Hydrotalcite derived (Cu, Mn)–Mg–Al metal oxide systems doped with palladium as catalysts for low-temperature methanol incineration

Jabłońska, Magdalena; Chmielarz, Lucjan; Węgrzyn, Agnieszka; Góra‐Marek, Kinga; Piwowarska, Zofia; Witkowski, Stefan; Bidzińska, Ewa; Kuśtrowski, Piotr; Wach, Anna; Majda, Dorota

doi:10.1016/j.clay.2015.05.027

Cited by 40 publications

(22 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Over the presence of the latter catalyst, methanol was completely oxidised to CO 2 from 325°C. This sample belongs to the group of very effective catalysts for methanol incineration (excluding noble metalbased catalysts) reported in the literature [27,38,39]. Such significant differences in the catalytic performance of the studied samples can be explained by various phase composition and redox properties of cobalt species present in these phases.…”

Section: Resultsmentioning

confidence: 99%

Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration

Basąg

Kovanda

Piwowarska

et al. 2017

J Therm Anal Calorim

Self Cite

View full text Add to dashboard Cite

The Co-Mg-Al mixed metal oxides were prepared by calcination of co-precipitated hydrotalcite-like precursors at various temperatures (600-800°C), characterised with respect to chemical (AAS) and phase (XRD) composition, textural parameters (BET), form and aggregation of cobalt species (UV-vis-DRS) and their redox properties (H 2 -TPR, cyclic voltammetry). Moreover, the process of thermal decomposition of hydrotalcite-like materials to mixed metal oxide systems was studied by thermogravimetric method combined with the analysis of gaseous decomposition products by mass spectrometry. Calcined hydrotalcite-like materials were tested as catalysts for methanol incineration. Catalytic performance of the oxides depended on cobalt content, Mg/Al ratio and calcination temperature. The catalysts with lower cobalt content, higher Mg/Al ratio and calcined at lower temperatures (600 or 700°C) were less effective in the process of methanol incineration. In a series of the studied catalysts, the best results, with respect to high catalytic activity and selectivity to CO 2 , were obtained for the mixed oxide with Co:Mg:Al molar ratio of 10:57:33 calcined at 800°C. High activity of this catalyst was likely connected with the presence of a Co-Mg-Al spinel-type phases, containing easy reducible Co 3? cations, formed during high-temperature treatment of the hydrotalcite-like precursor.

show abstract

Section: Resultsmentioning

confidence: 99%

Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration

Basąg

Kovanda

Piwowarska

et al. 2017

J Therm Anal Calorim

Self Cite

View full text Add to dashboard Cite

show abstract

“…Studies of metal oxides as SCR catalysts have suggested that carrier-free metal oxides still offered good denitrification performance, due to the interactions among the spin, charge, and lattice. Examples of these catalysts include (Fe) MnTi [14], (Cu, Mn)-Mg-Al [15], and Cu 2 Mn 0.5 Al 0.5 O x [10]. Many reports have described the fine preparation processes to control the morphology, structure, and even the crystal configuration of the catalysts.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Oxygen Vacancies in a Two-Dimensional MnAl-Layered Double Oxide Prepared via Flash Nanoprecipitation Offers High Selective Catalytic Reduction of NOx with NH3

Zhao

Wang

et al. 2018

Nanomaterials

View full text Add to dashboard Cite

A two-dimensional MnAl-layered double oxide (LDO) was obtained by flash nanoprecipitation method (FNP) and used for the selective catalytic reduction of NOx with NH3. The MnAl-LDO (FNP) catalyst formed a particle size of 114.9 nm. Further characterization exhibited rich oxygen vacancies and strong redox property to promote the catalytic activity at low temperature. The MnAl-LDO (FNP) catalyst performed excellent NO conversion above 80% at the temperature range of 100–400 °C, and N2 selectivity above 90% below 200 °C, with a gas hourly space velocity (GHSV) of 60,000 h−1, and a NO concentration of 500 ppm. The maximum NO conversion is 100% at 200 °C; when the temperature in 150–250 °C, the NO conversion can also reach 95%. The remarkable low-temperature catalytic performance of the MnAl-LDO (FNP) catalyst presented potential applications for controlling NO emissions on the account of the presentation of oxygen vacancies.

show abstract

“…The catalysts of VOCs combustion can be divided into two main groups: (i) noble metal catalysts and (ii) transition metal oxides (e.g. [2,3]). The most commonly used carrier for the active phases is c-Al 2 O 3 (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Besides silver-based catalytic systems, a lot of studies report successful application of the Cu-containing catalysts for VOCs elimination (including methanol) (e.g. [2,13]).…”

Section: Introductionmentioning

confidence: 99%

Silver–Alumina Catalysts for Low-Temperature Methanol Incineration

2016

Self Cite

View full text Add to dashboard Cite

The use of methanol as an alternative fuel for gasoline or diesel engines increases the unregulated CH 3 OH emission. c-Al 2 O 3 modified with Cu, Mn, Ce, K, Ag, Cu-Mn, Cu-Ce, Cu-Ag or Cu-K (0.5, 1.0, 0.5:0.5, 1.0:1.0 wt% of metal) catalysed the process of methanol incineration. The highest activity reached samples containing 1.0 wt% of silver. Dispersed Ag ? species on Al 2 O 3 served as active species for selective oxidation of CH 3 OH to CO 2 over both Ag/Al 2 O 3 and Cu-Ag/Al 2 O 3. Additionally, the XPS and EPR results revealed the AgO interface between the Ag 2 O and CuO in the Cu-Ag system.

show abstract

Hydrotalcite derived (Cu, Mn)–Mg–Al metal oxide systems doped with palladium as catalysts for low-temperature methanol incineration

Cited by 40 publications

References 48 publications

Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration

Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration

Enhanced Oxygen Vacancies in a Two-Dimensional MnAl-Layered Double Oxide Prepared via Flash Nanoprecipitation Offers High Selective Catalytic Reduction of NOx with NH3

Silver–Alumina Catalysts for Low-Temperature Methanol Incineration

Contact Info

Product

Resources

About