Impact of metal doping on the activity of Au/CeO2 catalysts for catalytic abatement of VOCs and CO in waste gases

Tabakova, T.; Dimitrov, D.; Manzoli, Maela; Vindigni, Floriana; Petrova, P.; Ilieva, L.; Zanella, Rodolfo; Ivanov, K.

doi:10.1016/j.catcom.2013.01.021

Cited by 21 publications

(10 citation statements)

References 31 publications

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“…In addition, in comparison with thermal methods, catalytic oxidation needs lower temperature leading to lower NO X emission (Gluhoi and Nieuwenhuys, 2007). During recent years, catalytic oxidation of VOCs has been widely studied (Huang et al, 2008;Kovanda and Jira´tova´, 2011;Li et al, 2013a;Nogueira et al, 2011;Tabakova et al, 2013). According to the literature, supported noble metal catalysts have been known as highly active catalysts for VOC removal (Oliveira et al, 2008;Wang et al, 2011), CO oxidation (Estifaee et al, 2014;Tomita et al, 2012) and methanol oxidation (Arnby et al, 2004;Malakhova et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

The potential use of HNO 3 -treated clinoptilolite in the preparation of Pt/CeO 2 -Clinoptilolite nanostructured catalyst used in toluene abatement from waste gas stream at low temperature

Amereh

Haghighi

Estifaee

2018

Arabian Journal of Chemistry

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In this paper, CeO 2 (30%)/Clinoptilolite was synthesized via HNO 3 treatment and coprecipitation methods and then 1% Pt was dispersed over support by ultrasound assisted wet impregnation. The synthesized samples were characterized using XRF, XRD, FESEM, N 2 adsorption and FTIR techniques. The obtained results from XRD revealed the main phase in utilized clay is clinoptilolite and also formation of amorphous structure was proved after acid treatment. FESEM micrographs confirmed significant structural changes in clinoptilolite after acid treatment and also formation of ceria nanoparticles. N 2 adsorption presented large enough surface area for Pt/CeO 2 -Clinoptilolite nanostructured catalyst to be used for toluene oxidation. Finally, activity results indicated that synthesized nanostructured catalyst was highly active and stable and could eliminate more than 90% of toluene at 130°C. Utilizing inexpensive materials in synthesis and assisting ultrasound in dispersion of active phase have made Pt(1%)/CeO 2 (30%)-Clinoptilolite a nominee to be used for catalytic oxidation of toluene. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Introductionmentioning

confidence: 99%

The potential use of HNO 3 -treated clinoptilolite in the preparation of Pt/CeO 2 -Clinoptilolite nanostructured catalyst used in toluene abatement from waste gas stream at low temperature

Amereh

Haghighi

Estifaee

2018

Arabian Journal of Chemistry

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“…More recently, most studies [5][6][7][8][9][10][11][12] in attempting to reduce VOC emissions and meet the increasingly stringent environmental quality standards (EQS) have focused on catalytic oxidation. Various combinations of metal oxides and supported metals (both precious and nonprecious) have been investigated for their potential to act as efficient oxidation catalysts.…”

Section: Introductionmentioning

confidence: 99%

Strong synergism between gold and manganese in an Au–Mn/triple-oxide-support (TOS) oxidation catalyst

Ali

Daous

Khamis

et al. 2015

Applied Catalysis A: General

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“…Mixed oxides (MnCuO, MnCeO, CoCeO and CoMnO) have demonstrated good catalytic performance . Cerium oxide has also been reported to be an effective catalyst for the oxidation of VOCs . Konsolakis et al .…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21][22] Cerium oxide has also been reported to be an effective catalyst for the oxidation of VOCs. [23][24][25][26][27] Konsolakis et al 28 Chen et al 29 and Carabineiro et al 30 studied cerium-containing mixed oxides (together with Co, Cu, Ni or La) and found that these oxides are good catalysts for oxidation of toluene or ethyl acetate. Unfortunately, heat treatment of some of these oxide catalysts (generally >400 ∘ C) can cause sintering and aggregation of the metal particles.…”

Section: Introductionmentioning

confidence: 99%

The effect of cerium incorporation on the catalytic performance of cobalt and manganese containing layer double oxides for acetone oxidation

Zhao

Liu

Han

et al. 2018

J of Chemical Tech & Biotech

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Background Acetone is a volatile organic compound (VOC) that is often associated with poor air quality. Acetone has chronic toxicity towards humans and has a significant impact on the overall atmospheric air quality. In this study, several layer double oxides (with M2+ = Mg, Ni, Co or Mn and M3+ = Al or Ce) were tested as catalysts for acetone oxidation. Results MnAl‐LDO was found to be the most efficient catalyst. 50% acetone conversion was achieved at 170 °C (T50%) and 90% conversion at 200 °C (T90%).The incorporation of Ce on MnCeAl‐LDO did not improve its catalytic properties over MnAl‐LDO (the T50% for MnCeAl‐LDO was 12 °C higher than for MnAl‐LDO). The good performance on MnAl‐LDO was due to the presence of Mn3+ and the low reduction temperature. MnAl‐LDO was not affected when water was introduced into the catalytic reaction setup. Less than 5% fluctuation in the acetone conversion rate at 170 and 200 °C was detected in the presence of 5.5% water. The incorporation of Ce on CoCeAl‐LDO improved its catalytic performance over CoAl‐LDO (T50% of CoCeAl‐LDO was 15 °C lower than CoAl‐LDO). Our results showed that the good catalytic performance of CoCeAl‐LDO was ascribed to the increased Co2+/Co3+ ratio and the abundance of lattice oxygen (Olatt). Conclusion MnAl‐LDO has good catalytic properties for acetone oxidation, even under humid conditions. The LDO catalysts tested here can be developed into efficient catalysts for acetone oxidation and serve as functional materials for the reduction in acetone or VOC emission. © 2018 Society of Chemical Industry

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Impact of metal doping on the activity of Au/CeO2 catalysts for catalytic abatement of VOCs and CO in waste gases

Cited by 21 publications

References 31 publications

The potential use of HNO 3 -treated clinoptilolite in the preparation of Pt/CeO 2 -Clinoptilolite nanostructured catalyst used in toluene abatement from waste gas stream at low temperature

The potential use of HNO 3 -treated clinoptilolite in the preparation of Pt/CeO 2 -Clinoptilolite nanostructured catalyst used in toluene abatement from waste gas stream at low temperature

Strong synergism between gold and manganese in an Au–Mn/triple-oxide-support (TOS) oxidation catalyst

The effect of cerium incorporation on the catalytic performance of cobalt and manganese containing layer double oxides for acetone oxidation

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