نتایج جستجو برای: palladium nanoparticles

تعداد نتایج: 118220  

Journal: :Chemical communications 2010
Zhenquan Tan Hiroya Abe Makio Naito Satoshi Ohara

We report a facile route to selectively deposit and arrange palladium (Pd) nanoparticles on single-walled carbon nanotubes (SWCNTs) having sub 10 nm diameter by using supramolecular self-assembly of sodium dodecyl sulfate (SDS) as a soft template.

Journal: :Materials advances 2022

Dielectric and field-dependent polarization response of palladium iodide nanoparticles under both in situ ex condition.

Journal: :Molecules 2016
Bastien Cacciuttolo Oana Pascu Cyril Aymonier Mathieu Pucheault

Palladium nanoparticles, simply and briefly generated in commercial and cheap onium salts using supercritical carbon dioxide, have been found to be an effective catalytic system for additive free N-alkylation reaction using alcohols via cascade oxidation/condensation/reduction steps.

Journal: :Chemical communications 2018
Yong Zhang Yu Xiong Jin Ge Rui Lin Chen Chen Qing Peng Dingsheng Wang Yadong Li

Porous organic cage stabilised palladium nanoparticles were successfully prepared using methanol as a mild reductant. The as-prepared porous composite materials show high catalytic activity for the carbonylation reaction of aryl halides under mild conditions.

2009
Benito Alcaide Sandra Niembro Alexandr Shafir Adelina Vallribera

Palladium nanoparticles were supported on a fluorous organic-inorganic hybrid material prepared by the sol-gel process without TEOS. Recycling studies on the Heck coupling reaction have shown that the catalyst can be readily recovered and reused.

2017
Miles A Miller Bjorn Askevold Hannes Mikula Rainer H Kohler David Pirovich Ralph Weissleder

Palladium catalysts have been widely adopted for organic synthesis and diverse industrial applications given their efficacy and safety, yet their biological in vivo use has been limited to date. Here we show that nanoencapsulated palladium is an effective means to target and treat disease through in vivo catalysis. Palladium nanoparticles (Pd-NPs) were created by screening different Pd compound...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

2009
Klaas Mennecke Andreas Kirschning

The preparation of monolithic polyionic supports which serve as efficient heterogeneous supports for palladium(0) nanoparticles is described. These functionalized polymers were incorporated inside a flow reactor and employed in Suzuki-Miyaura and Heck cross couplings under continuous flow conditions.

Journal: :Chemical communications 2011
Hong Zhao Jun Yang Lei Wang Chungui Tian Baojiang Jiang Honggang Fu

Small and highly dispersed palladium nanoparticles supported on graphene nanosheets were fabricated via a strategy of etching a copper template with Pd(2+). The obtained hybrid exhibited significant catalytic activity for formic acid oxidation.

Journal: :Physical chemistry chemical physics : PCCP 2011
Wenwen Zhu Hanming Yang Yinyin Yu Li Hua Huan Li Bo Feng Zhenshan Hou

The highly water-soluble palladium nanoparticles (NPs) were synthesized by using the amphiphilic poly(ethylene glycol)-functionalized dicationic imidazolium-based ionic liquid (C(12)Im-PEG IL) as a stabilizing agent. The aqueous dispersed palladium NPs in the range of 1.9 ± 0.3 nm were observed by transmission electron microscopy (TEM). The physicochemical properties of C(12)Im-PEG IL in aqueou...

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