Systematic control of surface and catalytic chemistry is critical for many reactions such as selective hydrogenation, dehydrogenation, reforming, and deoxygenation to produce important chemical building blocks in industry. Due to the limited tunability of surface chemistry over monometallic catalysts, noble metal-transition metal (TM) alloys, and TM-TM alloys, these catalysts often suffer from selectivity and stability issues in many critical reactions. On the other hand, intermetallic compounds (IMCs) comprised of atomically ordered mixtures of TMs and p-elements have shown improved catalytic performance in many critical reactions because of unique surface chemistry that is markedly different from TMs and TM+TM alloys. A vast number of element combinations and bulk stoichiometries of IMCs are available, yet the trends in their surface chemistry as a function of constituent element choice is still not well-established. This project focuses on understanding these trends and connecting surface chemistry with IMC electronic structure. In general surface reactivity studies, a wide range of reactivity was encountered for CH4, H2O, O2, and H2 dissociative adsorption, and C2H4 and CO molecular adsorption. These trends highlight the systematic change in surface chemistry towards C, H, and O in atomic and molecular fragment forms. A general overview of our current understanding of these trends will be presented along with highlights from studies that focused upon specific reactions like the semi-hydrogenation of acetylene, direct dehydrogenation of small alkanes to olefins, and the wet reforming of propane. These studies illustrate the range of surface chemistry presented by IMCs as well as our ability to synthesize well-defined IMCs as oxide-supported nanoparticles such that computational surface science predictions may be realized in non-model catalysts.

General overview of trends in the catalytic surface chemistry of late transition metal intermetallic compounds

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.