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Influence of methane concentration on methanotrophic activity of Mollic Gleysol and Haplic Podzol

100%

Wlodarczyk T., Stepniewska Z., Brzezinska M., Pindelska E., Przywara G.

International Agrophysics

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2004

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tom 18

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nr 4

2

Catalytic properties of Ag-SnO2 catalysts applied in low-temperature methane oxidation

84%

Lewandowska A., Kocemba I., Rynkowski J.

Polish Journal of Environmental Studies

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2008

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tom 17

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nr 3

433-437

This paper focuses on the catalytic properties of Ag/SnO₂ for low-temperature methane oxidation. The influences of the metal loading (0.2-20 wt.% Ag), support (Al₂O₃, TiO₂, SiO₂) and methane concentration (0.375-1.5%) in the oxidized mixture were investigated. It was observed that the optimal amount of silver in Ag/SnO₂ was 1 wt.%. Lower or higher amounts cause a loss in catalytic activity. SnO₂ was found to be undoubtedly the best support for the title reaction among all tested oxides. A mechanism of methane oxidation over Ag/SnO₂ was proposed.

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Spatiotemporal monitoring of CO2 and CH4 over Pakistan using Atmospheric Infrared Sounder (AIRS)

67%

Mahmood I., Iqbal M. F., Shahzad M. I., Waqas A., Atique L.

International Letters of Natural Sciences

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2016

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tom 58

Carbon dioxide (CO2), Methane (CH4) are two most potent greenhouse gases and are major source of climate change. Human activities particularly fossil fuels burning have caused considerable increase in atmospheric concentrations of greenhouse gases. CO2 contributes 60% of anthropogenic greenhouse effect whereas CH4 contributes 15%. Ice core records also show that the concentrations of Carbon dioxide and methane have increased substantially. The emission of these gases alters the Earth’s energy budget and are drivers of climate change. In the present study, atmospheric concentration of CO2 and CH4 over Pakistan is measured using Atmospheric Infrared Sounder (AIRS). Time series and time averaged maps are prepared to measure the concentrations of CO2 and CH4. The results show considerable increase in concentration of Carbon dioxide and methane. The substantial increase in these concentrations can affect human health, earth radiative balance and can damage crops.

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Contribution by the methanogenic endosymbionts of anaerobic ciliates to methane production in Dutch freshwater sediments

67%

Van Hoek A. H. A. M., Van Alen T. A., Vogels G. D., Hackstein J. H. P.

Acta Protozoologica

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2006

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tom 45

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nr 3

Ograniczanie wyników

1 Acta Protozoologica

1 International Agrophysics

1 International Letters of Natural Sciences

1 Polish Journal of Environmental Studies

1 Atique L.

1 Brzezinska M.

1 Hackstein J. H. P.

1 Iqbal M. F.

1 Kocemba I.

1 Lewandowska A.

1 Mahmood I.

1 Pindelska E.

1 Przywara G.

1 Rynkowski J.

1 Shahzad M. I.

1 Stepniewska Z.

1 Van Alen T. A.

1 Van Hoek A. H. A. M.

1 Vogels G. D.

1 Waqas A.

1 Wlodarczyk T.

1 2016

1 2008

1 2006

1 2004

Influence of methane concentration on methanotrophic activity of Mollic Gleysol and Haplic Podzol

Catalytic properties of Ag-SnO2 catalysts applied in low-temperature methane oxidation

Spatiotemporal monitoring of CO2 and CH4 over Pakistan using Atmospheric Infrared Sounder (AIRS)

Contribution by the methanogenic endosymbionts of anaerobic ciliates to methane production in Dutch freshwater sediments