نتایج جستجو برای: palladium nanoparticles pd nps

تعداد نتایج: 176490  

Journal: :Nanoscale 2013
Tao Jin Shaojun Guo Jing-lin Zuo Shouheng Sun

Monodisperse 4.5 nm Pd nanoparticles (NPs) were synthesized by solution phase reduction of palladium acetylacetonate with morpholine borane in a mixture of oleylamine and 1-octadecene. These NPs were assembled on graphene uniformly in the form of a monolayer, and showed much enhanced catalysis for electrooxidation of formic acid. The work demonstrates the great potential of graphene as a suppor...

2017
Susan Azizi Mahnaz Mahdavi Shahri Heshu Sulaiman Rahman Raha Abdul Rahim Abdullah Rasedee Rosfarizan Mohamad

Among nanoparticles used for medical applications, palladium nanoparticles (PdNPs) are among the least investigated. This study was undertaken to develop PdNPs by green synthesis using white tea (W.tea; Camellia sinensis) extract to produce the [email protected] NPs. The [email protected] NPs were characterized by UV-vis spectroscopy and X-ray diffractometry, and evaluated with transmission electron microscopy (...

Journal: :Nanoscale 2015
V Romero I Costas-Mora I Lavilla C Bendicho

In this work, a simple route for the synthesis of surfactant-free immobilized palladium nanoparticles (Pd NPs) and their use as effective nanocatalysts for metal hydride decomposition is described. A mixture of ethanol : water was used as the reducing agent. Ethanol was added in a large excess to reduce the ionic Pd and stabilize the obtained Pd NPs. Ethanol is adsorbed on the surface of Pd all...

Journal: :Nanoscale 2014
Sudong Yang Chengmin Shen Yuan Tian Xiaogang Zhang Hong-Jun Gao

Single-crystal palladium nanoparticles (NPs) with controllable morphology were synthesized on the surface of reduced graphene oxide (RGO) by a novel procedure, namely reducing palladium acetylacetonate [Pd(acac)2] with the N-methylpyrrolidone (NMP) solvent in the presence of poly(vinylpyrrolidone) (PVP). The resulting Pd nanocrystals (8 nm in diameter) were uniformly distributed on the RGO. A p...

Journal: :Dalton transactions 2015
Kunpeng Song Peng Liu Jingyu Wang Lei Pang Jian Chen Irshad Hussain Bien Tan Tao Li

Novel dual-porous carbon-supported palladium nanoparticle (Pd NP) catalysts were prepared by sequential carbonization and reduction of microporous organic polymer-encaged PdCl2. The diverse pore structure of microporous organic polymers provides a reservoir for the palladium precursors and prevents Pd NPs from sintering during the carbonization and reaction. The microporous structure has a sign...

Journal: Gas Processing 2016
Ahmad Freshtegan Ahmad Reza Khosropour Mohamad Reza Talaie, S. Foad Aghamiri

The primary objective of this paper is to enhance the water-vapor-adsorption capacity of multiwall-carbon-nanotube (MWCNT) from nitrogen gas by grafting sulfonic acid groups and doping palladium nanoparticles into the adsorbent. MWCNT has been selected to be modified because of having homogeneous adsorption energy compared to silica gel. As a result, it is capable of creating isotherm having sh...

2015
Amin M Saleem Sareh Shafiee Theodora Krasia-Christoforou Ioanna Savva Gert Göransson Vincent Desmaris Peter Enoksson

We describe a fast and cost-effective process for the growth of carbon nanofibers (CNFs) at a temperature compatible with complementary metal oxide semiconductor technology, using highly stable polymer-Pd nanohybrid colloidal solutions of palladium catalyst nanoparticles (NPs). Two polymer-Pd nanohybrids, namely poly(lauryl methacrylate)-block-poly((2-acetoacetoxy)ethyl methacrylate)/Pd (LauMA ...

Journal: :E3S web of conferences 2023

Chemical reduction with trisodium citrate as the reducing agent resulted in successful formation of palladium nanoparticles (Pd NPs), and all material's components were synthesised double-distilled water. UV-vis spectroscopy, X-ray diffraction, Transmission Electron Microscopy utilised to investigate Pd nanoparticles. According TEM investigations, average size formed was 13.5 - 45 nm. Serum ade...

2011
Sudong Yang Chengmin Shen Yanyu Liang Hao Tong Wei He Xuezhao Shi Xiaogang Zhang Hong-jun Gao

A novel electrode material based on graphene oxide (GO)-polypyrrole (PPy) composites was synthesized by in situ chemical oxidation polymerization. Palladium nanoparticles (NPs) with a diameter of 4.0 nm were loaded on the reduced graphene oxide(RGO)-PPy composites by a microwave-assisted polyol process. Microstructure analysis showed that a layer of coated PPy film with monodisperse Pd NPs is p...

Journal: :Accounts of chemical research 2014
Christophe Deraedt Didier Astruc

Catalysis by palladium derivatives is now one of the most important tools in organic synthesis. Whether researchers design palladium nanoparticles (NPs) or nanoparticles occur as palladium complexes decompose, these structures can serve as central precatalysts in common carbon-carbon bond formation. Palladium NPs are also valuable alternatives to molecular catalysts because they do not require ...

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