Structural evolution of the Tuscan Nappe in the southeastern sector of the Apuan Alps metamorphic dome (Northern Apennines, Italy)

2005 ◽  
Vol 40 (1) ◽  
pp. 103-119 ◽  
Author(s):  
R. Carosi ◽  
C. Frassi ◽  
C. Montomoli ◽  
P. C. Pertusati
2002 ◽  
Vol 334 (5) ◽  
pp. 339-346 ◽  
Author(s):  
Rodolfo Carosi ◽  
Chiara Montomoli ◽  
Nicola Bertuccelli ◽  
Maurizio Profeti

Terra Nova ◽  
1995 ◽  
Vol 7 (2) ◽  
pp. 128-137 ◽  
Author(s):  
Luigi Carmignani ◽  
F. Antonio Decandia ◽  
Leonardo Disperati ◽  
P. Lorenzo Fantozzi ◽  
Antonio Lazzarotto ◽  
...  

Author(s):  
L.D. Schmidt ◽  
K. R. Krause ◽  
J. M. Schwartz ◽  
X. Chu

The evolution of microstructures of 10- to 100-Å diameter particles of Rh and Pt on SiO2 and Al2O3 following treatment in reducing, oxidizing, and reacting conditions have been characterized by TEM. We are able to transfer particles repeatedly between microscope and a reactor furnace so that the structural evolution of single particles can be examined following treatments in gases at atmospheric pressure. We are especially interested in the role of Ce additives on noble metals such as Pt and Rh. These systems are crucial in the automotive catalytic converter, and rare earths can significantly modify catalytic properties in many reactions. In particular, we are concerned with the oxidation state of Ce and its role in formation of mixed oxides with metals or with the support. For this we employ EELS in TEM, a technique uniquely suited to detect chemical shifts with ∼30Å resolution.


2019 ◽  
Vol 11 (2.5) ◽  
pp. 1-78 ◽  
Author(s):  
Paolo Conti ◽  
Gianluca Cornamusini ◽  
Luigi Carmignani ◽  
Giancarlo Molli

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