TY - JOUR
T1 - Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5
AU - Kung, Mayfair
AU - Lin, Sean Y.
AU - Salazar, Audrey
AU - Rajkarnikar, Nirajan
AU - Kung, Harold H
PY - 2011/8/25
Y1 - 2011/8/25
N2 - Co-ZSM-51 has been reported to be active for methane activation at low temperatures. Conventional ZSM-5 are often micron size crystallites or aggregates and intrapore diffusion could be problematic when a reactive intermediate is the desired product. Thus, nano ZSM-5 was synthesized as the support for Co and the formation of adsorbed species from methane was monitored with infrared spectroscopy. As a test, methanol was activated at 35°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200°C) and a number of CH stretching bands were observed to develop around 3000 cm-1 region. Between 1000 and 2000 cm-1 region, the most prominent band detected could be assigned to adsorbed formate. Rates of formation of the surface species depended on the manner of Co introduction onto the ZSM-5 support.
AB - Co-ZSM-51 has been reported to be active for methane activation at low temperatures. Conventional ZSM-5 are often micron size crystallites or aggregates and intrapore diffusion could be problematic when a reactive intermediate is the desired product. Thus, nano ZSM-5 was synthesized as the support for Co and the formation of adsorbed species from methane was monitored with infrared spectroscopy. As a test, methanol was activated at 35°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200°C) and a number of CH stretching bands were observed to develop around 3000 cm-1 region. Between 1000 and 2000 cm-1 region, the most prominent band detected could be assigned to adsorbed formate. Rates of formation of the surface species depended on the manner of Co introduction onto the ZSM-5 support.
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M3 - Conference article
AN - SCOPUS:80051895864
SN - 0065-7727
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
T2 - 241st ACS National Meeting and Exposition
Y2 - 27 March 2011 through 31 March 2011
ER -