Skip to main content Accessibility help
×
Home
Hostname: page-component-59b7f5684b-vh8gq Total loading time: 0.313 Render date: 2022-10-02T01:45:23.486Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "displayNetworkTab": true, "displayNetworkMapGraph": false, "useSa": true } hasContentIssue true

Polyoxometalate Clusters Supported on Functionalized Graphene Sheets as Nanohybrids for the Catalytic Combustion of Liquid Fuels

Published online by Cambridge University Press:  22 August 2012

Jean-Philippe Tessonnier
Affiliation:
Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, U.S.A.
Francis M. Haas
Affiliation:
Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08540, U.S.A.
Daniel M. Dabbs
Affiliation:
Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08540, U.S.A.
Frederick L. Dryer
Affiliation:
Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08540, U.S.A.
Richard A. Yetter
Affiliation:
Department of Mechanical and Nuclear Engineering, Pennsylvania State University, University Park, PA 16802, U.S.A.
Mark A. Barteau
Affiliation:
Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, U.S.A.
Get access

Abstract

Catalyzing the combustion of liquid fuels offers interesting prospects for further improvement of the fuel economy and the performance of engines, in particular for jets and advanced propulsion systems. Polyoxometalates are well-known oxidation catalysts which are expected to also catalyze combustion reactions. However, their polarity makes their dispersion in fuels particularly challenging. Herein, functionalized graphene sheets were used as a support due to their high surface area as well as their compatibility with the target reaction. In order to further improve the dispersion of the catalyst in fuels, alkyl chains were grafted to the sheets’ surface. An innovative grafting technique was developed to attach alkyls at a variety of oxygen-containing functionalities already present on reduced graphene oxide, such as hydroxyl and epoxy groups. A phase transfer to the organic phase was observed when dispersing the dry powder in water:toluene mixtures. In addition, the dry alkyl chain-modified graphene sheets readily dispersed in common organic solvents without the assistance of sonication. Polyoxometalates (H3PMo12O40 and H4PMo11VO40) were dispersed on the modified sheets as discrete clusters even at a relatively high loading (20 wt.%). The catalytic activity of these nanostructured materials was demonstrated for the combustion of methylcylcohexane, tested here as a model fuel.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Suppes, G. J., Rui, Y., Rome, A. C., and Chen, Z., Ind. Eng. Chem. Res. 36, 4397 (1997).CrossRef
Ghosh, P., Energy Fuels 22, 2073 (2008).
Wickham, D. T., Cook, R., De Voss, S., Engel, J. R., and Nabity, J., J. Russ. Laser Res. 27, 552 (2006).CrossRef
Sabourin, J. L., Dabbs, D. M., Yetter, R. A., Dryer, F. L., and Aksay, I. A., ACS Nano 3, 3945 (2009).CrossRef
Tessonnier, J.-P. and Barteau, M. A., Langmuir, 28, 6691 (2012).CrossRef

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Polyoxometalate Clusters Supported on Functionalized Graphene Sheets as Nanohybrids for the Catalytic Combustion of Liquid Fuels
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

Polyoxometalate Clusters Supported on Functionalized Graphene Sheets as Nanohybrids for the Catalytic Combustion of Liquid Fuels
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Polyoxometalate Clusters Supported on Functionalized Graphene Sheets as Nanohybrids for the Catalytic Combustion of Liquid Fuels
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *