In situ fabrication of highly active γ-MnO2/SmMnO3 catalyst for deep catalytic oxidation of gaseous benzene, ethylbenzene, toluene, and o-xylene

Liu, Lizhong; Li, Juexue; Zhang, Hongbo; Li, Lü; Zhou, Pin; Meng, Xianglong; Guo, Mingming; Jia, Jinping; Sun, Tonghua

doi:10.1016/j.jhazmat.2018.09.012

Cited by 169 publications

(79 citation statements)

References 56 publications

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“…During the toluene oxidation reaction, the activated sites belonged to the C–H bond on the methyl group of toluene. The C–H bond dissociation energy of the phenyl group and methyl group are 110 and 75 kcal/mol, respectively, and benzene is relatively difficult to be oxidized compared with toluene [46,47]. Combining with the above intermediates analysis, we speculated the toluene degradation mechanism under IPC reaction: toluene was decomposed and underwent a series of consequent reactions: toluene → benzaldehyde → benzoic acid → chain carboxylic acids (maleic anhydride) → formic acid and acetic acid → CO 2 .…”

Section: Resultsmentioning

confidence: 99%

In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

Ying

Wang

et al. 2019

IJERPH

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Volatile organic compounds (VOCs) emission from anthropogenic sources has becoming increasingly serious in recent decades owing to the substantial contribution to haze formation and adverse health impact. To tackle this issue, various physical and chemical techniques are applied to eliminate VOC emissions so as to reduce atmospheric pollution. Among these methods, non-thermal plasma (NTP) is receiving increasing attention for the higher removal efficiency, non-selectivity, and moderate operation, whereas the unwanted producing of NO2 and O3 remains important drawback. In this study, a dielectric barrier discharge (DBD) reactor with wedged high voltage electrode coupled CuO foam in an in plasma catalytic (IPC) system was developed to remove toluene as the target VOC. The monolith CuO foam exhibits advantages of easy installation and controllable of IPC length. The influencing factors of IPC reaction were studied. Results showed stronger and more stable plasma discharge in the presence of CuO foam in DBD reactor. Enhanced performance was observed in IPC reaction for both of toluene conversion rate and CO2 selectivity compared to the sole NTP process at the same input energy. The longer the contributed IPC length, the higher the toluene removal efficiency. The toluene degradation mechanism under IPC condition was speculated. The producing of NO2 and O3 under IPC process were effectively removed using Na2SO3 bubble absorption.

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Section: Resultsmentioning

confidence: 99%

In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

Ying

Wang

et al. 2019

IJERPH

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“…al has observed that the preparation methodhas an important role in influencing the rate of VOC's combustion reaction. [3] In their study a series of LaMnO 3 samples has been prepared by using three different methodologies such as citrate sol gel, glycine combustion and co-precipitation. Among the three methods it has been found that sol gel methods resulted the products with high surface area, strong reducibility at low-temperature and higher number of surface adsorbed oxygen species which enhance catalytic rate of reaction.…”

Section: Effect Of Redox Behaviormentioning

confidence: 99%

“…[1] Perovskite oxides are widely studied due to their stability and accessibility coupled with interesting properties.They contain many manufacturing applications in ceramic objects, electronics, nuclear research, and mainly in catalysis. [2][3][4][5][6] In the ideal cubic (ABO 3 ) perovskite oxide, the A cation is located at the body-centered position, and the BO 6 octahedra placed in a corner shared arrangement with each other. The formation and stability of the perovskites depend on the size and charge of the cations (A and B) and are exemplified appropriately by Goldschmidt as a tolerance factor T f .…”

Section: Introductionmentioning

confidence: 99%

A Brief Review on Key Role of Perovskite Oxides as Catalyst

Yadav

Atri

et al. 2021

ChemistrySelect

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The research work conducted mainly on the reduction reaction of NOx, the oxidation reaction of CO, and hydrocarbons, electro‐catalysis of oxygen in alkaline medium, and photocatalytic water splitting has proved excellent catalytic behavior of perovskite oxides.[16–23] Although only a few reports published usages of the perovskite oxides as catalysts for the organic transformation such as catalytic hydrogenation, Ullmann, Sonogashira reactions, and Suzuki couplings.[24–26] Yoon et al. have prepared K2CO3 based LaMn1‐xCuxO3 perovskite oxide as a potential catalyst and discussed their mechanistic aspects in various reactions occurring at room temperature.[27] Recently, Wu and Ajayan group has demonstrated the relationship between stoichiometry and activity of pure and B‐site substituted layered perovskite oxide in the decomposition reaction of isopropanol by considering Sr2Sn1‐xRuxO4 (0≤x≤1) as catalyst.[28] In this scenario, present work aims to summarize the contribution of perovskite oxides as catalyst in numerous organic syntheses and catalysis, photocatalysis, and electrocatalysis reactions.

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“…3. The bioenergy has been found in benzene extract of Nerium indicum leaves: o-Xylene can be used as aviation gasoline additive [12], 2-Ethylhexanol can be used as fuel additive for diesel engine, and triethylamine can be directly used as high energy fuel [13,14]. Many chemical raw materials were also detected in the benzene extract of Nerium indicum leaves.…”

Section: Temperament Analysismentioning

confidence: 99%

Diverse resourcing of Nerium indicum leaves for bio-utilization

Chen

Lai

et al. 2020

THERM SCI

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Nerium indicum is an ornamental plant that is widely distributed in tropical and subtropical regions wordwide. It has toxic and medicinal properties which is closely related to the bioactive ingredients contained in Nerium indicum. In our research, the leaves of Nerium indicum was used as raw materials to study the chemical constituents and their effects. The chemical constituents of the leaves were analyzed by FT-IR and GC-MS with alcohol, benzene and acetone as organic solvents. A total of 73 compounds were obtained by acetone organic solvent, 25 compounds were extracted from benzene and 146 compounds were obtained from alcohol. Rich bioactive and bioenergy components were found in all three kinds of extract, suggesting that Nerium indicum leaves are of great significance for the diverse resourcing of bio-utilization including biomedicine, bioenergy, aroma, food additives.

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In situ fabrication of highly active γ-MnO2/SmMnO3 catalyst for deep catalytic oxidation of gaseous benzene, ethylbenzene, toluene, and o-xylene

Cited by 169 publications

References 56 publications

In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

A Brief Review on Key Role of Perovskite Oxides as Catalyst

Diverse resourcing of Nerium indicum leaves for bio-utilization

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