Combining in situ characterization methods in one set-up: looking with more eyes into the intricate chemistry of the synthesis and working of heterogeneous catalysts

2010 ◽  
Vol 39 (12) ◽  
pp. 4718 ◽  
Author(s):  
Ursula Bentrup
Keyword(s):  
Heterogeneous Catalysts ◽  
In Situ Characterization ◽  
Characterization Methods ◽  
Set Up

scholarly journals Impact of the Binder Nature on the Morphological Change of Sulfur Electrodes upon Cycling Investigated By in Situ Characterization Methods

2020 ◽  
Vol MA2020-02 (45) ◽  
pp. 3788-3788
Author(s):  
Quentin Lemarie ◽  
Hassane Idrissi ◽  
Eric Maire ◽  
Pierre-Xavier Thivel ◽  
Fannie Alloin ◽  
...  
Keyword(s):  
Morphological Change ◽  
In Situ Characterization ◽  
Characterization Methods

In Situ Characterization of Dynamic Changes in the Microstructure and Chemistry of Catalysts

2001 ◽  
Vol 7 (S2) ◽  
pp. 1058-1059
Author(s):  
P.A. Crozier
Keyword(s):  
Electron Microscopy ◽  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Catalytic Reactions ◽  
In Situ Characterization ◽  
Dynamic Changes ◽  
In Situ Electron Microscopy ◽  
Reactive Gas

Controlled atmosphere electron microscopy (CAEM) is a form of in situ microscopy in which the sample is exposed to a reactive gas during observation. This instrument essentially combines the nano-structural characterization features of a TEM with a microreactor and is ideal for studying gas/solid reactions in catalysts. Such in situ techniques can provide a link between surface studies performed under UHV conditions and catalytic reactions run in high-pressure reactors. with correctly designed experiments, CAEM is a powerful technique for correlating dynamic changes in microstructure with catalysis and can be used to provide insights on the location of active sites and mechanisms for catalysis. Baker and colleagues have worked for over thirty years on different heterogeneous catalysts using in situ electron microscopy (see [1] for example). Gai has also published many studies on the application of CAEM to oxide catalysts [2].The technique usually relies on detecting a change in the heterogeneous catalyst during a catalytic reaction.

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