursor to produce CdSe layer on the CdTe NPs core surface resulted in significant red shirt of both the absorption and emission maxima. The stability study showed that the emission maximum peak positions and FWHM remain the same with increase in emission intensity for all the NPs during the aging period. The cytotoxicity assay showed very high cell viability for the CdTe/CdSe NPs produced at 7 h compared with those produced at 30 mins as the concentration increased from 0.1 to 60 ug/ml. The lower cytotoxicity at the higher reaction time was attributed to the higher stability of the material and hence lower release of Cd2+.

New Method for the Synthesis of a Mononucleating Cyclic Peptide Ligand, Crystal Structures of its Ni, Zn, Cu, and Co Complexes, and Their Inhibitory Bioactivity Against Urease

2007 ◽  
Vol 60 (5) ◽  
pp. 375 ◽  
Author(s):  
Kui Cheng ◽  
Zhong-Lu You ◽  
Hai-Liang Zhu
Keyword(s):  
Cyclic Peptide ◽  
Peptide Ligand ◽  
Jack Bean Urease ◽  
One Pot ◽  
Nickel Ion ◽  
Jack Bean ◽  
Metal Free ◽  
Synthetic Procedure ◽  
First Time ◽  
Solvothermal Conditions

A novel cyclic peptide complex, NiL 1 (H2L = 12,24-dihydroxy-1,6-dioxo-2,5,14,17-tetraaza[6*6]metacyclophane-13,17-diene has been synthesized for the first time under solvothermal conditions through a one-pot synthetic procedure using nickel ion as the template reagent. It was found that other metal ions were not suitable for the direct template reagent in this reaction. The nickel ion was eliminated from the complex and the metal-free cyclic peptide ligand H2L was obtained through a series of reactions. Then, ZnII, CuII, and CoII were coordinated with H2L under the same solvothermal conditions to produce three isomorphous complexes ZnL 2, CuL 3, and CoL 4. Their inhibitory bioactivities against urease were then studied. The copper(ii) complex 3 was the strongest inhibitor against jack bean urease, while H2L, 2, and 4 showed weak or no inhibitory activity against this enzyme.

One-pot monomer self-assembly route to PbS/poly(methyl methacrylate) core/shell nanocomposite thin coatings

2002 ◽  
Vol 12 (3) ◽  
pp. 611-613 ◽  
Author(s):  
Zheng-Ping Qiao ◽  
Gang Xie ◽  
Jun-Min Huang ◽  
Si-Yuan Zhao ◽  
Xiao-Ming Chen
Keyword(s):  
Methyl Methacrylate ◽  
Self Assembly ◽  
Core Shell ◽  
One Pot ◽  
Thin Coatings ◽  
Poly Methyl Methacrylate

scholarly journals One-pot gold-catalyzed synthesis of 3-silylethynyl indoles from unprotected o-alkynylanilines

2011 ◽  
Vol 7 ◽  
pp. 565-569 ◽  
Author(s):  
Jonathan P Brand ◽  
Clara Chevalley ◽  
Jérôme Waser
Keyword(s):  
Functional Groups ◽  
Inert Atmosphere ◽  
One Pot

The Au(III)-catalyzed cyclization of 2-alkynylanilines was combined in a one-pot procedure with the Au(I)-catalyzed C3-selective direct alkynylation of indoles using the benziodoxolone reagent TIPS-EBX to give a mild, easy and straightforward entry to 2-substituted-3-alkynylindoles. The reaction can be applied to unprotected anilines, was tolerant to functional groups and easy to carry out (RT, and requires neither an inert atmosphere nor special solvents).

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