Enhancement of the Catalytic Activity of Titanium-Based Terminal Olefin Epoxidation Catalysts via Surface Modification with Functionalized Protic Molecules

ACS Catalysis ◽  
2011 ◽  
Vol 1 (5) ◽  
pp. 455-467 ◽  
Author(s):  
Paul J. Cordeiro ◽  
T. Don Tilley
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Olefin Epoxidation ◽  
Terminal Olefin ◽  
Terminal Olefin Epoxidation

Mesoporous Polymeric Support Retaining High Catalytic Activity of Polyoxotungstate for Liquid-Phase Olefin Epoxidation using H2O2

ChemCatChem ◽  
2011 ◽  
Vol 3 (9) ◽  
pp. 1435-1438 ◽  
Author(s):  
Sanjeev P. Maradur ◽  
Changbum Jo ◽  
Dae-Heung Choi ◽  
Kyeongyeon Kim ◽  
Ryong Ryoo
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
High Catalytic Activity ◽  
Olefin Epoxidation ◽  
Polymeric Support

Enhanced catalytic activity of Ni-Re/H- AlMCM-41 catalyst via surface modification for hydrodenitrogenation of o-toluidine

2018 ◽  
Vol 5 (6) ◽  
pp. 065516 ◽  
Author(s):  
K Sureshkumar ◽  
K Shanthi ◽  
N R Sasirekha ◽  
J Jegan ◽  
S J Sardhar Basha
Keyword(s):  
Surface Modification ◽  
Catalytic Activity

THE EFFECT OF GEL WATER ON CATALYTIC ACTIVITY: III. THE DECOMPOSITION OF FORMIC ACID OVER ALUMINA

1943 ◽  
Vol 21b (2) ◽  
pp. 21-33
Author(s):  
L. A. Munro ◽  
D. J. Dewar ◽  
S. Gertsman ◽  
G. Monteith
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Formic Acid ◽  
Water Content ◽  
Maximum Activity ◽  
Hydrous Oxide ◽  
X Ray ◽  
Fibril Structure ◽  
Two Peaks ◽  
Catalytic Power

The effect of gel water content on the catalytic activity of alumina in the decomposition of formic acid at 215 and 250 °C. has been investigated. The previous observations on the dehydration of ethyl alcohol to ether and ethylene are paralleled by the results with formic acid. There are two peaks in the curves showing the relation between activity and gel water content. The ratio CO/CO2 changes with gel water content, i.e., the course of the reaction can be altered by surface modification of the catalyst. The gel showing maximum catalytic activity exhibits greatest sorption. The temperature of activation of a hydrous oxide is not as accurate a measure of the catalytic power as the gel water content. X-ray studies of the catalysts show a threefold change in the structure in the 36 to 0% range of water content, but the fibril structure of the gel of maximum activity (5.3% water) is the same as that for minimum activity. An explanation is suggested.

Surface modification of LaFeO3 by Co-Pi electrochemical deposition as an efficient photoanode under visible light

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26192-26198 ◽  
Author(s):  
Q. Peng ◽  
J. Wang ◽  
Y. W. Wen ◽  
B. Shan ◽  
R. Chen
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Visible Light ◽  
Electrochemical Deposition ◽  
Carrier Separation

The PEC performance of LaFeO3 is promoted by Co-Pi coating due to improved surface catalytic activity and enhanced carrier separation.

scholarly journals Inorganic Nanozymes: Prospects for Disease Treatments and Detection Applications

2021 ◽  
Vol 9 ◽  
Author(s):  
Peng Wang ◽  
Dongyu Min ◽  
Guoyou Chen ◽  
Minghui Li ◽  
Liquan Tong ◽  
...  
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Metal Oxide ◽  
Noble Metal ◽  
Future Development ◽  
Size Structure ◽  
Tumor Therapy ◽  
High Catalytic Activity ◽  
Structure Surface ◽  
Catalytic Mechanisms

In recent years, with the development of nanomaterials, a slice of nanomaterials has been demonstrated to possess high catalytic activity similar to natural enzymes and counter the dilemmas including easy inactivation and low yield natural of enzymes, which are labeled as nanozymes. The catalytic activity of nanozymes could be easily regulated by size, structure, surface modification and other factors. In comparison with natural enzymes, nanozymes featured with a more stable structure, economical preparation and preservation, diversity of functions and adjustable catalytic activity, thus becoming the potentially ideal substitute for natural enzymes. Generally, the are mainly three types containing metal oxide nanozymes, noble metal nanozymes and carbon-based nanozymes, owing various applications in biomedical, energy and environmental fields. In this review, to summarize the recent representative applications of nanozymes, and potentially explore the scientific problems in this field at the same time, we are going to discuss the catalytic mechanisms of diverse nanozymes, with the emphasis on their applications in the fields of tumor therapy, anti-inflammatory and biosensing, hoping to help and guide the future development of nanozymes.

Direct oxidative carboxylation of terminal olefins to cyclic carbonates by tungstate assisted-tandem catalysis

2021 ◽  
Author(s):  
ROBERTO CALMANTI ◽  
Maurizio Selva ◽  
Alvise Perosa
Keyword(s):  
Catalytic Activity ◽  
Cyclic Carbonates ◽  
Olefin Epoxidation ◽  
Tandem Catalysis ◽  
Dual Reactivity ◽  
Terminal Olefins

Tungstate catalysts are well established for olefin epoxidation reactions, while their catalytic activity for CO2 insertion in epoxides is a more recent discovery. This dual reactivity of tungstate prompted the...

Hydrogen bond controlled formation of trans-dihydroxo porphyrinato platinum(IV) complexes: Synthesis, characterization and catalytic activity in olefin epoxidation

2015 ◽  
Vol 434 ◽  
pp. 198-208 ◽  
Author(s):  
Tahereh Alemohammad ◽  
Nasser Safari ◽  
Saeed Rayati ◽  
Mahin Gheidi ◽  
Anahita Mortazavimanesh ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Catalytic Activity ◽  
Olefin Epoxidation

Surface chemistry modulated introduction of multifunctionality within Co3O4 nanocubes

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16311-16318 ◽  
Author(s):  
Monalisa Pal ◽  
Ashutosh Kumar Singh ◽  
Rupali Rakshit ◽  
Kalyan Mandal
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Surface Chemistry ◽  
Organic Ligand ◽  
Multicolor Fluorescence

Multifunctional Co3O4 nanocubes, having simultaneously intrinsic multicolor fluorescence and excellent catalytic activity in the degradation of harmful pigments have been developed by facile surface modification with small organic ligand.

Sign in / Sign up

Export Citation Format

Share Document