نتایج جستجو برای: oleylamine

تعداد نتایج: 254  

Journal: :ACS applied nano materials 2022

Herein, we report a facile and flexible synthesis of porous highly faceted platinum nanoparticles (NPs) performed in the liquid phase. The is by reduction 2,4-pentantedionate presence oleylamine oleic acid dibenzyl ether at 200 °C. growth process was monitored time-course transmission electron microscopy (TEM), revealing peculiar progressive evolution that, comparison with previous methodologie...

Journal: :ACS Nano 2021

The extensive use of halomethanes (CH3X, X = F, Cl, Br, I) as refrigerants, propellants, and pesticides has drawn serious concern due to their adverse biological atmospheric impact. However, there are currently no portable rapid accurate monitoring systems for detection. This work introduces an approach the selective sensitive detection using photoluminescence spectral shifts in cesium lead hal...

Journal: :Materials Today Energy 2022

Solar-thermal technology based on phase change materials (PCMs) has received a lot of attention as cost-effective and practical way to overcome solar energy intermittency. However, weak photothermal conversion ability complex preparation processes have hindered the application PCMs. In this work, new approach for facile, uniform, firm assembly graphene nanoplatelet (GNP) through reaction oxide ...

Journal: :Nanoscale 2014
Hanbin Liao Jinghan Zhu Yanglong Hou

We have demonstrated a one-pot, facile and rapid strategy to synthesize novel PtBi nanoplatelets (NPLs) and PdBi nanowires (NWs) with controlled shape, size, and composition in the presence of oleylamine (OAm) and NH4Br. In contrast to the conventional face centered cubic (fcc) structure of Pt-based NPs, PtBi possesses a chemically ordered intermetallic hexagonal close packed (hcp) structure. U...

2008
Weiling Luan Hongwei Yang Ningning Fan Shan-Tung Tu

Quantum dots with emission in the spectral region from 525 to 535 nm are of special interest for their application in green LEDs and white-light generation, where CdSe/ZnS core-shell structured nanocrystals (NCs) are among promising candidates. In this study, triple-ligand system (trioctylphosphine oxide–oleic acid–oleylamine) was designed to improve the stability of CdSe NCs during the early r...

Journal: :Chemistry 2012
Guozhu Chen Stefano Desinan Renzo Rosei Federico Rosei Dongling Ma

We report the synthesis and characterization of new Ni(x)Ru(1-x) (x = 0.56-0.74) alloy nanoparticles (NPs) and their catalytic activity for hydrogen release in the ammonia borane hydrolysis process. The alloy NPs were obtained by wet-chemistry method using a rapid lithium triethylborohydride reduction of Ni(2+) and Ru(3+) precursors in oleylamine. The nature of each alloy sample was fully chara...

2009
Rui Shen Shai N. Shafrir Chunlin Miao Zhenmeng Peng Shengchun Yang Miao Shi Jianbo Wu

In this thesis, a generic method was developed for surface modification of nanoparticles (NP) with silica shell using Stöber method. Nanoparticles synthesized from nonhydrolytic solvents such as various ethers were first surface activated with a silane-based poly(ethylene glycol) (PEG). Because of the amphiphilicity of PEG moiety, these nanoparticles could be easily transferred from hydrophobic...

Journal: :Dalton transactions 2009
Ya-Ping Du Ya-Wen Zhang Ling-Dong Sun Chun-Hua Yan

This paper reports the first systematical synthesis of near-monodisperse potassium and lithium rare earth (RE) fluoride (K(Li)REF4) nanocrystals with diverse shapes (cubic KLaF4 and KCeF4 wormlike nanowires, nanocubes and nanopolyhedra; cubic LiREF4 (RE = Pr to Gd, Y) nanopolyhedra; tetragonal LiREF4 (RE = Tb to Lu, Y) rhombic nanoplates) via co-thermolysis of Li(CF3COO) or K(CF3COO) and RE(CF3...

Journal: :Nanoscale 2015
Si Yin Tee Enyi Ye Pei Hua Pan Coryl Jing Jun Lee Hui Kim Hui Shuang-Yuan Zhang Leng Duei Koh Zhili Dong Ming-Yong Han

Herein, we report a facile two-step approach to produce gold-incorporated copper (Cu/Au) nanostructures through controlled disproportionation of the Cu(+)-oleylamine complex at 220 °C to form copper nanowires and the subsequent reaction with Au(3+) at different temperatures of 140, 220 and 300 °C. In comparison with copper nanowires, these bimetallic Cu/Au nanostructures exhibit their synergist...

2009
Tamar Andelman Simon Gordonov Gabrielle Busto Prabhas V Moghe Richard E Riman

As the field of nanotechnology continues to grow, evaluating the cytotoxicity of nanoparticles is important in furthering their application within biomedicine. Here, we report the synthesis, characterization, and cytotoxicity of nanoparticles of different morphologies of yttrium oxide, a promising material for biological imaging applications. Nanoparticles of spherical, rod-like, and platelet m...

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