Self-reducing asymmetric polymer membrane for in situ formation and containment of noble metal nanocatalysts

2015 ◽  
Vol 17 (8) ◽  
pp. 4157-4161 ◽  
Author(s):  
Sankararao Chappa ◽  
Rakesh N. Shinde ◽  
Ashok K. Pandey
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Redox Reactions ◽  
Polymer Membrane ◽  
Good Catalytic Activity ◽  
In Situ Formation ◽  
Inorganic And Organic

Highly stable metal nanocatalysts formed in self-reducing asymmetric polymer membrane exhibit good catalytic activity in inorganic and organic redox reactions.

scholarly journals Ultra-Small Pd(0) Nanoparticles into a Designed Semisynthetic Lipase: An Efficient and Recyclable Heterogeneous Biohybrid Catalyst for the Heck Reaction under Mild Conditions

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2358 ◽  
Author(s):  
David Lopez-Tejedor ◽  
Blanca de las Rivas ◽  
Jose M. Palomo
Keyword(s):  
Catalytic Activity ◽  
Protein Structure ◽  
Heck Reaction ◽  
Catalytic Performance ◽  
Reducing Agent ◽  
Chemically Modified ◽  
Mild Conditions ◽  
In Situ Formation ◽  
Geobacillus Thermocatenulatus

A novel heterogeneous enzyme-palladium (Pd) (0) nanoparticles (PdNPs) bionanohybrid has been synthesized by an efficient, green, and straightforward methodology. A designed Geobacillus thermocatenulatus lipase (GTL) variant genetically and then chemically modified by the introduction of a tailor-made cysteine-containing complementary peptide- was used as the stabilizing and reducing agent for the in situ formation of ultra-small PdNPs nanoparticles embedded on the protein structure. This bionanohybrid was an excellent catalyst in the synthesis of trans-ethyl cinnamate by Heck reaction at 65 °C. It showed the best catalytic performance in dimethylformamide (DMF) containing 10–25% of water as a solvent but was also able to catalyze the reaction in pure DMF or with a higher amount of water as co-solvent. The recyclability and stability were excellent, maintaining more than 90% of catalytic activity after five cycles of use.

Employing cobalt sulfide/noble metal composites bi-functional ability for degradation and monitoring by SERS in real time

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78852-78857 ◽  
Author(s):  
Shunkai Lu ◽  
Shuzhen Ma ◽  
Hui Wang ◽  
Mingwang Shao
Keyword(s):  
Catalytic Activity ◽  
Real Time ◽  
Noble Metal ◽  
Functional Ability ◽  
Cobalt Sulfide ◽  
High Reproducibility ◽  
Metal Composites ◽  
Hydrothermal Approach

CoS/Au and CoS2/Au composites, via a facile hydrothermal approach combined with in situ reduction, exhibited excellent peroxidase-like catalytic activity and promising SERS performance with satisfactory sensitivity and high reproducibility.

In Situ Formation of a 3D Amorphous Cobalt- Borate Nanoarray: An Efficient Non-Noble Metal Catalytic Electrode for Non-Enzyme Glucose Detection

2018 ◽  
Vol 3 (38) ◽  
pp. 10580-10584 ◽  
Author(s):  
Wenqing Deng ◽  
Rui Dai ◽  
Chao You ◽  
Pingyue Hu ◽  
Xuping Sun ◽  
...  
Keyword(s):  
Noble Metal ◽  
Glucose Detection ◽  
In Situ Formation

scholarly journals In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis

2014 ◽  
Vol 26 (19) ◽  
pp. 5812-5818 ◽  
Author(s):  
Menny Shalom ◽  
Miguel Guttentag ◽  
Christian Fettkenhauer ◽  
Sahika Inal ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Noble Metal ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Metal Free ◽  
In Situ Formation

PtCo Nanoparticles Supported on Carbon for Hydrolysis of Ammonia Borane

2016 ◽  
Vol 852 ◽  
pp. 252-256
Author(s):  
Wei Dong Qi ◽  
Li Xian Sun ◽  
Fen Xu ◽  
Yong Jin Zou ◽  
Hai Liang Chu
Keyword(s):  
Catalytic Activity ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
Specific Area ◽  
Ammonia Borane ◽  
In Situ Reduction ◽  
Immersion Method ◽  
Good Catalytic Activity ◽  
Hydrolysis Of

Ammonia borane received extensive attention due to its hydrogen content as high as 19.6%. In present article we prepared the Pt-Co/C catalyst via ultrasonic immersion method and in situ reduction method. The catalyst was characterized by measuring the specific area. The influence of the catalyst on the properties of the hydrolysis of ammonia borane was tested, and the catalytic activity of the catalyst in cycle use was verified. Results shows that the catalytic activity of Pt0.5Co0.5/C is the highest, and the maximum hydrogen generation rate is 7229.613 mL/ (g ·min). It was verified that it remained good catalytic activity after cycle use for more than 10 times.

In situ formation of well-dispersed palladium nanoparticles immobilized in imidazolium-based organic ionic polymers

2014 ◽  
Vol 50 (74) ◽  
pp. 10871-10874 ◽  
Author(s):  
Huaixia Zhao ◽  
Yangxin Wang ◽  
Ruihu Wang
Keyword(s):  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Ionic Polymers ◽  
New Strategy ◽  
In Situ Formation

A new strategy for the synthesis of well-dispersed palladium nanoparticles (NPs) immobilized in imidazolium-based porous organic ionic polymers was presented in this study. The as-synthesized polymers showed excellent catalytic activity and reusability in the hydrogenation of nitroarenes without extra addition of palladium species.

In situ formation of a 3D core/shell structured Ni3N@Ni–Bi nanosheet array: an efficient non-noble-metal bifunctional electrocatalyst toward full water splitting under near-neutral conditions

2017 ◽  
Vol 5 (17) ◽  
pp. 7806-7810 ◽  
Author(s):  
Lisi Xie ◽  
Fengli Qu ◽  
Zhiang Liu ◽  
Xiang Ren ◽  
Shuai Hao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
Bifunctional Catalyst ◽  
Core Shell ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Nanosheet Array ◽  
In Situ Formation ◽  
Neutral Conditions

An in situ electrochemically developed core/shell structured Ni3N@Ni–Bi nanosheet array behaves as an efficient bifunctional catalyst for overall water splitting.

Carbonaceous microspheres prepared by hydrothermal carbonization of glucose for direct use in catalytic dehydration of fructose

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17526-17531 ◽  
Author(s):  
Xinhua Qi ◽  
Nian Liu ◽  
Youfen Lian
Keyword(s):  
Catalytic Activity ◽  
Carbonaceous Material ◽  
Hydrothermal Carbonization ◽  
Good Catalytic Activity ◽  
Post Modification ◽  
Fructose Dehydration ◽  
Direct Use

Carbonaceous material prepared from the hydrothermal carbonization of glucose was used directly without any in situ functionalization or post-modification, and exhibited good catalytic activity for fructose dehydration to 5-hydroxymethylfurfural.

Sign in / Sign up

Export Citation Format

Share Document