Results 21 to 30 of about 20,716 (263)

Efficient synthesis of palladium nanoparticles using guar gum as stabilizer and their applications as catalyst in reduction reactions and degradation of azo dyes

Green Processing and Synthesis, 2019
Palladium is very expensive metal and has numerous applications especially as a versatile hydrogenation and dehydrogenation catalyst for chemical reactions. The main hurdle in its wide use is the high materials cost. In the present study a cost effective
Anjum Farhana, Gul Saima, Khan Mohammad Iqbal, Khan Murad Ali   +3 more
doaj   +1 more source

Pd@Py2PZ@MSN as a Novel and Efficient Catalyst for C–C Bond Formation Reactions

Frontiers in Chemistry, 2022
In this study, a novel catalyst is introduced based on the immobilization of palladium onto dipyrido (3,2-a:2′,3′-c) phenazine–modified mesoporous silica nanoparticles.
Mohammad Hosein Sayahi, Mansoureh Toosibashi, Mehdi Bahmaei, Hosein Lijan, Leila Ma'Mani, Mohammad Mahdavi, Saeed Bahadorikhalili   +6 more
doaj   +1 more source

Characterization and Assessment of the Photo-catalytic Efficiency of Palladium/Silver Doped TiO₂Nanoparticles

Journal of Applied Sciences and Environmental Management, 2018
The effect of modified TiO2with palladium, silver and co-dopant of palladium and silver on TiO2 with its photocatalytic efficiency were studied using X-ray diffraction (XRD) and Brunauer-Emmet –Teller (BET).
AO Aroh, CE Gimba, KI Omoniyi, H. Abba, MT Yilleng   +4 more
doaj   +1 more source

Studies on the Utilisation of Spent Palladium–Activated Carbon (Pd/AC) Catalysts

Adsorption Science & Technology, 2002
The present paper offers an assessment of using wastes such as palladium–activated carbon (Pd/AC) catalysts through their regeneration or metal recovery. In order to regenerate a catalyst it has been found necessary to clean up its surface completely and
L. Dαbek, A. Świątkowski, J. Dziaduszek   +2 more
doaj   +1 more source

Monodisperse CuPd alloy nanoparticles supported on reduced graphene oxide as efficient catalyst for directed C−H activation

Catalysis Communications, 2021
The palladium-catalyzed selective activation of CH bonds is of great importance for the construction of diverse bioactive molecules. Herein, monodisperse CuPd alloy nanoparticles supported on reduced graphene oxide have been used as high efficient and ...
Feifan Wang, Fei Huang, Yingliang Yu, Shuangliu Zhou, Zhenghua Wang, Wu Zhang   +5 more
doaj   +1 more source

Improved Electroless Copper Coverage at Low Catalyst Concentrations and Reduced Plating Temperatures enabled by Low Frequency Ultrasound

International Journal of Electrochemical Science, 2014
Electroless Copper plating is a critical process in printed circuit board (PCB) manufacture where it is employed to make the through holes and vias of a PCB conductive for subsequent electroplating.
Andrew J. Cobley, Bahaa Abbas, Azad Hussain   +2 more
doaj   +1 more source

QuadraPure-Supported Palladium Nanocatalysts for Microwave-Promoted Suzuki Cross-Coupling Reaction under Aerobic Condition

The Scientific World Journal, 2014
Cross-linked resin-captured palladium (XL-QPPd) was readily prepared by simple physical adsorption onto the high loading QuadraPure macroporous resin and a subsequent reduction process.
Kin Hong Liew, Poh Lee Loh, Joon Ching Juan, Mohd Ambar Yarmo, Rahimi M. Yusop   +4 more
doaj   +1 more source

Pd-CuFe Catalyst for Transfer Hydrogenation of Nitriles: Controllable Selectivity to Primary Amines and Secondary Amines

iScience, 2018
Summary: A multicomponent nanocatalyst system was fabricated for the transfer hydrogenation of nitrile compounds. This catalyst system contains palladium, copper, and iron, which are supported on the magnetite nanospheres, and the loading of palladium ...
Lei Liu, Yuhong Liu, Yongjian Ai, Jifan Li, Junjie Zhou, Zhibo Fan, Hongjie Bao, Ruihang Jiang, Zenan Hu, Jingting Wang, Ke Jing, Yue Wang, Qionglin Liang, Hongbin Sun   +13 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Palladium-catalyzed cross-couplings in the synthesis of agrochemicals

Advanced Agrochem, 2022
Palladium-catalyzed cross-couplings have played an increasingly important role in the synthesis of agrochemicals. In this review, the applications of palladium-catalyzed Heck reaction, Suzuki-Miyaura cross-coupling, Sonogashira coupling, Negishi cross ...
Yuxin Zhu, Wenfeng Dong, Wenjun Tang
doaj   +1 more source