scholarly journals A novel iron(iii)-based heterogeneous catalyst for aqueous oxidation of alcohols using molecular oxygen

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78553-78560 ◽  
Author(s):  
Debojeet Sahu ◽  
Ana Rosa Silva ◽  
Pankaj Das
Keyword(s):  
Molecular Oxygen ◽  
Heterogeneous Catalyst ◽  
Alcohol Oxidation ◽  
Oxidation Reactions ◽  
Immobilized Catalyst ◽  
Oxidation Of Alcohols ◽  
Aqueous Oxidation

The first example of an iron(iii)-based heterogeneous catalyst for alcohol oxidation reactions in water employing molecular oxygen has been reported. Interestingly, the immobilized catalyst shows superior activity over its homogeneous counterpart.

scholarly journals Fe(II)-phthalocyanine supported on chitosan aerogel as a catalyst for oxidation of alcohols and alkyl arenes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fatemeh Azimi ◽  
Ahmad Poursattar Marjani ◽  
Sajjad Keshipour
Keyword(s):  
Aspect Ratio ◽  
Heterogeneous Catalyst ◽  
High Aspect Ratio ◽  
Room Temperature ◽  
Oxidation Reactions ◽  
Mild Conditions ◽  
Oxidation Of Alcohols ◽  
Aromatic Alcohols ◽  
Aldehydes And Ketones ◽  
Low Toxicity

AbstractManipulation of materials is considered as one of the eminent strategies to create desirable catalysts. In this regard, increasing surface area and decreasing dimensions of catalysts have been widely employed on account of effectiveness of these methods. Herein, aerogel form of chitosan as a sustainable, and high aspect ratio compound is employed as a green support for the catalytic purposes. Chitosan aerogel was modified with Fe(II)-phthalocyanine to produce a heterogeneous catalyst for oxidation reactions. The synthesized catalyst promoted the oxidation reactions of alcohols and alkyl arenes to the corresponding aldehydes and ketones using H2O2 as an oxidant in 24 h. The reactions for aliphatic and aromatic alcohols gave turnover numbers of 106–109 at 80 °C and 106–117 at room temperature, respectively. The oxidations of alkyl arenes were carried out with turnover numbers laying in the range of 106–117 at 100 °C. The low toxicity, inexpensive nature, and recycling possibility of the catalyst accompanied by the reaction mild conditions, clean oxidant, and excellent yields offer chitosan aerogel modified with Fe(II)-phthalocyanine as a promising catalyst for oxidation reactions.

Effect of oxygen functionalisation on the electrochemical behaviour of multiwall carbon nanotubes for alcohol oxidation reactions

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78403-78408 ◽  
Author(s):  
Bryan H. R. Suryanto ◽  
Chuan Zhao
Keyword(s):  
Carbon Nanotubes ◽  
Oxidation Process ◽  
Electrochemical Behaviour ◽  
Multiwall Carbon Nanotubes ◽  
Surface Oxidation ◽  
Alcohol Oxidation ◽  
Oxidation Reactions ◽  
Oxidation Of Alcohols ◽  
Effect Of Oxygen ◽  
Multiwall Carbon

Enhanced electrocatalytic oxidation of alcohols observed at multiwall carbon nanotubes following simple surface oxidation process.

Donor functionalized ruthenium N-heterocyclic carbene complexes in alcohol oxidation reactions

2014 ◽  
Vol 43 (14) ◽  
pp. 5335-5342 ◽  
Author(s):  
Abbas Raja Naziruddin ◽  
Chun-Shiuan Zhuang ◽  
Wan-Jung Lin ◽  
Wen-Shu Hwang
Keyword(s):  
Alcohol Oxidation ◽  
Oxidation Reactions ◽  
Carbene Complexes ◽  
Coordination Modes ◽  
Pincer Complex ◽  
Oxidation Of Alcohols

Ruthenium chelates bearing N^C^O-donors in bidentate or pincer coordination modes have been prepared. The ruthenium pincer complex catalyses the oxidation of alcohols to the corresponding aldehydes with yields as high as 99%.

scholarly journals Pyrrolidone Modifying Gold Nanocatalysts for Enhanced Catalytic Activities in Aerobic Oxidation of Alcohols and Carbon Monoxide

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Yingji Song ◽  
Xuefeng Chu ◽  
Yingzi Lin ◽  
Xiaotian Yang
Keyword(s):  
Carbon Monoxide ◽  
Molecular Oxygen ◽  
Aerobic Oxidation ◽  
Reaction System ◽  
Metal Nanoparticle ◽  
Au Nanoparticle ◽  
Oxidation Reactions ◽  
Simple Strategy ◽  
Oxidation Of Alcohols ◽  
Xps Study

Enhancing the catalytic activity of supported metal nanoparticle is a great demand but extremely challenging to make. We reported a simple strategy for enhancing the activities by employing the polyvinylpyrrolidone (PVP) additive, where a series of supported Au nanoparticle catalysts including Au/C, Au/BN, Au/TiO2, and Au/SBA-15 exhibited significantly higher activities in the oxidation of various alcohols and carbon monoxide by molecular oxygen after adding PVP to the reaction system. The XPS study indicates that PVP could electronically interact with Au to form high active Au sites for molecular oxygen, thus causing improved activities for the various oxidation reactions.

Boosting activity of molecular oxygen by pyridinium-based photocatalysts for metal-free alcohol oxidation

2021 ◽  
Vol 23 (3) ◽  
pp. 1337-1343
Author(s):  
Shuai Ma ◽  
Jing-Wang Cui ◽  
Cai-Hui Rao ◽  
Meng-Ze Jia ◽  
Yun-Rui Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Molecular Oxygen ◽  
Noble Metal ◽  
Photocatalytic Oxidation ◽  
Alcohol Oxidation ◽  
Free Alcohol ◽  
Metal Free ◽  
Co Catalysts ◽  
Mild Conditions ◽  
Oxidation Of Alcohols

Pyridinium molecules are developed as electron- and energy-transfer mediators to boost the activity of air oxygen and thus achieve highly efficient photocatalytic oxidation of alcohols without any noble metal and additional co-catalysts/additives under mild conditions.

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