Nanostructured PZT synthesized from metal-polyvinyl alcohol gel: Studies on metal-polymer interaction

2008 ◽  
Vol 110 (5) ◽  
pp. 2693-2697 ◽  
Author(s):  
Subir Roy
2020 ◽  
Vol 60 (12) ◽  
pp. 3036-3045
Author(s):  
Hrushikesh Abhyankar ◽  
D. Patrick Webb ◽  
Geoff D. West ◽  
David A. Hutt

Author(s):  
Kyunglim Hyun ◽  
Younghwan Park ◽  
Songhyun Lee ◽  
Jueun Lee ◽  
Yeonwoo Choi ◽  
...  

2021 ◽  
Author(s):  
Kyunglim Hyun ◽  
Younghwan Park ◽  
Songhyun Lee ◽  
Jueun Lee ◽  
Yeonwoo Choi ◽  
...  

2020 ◽  
Vol 6 (28) ◽  
pp. eabb7369 ◽  
Author(s):  
Songhyun Lee ◽  
Seung-Jae Shin ◽  
Hoyong Baek ◽  
Yeonwoo Choi ◽  
Kyunglim Hyun ◽  
...  

Metal catalysts are generally supported on hard inorganic materials because of their high thermochemical stabilities. Here, we support Pd catalysts on a thermochemically stable but “soft” engineering plastic, polyphenylene sulfide (PPS), for acetylene partial hydrogenation. Near the glass transition temperature (~353 K), the mobile PPS chains cover the entire surface of Pd particles via strong metal-polymer interactions. The Pd-PPS interface enables H2 activation only in the presence of acetylene that has a strong binding affinity to Pd and thus can disturb the Pd-PPS interface. Once acetylene is hydrogenated to weakly binding ethylene, re-adsorption of PPS on the Pd surface repels ethylene before it is further hydrogenated to ethane. The Pd-PPS interaction enables selective partial hydrogenation of acetylene to ethylene even in an ethylene-rich stream and suppresses catalyst deactivation due to coke formation. The results manifest the unique possibility of harnessing dynamic metal-polymer interaction for designing chemoselective and long-lived catalysts.


1988 ◽  
Vol 49 (C5) ◽  
pp. C5-49-C5-59 ◽  
Author(s):  
P. S. HO ◽  
R. HAIGHT ◽  
R. C. WHITE ◽  
B. D. SILVERMAN

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