Novel catalysts for methane activation. Quarterly report number 10, January 1--March 31, 1995 Page: 2 of 14
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
Fullerenes are a recently discovered allotrope of carbon that possess unusual properties,
some of which may be ideal for methane activation. -This project is designed to evaluate these
carbon-based materials for conversion of methane into higher hydrocarbons. The project is
divided into three technical tasks. Task 1 deals with synthesis and characterization of the fullerenes
and fullerene soots, Task 2 with testing of the catalysts, and Task 3 with evaluation of the results
and technical reporting. The results and accomplishments for this quarter are summarized below.
Task 1. Synthesis and Characterization of Fullerenes
* A lithium-doped soot was prepared.
" A palladium promoted soot was doped with potassium.
* A nickel promoted soot was doped with potassium.
Task 2. Testing of Catalysts
" K-doped soots of 6%, 12%, and 24% concentrations were compared to
determine relative selectivities. The K-soots with higher K concentrations (12
and 24 wt%) were found to have higher activities and selectivities to C2-C4
hydrocarbons than either the 6% K-soot or the fullerene soot without potassium
incorporation. The selectivities of all the K-soots were higher than the fullerene
soot at a given conversion level.
. The Li-doped soot was tested for methane activation. The selectivity for C2
hydrocarbons from the methane conversion catalyzed by this soot was found to
be similar to that observed for the K-soot but had a slightly lower selectivity for
" The nickel and palladium promoted K-doped soots were tested. In each case, the
selectivity for higher hydrocarbons was found to be higher than that for fullerene
soot, but was lower than that for the K-soot without the metal.
a The palladium promoted K-doped soot was examined for methane activation in
the presence of co-feeds of either ethane or ethylene and compared to the activity
of the K-doped soot and fullerene soot. The ethylene co-feed was found to
promote methane activation at lower temperatures and give higher selectivities
when catalyzed by the palladium K-soot than observed under similar conditions
with either K-soot or fullerene soot.
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Hirschon, A.S.; Du, Y.; Wu, H.J.; Malhotra, R. & Wilson, R.B. Novel catalysts for methane activation. Quarterly report number 10, January 1--March 31, 1995, report, June 10, 1995; United States. (https://digital.library.unt.edu/ark:/67531/metadc624432/m1/2/: accessed April 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.