Comparative study of the catalytic performance and final surface structure of Co3O4/La-CeO2 washcoated ceramic and metallic honeycomb monoliths

Hernández‐Garrido, Juan C.; Gaona, Diana; Gómez, Diana M.; Gatica, José M.; Sánz, Oihane; Rebled, J. M.; Peiró, F.; Calvino, José J.

doi:10.1016/j.cattod.2015.01.035

Cited by 28 publications

(17 citation statements)

References 29 publications

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“…Xie et al 757 found that preparation of a Co/AC catalyst in an air atmosphere promoted the formation of reactive oxygen species, leading to a high EA oxidation ability compared with the sample synthesized in nitrogen atmosphere. Gómez et al 758 and Hernández-Garrido et al 551 reported that Co/La-CeO2 was very active in the oxidation of EA, even more than the Pt/La-CeO2 catalyst.…”

Section: Ethyl Acetatementioning

confidence: 99%

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

et al. 2019

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Section: Ethyl Acetatementioning

confidence: 99%

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

et al. 2019

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“…However, the disadvantages of these catalysts, such as high cost, easypoisoning tendency and limited resources, hinder their wide industrial application. Alternatively, various transition metal oxides have been extensively studied over the past several years as oxidation catalysts because of their advantages including a lower price and adequate catalytic activities at relatively low temperature [3][4][5][6][7][8][9][10]. Among these metal oxides, Co 3 O 4 has attracted much attention due to its excellent catalytic performance in numerous reactions, e.g., the catalytic oxidation of CO, NO or VOCs as well as soot combustion [11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation

Zhang

Zhong

et al. 2018

Applied Catalysis A: General

174

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A B S T R A C TConsidering the harmful effects of volatile organic compounds (VOCs) on the atmosphere and public health, the search for proper catalytic materials for the effective catalytic elimination of VOCs remains one of the most pressing issues in the environmental field. In this study, a series of mesoporous Co 3 O 4 -n (n = 0.00, 0.0001, 0.01, 0.05, 0.10, 1.00, representing the concentration of HNO 3 aqueous solution) catalysts were fabricated by the acid treatment of Co 3 O 4 that was previously prepared via a hydroxycarbonate precipitation method (Co 3 O 4 -P). The catalytic performances of the prepared catalysts were evaluated for the model reaction of toluene oxidation. An obvious enhancement of catalytic activity in the reaction was achieved over the acid-treated Co 3 O 4 catalysts using lower HNO 3 concentrations, with Co 3 O 4 -0.01 exhibiting the optimum catalytic activity (T 90 = 225°C, 15°C lower than that of Co 3 O 4 -P), excellent catalytic durability under dry conditions and a high regeneration capability under humid conditions. Benefitting from the dilute acid treatment, the Co 3 O 4 -n (n = 0.01, 0.05, 0.10) catalysts presented higher specific surface areas, more weak acidic sites and higher abundances of surface Co 2+ and O ads species, which were regarded as the key factors responsible for their enhanced catalytic activities.

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“…Nevertheless, conventional SEM imaging does not provide information about the structure of the washcoating layer. To this end, an electron transparent cross-section of the monolith surface was prepared by FIB techniques and characterized by STEM, using High Angle-Annular Dark-Field mode (HAADF), Figure 2A,B, following the fruitful approach previously reported [13,14]. Figure 2A shows a low-mag view of the FIB cross-section (about 10 µm) of the monolith surface.…”

Section: Resultsmentioning

confidence: 99%

Ultrathin Washcoat and Very Low Loading Monolithic Catalyst with Outstanding Activity and Stability in Dry Reforming of Methane

et al. 2020

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A Ni/CeO2/ZrO2 catalyst with improved redox properties has been washcoated onto a honeycomb cordierite monolith in the form of a nonconventional alumina-catalyst layer, just a few nanometers thick. In spite of the very low active phase loading, the monolith depicts outstanding performance in dry reforming of methane, both in terms of activity, with values reaching the thermodynamic limit already at 750 °C, even under extreme Weight Hourly Space Velocities (WHSV 115–346 L·g−1·h−1), as well as in terms of stability during prolonged Time on Stream (TOS 24–48 h).

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Comparative study of the catalytic performance and final surface structure of Co3O4/La-CeO2 washcoated ceramic and metallic honeycomb monoliths

Cited by 28 publications

References 29 publications

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation

Ultrathin Washcoat and Very Low Loading Monolithic Catalyst with Outstanding Activity and Stability in Dry Reforming of Methane

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