Poly(o-phenylenediamine) Submicrosphere-Supported Gold Nanocatalysts: Synthesis, Characterization, and Application in Selective Oxidation of Benzyl Alcohol

Langmuir ◽  
2009 ◽  
Vol 25 (18) ◽  
pp. 11054-11060 ◽  
Author(s):  
Jie Han ◽  
Yan Liu ◽  
Liya Li ◽  
Rong Guo
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Gold

scholarly journals Bimetallic Gold-Silver Nanoparticles Supported on Zeolitic Imidazolate Framework-8 as Highly Active Heterogenous Catalysts for Selective Oxidation of Benzyl Alcohol into Benzaldehyde

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1089 ◽  
Author(s):  
Lili Liu ◽  
Xiaojing Zhou ◽  
Yongmei Yan ◽  
Jie Zhou ◽  
Wenping Zhang ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Cluster Structure ◽  
Core Shell ◽  
Zeolitic Imidazolate Framework ◽  
Highly Active ◽  
Oxidation Of Benzyl Alcohol ◽  
Ag Particles ◽  
Gold Silver ◽  
Supported Gold

The metal-organic zeolite imidazolate framework-8 (ZIF-8) supported gold-silver bimetallic catalysts with a core-shell structure (Au@Ag/ZIF-8 and Ag@Au/ZIF-8) and cluster structure (AuAg/ZIF-8) were successfully prepared by the deposition-redispersion method. Energy dispersive X-ray spectroscopy (EDS) elemental mapping images displayed that in the Au@Ag/ZIF-8 catalyst, Ag atoms were deposited on an exposed Au surface, and core-shell structured Au@Ag particles with highly dispersed Ag as the shell were formed. Additionally, the XPS investigation at gold 4f levels and silver 3d levels indicated that the Au and Ag particles of Au@Ag/ZIF-8, Ag@Au/ZIF-8, and AuAg/ZIF-8 were in a zero valence state. Among the resultant catalysts obtained in this study, Ag@Au/ZIF-8 catalysts showed the highest catalytic activity for the selective oxidation of benzyl alcohol, followed by AuAg/ZIF-8 and Au@Ag/ZIF-8. The turnover frequency (TOF) values were in the order of Ag@Au/ZIF-8 (28.2 h−1) > AuAg/ZIF-8 (25.0 h−1) > Au@Ag/ZIF-8 (20.0 h−1) at 130 °C within 1 h under 8 bar O2 when using THF as solvent. The catalysts of Au@Ag/ZIF-8 and Ag@Au/ZIF-8 with core–shell structures have higher benzaldehyde selectivities (53.0% and 53.3%) than the AuAg/ZIF-8 catalyst (35.2%) in the selective oxidation of benzyl alcohol into benzaldehyde. The effect of the solvent, reaction temperature, reaction time, and reaction pressure on benzyl alcohol conversion and benzaldehyde selectivity in benzyl alcohol selective oxidation over Au@Ag/ZIF-8, Ag@Au/ZIF-8, and AuAg/ZIF-8 were also investigated. All of the catalysts showed excellent performance at 130 °C under 8 bar O2 within 1 h when using THF as the solvent in the selective oxidation of benzyl alcohol to benzaldehyde. Moreover, the catalysts can be easily recycled and used repetitively at least four times.

scholarly journals Deactivation Behavior of Supported Gold Palladium Nanoalloy Catalysts during the Selective Oxidation of Benzyl Alcohol in a Micropacked Bed Reactor

2017 ◽  
Vol 56 (45) ◽  
pp. 12984-12993 ◽  
Author(s):  
Noor Al-Rifai ◽  
Peter J. Miedziak ◽  
Moataz Morad ◽  
Meenakshisundaram Sankar ◽  
Conor Waldron ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Gold

Preparation of TiO2 Supported Gold Nano-Clusters by Photo-Deposition

2010 ◽  
Vol 148-149 ◽  
pp. 1258-1263 ◽  
Author(s):  
Xue Ming Wang ◽  
Guang Jun Wu ◽  
Lan Dong Li ◽  
Nai Jia Guan
Keyword(s):  
Catalytic Activity ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Gold Cluster ◽  
Gold Clusters ◽  
Deposition Method ◽  
Oxidation Of Benzyl Alcohol ◽  
Size And Morphology ◽  
Supported Gold ◽  
Xrd And Tem

TiO2 supported gold clusters are prepared by photo-deposition method. The effect of preparation parameters on the size and morphology of gold clusters are investigated. The as-prepared Au/TiO2 samples are characterized by means of ICP, XRD and TEM. Au/TiO2 samples with different gold cluster sizes are studied as possible catalysts in the selective oxidation of benzyl alcohol to benzaldehyde and smaller gold clusters are observed to exhibit higher catalytic activity.

Hybrid Ni–Al layered double hydroxide/graphene composite supported gold nanoparticles for aerobic selective oxidation of benzyl alcohol

RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 36066-36074 ◽  
Author(s):  
M. Y. Miao ◽  
J. T. Feng ◽  
Q. Jin ◽  
Y. F. He ◽  
Y. N. Liu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Activity ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Au Catalyst ◽  
Graphene Composite ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Gold Nanoparticles ◽  
Supported Gold ◽  
Double Hydroxide

A NiAl-LDH/RGO composite-supported Au catalyst was synthesized and exhibited high activity and stability in the selective oxidation of benzyl alcohol.

Selective Oxidation of Benzyl Alcohol Catalyzed by Pd/PMO-SBA-15 Catalyst

2011 ◽  
Vol 31 (11) ◽  
pp. 1369-1373
Author(s):  
Cheng LIU ◽  
Rong TAN ◽  
Donghong YIN ◽  
Ningya YU ◽  
Yuxu ZHOU
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Oxidation Of Benzyl Alcohol

scholarly journals Enhanced Selective Oxidation of Benzyl Alcohol via In Situ H2O2 Production over Supported Pd-Based Catalysts

ACS Catalysis ◽  
2021 ◽  
pp. 2701-2714
Author(s):  
Caitlin M. Crombie ◽  
Richard J. Lewis ◽  
Rebekah L. Taylor ◽  
David J. Morgan ◽  
Thomas E. Davies ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
H2o2 Production ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Pd

Selective oxidation of benzyl alcohol to benzaldehyde with H2O2 in water on epichlorohydrin-modified Fe3O4 microspheres

2015 ◽  
Vol 39 (6) ◽  
pp. 4924-4932 ◽  
Author(s):  
Shiwei Xiao ◽  
Chuntao Zhang ◽  
Rong Chen ◽  
Fengxi Chen
Keyword(s):  
Catalytic Activity ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Title Reaction ◽  
Enhancing Effect ◽  
Oxidation Of Benzyl Alcohol ◽  
Fe3o4 Microspheres

The enhancing effect of modification by epichlorohydrin on the catalytic activity of Fe3O4 microspheres in the title reaction was theoretically and experimentally confirmed.

Sign in / Sign up

Export Citation Format

Share Document