Revealing the Intrinsic Nature of the Synergistic Effect Caused by the Formation of Heterojunctions in Cu–Cu2O/rGO-NH2 Nanomaterials in the Catalysis of Selective Aerobic Oxidation of Benzyl Alcohol

2021 ◽  
Author(s):  
Jiamei Ma ◽  
Zhiyin Xiao ◽  
Samuthirarajan Senthilkumar ◽  
Wei Zhong ◽  
Zhongquan Shen ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Benzyl Alcohol ◽  
Aerobic Oxidation ◽  
Intrinsic Nature ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation

On the selective aerobic oxidation of benzyl alcohol with Pd/Au-nanoparticles in batch and flow

2014 ◽  
Vol 3 (1) ◽  
pp. 99-110 ◽  
Author(s):  
Hannes Alex ◽  
Norbert Steinfeldt ◽  
Klaus Jähnisch ◽  
Matthias Bauer ◽  
Sandra Hübner
Keyword(s):  
Catalytic Activity ◽  
Benzyl Alcohol ◽  
Aerobic Oxidation ◽  
X Ray ◽  
X Ray Scattering ◽  
Oxidation Of Benzyl Alcohol ◽  
Transmission Electron ◽  
Vis Spectroscopy ◽  
Selective Aerobic Oxidation

AbstractNanoparticles (NP) have specific catalytic properties, which are influenced by parameters like their size, shape, or composition. Bimetallic NPs, composed of two metal elements can show an improved catalytic activity compared to the monometallic NPs. We, herein, report on the selective aerobic oxidation of benzyl alcohol catalyzed by unsupported Pd/Au and Pd NPs at atmospheric pressure. NPs of varying compositions were synthesized and characterized by UV/Vis spectroscopy, transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). The NPs were tested in the model reaction regarding their catalytic activity, stability, and recyclability in batch and continuous procedure. Additionally, in situ extended X-ray absorption fine structure (EXAFS) measurements were performed in order to get insight in the process during NP catalysis.

On the selective aerobic oxidation of benzyl alcohol with Pd/Au-nanoparticles in batch and flow

nano Online ◽  
2016 ◽  
Author(s):  
Hannes Alex ◽  
Norbert Steinfeldt ◽  
Klaus Jähnisch ◽  
Matthias Bauer ◽  
Sandra Hübner
Keyword(s):  
Benzyl Alcohol ◽  
Au Nanoparticles ◽  
Aerobic Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation

Aerobic oxidation of benzyl alcohol over TEMPO-functionalized polyimide as a heterogeneous catalyst

2017 ◽  
Vol 29 (6) ◽  
pp. 646-650 ◽  
Author(s):  
Yuta Nabae ◽  
Masatomo Mikuni ◽  
Nobuhiro Takusari ◽  
Teruaki Hayakawa ◽  
Masa-aki Kakimoto
Keyword(s):  
Benzyl Alcohol ◽  
Heterogeneous Catalyst ◽  
Aerobic Oxidation ◽  
Pyromellitic Dianhydride ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation ◽  
End Capping

Hyperbranched polyimide functionalized with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) was studied as a heterogeneous catalyst for the aerobic oxidation of benzyl alcohol. The catalyst material was synthesized by an A2 + B3 polymerization of pyromellitic dianhydride and 1,3,5-tris(4-aminophenyl)benzene followed by an end-capping reaction with 4-amino-TEMPO. Selective aerobic oxidation of benzyl alcohol to benzaldehyde has been demonstrated using the prepared materials as a catalyst. The recyclability of these materials has been confirmed by recycling tests using the catalyst collected by filtration.

scholarly journals Ru nanoparticles supported on N-doped reduced graphene oxide as valuable catalyst for the selective aerobic oxidation of benzyl alcohol

2020 ◽  
Vol 357 ◽  
pp. 8-14 ◽  
Author(s):  
Carolina S. Ramirez-Barria ◽  
Mark Isaacs ◽  
Christopher Parlett ◽  
Karen Wilson ◽  
Antonio Guerrero-Ruiz ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Benzyl Alcohol ◽  
Reduced Graphene Oxide ◽  
Aerobic Oxidation ◽  
Ru Nanoparticles ◽  
Oxidation Of Benzyl Alcohol ◽  
Reduced Graphene ◽  
Selective Aerobic Oxidation

Highly selective aerobic oxidation of biomass alcohol to benzaldehyde by an in situ doped Au/TiO2 nanotube photonic crystal photoanode for simultaneous hydrogen production promotion

2017 ◽  
Vol 5 (24) ◽  
pp. 12407-12415 ◽  
Author(s):  
Zhongyi Wu ◽  
Jie Wang ◽  
Zhaoyu Zhou ◽  
Guohua Zhao
Keyword(s):  
Photonic Crystal ◽  
Hydrogen Production ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Aerobic Oxidation ◽  
Tio2 Nanotube ◽  
Photoelectrochemical Cell ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation

Highly selective oxidation of benzyl alcohol for simultaneous hydrogen production promotion with solar-driven dual photoelectrode photoelectrochemical cell.

scholarly journals Selective aerobic oxidation of benzyl alcohol on alumina supported Au-Ru and Au-Ir catalysts

2020 ◽  
Vol 492 ◽  
pp. 110917 ◽  
Author(s):  
G. Nagy ◽  
T. Gál ◽  
D.F. Srankó ◽  
G. Sáfrán ◽  
B. Maróti ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Aerobic Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation

scholarly journals Highly Dispersed RuOOH Nanoparticles on Silica Spheres: An Efficient Photothermal Catalyst for Selective Aerobic Oxidation of Benzyl Alcohol

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Qilin Wei ◽  
Kiersten G. Guzman ◽  
Xinyan Dai ◽  
Nuwan H. Attanayake ◽  
Daniel R. Strongin ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Surface Area ◽  
Light Absorption ◽  
Aerobic Oxidation ◽  
Active Surface ◽  
Ambient Conditions ◽  
Strong Light ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation ◽  
Absorption Power

AbstractPhotothermal catalysis represents a promising strategy to utilize the renewable energy source (e.g., solar energy) to drive chemical reactions more efficiently. Successful and efficient photothermal catalysis relies on the availability of ideal photothermal catalysts, which can provide both large areas of catalytically active surface and strong light absorption power simultaneously. Such duplex requirements of a photothermal catalyst exhibit opposing dependence on the size of the catalyst nanoparticles, i.e., smaller size is beneficial for achieving higher surface area and more active surface, whereas larger size favors the light absorption in the nanoparticles. In this article, we report the synthesis of ultrafine RuOOH nanoparticles with a size of 2–3 nm uniformly dispersed on the surfaces of silica (SiOx) nanospheres of hundreds of nanometers in size to tackle this challenge of forming an ideal photothermal catalyst. The ultrasmall RuOOH nanoparticles exhibit a large surface area as well as the ability to activate adsorbed molecular oxygen. The SiOx nanospheres exhibit strong surface light scattering resonances to enhance the light absorption power of the small RuOOH nanoparticles anchored on the SiOx surface. Therefore, the RuOOH/SiOx composite particles represent a new class of efficient photothermal catalysts with a photothermal energy conversion efficiency of 92.5% for selective aerobic oxidation of benzyl alcohol to benzylaldehyde under ambient conditions.

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