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• W2890948853 abstract "Automotive catalysts are continuously exposed to different poisons and to high temperature, which result in hydrothermal aging. Phosphorus is one of the poisons that the catalyst could be exposed to and it originates from the lubricant oil. In this work, we study the influence of phosphorus poisoning on the catalytic performance and the deactivation mechanism in the hydrothermal aging of Cu-SSZ-13 catalysts. Phosphorus poisoning was performed by impregnating the Cu-SSZ-13 catalysts with (NH4)2HPO4 solution using the incipient wetness impregnation method, which allowed us to precisely control the amount of phosphorus poison on the catalyst. XPS results show that phosphorus oxide (P2O5), metaphosphate (PO3–) and phosphate (PO43–) are formed on the surface of phosphorus-poisoned catalysts, and metaphosphate is the main compound among those species. Phosphorus tends to interact with copper sites and strongly impacts the electronic and reduction property of Cu, as disclosed using EDX mapping, UV–vis DRS and H2-TPR. Results of catalytic activities show that phosphorus poisoning is more severe on ammonia and NO oxidation reactions than on standard ammonia-SCR. This is possibly due to the formation of copper phosphates in the large cages, as revealed using H2-TPR, which reduces the oxidation capacity. Moreover, results of XRD and 27Al and 31P solid-state NMR reveal that phosphorus not only interacts with copper by forming a POCu linkage but also partially inserts into the zeolite framework by forming a localized AlPO4 phase. Both non-poisoned and P-poisoned catalysts lose their active sites and chabazite structures due to dealumination after successively aging in hydrothermal conditions (8 vol.% O2, 5 vol.% H2O in Ar) at different temperatures (800, 850, and 900 °C), which results in a large decrease in SCR performance. Specifically, the P-poisoned catalysts degrade faster than the non-poisoned catalysts. Results demonstrate that phosphorus induces the extensive formation of AlPO4 that accelerates the dealumination during hydrothermal aging. This work provides new insight into understanding the deactivation mechanism in Cu-SSZ-13 from the perspectives of phosphorus-poisoning and hydrothermal aging, and it clearly shows that it is crucial to examine poisoning and hydrothermal aging simultaneously." @default.
• W2890948853 created "2018-09-27" @default.
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• W2890948853 date "2019-02-01" @default.
• W2890948853 modified "2023-10-14" @default.
• W2890948853 title "Insights into hydrothermal aging of phosphorus-poisoned Cu-SSZ-13 for NH3-SCR" @default.
• W2890948853 cites W1735249590 @default.
• W2890948853 cites W1810204928 @default.
• W2890948853 cites W1832105718 @default.
• W2890948853 cites W1963845464 @default.
• W2890948853 cites W1968703286 @default.
• W2890948853 cites W1980517927 @default.
• W2890948853 cites W1983476989 @default.
• W2890948853 cites W1987871967 @default.
• W2890948853 cites W1991509956 @default.
• W2890948853 cites W1991578205 @default.
• W2890948853 cites W1993528377 @default.
• W2890948853 cites W1997015669 @default.
• W2890948853 cites W2002747565 @default.
• W2890948853 cites W2010067703 @default.
• W2890948853 cites W2010869192 @default.
• W2890948853 cites W2012107562 @default.
• W2890948853 cites W2015048425 @default.
• W2890948853 cites W2016582719 @default.
• W2890948853 cites W2018177835 @default.
• W2890948853 cites W2018781793 @default.
• W2890948853 cites W2028371723 @default.
• W2890948853 cites W2038287333 @default.
• W2890948853 cites W2042183206 @default.
• W2890948853 cites W2043339391 @default.
• W2890948853 cites W2049018263 @default.
• W2890948853 cites W2049969981 @default.
• W2890948853 cites W2050449453 @default.
• W2890948853 cites W2054079190 @default.
• W2890948853 cites W2054120776 @default.
• W2890948853 cites W2062060710 @default.
• W2890948853 cites W2068370865 @default.
• W2890948853 cites W2071040769 @default.
• W2890948853 cites W2073360838 @default.
• W2890948853 cites W2084076310 @default.
• W2890948853 cites W2093136957 @default.
• W2890948853 cites W2094464958 @default.
• W2890948853 cites W2100785177 @default.
• W2890948853 cites W2111320013 @default.
• W2890948853 cites W2119619557 @default.
• W2890948853 cites W2119887471 @default.
• W2890948853 cites W2135157414 @default.
• W2890948853 cites W2138636146 @default.
• W2890948853 cites W2140793158 @default.
• W2890948853 cites W2145780217 @default.
• W2890948853 cites W2151567219 @default.
• W2890948853 cites W2154975319 @default.
• W2890948853 cites W2164337680 @default.
• W2890948853 cites W2191951234 @default.
• W2890948853 cites W2193997038 @default.
• W2890948853 cites W2215973946 @default.
• W2890948853 cites W2267483723 @default.
• W2890948853 cites W2301267110 @default.
• W2890948853 cites W2302427730 @default.
• W2890948853 cites W2337591994 @default.
• W2890948853 cites W2346698958 @default.
• W2890948853 cites W2346886994 @default.
• W2890948853 cites W2421350171 @default.
• W2890948853 cites W2469826671 @default.
• W2890948853 cites W2511269074 @default.
• W2890948853 cites W2557499136 @default.
• W2890948853 cites W2570624484 @default.
• W2890948853 cites W2577907626 @default.
• W2890948853 cites W2599829080 @default.
• W2890948853 cites W2609538777 @default.
• W2890948853 cites W2621944834 @default.
• W2890948853 cites W2734974004 @default.
• W2890948853 cites W2735146072 @default.
• W2890948853 cites W2748240755 @default.
• W2890948853 cites W2757827228 @default.
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• W2890948853 doi "https://doi.org/10.1016/j.apcatb.2018.08.082" @default.
• W2890948853 hasPublicationYear "2019" @default.
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