Catalytic wet air oxidation of aqueous solution of phenol in a fixed bed reactor over Ru catalysts supported on ceria promoted MCM-41

Sol-gel Zr0.1Ce0.9O2 and Zr0.1(Ce0.75Pr0.25)O2 mixed oxides and coprecipitated pure ceria CeO2 displaying the fluorine type structure have been used as platinum or ruthenium catalysts’ supports for catalytic wet air oxidation (CWAO) of aqueous solution of acetic acid (78 mmol.L-1). These catalysts were prepared by conventional impregnation (5 wt-%) from platinum and ruthenium precursor salts or by exchange (~2 wt-%) in the case of ruthenium. A screening of catalysts in CWAO at 200°C under 2 MPa was performed and reveals that the best platinum catalyst is supported on pure ceria displaying large surface. For ruthenium catalysts, the highest conversion after 3 hours of reaction has been reached by the Ru/Zr-Ce-O system.

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Single-atom nickel confined nanotube superstructure as support for catalytic wet air oxidation of acetic acid

Communications Chemistry ◽

10.1038/s42004-019-0239-8 ◽

2019 ◽

Vol 2 (1) ◽

Cited By ~ 3

Author(s):

Chengyu Jin ◽

Lei Ma ◽

Wenjing Sun ◽

Peiwei Han ◽

Xiangdong Tan ◽

...

Keyword(s):

Acetic Acid ◽

Catalytic Activity ◽

Noble Metal ◽

Intrinsic Property ◽

Single Atom ◽

General Strategy ◽

Catalytic Wet Air Oxidation ◽

Air Oxidation ◽

Wet Air Oxidation ◽

Ru Nanoparticles

AbstractSingle-atom confined materials (SACMs) have been widely researched as catalysts in many fields within recent years. However, this class of materials may not only serve as a catalyst but also as a support material for certain reactions. Here we propose a general strategy to use SACMs as supports for tuning loaded noble metal (e.g., Ru) nanoparticles with enhanced catalytic activity. As a proof of concept, a nickel single-atom confined nitrogen-doped carbon nanotube (NCNT) superstructure is prepared as a support to load noble metal Ru for catalytic wet air oxidation of acetic acid. Improved catalytic activity with a mineralization rate of ~97.5% is achieved. Further, adsorption configurations based on DFT calculations also confirm our deduction that the introduction of single-atom Ni changes the intrinsic property of NCNTs and affects the loaded active Ru nanoparticles.

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Application of Ce0.33Zr0.63Pr0.04O2-supported noble metal catalysts in the catalytic wet air oxidation of 2-chlorophenol: Influence of the reaction conditions

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2007.11.031 ◽

2008 ◽

Vol 80 (3-4) ◽

pp. 237-247 ◽

Cited By ~ 18

Author(s):

N LI ◽

C DESCORME ◽

M BESSON

Keyword(s):

Noble Metal ◽

Metal Catalysts ◽

Catalytic Wet Air Oxidation ◽

Air Oxidation ◽

Wet Air Oxidation ◽

Reaction Conditions ◽

Noble Metal Catalysts

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Influence of the structure of TiO2, CeO2, and CeO2-TiO2 supports on the activity of Ru catalysts in the catalytic wet air oxidation of acetic acid

Rare Metals ◽

10.1007/s12598-011-0417-z ◽

2011 ◽

Vol 30 (5) ◽

pp. 488-495 ◽

Cited By ~ 15

Author(s):

Shaoxia Yang ◽

Wanpeng Zhu ◽

Xingang Wang

Keyword(s):

Acetic Acid ◽

Catalytic Wet Air Oxidation ◽

Air Oxidation ◽

Wet Air Oxidation ◽

Ru Catalysts

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Deactivation and reactivation of noble metal catalysts tested in the Catalytic Wet Air Oxidation of phenol

Catalysis Today ◽

10.1016/j.cattod.2010.01.025 ◽

2010 ◽

Vol 151 (1-2) ◽

pp. 143-147 ◽

Cited By ~ 30

Author(s):

S. Keav ◽

A. Martin ◽

J. Barbier ◽

D. Duprez

Keyword(s):

Noble Metal ◽

Metal Catalysts ◽

Catalytic Wet Air Oxidation ◽

Air Oxidation ◽

Wet Air Oxidation ◽

Noble Metal Catalysts ◽

Oxidation Of Phenol

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Influence of Ru precursors on the activity of Ru/Al2O3–TiO2 catalysts for catalytic wet air oxidation of high concentration organic compounds

RSC Advances ◽

10.1039/c6ra13235a ◽

2016 ◽

Vol 6 (77) ◽

pp. 73810-73816 ◽

Cited By ~ 3

Author(s):

Fagui Lu ◽

Chaoying Yu ◽

Xu Meng ◽

Jinqi Zhang ◽

Gexin Chen ◽

...

Keyword(s):

Organic Compounds ◽

Catalytic Wet Air Oxidation ◽

Air Oxidation ◽

Wet Air Oxidation ◽

High Concentration ◽

Ru Catalysts

The nature of the Ru precursors affected the performance of Ru catalysts with those prepared from chloride-free Ru precursors being more active than those prepared from chlorine-containing Ru precursors.

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