Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5

Mayfair C. Kung, Sean Y. Lin, Audrey Salazar, Nirajan Rajkarnikar, Harold H Kung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2011
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

Other

Other241st ACS National Meeting and Exposition
CountryUnited States
CityAnaheim, CA
Period3/27/113/31/11

Fingerprint

Methane
Hydrocarbons
formic acid
Infrared radiation
Oxidation
Chemical activation
Crystallites
Formaldehyde
Stretching
Methanol
Infrared spectroscopy
Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Kung, M. C., Lin, S. Y., Salazar, A., Rajkarnikar, N., & Kung, H. H. (2011). Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5. In ACS National Meeting Book of Abstracts

Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5. / Kung, Mayfair C.; Lin, Sean Y.; Salazar, Audrey; Rajkarnikar, Nirajan; Kung, Harold H.

ACS National Meeting Book of Abstracts. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kung, MC, Lin, SY, Salazar, A, Rajkarnikar, N & Kung, HH 2011, Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5. in ACS National Meeting Book of Abstracts. 241st ACS National Meeting and Exposition, Anaheim, CA, United States, 3/27/11.
Kung MC, Lin SY, Salazar A, Rajkarnikar N, Kung HH. Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5. In ACS National Meeting Book of Abstracts. 2011
Kung, Mayfair C. ; Lin, Sean Y. ; Salazar, Audrey ; Rajkarnikar, Nirajan ; Kung, Harold H. / Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5. ACS National Meeting Book of Abstracts. 2011.
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