Zobrazeno 1 - 10
of 171
pro vyhledávání: '"DONALD M. CAMAIONI"'
Active species in chloroaluminate ionic liquids catalyzing low-temperature polyolefin deconstruction
Autor:
Wei Zhang, Rachit Khare, Sungmin Kim, Lillian Hale, Wenda Hu, Chunlin Yuan, Yaoci Sheng, Peiran Zhang, Lennart Wahl, Jiande Mai, Boda Yang, Oliver Y. Gutiérrez, Debmalya Ray, John Fulton, Donald M. Camaioni, Jianzhi Hu, Huamin Wang, Mal-Soon Lee, Johannes A. Lercher
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Chloroaluminate ionic liquids selectively transform (waste) polyolefins into gasoline-range alkanes through tandem cracking-alkylation at temperatures below 100 °C. Further improvement of this process necessitates a deep understanding of th
Externí odkaz:
https://doaj.org/article/f4812ad0b22b4c6aaddf8d7bfed141dd
Autor:
Sungmin Kim, Mal-Soon Lee, Donald M. Camaioni, Oliver Y. Gutiérrez, Vassiliki-Alexandra Glezakou, Niranjan Govind, Thomas Huthwelker, Ruixue Zhao, Roger Rousseau, John L. Fulton, Johannes A. Lercher
Publikováno v:
JACS Au, Vol 3, Iss 9, Pp 2487-2497 (2023)
Externí odkaz:
https://doaj.org/article/7eece2e3615b4debbfda98324ac153a4
Autor:
Yifeng Zhu, Jian Zheng, Jingyun Ye, Yanran Cui, Katherine Koh, Libor Kovarik, Donald M. Camaioni, John L. Fulton, Donald G. Truhlar, Matthew Neurock, Christopher J. Cramer, Oliver Y. Gutiérrez, Johannes A. Lercher
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Molecular interactions with both oxides and metals are essential for heterogenous catalysis, leading to remarkable impacts on activity. Here the authors show that a direct link between Cu and ZrO2 in a metal organic framework is required to hydrogena
Externí odkaz:
https://doaj.org/article/b9cc9b6c73f347d99c9579e5b1e6e42f
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
The rates of acid-catalysed reactions vary in constrained environments. Here the authors show that molecularly sized pores greatly promote aqueous phase alcohol dehydration by enhancing the association between substrate and hydronium ions, and even b
Externí odkaz:
https://doaj.org/article/ee88384707244e91aced7e3a4cf5209f
Autor:
Yuanshuai Liu, Aleksei Vjunov, Hui Shi, Sebastian Eckstein, Donald M. Camaioni, Donghai Mei, Eszter Baráth, Johannes A. Lercher
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Alcohol dehydration can be challenging in aqueous phase. Here the authors show that hydronium ions confined with zeolite pores catalyse alcohol dehydration at a significantly increased rate relative to aqueous phase hydronium ions, driven by an incre
Externí odkaz:
https://doaj.org/article/1d416516117842aeba37a0e066579594
Autor:
Wei Zhang, Sungmin Kim, Lennart Wahl, Rachit Khare, Lillian Hale, Jianzhi Hu, Donald M. Camaioni, Oliver Y. Gutiérrez, Yue Liu, Johannes A. Lercher
Publikováno v:
Science. 379:807-811
Selective upcycling of polyolefin waste has been hampered by the relatively high temperatures that are required to cleave the carbon-carbon (C–C) bonds at reasonably high rates. We present a distinctive approach that uses a highly ionic reaction en
Autor:
Laura Löbbert, Saumil Chheda, Jian Zheng, Navneet Khetrapal, Julian Schmid, Ruixue Zhao, Carlo A. Gaggioli, Donald M. Camaioni, Ricardo Bermejo-Deval, Oliver Y. Gutiérrez, Yue Liu, J. Ilja Siepmann, Matthew Neurock, Laura Gagliardi, Johannes A. Lercher
Publikováno v:
Journal of the American Chemical Society. 145:1407-1422
Grafting metal cations to missing linker defect sites in zirconium-based metal-organic frameworks, such as UiO-66, produces a uniquely well-defined and homotopic catalytically active site. We present here the synthesis and characterization of a group
Autor:
Laura C. Meyer, Udishnu Sanyal, Kelsey A. Stoerzinger, Katherine Koh, John L. Fulton, Donald M. Camaioni, Oliver Y. Gutiérrez, Johannes A. Lercher
Publikováno v:
ACS Catalysis. 12:11910-11917
Autor:
Vineet Maliekkal, Hui Shi, Gary L. Haller, Matthew Neurock, Guoju Yang, Johannes A. Lercher, Yue Liu, Donald M. Camaioni, Xi Chen, Sebastian Eckstein, Eszter Baráth
Publikováno v:
Journal of Catalysis. 404:579-593
Metal-containing zeolites exhibit remarkable catalytic activity for hydrogenation owing to the synergistic interactions between acid and metal sites. In the aqueous phase, the presence of water and, in particular, hydronium ions, complicate the adsor
Autor:
Feng Chen, Donald M. Camaioni, Meng Wang, Johannes A. Lercher, Hui Shi, Oliver Y. Gutiérrez, Yuanshuai Liu, Manish Shetty
Publikováno v:
ACS Catalysis. 11:2879-2888
The rate of acid–base-catalyzed dehydration of alcohols strongly depends on the solvent and the environment of the acid sites. We find that Bronsted acidic sites in large-pore zeolites, but not in ...