A facile synthesis of Pt@Ir zigzag bimetallic nanocomplexes for hydrogenation reactions

2015 ◽  
Vol 51 (44) ◽  
pp. 9216-9219 ◽  
Author(s):  
Jiaqing Wang ◽  
Danhua Ge ◽  
Xueqin Cao ◽  
Minghua Tang ◽  
Yue Pan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Facile Synthesis ◽  
Hydrogenation Reactions

A facile approach for the synthesis of Pt@Ir zigzag bimetallic nanocomplexes with high catalytic activity.

scholarly journals Immobilization of an Iridium(I)-NHC-Phosphine Catalyst for Hydrogenation Reactions under Batch and Flow Conditions

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 656
Author(s):  
Henrietta Kovács ◽  
Krisztina Orosz ◽  
Gábor Papp ◽  
Ferenc Joó ◽  
Henrietta Horváth
Keyword(s):  
Catalytic Activity ◽  
Ion Exchange ◽  
Heterogeneous Catalyst ◽  
Aqueous Phase ◽  
Levulinic Acid ◽  
Flow Reactor ◽  
High Catalytic Activity ◽  
Flow Conditions ◽  
Hydrogenation Reactions ◽  
Excellent Selectivity

Na2[Ir(cod)(emim)(mtppts)] (1) with high catalytic activity in various organic- and aqueous-phase hydrogenation reactions was immobilized on several types of commercially available ion-exchange supports. The resulting heterogeneous catalyst was investigated in batch reactions and in an H-Cube flow reactor in the hydrogenation of phenylacetylene, diphenylacetylene, 1-hexyne, and benzylideneacetone. Under proper conditions, the catalyst was highly selective in the hydrogenation of alkynes to alkenes, and demonstrated excellent selectivity in C=C over C=O hydrogenation; furthermore, it displayed remarkable stability. Activity of 1 in hydrogenation of levulinic acid to γ-valerolactone was also assessed.

Nanoporous gold film: fabrication and role as a catalytic reactor

2015 ◽  
Vol 44 (26) ◽  
pp. 11929-11934 ◽  
Author(s):  
Youyi Xia ◽  
Xiang Deng ◽  
Shuxin Yan ◽  
Chang Gao ◽  
Cong Ma ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Gold Film ◽  
Nanoporous Gold ◽  
High Catalytic Activity ◽  
Catalytic Reactor ◽  
Hydrogenation Reactions ◽  
Film Fabrication ◽  
Seed Mediated

A thin NPG film with a thickness of 90 nm can be prepared on various substrates to form a catalytic reactor conveniently by using seed-mediated growth. Because of the nanoporous characterization, the film exhibits high catalytic activity both for oxidative and hydrogenation reactions.

Colloidal Co single-atom catalyst: a facile synthesis strategy and high catalytic activity for hydrogen generation

2020 ◽  
Vol 22 (4) ◽  
pp. 1269-1274 ◽  
Author(s):  
Junkai Wang ◽  
Zhenxia Huang ◽  
Lilin Lu ◽  
Quanli Jia ◽  
Liang Huang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Catalytic Activity ◽  
Hydrogen Generation ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Mixing Process ◽  
Facile Synthesis ◽  
On Demand ◽  
Synthesis Strategy ◽  
Facile Route

A facile route for on-demand hydrogen production via simply controlling the mixing process of a KBH4 solution and an aqueous solution of ISOBAM-104 stabilized Co2+ ions.

scholarly journals Palladium nanoparticles supported on nitrogen doped porous carbon material derived from cyclodextrin, glucose and melamine based polymer: promising catalysts for hydrogenation reactions

2020 ◽  
Vol 92 (6) ◽  
pp. 827-837 ◽  
Author(s):  
Samahe Sadjadi ◽  
Masoumeh Malmir ◽  
Bastien Léger ◽  
Eric Monflier ◽  
Majid M. Heravi
Keyword(s):  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Aqueous Media ◽  
Hydrogenation Reaction ◽  
Molar Ratio ◽  
Porous Carbon Material ◽  
High Catalytic Activity ◽  
Hydrothermal Conditions ◽  
Nitrogen Doped ◽  
Hydrogenation Reactions

AbstractMelamine based polymer (MT) was prepared and then reacted with a mixture of glucose (Glu) and β-cyclodextrin (CD) under hydrothermal conditions to afford, MT/Glu-CD. Then, the adsorption of Pd salt was realized on MT/Glu-CD. The resulting compound was subsequently carbonized to furnish Pd/MT/C that exhibited high catalytic activity for the hydrogenation of nitroarenes in aqueous media. To elucidate the roles of CD, Glu, the molar ratio of Glu:CD and the carbonization in the catalytic activity, several control catalysts have been prepared and their performances for a model hydrogenation reaction were compared with that of Pd/MT/C. The results confirmed the importance of the carbonization as well as the presence of CD for achieving high catalytic activity. Moreover, it was found that the molar ratio of Glu:CD could affect the catalytic activity of the final catalyst and the optimum molar ratio of Glu:CD was 30:70. The recycling test as well as measurement of Pd leaching demonstrated high recyclability and low Pd leaching of Pd/MT/C.

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