Effect of Mn substitution on the promoted formaldehyde oxidation over spinel ferrite: Catalyst characterization, performance and reaction mechanism

Liu, Peng; He, Hongping; Wei, Gaoling; Liang, Xiaoliang; Qi, Feihong; Tan, Fuding; Tan, Wei

doi:10.1016/j.apcatb.2015.09.055

Cited by 161 publications

(54 citation statements)

References 66 publications

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“…Co-substituted magnetite samples were synthesized using magnetite (Fe 3 O 4 ) and cobalt chloride (CoCl 2 ) by a precipitationoxidation routine [4,5]. The resultant samples were labeled S 0.25 , S 0.50 , S 0.75 , and S 1.0 , corresponding to the initial Co doping amounts (x) in Fe 3-x Co x O 4 of 0.25, 0.50, 0.75, and 1.0, respectively.…”

Section: Preparation Of Magnetite Samplesmentioning

confidence: 99%

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Quantitative analysis of Fe and Co in Co-substituted magnetite using XPS: The application of non-linear least squares fitting (NLLSF)

Wei

et al. 2016

Applied Surface Science

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134

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Section: Preparation Of Magnetite Samplesmentioning

confidence: 99%

“…substituted magnetite because of its surface catalytic properties [1][2][3][4][5]. For example, the catalytic activities of magnetite in the heterogeneous Fenton reaction are greatly improved by the introduction of Mn [6], V [7], and Co [3].…”

Section: Introductionmentioning

confidence: 99%

Quantitative analysis of Fe and Co in Co-substituted magnetite using XPS: The application of non-linear least squares fitting (NLLSF)

Wei

et al. 2016

Applied Surface Science

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134

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“…Various technological processes (such as adsorption, thermal processing and catalytic oxidation) have been developed to reduce the levels of acetone and other VOCs in the atmosphere . Catalytic oxidation is generally regarded as an effective method for VOCs removal due to the high efficiency, low operating temperature, low energy consumption and the low abundance of harmful by‐products . Catalytic oxidation of VOCs typically proceeds via the Mars‐Van Krevelen (MVK) process, in which VOC molecules are adsorbed onto the surface of the catalyst, it is then oxidized and desorbed.…”

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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“…At present, the removal methods of formaldehyde in the air mainly include adsorption, photocatalytic oxidation, thermal catalytic oxidation and so on (Spivey, 1987;Atkinson and Arey, 2003a;Zhou et al, 2011;Ewlad-Ahmed et al, 2012;Yu et al, 2015;Bai et al, 2016;Hosseini et al, 2016;Liang et al, 2016;Liu et al, 2016;Yu et al, 2016). High specific surface materials, such as activated carbon and molecular sieve are common used in adsorption technology to remove formaldehyde (Kosuge et al, 2007;Ma et al, 2011;Chen et al, 2014), but the difficulty of regeneration on absorbent have restricted the applicant in high concentration of HCHO.…”

Section: Introductionmentioning

confidence: 99%

Effect of MnO2 Crystalline Structure on the Catalytic Oxidation of Formaldehyde

Lin

Chen

et al. 2017

Aerosol Air Qual. Res.

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Manganese oxides prove to be a promising catalyst for formaldehyde (HCHO) elimination in catalytic oxidation. In this study, MnO 2 with different crystalline structure (α-MnO 2 , β-MnO 2 , γ-MnO 2 , and δ-MnO 2 ) were synthesized by hydrothermal method to investigate their catalytic performances towards the abatement of formaldehyde. The prepared catalysts were characterized and analyzed by the X-ray diffraction (XRD), hydrogen-temperature programmed reduction (H 2 -TPR), BET specific surface area, X-ray photoelectron spectroscopy (XPS), and ammonia-temperature programmed desorption (NH 3 -TPD). In addition, the apparent activation energy was also calculated by using Arrhenius plots. Among the above four prepared catalysts, the γ-MnO 2 has the best destruction and removal efficiency (DRE), which was approaching to 100% for HCHO at 155°C. The catalytic activity of γ-MnO 2 is associated with abundant mesopores, higher reducibility of surface oxygen species, and more oxygen vacancies as compared to other types of crystalline MnO 2 .

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Effect of Mn substitution on the promoted formaldehyde oxidation over spinel ferrite: Catalyst characterization, performance and reaction mechanism

Cited by 161 publications

References 66 publications

Quantitative analysis of Fe and Co in Co-substituted magnetite using XPS: The application of non-linear least squares fitting (NLLSF)

Quantitative analysis of Fe and Co in Co-substituted magnetite using XPS: The application of non-linear least squares fitting (NLLSF)

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

Effect of MnO2 Crystalline Structure on the Catalytic Oxidation of Formaldehyde

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