Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Miroslaw A. Derewinski"'
Autor:
Yiqing Wu, Wenru Zhao, Sang Hyun Ahn, Yilin Wang, Eric D. Walter, Ying Chen, Miroslaw A. Derewinski, Nancy M. Washton, Kenneth G. Rappé, Yong Wang, Donghai Mei, Suk Bong Hong, Feng Gao
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract Low-temperature standard NH3-SCR over copper-exchanged zeolite catalysts occurs on NH3-solvated Cu-ion active sites in a quasi-homogeneous manner. As key kinetically relevant reaction steps, the reaction intermediate CuII(NH3)4 ion hydrolyze
Externí odkaz:
https://doaj.org/article/d6d87219e0814caca4527f7a5efe4792
Autor:
Konstantin Khivantsev, Miroslaw A. Derewinski, Libor Kovarik, Mark Bowden, Xiaohong Shari Li, Nicholas R. Jaegers, Daria Boglaienko, Xavier I. Pereira-Hernandez, Carolyn Pearce, Yong Wang, Janos Szanyi
Publikováno v:
Catalysts, Vol 14, Iss 1, p 56 (2024)
Replacing alkaline for alkaline-earth metal hydroxide in the synthesis gel during the synthesis of siliceous SSZ-13 zeolite (Si/Al~10) yields SSZ-13 with novel, advantageous properties. Its NH4-form ion-exchanges higher amount of isolated divalent M(
Externí odkaz:
https://doaj.org/article/214f8d462f2d4f5e86ac33a57b8fafb7
Autor:
Konstantin Khivantsev, Nicholas R. Jaegers, Hristiyan A. Aleksandrov, Libor Kovarik, Miroslaw A. Derewinski, Yong Wang, Georgi N. Vayssilov, Janos Szanyi
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
CO oxidation is of importance both for inorganic and living systems. Here the authors demonstrate that CO can be oxidized by nitrate in small-pore SSZ-13 zeolite at a temperature below −100 °C using spectroscopy and density functional theory calcu
Externí odkaz:
https://doaj.org/article/1bc86d0405404f7e9cbbf208f08a3134
Autor:
Konstantin Khivantsev, Nicholas R. Jaegers, Libor Kovarik, Miroslaw A. Derewinski, Ja-Hun Kwak, Janos Szanyi
Publikováno v:
Molecules, Vol 27, Iss 7, p 2352 (2022)
Steamed zeolites exhibit improved catalytic properties for hydrocarbon activation (alkane cracking and dehydrogenation). The nature of this practically important phenomenon has remained a mystery for the last six decades and was suggested to be relat
Externí odkaz:
https://doaj.org/article/6cd03aae705f49a79230b48507e92617
Autor:
Brian J. Riley, Saehwa Chong, Julian Schmid, José Marcial, Emily T. Nienhuis, Mrinal K. Bera, Sungsik Lee, Nathan L. Canfield, Sungmin Kim, Miroslaw A. Derewinski, Radha Kishan Motkuri
Publikováno v:
ACS Applied Materials & Interfaces. 14:18439-18452
This study evaluated zeolite-based sorbents for iodine gas [I
Autor:
Konstantin Khivantsev, Stoyan P. Gramatikov, Nicholas R. Jaegers, Miroslaw A. Derewinski, Georgi N. Vayssilov, Janos Szanyi, Hristiyan A. Aleksandrov
We report the formation of a new Lewis acid Al site in H-FAU zeolite upon 650 ⁰C thermal treatment, unknown for any zeolite. Spectroscopy and DFT calculations reveal this site is a naked Al+3 ion which is charge balanced by a triplet of adjacent fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99870feb529cc6bea18908eac9425ab3
https://doi.org/10.26434/chemrxiv-2022-mgbnq
https://doi.org/10.26434/chemrxiv-2022-mgbnq
Autor:
Konstantin Khivantsev, Miroslaw A. Derewinski, Nicholas R. Jaegers, Daria Boglaienko, Xavier Isidro Pereira Hernandez, Carolyn Pearce, Yong Wang, János Szanyi
Replacing alkaline for alkaline-earth metal hydroxide in the synthesis of siliceous SSZ-13 zeolite (Si/Al~10) yields SSZ-13 with novel, advantageous properties. Its NH4-form ion-exchanges higher amount of isolated divalent M(II) ions than the convent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3adeb955f75265bd1dd4deff0cad38a8
https://doi.org/10.26434/chemrxiv-2022-4hzng-v2
https://doi.org/10.26434/chemrxiv-2022-4hzng-v2
Autor:
Konstantin Khivantsev, Ja-Hun Kwak, Nicholas R. Jaegers, Iskra Z. Koleva, Georgi N. Vayssilov, Miroslaw A. Derewinski, Yong Wang, Hristiyan A. Aleksandrov, Janos Szanyi
Publikováno v:
Chemical science, vol 13, iss 35
Cu/Zeolites efficiently catalyze selective reduction of environmentally harmful nitric oxide with ammonia. Despite over a decade of research, the exact NO reduction steps remain unknown. Herein, using combined spectroscopic, catalytic and DFT approac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3db700bdfdcc962486d79ab5fcbe02af
https://doi.org/10.26434/chemrxiv-2022-mmcbn-v2
https://doi.org/10.26434/chemrxiv-2022-mmcbn-v2
Autor:
János Szanyi, Konstantin Khivantsev, Nicholas Jaegers, Ja Hun Kwak, Libor Kovarik, Miroslaw A. Derewinski
Publikováno v:
Molecules; Volume 27; Issue 7; Pages: 2352
Molecules (Basel, Switzerland), vol 27, iss 7
Molecules (Basel, Switzerland), vol 27, iss 7
Steamed zeolites have improved catalytic properties for hydrocarbon activation (alkane cracking reaction as well as alkane dehydrogenation). The nature of this practically important phenomenon has remained a mystery for the last six decades and was s
Publikováno v:
Petroleum Chemistry. 60:420-436
The work reviewed here attempts to summarize the growing literature on zeolite stability in hot liquid water. This required to first establish the nature, structure and interactions of the active sites in Brønsted and Lewis acidic microporous materi