Role of microporous Janus silica nanosheets in the assembly of ultra-small Ag nanoparticles with high catalytic activity

2021 ◽  
Vol 50 (1) ◽  
pp. 208-216
Author(s):  
Mengnan Yang ◽  
Zhaoli Yan ◽  
Tiantian Li ◽  
Bing Liu ◽  
Qiangshan Jing ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ag Nanoparticles ◽  
High Catalytic Activity ◽  
Charged Surface ◽  
Highly Efficient ◽  
Surface Hydroxyls

Negatively charged surface hydroxyls and micropores of Janus silica nanosheets play a particular role in the highly efficient and dispersed assembly of ultra-small Ag nanoparticles with high catalytic activity.

scholarly journals Target-triggered cascade assembly of a catalytic network as an artificial enzyme for highly efficient sensing

2017 ◽  
Vol 8 (7) ◽  
pp. 4833-4839 ◽  
Author(s):  
Lei Zhang ◽  
Fengjiao Ma ◽  
Jianping Lei ◽  
Jintong Liu ◽  
Huangxian Ju
Keyword(s):  
Catalytic Activity ◽  
Horseradish Peroxidase ◽  
Signal Amplification ◽  
High Catalytic Activity ◽  
Artificial Enzyme ◽  
Highly Efficient ◽  
Catalytic Network

A hemin-based enzymatic network is constructed with high catalytic activity that is comparable to natural horseradish peroxidaseviatriple signal amplification.

Noble-metal-free NiFe nanoparticles immobilized on nano CeZrO2 solid solutions for highly efficient hydrogen production from hydrous hydrazine

2019 ◽  
Vol 3 (11) ◽  
pp. 3071-3077 ◽  
Author(s):  
Hongtao Zou ◽  
Qilu Yao ◽  
Meiling Huang ◽  
Meihua Zhu ◽  
Fei Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Noble Metal ◽  
Solid Solutions ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
High Catalytic Activity ◽  
Metal Free ◽  
Highly Efficient ◽  
Hydrazine Solution

Noble-metal-free NiFe nanoparticles were successfully immobilized on nano CeZrO2 solid solutions by a simple impregnation–reduction method, exhibiting a high catalytic activity and 100% H2 selectivity for hydrogen generation from hydrazine solution.

Lanthanide clusters as highly efficient catalysts regarding carbon dioxide activation

2020 ◽  
Vol 44 (13) ◽  
pp. 5019-5022 ◽  
Author(s):  
Wei Hou ◽  
Gang Wang ◽  
Xiaojing Wu ◽  
Shuoyi Sun ◽  
Chunyang Zhao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Cyclic Carbonates ◽  
Highly Efficient ◽  
Carbon Dioxide Activation

Lanthanide clusters display a wide substrate scope and high catalytic activity for the insertion of CO2 into epoxides to form cyclic carbonates.

LDH-derived catalysts for complete oxidation of volatile organic compounds

Clay Minerals ◽  
1999 ◽  
Vol 34 (1) ◽  
pp. 67-77 ◽  
Author(s):  
K. Bahranowski ◽  
E. Bielańska ◽  
R. Janik ◽  
T. Machej ◽  
E. M. Serwicka
Keyword(s):  
Catalytic Activity ◽  
Mixed Oxide ◽  
Copper Chromite ◽  
Oxide System ◽  
High Catalytic Activity ◽  
Commercial Catalyst ◽  
Volatile Organic ◽  
Double Hydroxides ◽  
Very High

AbstractThe Cu,Cr-, Zn,Cr- and Cu,Al-layered double hydroxides have been synthesized by the coprecipitation method and characterized by elemental analysis, PXRD, SEM/EDS and BET. The mixed oxide materials obtained upon calcination at 873 K show very high catalytic activity for the combustion of toluene and ethanol. The best sample is derived from the Cu,Cr-LDH precursor with a Cu:Cr ratio of 2, composed of copper oxide and copper chromite. This catalyst gave 50% conversion of toluene and ethanol at temperatures of 45 and 15 K lower, respectively, than the reference commercial catalyst. Catalytic tests with a mechanical mixture of CuO and CuCr2O4 demonstrate that the use of an LDH precursor is essential for optimum results. The importance of the simultaneous presence of both Cu and Cr, the influence of the Cu:Cr ratio on the catalytic activity and the role of the interface boundaries in the CuO-CuCr2O4 mixed oxide system are discussed.

Chitosan Based Nanocomposite Materials as Photocatalyst – A Review

2014 ◽  
Vol 781 ◽  
pp. 79-94 ◽  
Author(s):  
A. Nithya ◽  
Kandasamy Jothivenkatachalam ◽  
S. Prabhu ◽  
K. Jeganathan
Keyword(s):  
Catalytic Activity ◽  
Environmental Remediation ◽  
Low Cost ◽  
Nanocomposite Materials ◽  
Heterogeneous Photocatalysis ◽  
Organic Polymer ◽  
High Catalytic Activity ◽  
Environmental Application ◽  
Industrial Activities

Heterogeneous photocatalysis is a significant technology for environmental application. Moreover, immobilising an appropriate catalyst on the surface of a natural organic polymer presents a number of additional advantages including low-cost, high catalytic activity and extensive potential reuse for the application of pharmaceutical, biomedical and industrial activities. This review mainly focuses on the role of chitosan based material as photocatalyst on the environmental remediation.

High catalytic activity of mesoporous Co–N/C catalysts for aerobic oxidative synthesis of nitriles

2016 ◽  
Vol 6 (14) ◽  
pp. 5746-5753 ◽  
Author(s):  
Sensen Shang ◽  
Lianyue Wang ◽  
Wen Dai ◽  
Bo Chen ◽  
Ying Lv ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Efficient Synthesis ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Carbon Catalysts ◽  
Nitrogen Doped Carbon

We report the synthesis and assessment of novel mesoporous cobalt-coordinated nitrogen-doped carbon catalysts (meso-Co–N/C) for highly efficient synthesis of nitriles.

High catalytic activity of magnetic FeO /NiO /SBA-15: The role of Ni in the bimetallic oxides at the nanometer level

2015 ◽  
Vol 179 ◽  
pp. 239-248 ◽  
Author(s):  
Xingfa Li ◽  
Wanpeng Liu ◽  
Jianqing Ma ◽  
Yuezhong Wen ◽  
Zucheng Wu
Keyword(s):  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Bimetallic Oxides
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