Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Evalyn Mae C. Alayon"'
Publikováno v:
CHIMIA, Vol 66, Iss 9 (2012)
The conversion of methane to value-added liquid chemicals is a promising answer to the imminent demand for fuels and chemical synthesis materials in the advent of a dwindling petroleum supply. Current technology requires high energy input for the syn
Externí odkaz:
https://doaj.org/article/4edabfa3a9a54715882f64fc4a063e2f
Autor:
Evalyn Mae C. Alayon, Frank Krumeich, Selmi Erim Bozbag, Patrick Tomkins, Min Bum Park, Marco Ranocchiari, Ali Mansouri, Jeroen A. van Bokhoven
Publikováno v:
Angewandte Chemie International Edition. 55:5467-5471
Direct partial oxidation of methane into methanol is a cornerstone of catalysis. The stepped conversion of methane into methanol currently involves activation at high temperature and reaction with methane at decreased temperature, which limits applic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ae19a3d14b212cb14b2f8424fb52bce
https://doi.org/10.1002/anie.201511065
https://doi.org/10.1002/anie.201511065
Autor:
Jeroen A. van Bokhoven, Jan Pecháček, Marco Ranocchiari, Selmi Erim Bozbag, Maarten Nachtegaal, Evalyn Mae C. Alayon
Publikováno v:
Catalysis Science & Technology. 6:5011-5022
Copper mordenite was used for the conversion of methane to methanol in a cyclic operation. Repeated cycling was possible using catalysts having different loadings prepared via aqueous ion exchange using copper(II) acetate (Cu-MORA) and solid state io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4c57e795e4bf29f9f2d13226ef85c0
https://doi.org/10.1039/c6cy00041j
https://doi.org/10.1039/c6cy00041j
Publikováno v:
ACS Catalysis. 4:16-22
Determining the structure of the active Cu sites, which are associated with the methane conversion intermediate during stepwise, low-temperature, methane-to-methanol conversion, represents an important step for the upgrade of this reaction route to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eb98488fe9d059aaebbc0708546a532
https://doi.org/10.1021/cs400713c
https://doi.org/10.1021/cs400713c
Publikováno v:
Microporous and Mesoporous Materials. 166:131-136
The endeavor to activate methane through low temperature partial oxidation to a partially oxidized species on Cu-exchanged zeolites relies on the understanding of the reaction mechanism. This necessitates knowing the electronic and geometric structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5733a3a2b28f673f8751306e6fa2a9e8
https://doi.org/10.1016/j.micromeso.2012.04.054
https://doi.org/10.1016/j.micromeso.2012.04.054
Autor:
Evalyn Mae C. Alayon, Messaoud Harfouche, Maarten Nachtegaal, J. A. van Bokhoven, Jagdeep Singh
Publikováno v:
Journal of Catalysis. 263:228-238
In situ X-ray absorption spectroscopy identified the role of oxidized platinum species in generating a high-activity state in the oxidation of carbon monoxide over Pt/Al2O3, Pt/TiO2 and Pt/SiO2. Two activity regimes were identified: low-activity at h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46cf659503a9a5bbaf1f10ac164d3751
https://doi.org/10.1016/j.jcat.2009.02.010
https://doi.org/10.1016/j.jcat.2009.02.010
Autor:
Jeroen A. van Bokhoven, Moniek Tromp, Pieter Glatzel, Ronald Frahm, Jagdeep Singh, Maarten Nachtegaal, Olga V. Safonova, Evalyn Mae C. Alayon
Publikováno v:
Angewandte Chemie. 120:9400-9404
High activity is generated by sudden formation of disordered oxidic platinum over a platinum catalyst supported on alumina (see picture). High temperature and low concentration of carbon monoxide are required to generate high activity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06aa1f8188b9c9f5d57e1333e08e4164
https://doi.org/10.1002/ange.200803427
https://doi.org/10.1002/ange.200803427
Autor:
Evalyn Mae C. Alayon, Jeroen A. van Bokhoven, Maarten Nachtegaal, Marco Ranocchiari, Andras Bodi
Publikováno v:
Physical chemistry chemical physics : PCCP. 17(12)
Dicopper species have been identified as the active sites in converting methane to methanol in Cu-zeolites. To understand the formation of these copper cores in mordenite, we used in situ time-resolved X-ray absorption spectroscopy during heat treatm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a90e8b2743b5c4bf9d696ab42d84130d
https://pubmed.ncbi.nlm.nih.gov/25732559
https://pubmed.ncbi.nlm.nih.gov/25732559
Publikováno v:
Chemical communications (Cambridge, England). 48(3)
Methane can be converted to methanol over copper-exchanged mordenite at 200 °C. Methanol could be recovered at the end of the reactor. This multi-step reaction opens the possibility for methane to methanol conversion in a closed catalytic cyclic rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71335b35675bfb513b367ae13a24e2da
https://pubmed.ncbi.nlm.nih.gov/22080329
https://pubmed.ncbi.nlm.nih.gov/22080329
Publikováno v:
Journal of Physics: Conference Series. 190:012159
The structure of supported platinum catalyst (2 wt% Pt/Al2O3) has been determined during the sudden change in the activity of the catalyst, referred as "ignition", during oxidation of carbon monoxide. The catalyst was prepared by incipient wetness im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a8c94685ce1ff8546f98484cf1dea0
https://doi.org/10.1088/1742-6596/190/1/012159
https://doi.org/10.1088/1742-6596/190/1/012159