Active nitrogen mediated selective ruthenium migration on ceria for high pressure ammonia decomposition
Gunjoo Kim, Gahong Kim, Hyunsik Hwang, Eunseong Yoo, Jae-eon Hwang, Jae Won Lee, Hae Ryeong Lee, Keunsoo Kim, Hyangsoo Jeong, Yongmin Kim, Suk Woo Nam, Sungeun Yang, Andreas T Güntner, Hyunjoo Lee, Keun Hwa Chae, Hyung Chul Ham, Hyuntae Sohn · 2026
Read Active nitrogen mediated selective ruthenium migration on ceria for high pressure ammonia decomposition by Gunjoo Kim, Gahong Kim, Hyunsik Hwang, Eunseong Yoo, Jae-eon Hwang, Jae Won Lee, Hae Ryeong Lee, Keunsoo Kim, Hyangsoo Jeong, Yongmin Kim, Suk Woo Nam, Sungeun Yang, Andreas T Güntner, Hyunjoo Lee, Keun Hwa Chae, Hyung Chul Ham, Hyuntae Sohn (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13408114.txt.
Description
Gunjoo Kim and co-authors show, in 2026, that ammonia itself can rearrange a catalyst into its best form. Splitting ammonia under pressure is a clean hydrogen source, yet keeping ruthenium atoms stably dispersed on a support during the harsh reaction is hard. The team found nitrogen intermediates from the ammonia coax ruthenium atoms to migrate selectively onto ceria domains. The atoms anchor there one by one.
The new ruthenium-ceria interface decomposed ammonia at high pressure with a lowered activation barrier and less hydrogen poisoning, the self-fouling that usually throttles such catalysts. Performance and the atomic dispersion both survived long high-pressure runs, confirming structural staying power. Active-nitrogen-driven migration is proposed as a general strategy for building reaction-proof catalyst surfaces.
Catalog record
| CREATOR | Gunjoo Kim, Gahong Kim, Hyunsik Hwang, Eunseong Yoo, Jae-eon Hwang, Jae Won Lee, Hae Ryeong Lee, Keunsoo Kim, Hyangsoo Jeong, Yongmin Kim, Suk Woo Nam, Sungeun Yang, Andreas T Güntner, Hyunjoo Lee, Keun Hwa Chae, Hyung Chul Ham, Hyuntae Sohn |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 55591 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |