Stainless steel grid mesh-supported CVD made Co3O4 thin films for catalytic oxidation of VOCs of olefins type at low temperature

Kouotou, Patrick Mountapmbeme; Pan, Guan‐Fu; Weng, Jian; Song, Fan; Tian, Zhen‐Yu

doi:10.1016/j.jiec.2015.12.039

Cited by 29 publications

(12 citation statements)

References 85 publications

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“…Del Río et al [16] prepared mesoporous nanowires of Co 3 O 4 on stainless-steel wires by the ammonia evaporation-induced method and used them in steam reforming of ethanol. Thin Co 3 O 4 films were deposited on stainless-steel grid mesh using one-step chemical vapor deposition method [17]. Klyushina et al [15] prepared supported Co 3 O 4 catalysts by heating the cobalt hydroxide synthesized electrochemically on stainless-steel meshes.…”

Section: Introductionmentioning

confidence: 99%

Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation

et al. 2019

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Catalytic total oxidation is an effective procedure to minimize emissions of volatile organic compounds (VOC) emissions in industrial gases. Catalysts in the form of meshes are remarkable as they minimize the internal diffusion of reactants during the reaction as well as the need of expensive active components. In this paper, various conditions of radio frequency magnetron sputtering of cobalt on stainless-steel meshes was applied during catalyst preparation. Properties of the supported Co3O4 catalysts were characterized by SEM, XRD, temperature programmed reduction (H2-TPR), FTIR, XPS, and Raman spectroscopy. Catalytic activity was examined in deep oxidation of ethanol chosen as a model VOC. Performance of the catalysts depended on the amount of Co3O4 deposited on the supporting meshes. According to specific activities (the amounts of ethanol converted per unit weight of Co3O4), smaller Co3O4 particle size led to increased catalytic activity. The catalyst prepared by sputtering in an Ar+O2 atmosphere without calcination showed the highest catalytic activity, which decreased after calcination due to enlargement of Co3O4 particles. However, specific activity of this catalyst was more than 20 times higher than that of pelletized commercial Co3O4 catalyst used for comparison.

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Section: Introductionmentioning

confidence: 99%

Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation

et al. 2019

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“…In addition, the dendrite growth effect also caused an increase in the specific surface area of the support, which promoted the catalytic oxidation of acetone. Kouotou et al ( 2016 ) used Pulsed Spray Chemical Vapor Deposition (PSE-CVD) to deposit a homogeneous layer of Co 3 O 4 film on the stainless steel grid.…”

Section: Preparation Of Stainless Steel Catalystmentioning

confidence: 99%

Stainless steel catalyst for air pollution control: structure, properties, and activity

Wang

Zhao

Tang

et al. 2022

Environ Sci Pollut Res

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With the awakening of environmental awareness, the importance of air quality to human health and the proper functioning of social mechanisms is becoming increasingly prominent. The low cost and high efficiency of catalytic technique makes it a natural choice for achieving deep air purification. Stainless steel alloys have demonstrated their full potential for application in a variety of catalytic fields. The diversity of 3D networks or fibrous structures increases the turbulence within the heterogeneous catalysis, balance the temperature distribution in the reaction bed and, in combination with a highly thermally conductive skeleton, avoid agglomeration and deactivation of the active components; corrosion resistance and thermal stability are adapted to highly endothermic/exothermic or corrosive reaction environments; oxide layers formed by bulk transition metals activated by thermal treatment or etching can significantly alter the physico-chemical properties between the substrate and active species, further improving the stability of stainless steel catalysts; suitable electronic conductivity can be applied to the electrothermal catalysis, which is expected to provide guidance for the reduction of intermittent emission exhausts and the storage of renewable energy. The current applications of stainless steel as catalyst or support in the air purification have covered soot particle capture and combustion, catalytic oxidation of VOCs, SCR, and air sterilization. This paper summarizes several preparation methods and presents the relationships between the preparation process and the activity, and reviews its application and the current status of research in atmospheric environmental management, proposing the advantages and challenges of the stainless steel-based catalysts.

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“…Recently, petroleum product specifications have become stricter to ensure higher standards of environmental protection [8,[176][177][178][179][180][181][182][183][184][185][186][187]. Large quantities of nickel and sulfur in crude oil make the refining process heavier; unfortunately, the current conventional processes to remove these materials require a significant investment and long reaction times [188][189][190][191].…”

Section: Environmental Applicationsmentioning

confidence: 99%

Recently developed applications for natural hydrophilic polymers

Halake

Kim

Birajdar

et al. 2016

Journal of Industrial and Engineering Chemistry

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Stainless steel grid mesh-supported CVD made Co3O4 thin films for catalytic oxidation of VOCs of olefins type at low temperature

Cited by 29 publications

References 85 publications

Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation

Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation

Stainless steel catalyst for air pollution control: structure, properties, and activity

Recently developed applications for natural hydrophilic polymers

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