Porous organic cage stabilised palladium nanoparticles: efficient heterogeneous catalysts for carbonylation reaction of aryl halides

2018 ◽  
Vol 54 (22) ◽  
pp. 2796-2799 ◽  
Author(s):  
Yong Zhang ◽  
Yu Xiong ◽  
Jin Ge ◽  
Rui Lin ◽  
Chen Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Aryl Halides ◽  
High Catalytic Activity ◽  
Mild Conditions ◽  
Carbonylation Reaction

Porous organic cage stabilised palladium nanoparticles were prepared using methanol as a mild reductant and displayed high catalytic activity for the carbonylation reaction of aryl halides under mild conditions.

Robust high-connected rare-earth MOFs as efficient heterogeneous catalysts for CO2conversion

2017 ◽  
Vol 53 (22) ◽  
pp. 3224-3227 ◽  
Author(s):  
Na Wei ◽  
Rong-Xia Zuo ◽  
Yu-Yang Zhang ◽  
Zheng-Bo Han ◽  
Xue-Jun Gu
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Heterogeneous Catalysts ◽  
High Catalytic Activity ◽  
Thermally Stable ◽  
Mild Conditions

Two series of chemically and thermally stable rare-earth MOFs with a 12-connected hcp topology exhibit high catalytic activity towards the cycloaddition of CO2and epoxides under mild conditions.

A copper nitride catalyst for the efficient hydroxylation of aryl halides under ligand-free conditions

2021 ◽  
Author(s):  
Hang Xu ◽  
Sho Yamaguchi ◽  
Takato Mitsudome ◽  
Tomoo Mizugaki
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Aryl Halides ◽  
High Catalytic Activity ◽  
Copper Nitride ◽  
Ligand Free

Copper nitride (Cu3N) was used as a heterogeneous catalyst for the hydroxylation of aryl halides under ligand-free conditions. The cubic Cu3N nanoparticles showed high catalytic activity, comparable to those of...

Towards highly active heterogeneous catalysts via a sequential noncovalent bonding strategy

2021 ◽  
Author(s):  
Ruixue Wang ◽  
Ying Yue ◽  
Huiying Wei ◽  
Jinxin Guo ◽  
Yanzhao Yang
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysts ◽  
High Catalytic Activity ◽  
Synthetic Route ◽  
Surface Ligands ◽  
Highly Active ◽  
Noncovalent Bonding ◽  
Excellent Stability

Here, a novel synthetic route of ceria-based nanocatalysts with high catalytic activity and excellent stability was constructed by utilizing function groups from surface ligands. The surface of ceria nanorods were...

Single-atom transition metals supported on black phosphorene for electrochemical nitrogen reduction

Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 4903-4908 ◽  
Author(s):  
Kang Liu ◽  
Junwei Fu ◽  
Li Zhu ◽  
Xiaodong Zhang ◽  
Hongmei Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
Reduction Reaction ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Nitrogen Reduction ◽  
Mild Conditions ◽  
Black Phosphorene

Electrochemical nitrogen reduction reaction (NRR) is a promising route to produce ammonia under mild conditions. Single-atom W supported on BP was screened as a promising electrocatalyst with high catalytic activity, stability, and selectively for NRR.

Facile fabrication of a heterogeneous Co-modified pyridinecarboxaldehyde-polyethylenimine catalyst for efficient CO2 conversion under mild conditions

2020 ◽  
Vol 7 (5) ◽  
pp. 1140-1147
Author(s):  
Chao Liu ◽  
Li Yang ◽  
Jiaxu Zhang ◽  
Jianmin Sun
Keyword(s):  
Catalytic Activity ◽  
Ambient Temperature ◽  
High Catalytic Activity ◽  
Co2 Conversion ◽  
Mild Conditions ◽  
Active Metal ◽  
Facile Fabrication ◽  
Amine Groups

A heterogeneous Co-modified pyridinecarboxaldehyde-polyethylenimine catalyst with active metal sites and amine groups exhibited high catalytic activity for CO2 conversion under mild conditions, even at ambient temperature.

Tin sulfide and selenide clusters soluble in organic solvents with the core structures of Sn4S6 and Sn4Se6

2015 ◽  
Vol 44 (46) ◽  
pp. 19800-19804 ◽  
Author(s):  
Mingdong Zhong ◽  
Zhi Yang ◽  
Yafei Yi ◽  
Dongxiang Zhang ◽  
Kening Sun ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Organic Solvents ◽  
High Catalytic Activity ◽  
Tin Sulfide ◽  
Chalcogenide Clusters ◽  
Mild Conditions ◽  
The Core

Reactions of LSnCl (1) (L = N(2,6-iPr2C6H3)(SiMe3)) with sulfur and selenium, respectively under mild conditions yielded two tin chalcogenide clusters. The two products show high catalytic activity in ROP catalysis.

scholarly journals Biodiesel Production over Niobium-Containing Catalysts: A Review

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5506
Author(s):  
Daniel Carreira Batalha ◽  
Márcio José da Silva
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Raw Materials ◽  
Catalytic Performance ◽  
High Specific Surface Area ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Main Reaction ◽  
High Catalytic Activity

Nowadays, the synthesis of biofuels from renewable raw materials is very popular. Among the various challenges involved in improving these processes, environmentally benign catalysts compatible with an inexpensive feedstock have become more important. Herein, we report the recent advances achieved in the development of Niobium-containing heterogeneous catalysts as well as their use in routes to produce biodiesel. The efficiency of different Niobium catalysts in esterification and transesterification reactions of lipids and oleaginous raw materials was evaluated, considering the effect of main reaction parameters such as temperature, time, catalyst load, and oil:alcohol molar ratio on the biodiesel yield. The catalytic performance of Niobium compounds was discussed considering the characterization data obtained by different techniques, including NH3-TPD, BET, and Pyr-FT-IR analysis. The high catalytic activity is attributed to its inherent properties, such as the active sites distribution over a high specific surface area, strength of acidity, nature, amount of acidic sites, and inherent mesoporosity. On top of this, recycling experiments have proven that most Niobium catalysts are stable and can be repeatedly used with consistent catalytic activity.

scholarly journals Low temperature oxidation of o-xylene with hydrogen peroxide in the presence of vanadium xerogels

2017 ◽  
pp. 26-31
Author(s):  
Nurlykyz Yesmurzaeva ◽  
Roza Tursunova ◽  
Bagadat Selenova ◽  
Daulet Kaldybekov ◽  
Sarkyt Kudaibergenov
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Titanium Oxide ◽  
Oxidation Process ◽  
High Catalytic Activity ◽  
Vanadium Catalyst ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Mild Conditions ◽  
Physicochemical Methods

The present work is dedicated to investigation of vanadium xerogels deposited on titanium oxide for the oxidation process of o-xylene by hydrogen peroxide under the mild conditions. The structure of deposited vanadium catalyst and sizes of vanadium xerogels nanoparticles were investigated by physicochemical methods. The nano-sized particles (5-8 nm) of xerogel vanadium deposited on titanium oxide exhibit high catalytic activity in the decomposition of hydrogen peroxide and in the oxidation of o-xylene by hydrogen peroxide under mild conditions.

Pd nanoparticles stabilized with phosphine-functionalized porous ionic polymer for efficient catalytic hydrogenation of nitroarenes in water

2020 ◽  
Vol 44 (9) ◽  
pp. 3681-3689 ◽  
Author(s):  
Yizhu Lei ◽  
Zaifei Chen ◽  
Guosong Lan ◽  
Renshu Wang ◽  
Xiao-Yu Zhou
Keyword(s):  
Catalytic Activity ◽  
Catalytic Hydrogenation ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Ionic Polymer ◽  
Electron Donation ◽  
Nano Size ◽  
Excellent Catalytic Performance

Small palladium nanoparticles stabilized with phosphine-functionalized PIP displayed high catalytic activity for nitroarenes hydrogenation. Nano-size Pd particles, electron-donation effect of phosphine ligand, and surface wettability account for its excellent catalytic performance.

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