Thermal desorption of dimethyl methylphosphonate from MoO3
| Autor: | Lena Trotochaud, Kenan P. Fears, Hendrik Bluhm, Hannes Bleuel, Yi Yu, Scott Holdren, Michael R. Zachariah, Jeffrey C. Owrutsky, Ashley R. Head, Linjie Wang, Line Kyhl, Kit H. Bowen, Osman Karslıoǧlu, Xin Tang, Zachary Hicks |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
diffuse reflectance infrared Fourier transform spectroscopy
Diffuse reflectance infrared fourier transform Thermal desorption spectroscopy Materials Science (miscellaneous) Inorganic chemistry Thermal desorption Analytical chemistry 02 engineering and technology 010402 general chemistry lcsh:Chemical technology 01 natural sciences Catalysis surface science Analytical Chemistry lcsh:Chemistry chemistry.chemical_compound Ambient pressure X-ray photoelectron spectroscopy Adsorption X-ray photoelectron spectroscopy Desorption lcsh:TP1-1185 chemical warfare agent simulant Dimethyl methylphosphonate Sorption 021001 nanoscience & nanotechnology 0104 chemical sciences organophosphonate chemistry lcsh:QD1-999 Mechanics of Materials 0210 nano-technology temperature programmed desorption |
| Zdroj: | Catalysis, Structure & Reactivity, Vol 3, Iss 1-2, Pp 112-118 (2017) Catalysis, Structure and Reactivity, vol 3, iss 1-2 Catalysis Structure & Reactivity, vol 3, iss 1-2 Head, A R, Tang, X, Hicks, Z, Wang, L, Bleuel, H, Holdren, S, Trotochaud, L, Yu, Y, Hansen, L K, Karslioglu, O, Fears, K, Owrutsky, J, Zachriah, M, Bowen, K H & Bluhm, H 2017, ' Thermal desorption of dimethyl methylphosphonate from MoO3 ', Catalysis, Structure & Reactivity, vol. 3, no. 1-2 . https://doi.org/10.1080/2055074X.2017.1278891 |
| ISSN: | 2055-0758 |
| DOI: | 10.1080/2055074X.2017.1278891 |
| Popis: | Organophosphonates are used as chemical warfare agents, pesticides, and corrosion inhibitors. New materials for the sorption, detection, and decomposition of these compounds are urgently needed. To facilitate materials and application innovation, a better understanding of the interactions between organophosphonates and surfaces is required. To this end, we have used diffuse reflectance infrared Fourier transform spectroscopy to investigate the adsorption geometry of dimethyl methylphosphonate (DMMP) on MoO3, a material used in chemical warfare agent filtration devices. We further applied ambient pressure X-ray photoelectron spectroscopy and temperature programmed desorption to study the adsorption and desorption of DMMP. While DMMP adsorbs intact on MoO3, desorption depends on coverage and partial pressure. At low coverages under UHV conditions, the intact adsorption is reversible. Decomposition occurs with higher coverages, as evidenced by PCHx and POx decomposition products on the MoO3 surface. Heating under mTorr partial pressures of DMMP results in product accumulation. |
| Databáze: | OpenAIRE |
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