Novel Characterization Tools for Catalysis of Energy-Transition Related Reactions

A special issue of Physchem (ISSN 2673-7167).

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 3573

Special Issue Editor

Technion – Israel Institute of Technology, Haifa 3200003, Israel
Interests: development of novel characterization tools for catalysis of energy-transition related reactions

Special Issue Information

Dear Colleagues,

Society is facing a cohort of energy-transition-related challenges—for example, a shift in the gravity of the world market, increasing urbanization of developing countries, the nanoplastics crisis, electrification, and man-made climate change. These challenges will inevitably change the product slate of the chemical industry and, as such, the requirements of catalysis, which are involved in approximately 90% of all chemical reactions. Breakthrough technologies are needed to shape a new age of not only our energy and materials supplies but also a new age of doing research. Characterization tools with increasingly improved spatial and/or time resolution, the handling and analysis of immense amounts of data, intelligent experimental design, and laboratory automatization and characterization are examples of characterization tools that will aid the design and synthesis of the novel materials and catalysts that are necessary to overcome the variety of challenges that society faces.

Dr. Charlotte Vogt
Guest Editor

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Research

13 pages, 1475 KiB  
Article
Identification of Adsorbed Species and Surface Chemical State on Ag(111) in the Presence of Ethylene and Oxygen Studied with Infrared and X-ray Spectroscopies
by Adva Ben Yaacov, Roey Ben David, David C. Grinter, Georg Held and Baran Eren
Physchem 2021, 1(3), 259-271; https://0-doi-org.brum.beds.ac.uk/10.3390/physchem1030020 - 12 Nov 2021
Cited by 1 | Viewed by 2868
Abstract
Using a combination of two surface-sensitive spectroscopy techniques, the chemical state of the Ag(111) surface and the nature of the adsorbed species in the presence of ethylene and oxygen gases are identified. In the 10 mbar pressure range and 25–200 °C studied here, [...] Read more.
Using a combination of two surface-sensitive spectroscopy techniques, the chemical state of the Ag(111) surface and the nature of the adsorbed species in the presence of ethylene and oxygen gases are identified. In the 10 mbar pressure range and 25–200 °C studied here, Ag(111) remains largely metallic even in O2-rich conditions. The only adsorbed molecular species with a low but discernible coverage is surface carbonate, which forms due to further oxidation of produced CO2, in a similar manner to its formation in ambient air on Ag surfaces. Its formation is also pressure-dependent, for instance, it is not observed when the total pressure is in the 1 mbar pressure range. Production of carbonate, along with carbon dioxide and water vapor as the main gas-phase products, suggests that an unpromoted Ag(111) surface catalyzes mainly the undesired full oxidation reaction. Full article
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