Results 11 to 20 of about 1,785,034 (337)

Silver-assisted reduction of nitroarenes by an Ag-embedded curcumin/melamine-functionalized magnetic nanocatalyst

Scientific Reports, 2023
In the current study, we introduce a hybrid magnetic nanocomposite comprised of curcumin (Cur), iron oxide magnetic nanoparticles (Fe3O4 MNPs), melamine linker (Mel), and silver nanoparticles (Ag NPs).
Nima Khaleghi, Mohadeseh Forouzandeh-Malati, Fatemeh Ganjali, Zahra Rashvandi, Simindokht Zarei-Shokat, Reza Taheri-Ledari, Ali Maleki   +6 more
doaj   +1 more source

Ammonium metavanadate (NH4VO3): a highly efficient and eco-friendly catalyst for one-pot synthesis of pyridines and 1,4-dihydropyridines

Scientific Reports, 2022
In this study, we reported the ammonium metavanadate (NH4VO3) as an efficient, cost-effective, and mild catalyst for the synthesis of substituted pyridines via a one-pot pseudo four-component reaction.
Jamal Rahimi, Maryam Niksefat, Marzieh Heidari, Mehdi Naderi, Hadis Abbasi, Mohammad Tajik Ijdani, Ali Maleki   +6 more
doaj   +1 more source

Recovery of platinum group metals from spent automotive catalysts: A review

Cleaner Engineering and Technology, 2021
In the last decades, a worldwide investment in the recovery or substitution of platinum group metals (PGMs) has been financed. PGMs have been classified as critical raw materials (CRMs), thus a circular economy model should be implemented for their ...
Iakovos Yakoumis, Marianna Panou, Anastasia Maria Moschovi, Dimitris Panias   +3 more
doaj   +1 more source

A magnetic antibody-conjugated nano-system for selective delivery of Ca(OH)2 and taxotere in ovarian cancer cells

Communications Biology, 2022
A magnetic drug delivery system containing polyvinyl alcohol, gold nanoparticles, and sortilin antibody followed by the plasmonic photothermal heating strategy for the controlled drug release is proposed, with use in ovarian cancer demonstrated.
Reza Taheri-Ledari, Ehsan Zolfaghari, Simindokht Zarei-Shokat, Amir Kashtiaray, Ali Maleki   +4 more
doaj   +1 more source

Facile Synthesis of Effcient and Selective Ruthenium Olefin Metathesis Catalysts with Sulfonate and Phosphate Ligands [PDF]

, 2010
A series of novel, air-stable ruthenium NHC catalysts with sulfonate and phosphate anions have been prepared easily in one pot at high yields using commercially available precursors.
Grubbs, Robert H., Teo, Peili
core   +1 more source

Carbene Catalysts [PDF]

, 2009
The use of N-heterocyclic carbenes as catalysts for organic transformations has received increased attention in the past 10 years. A discussion of catalyst development and nucleophilic characteristics precedes a description of recent advancements and new reactions using N-heterocyclic carbenes in catalysis.
Jennifer L, Moore, Tomislav, Rovis
openaire   +2 more sources

Utilizing magnetic xanthan gum nanocatalyst for the synthesis of acridindion derivatives via functionalized macrocycle Thiacalix[4]arene

Scientific Reports, 2023
An effective method for synthesizing acridinedione derivatives using a xanthan gum (XG), Thiacalix[4]arene (TC4A), and iron oxide nanoparticles (IONP) have been employed to construct a stable composition, which is named Thiacalix[4]arene-Xanthan Gum ...
Fereshte Hassanzadeh-Afruzi, Mohammad Mehdi Salehi, Ghazaleh Ranjbar, Farhad Esmailzadeh, Peyman Hanifehnejad, Mojtaba Azizi, Faten Eshrati yeganeh, Ali Maleki   +7 more
doaj   +1 more source

Solvent effects on Grubbs’ pre-catalyst initiation rates [PDF]

, 2013
Initiation rates for Grubbs and Grubbs-Hoveyda second generation pre-catalysts have been measured accurately in a range of solvents. Solvatochromic fitting reveals different dependencies on key solvent parameters for the two pre-catalysts, consistent ...
Abboud, Adjiman, Ashworth, Ballistreri, Bielawski, Busacca, Capello, Clavier, David J. Nelson, Delpucha, Farina, Guidry, Gumbel, Henderson, Hoveyda, Ian W. Ashworth, Johnson, Jonathan M. Percy, Kamlet, Katritzky, Kuhn, Louie, Magano, Miao, Minenkov, Monfette, Nelson, Nicolau, Nuñez Zarur, Samojłowicz, Samojłowicz, Sanford, Skrzypczak, Thiel   +33 more
core   +1 more source

Hydrogen production by methanol steam reforming on NiSn/MgO-Al 2O3 catalysts: The role of MgO addition [PDF]

, 2011
The effect of the magnesia loading on the surface structure and catalytic properties of NiSn/MgO-Al2O3 catalysts for hydrogen production by methanol steam reforming has been investigated. The catalysts have been obtained by impregnation of γ-Al2O3 by the
Bobadilla Baladrón, Luis Francisco, Centeno Gallego, Miguel Ángel, Domínguez Leal, María Isabel, Ivanova, Svetlana, Odriozola Gordón, José Antonio, Penkova, Anna Dimitrova, Roger, Anne-Cécile, Romero Sarria, Francisca   +7 more
core   +1 more source

Identification of single-site gold catalysis in acetylene hydrochlorination [PDF]

, 2017
There remains considerable debate over the active form of gold under operating conditions of a recently validated gold catalyst for acetylene hydrochlorination.
Catlow, C. Richard A., Davies, Catherine J., Dawson, Simon, Freakley, Simon J., Gibson, Emma K., Hutchings, Graham J., Johnston, Peter, Jones, Wilm, Kiely, Christopher J., Kondrat, Simon A., Lu, Li, Malta, Grazia, Morgan, David J., Thetford, Adam, Wells, Peter P.   +14 more
core   +4 more sources