CO Adsorption on Platinum Nanoparticles - the Importance of Size Distribution Studied with in-Situ DRIFTS and DFT Calculations

2015 ◽  
Vol 69 (17) ◽  
pp. 249-253 ◽  
Author(s):  
C. Brieger ◽  
J. Melke ◽  
P. Kaghazchi ◽  
C. Roth
Keyword(s):  
Dft Calculations ◽  
Size Distribution ◽  
Platinum Nanoparticles ◽  
Co Adsorption ◽  
In Situ Drifts

CO Adsorption Behavior of Cu/SiO2, Co/SiO2, and CuCo/SiO2 Catalysts Studied by in Situ DRIFTS

2012 ◽  
Vol 116 (14) ◽  
pp. 7931-7939 ◽  
Author(s):  
Miranda L. Smith ◽  
Nitin Kumar ◽  
James J. Spivey
Keyword(s):  
Co Adsorption ◽  
Adsorption Behavior ◽  
In Situ Drifts

Pd Nanoparticles Fabricated on Organic-Group Modified Silica and its Catalytic Performance for Acetylene Hydrogenation

2011 ◽  
Vol 233-235 ◽  
pp. 1884-1888
Author(s):  
Kang Jun Wang ◽  
Jing Wu ◽  
Ping Yu
Keyword(s):  
Sol Gel ◽  
Co Adsorption ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Pd Catalyst ◽  
Modified Silica ◽  
In Situ Drifts ◽  
Organic Group ◽  
Sol Gel Process

Aminopropyl-functionalized silica (NH2-SiO2) was obtained via a sol-gel process using tetraethoxylsilicate (TEOS) and aminopropyltriethoxysilane (APTES). Aminopropyl group contained silica was further modified with formaldehyde to achieve a novel organic group modified silica, denoted as CH2O-SiO2. Using CH2O-SiO2 as support to prepare surported Pd catalyst (denoted as Pd/M-SiO2), small Pd nanoparticles (1-2 nm) were fabricated on CH2O-SiO2 surport. Hydrogenation of acetylene is used as probe reaction to evaluate the catalytic performance of Pd/M-SiO2. The results indicate that Pd/M-SiO2 exhibits unique catalytic property, which the selectivity of ethylene increases with the increase of acetylene conversion. In-situ DRIFTS spectra of CO adsorption show that the organic groups presented on the silica affect the electronic property of the very small Pd nanoparticles, which causes the change of reaction paths of hydrogenation of acetylene over Pd/M-SiO2 compared with traditional supported Pd catalyst.

A comparative study of CO adsorption and oxidation on Au/Fe2O3 catalysts by FT-IR and in situ DRIFTS spectroscopies

2006 ◽  
Vol 252 (1-2) ◽  
pp. 163-170 ◽  
Author(s):  
Goran Šmit ◽  
Neven Strukan ◽  
Menno W.J. Crajé ◽  
Károly Lázár
Keyword(s):  
Comparative Study ◽  
Co Adsorption ◽  
In Situ Drifts ◽  
Ft Ir

scholarly journals Ge‐Substituted Hierarchical Ferrierite for n ‐Pentane Cracking to Light Olefins: Mechanistic Investigations via In‐situ DRIFTS Studies and DFT Calculations

ChemCatChem ◽  
2022 ◽  
Author(s):  
Chadatip Rodaum ◽  
Anawat Thivasasith ◽  
Ploychanok Iadrat ◽  
Pinit Kidkhunthod ◽  
Sitthiphong Pengpanich ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Light Olefins ◽  
In Situ Drifts ◽  
Mechanistic Investigations

Ge‐substituted hierarchical ferrierite for n‐pentane cracking to light olefins: Mechanistic  investigations via In‐situ DRIFTS studies and DFT calculations

ChemCatChem ◽  
2021 ◽  
Author(s):  
Chadatip Rodaum ◽  
Anawat Thivasasith ◽  
Ploychanok Iadrat ◽  
Pinit Kidkhunthod ◽  
Sitthiphong Pengpanich ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Light Olefins ◽  
In Situ Drifts ◽  
Mechanistic Investigations

Co-adsorption of hydrogen and CO on Pt film: An in-situ ATR-IR study combined with DFT calculations

2013 ◽  
Vol 38 (31) ◽  
pp. 13673-13679 ◽  
Author(s):  
Xingxing Feng ◽  
Manli Yao ◽  
Xin Hu ◽  
Gengshen Hu ◽  
Aiping Jia ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Co Adsorption ◽  
Adsorption Of Hydrogen ◽  
Ir Study
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