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

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

^*Corresponding author for this work

Chemical and Biological Engineering

Research output: Contribution to journal › Conference article › peer-review

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 35Â°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200Â°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 language	English (US)
Journal	ACS National Meeting Book of Abstracts
State	Published - 2011
Event	241st ACS National Meeting and Exposition - Anaheim, CA, United States Duration: Mar 27 2011 → Mar 31 2011

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Cite this

@article{e53805da987c4b409525d87991d04e5f,

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

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{\^A}°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200{\^A}°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.",

author = "Kung, {Mayfair C.} and Lin, {Sean Y.} and Audrey Salazar and Nirajan Rajkarnikar and Kung, {Harold H.}",

year = "2011",

language = "English (US)",

journal = "ACS National Meeting Book of Abstracts",

issn = "0065-7727",

publisher = "American Chemical Society",

note = "241st ACS National Meeting and Exposition ; Conference date: 27-03-2011 Through 31-03-2011",

}

TY - JOUR

T1 - Infrared spectroscopic investigation of hydrocarbon oxidation over Co and Cu supported on nano-ZSM-5

AU - Kung, Mayfair C.

AU - Lin, Sean Y.

AU - Salazar, Audrey

AU - Rajkarnikar, Nirajan

AU - Kung, Harold H.

PY - 2011

Y1 - 2011

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 35Â°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200Â°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 35Â°C and adsorbed formaldehyde and its polymeric forms were observed immediately. Methane activation required higher temperatures (160-200Â°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 -

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

Abstract

ASJC Scopus subject areas

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