Zobrazeno 1 - 10
of 319
pro vyhledávání: '"Charles H. F. Peden"'
Autor:
Aiyong Wang, Ying Chen, Eric D. Walter, Nancy M. Washton, Donghai Mei, Tamas Varga, Yilin Wang, János Szanyi, Yong Wang, Charles H. F. Peden, Feng Gao
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Understanding the failure of commercial Cu/SAPO-34 selective catalytic reduction (SCR) catalysts at an atomic level is vital for the synthesis of more robust catalysts. Here the authors unravel the mysterious failure of Cu/SAPO-34 SCR catalysts via a
Externí odkaz:
https://doaj.org/article/6ca278e84a3c44aab369c318b77df26a
Autor:
Ying Chen, Eric D. Walter, János Szanyi, Yilin Wang, Charles H. F. Peden, Yong Wang, Aiyong Wang, Nancy M. Washton, Feng Gao, Tamas Varga
Publikováno v:
Catalysis Today. 360:367-374
A model Cu/SAPO-34 SCR catalyst with all Cu species maintained as isolated Cu(II) ions is synthesized. Following lengthy storage on the shelf under ambient conditions, this catalyst completely and irreversibly deactivates upon any heat treatments abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a5b84a4ca6962f4337ff20055b3f102
https://doi.org/10.1016/j.cattod.2020.01.034
https://doi.org/10.1016/j.cattod.2020.01.034
Autor:
Jamie D. Holladay, Donghai Mei, Charles H. F. Peden, Yilin Wang, Feng Gao, Nancy M. Washton, János Szanyi, Eric D. Walter, Yanran Cui, Yong Wang
Publikováno v:
Journal of Catalysis. 378:363-375
Cu,M/SSZ-13 (M = Na+, K+ and Ca2+) selective catalytic reduction (SCR) catalysts with Si/Al = 6 and M/Cu ratios varying from 0.1 to 1.0 are prepared by solution ion exchange, followed by slurry drying and hydrothermal aging at 800 °C. The catalysts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b4d8585eb72d7c0073dc29fbe1de13c
https://doi.org/10.1016/j.jcat.2019.08.028
https://doi.org/10.1016/j.jcat.2019.08.028
Autor:
Feng Gao, Kezhi Li, Charles H. F. Peden, Yani Zhang, Shuai Liu, Yue Peng, Jianjun Chen, Junhua Li
Publikováno v:
ACS Catalysis. 9:6137-6145
A Cu/SSZ-13 catalyst containing predominately Z2Cu sites is prepared. Using FTIR spectroscopy, two nonsteady-state measurements, (1) continuous NO titration of an NH3 saturated catalyst and (2) intermittent NO on/off cycles during quasi-steady state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3cfd1695346c27da7e7772445d12bef
https://doi.org/10.1021/acscatal.9b00759
https://doi.org/10.1021/acscatal.9b00759
Autor:
Charles H. F. Peden
Publikováno v:
Journal of Catalysis. 373:384-389
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c39e45ae51a9a8b876e7da1b1f65359
https://doi.org/10.1016/j.jcat.2019.04.046
https://doi.org/10.1016/j.jcat.2019.04.046
Publikováno v:
The Journal of Physical Chemistry C. 123:9454-9460
Metastable polymorphs of Al2O3 accommodate a large amount of structural disorder that has proven difficult to quantify. In the case of δ-Al2O3, the nature of crystallographic disorder has recently ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::999eff7eebfe4511ec19c011040713ec
https://doi.org/10.1021/acs.jpcc.8b10135
https://doi.org/10.1021/acs.jpcc.8b10135
Autor:
Yilin Wang, Eric D. Walter, Yong Wang, Aiyong Wang, Ying Chen, Charles H. F. Peden, Feng Gao, Nancy M. Washton, Tamas Varga, Donghai Mei, János Szanyi
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Nature Communications
Nature Communications
Commercial Cu/SAPO-34 selective catalytic reduction (SCR) catalysts have experienced unexpected and quite perplexing failure. Understanding the causes at an atomic level is vital for the synthesis of more robust Cu/SAPO-34 catalysts. Here we show, vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01f4c19624628265834ebbf901db027c
http://link.springer.com/article/10.1038/s41467-019-09021-3
http://link.springer.com/article/10.1038/s41467-019-09021-3
Autor:
Guanzhong Lu, Yilin Wang, Feng Gao, Charles H. F. Peden, Eric D. Walter, Aiyong Wang, Yanglong Guo, Nancy M. Washton
Publikováno v:
Catalysis Today. 320:91-99
Cu, Fe and Cu + Fe ion exchanged Beta and SSZ-13 catalysts were prepared by solution ion exchange using commercial NH 4 /Beta, and NH 4 /SSZ-13 that was prepared in-house. To study hydrothermal aging effects, Beta supported catalysts were aged hydrot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60a3873006341d18098bf300c4b62913
https://doi.org/10.1016/j.cattod.2017.09.061
https://doi.org/10.1016/j.cattod.2017.09.061
Autor:
Charles H. F. Peden, Márton Kollár, Feng Gao, János Szanyi, Hai-Ying Chen, Zhehao Wei, Yilin Wang
Publikováno v:
Catalysis Today. 320:61-71
The catalytic activities of small-pore Cu-CHA and large-pore Cu-BEA catalysts for the selective catalytic reduction of NO with NH3 were measured at a very high flow rate. Cu-CHA clearly exhibited much higher intrinsic SCR activity and lower N2O selec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::051cbd98f69acd86e1cd84ab86d59a64
https://doi.org/10.1016/j.cattod.2017.12.022
https://doi.org/10.1016/j.cattod.2017.12.022
Autor:
Tamas Varga, János Szanyi, Chang H. Kim, Charles H. F. Peden, Donghai Mei, Iljeong Heo, Se Oh
Publikováno v:
Catalysis Letters. 148:1445-1450
Sulphate formation, occurring preferentially at the CuO/CeOx–ZrOx interface, is responsible for the deactivation of low temperature CO oxidation catalysts. XRD, FTIR and isotope exchange experiments, as well as DFT calculations, reveal the poisonin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6c0d76a524c370d2f7a8024a274f91
https://doi.org/10.1007/s10562-018-2343-2
https://doi.org/10.1007/s10562-018-2343-2