MoV−MoVIMixed Valence Polyoxometalates for Facile Synthesis of Stabilized Metal Nanoparticles:  Electrocatalytic Oxidation of Alcohols

2007 ◽  
Vol 111 (23) ◽  
pp. 8145-8148 ◽  
Author(s):  
Bineta Keita ◽  
Guangjin Zhang ◽  
Anne Dolbecq ◽  
Pierre Mialane ◽  
Francis Sécheresse ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Electrocatalytic Oxidation ◽  
Facile Synthesis ◽  
Oxidation Of Alcohols

scholarly journals A Facile Synthesis of ZrOx-MnCO3/Graphene Oxide (GRO) Nanocomposites for the Oxidation of Alcohols using Molecular Oxygen under Base Free Conditions

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 759 ◽  
Author(s):  
Syed Farooq Adil ◽  
Mohamed E. Assal ◽  
Mohammed Rafi Shaik ◽  
Mufsir Kuniyil ◽  
Nawaf M. AlOtaibi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Specific Activity ◽  
Oxidation Catalyst ◽  
Facile Synthesis ◽  
Reduced Graphene ◽  
Short Period ◽  
Oxidation Of Alcohols ◽  
Lower Temperature ◽  
Optimized Conditions

Graphene and its nanocomposites are showing excellent potential in improving the catalytic performances of different materials. However, the synthetic protocol and its form, such as graphene oxide (GRO) or highly reduced graphene oxide (HRG), influence the catalytic efficiencies. Here, we present, a facile synthesis of graphene oxide (GRO) and ZrOx-MnCO3-based nanocomposites [(1%)ZrOx–MnCO3/(x%)GRO] and their outcome as an oxidation catalyst for alcohol oxidation under mild conditions using O2 as a clean oxidant. The ZrOx–MnCO3/GRO catalyst prepared by incorporating GRO to pre-calcined ZrOx-MnCO3 using ball milling showed remarkable enhancement in the catalytic activities as compared to pristine ZrOx–MnCO3, ZrOx–MnCO3 supported on HRG or ZrOx–MnCO3/GRO prepared by in-situ growth of ZrOx–MnCO3 onto GRO followed by calcination. The catalyst with composition (1%)ZrOx–MnCO3/(1%)GRO exhibited superior specific activity (57.1 mmol/g·h) with complete conversion and >99% selectivity of the product within a short period of time (7 min) and at a relatively lower temperature (100 °C). The catalyst could be recycled at least five times with a negligible decrease in efficiency and selectivity. The catalytic study was extended to different aromatic as well as aliphatic alcohols under optimized conditions, which confirmed the efficiency and selectivity of the catalyst.

Facile Synthesis of CuBi2O4 Microspheres for Catalytic Oxidation of Alcohols Photocatalyst and Supercapacitor Applications

2016 ◽  
Vol 5 (4) ◽  
pp. 274-286
Author(s):  
S. Vadivel ◽  
D. Maruthamani ◽  
M. Kumaravel ◽  
R. Selvarajan ◽  
B. Saravanakumar ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Facile Synthesis ◽  
Oxidation Of Alcohols ◽  
Supercapacitor Applications

Thermosensitive Core-Shell Microgel as a “Nanoreactor” for Metal Nanoparticles

2009 ◽  
Vol 1234 ◽  
Author(s):  
Yan Lu ◽  
Matthias Ballauff
Keyword(s):  
Catalytic Activity ◽  
Metal Nanoparticles ◽  
Room Temperature ◽  
Catalytic Reduction ◽  
Core Shell ◽  
Carrier System ◽  
Volume Transition ◽  
Oxidation Of Alcohols ◽  
Influence Of Temperature On ◽  
Metal Nanocomposites

AbstractIn our study, thermosensitive core-shell microgel particles have been used as the carrier system for the deposition of metal nanoparticles, in which the core consists of polystyrene (PS) whereas the shell consists of poly(N-isopropylacrylamide) (PNIPA) network crosslinked by N, N'-methylenebisacrylamide (BIS). Silver, gold and palladium nanoparticles have been homogeneously embedded into thermosensitive PNIPA-networks, respectively. We demonstrate that the catalytic activity of the microgel-metal nanocomposites can be tuned by the volume transition within the microgel of these systems by using the catalytic reduction of 4-nitrophenol as the model reaction. Moreover, following the concept of a “green chemistry”, the oxidation of alcohols to the corresponding aldehydes or ketones can be carried out in aqueous solution under aerobic conditions at room temperature by using microgel-metal nanocomposites as the catalyst. The influence of temperature on the catalytic activity has been also investigated, which will be affected both by the volume transition of the microgel and by the change of polarity of the microgel in this case.

scholarly journals Facile Synthesis of (η5-Ph4C4COH)(CO)2RuCl and Catalytic Oxidation of Alcohols with Chloroform.

ChemInform ◽  
2003 ◽  
Vol 34 (17) ◽  
Author(s):  
Hyung Min Jung ◽  
Jun Ho Choi ◽  
Soon Ok Lee ◽  
Yu Hwan Kim ◽  
Jung Hye Park ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Facile Synthesis ◽  
Oxidation Of Alcohols
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