Characterization of site-isolated iridium atoms supported on reduced graphene aerogel at an exceptional Ir loading of 23.8 wt% with synchrotron and electron microscopy techniques
| dc.authorid | 0000-0001-9136-6988 | |
| dc.contributor.author | Kurtoğlu-Öztulum, Samira Fatma | |
| dc.contributor.author | Kaan, Yalçın | |
| dc.contributor.author | Yuxin, Zhao | |
| dc.contributor.author | Uğur, Ünal | |
| dc.contributor.author | Alper, Uzun | |
| dc.date.accessioned | 2024-03-21T06:15:42Z | |
| dc.date.available | 2024-03-21T06:15:42Z | |
| dc.date.issued | 2023 | |
| dc.department | TAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümü | en_US |
| dc.description.abstract | Atomically dispersed supported metal catalysts provide substantial advantages when compared to their traditional counterparts. They offer 100% dispersion of expensive noble metals, exhibit intriguing catalytic properties, and provide insights into the relationship between structure and catalytic activity [1]. However, there are several challenges these novel class of catalysts are facing, such as their limited stability in reaction environment and limited metal loadings (typically below 1 wt%). To overcome these issues, we have used a novel and promising support, reduced graphene aerogel (rGA), consisting of numerous bonding sites for Ir, having a significantly high surface area (>700 m2 /g), and great electronic properties. Thanks to these outstanding features of rGA, we achieved an exceptional Ir loading of 23.8 wt%. The presence of individual Ir atoms at such high loading on the surface of rGA was confirmed by combining atomic-resolution images obtained using a Hitachi HF5000 Cs-corrected cold FEG aberrationcorrected scanning transmission electron microscope and X-ray absorption spectroscopy data. These findings highlight rGA's potential as an exceptional support material for expensive noble metal complexes to achieve extraordinary loadings in atomically dispersed supported metal catalysts. | |
| dc.identifier.citation | Kurtoğlu-Öztulum, Samira F., Kaan, Y., Yuxin, Z., Uğur, Ü., Alper, U. (2023). Characterization of site-isolated iridium atoms supported on reduced graphene aerogel at an exceptional Ir loading of 23.8 wt% with synchrotron and electron microscopy techniques. Leverage of IT for Engineering and Science (LITES) Conference. 18-19. | |
| dc.identifier.endpage | 19 | en_US |
| dc.identifier.startpage | 18 | en_US |
| dc.identifier.uri | https://lites2023.tau.edu.tr/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12846/891 | |
| dc.language.iso | en | |
| dc.relation.ispartof | Leverage of IT for Engineering and Science (LITES) Conference | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Characterization of site-isolated iridium atoms supported on reduced graphene aerogel at an exceptional Ir loading of 23.8 wt% with synchrotron and electron microscopy techniques | |
| dc.type | Conference Object |
