scholarly journals Local Structure of Catalytically Active Metal Clusters in Polymer Membranes

1997 ◽  
Vol 7 (C2) ◽  
pp. C2-875-C2-877 ◽  
Author(s):  
L. Troger ◽  
S. Nunes ◽  
M. Oehring ◽  
H. Hünnefeld ◽  
D. Fritsch

Author(s):  
L. Tröger ◽  
H. Hünnefeld ◽  
S. Nunes ◽  
M. Oehring ◽  
D. Fritsch


1997 ◽  
Vol 40 (1-4) ◽  
pp. 81-83 ◽  
Author(s):  
L. Tröger ◽  
H. Hünnefeld ◽  
S. Nunes ◽  
M. Oehring ◽  
D. Fritsch


2016 ◽  
Vol 52 (58) ◽  
pp. 9071-9073 ◽  
Author(s):  
Jason D. Ryan ◽  
Kevin J. Gagnon ◽  
Simon J. Teat ◽  
Ruaraidh D. McIntosh

Here we present three structurally diverse clusters stabilised by the same macrocyclic polyphenol; t-butylcalix[8]arene.



2016 ◽  
Vol 113 (32) ◽  
pp. 8921-8926 ◽  
Author(s):  
Roland Bliem ◽  
Jessi E. S. van der Hoeven ◽  
Jan Hulva ◽  
Jiri Pavelec ◽  
Oscar Gamba ◽  
...  

Interactions between catalytically active metal particles and reactant gases depend strongly on the particle size, particularly in the subnanometer regime where the addition of just one atom can induce substantial changes in stability, morphology, and reactivity. Here, time-lapse scanning tunneling microscopy (STM) and density functional theory (DFT)-based calculations are used to study how CO exposure affects the stability of Pt adatoms and subnano clusters at the Fe3O4(001) surface, a model CO oxidation catalyst. The results reveal that CO plays a dual role: first, it induces mobility among otherwise stable Pt adatoms through the formation of Pt carbonyls (Pt1–CO), leading to agglomeration into subnano clusters. Second, the presence of the CO stabilizes the smallest clusters against decay at room temperature, significantly modifying the growth kinetics. At elevated temperatures, CO desorption results in a partial redispersion and recovery of the Pt adatom phase.



2015 ◽  
Vol 27 (13) ◽  
pp. 4808-4813 ◽  
Author(s):  
Ian M. Henderson ◽  
Hope A. Quintana ◽  
Julio A. Martinez ◽  
Walter F. Paxton


Active Metals ◽  
2007 ◽  
pp. 339-379 ◽  
Author(s):  
Helmut Bnnemann ◽  
Werner Brijoux


2019 ◽  
Vol 38 (9) ◽  
pp. 2138-2149 ◽  
Author(s):  
Oliver Halter ◽  
Jonas Spielmann ◽  
Yuki Kanai ◽  
Herbert Plenio




ChemInform ◽  
2011 ◽  
Vol 42 (29) ◽  
pp. no-no
Author(s):  
Andrea Beck ◽  
Anita Horvath ◽  
Antal Sarkany ◽  
Laszlo Guczi


1981 ◽  
Vol 11 (2-3) ◽  
pp. 397-407 ◽  
Author(s):  
Michael D. Ward ◽  
Jeffrey Schwartz


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