An in situ attenuated total reflection-surface enhanced infrared absorption spectroscopic study of enhanced methanol electro-oxidation activity on carbon-supported Pt nanoparticles by poly(vinylpyrrolidone) of different molecular weights

2012 ◽  
Vol 82 ◽  
pp. 543-549 ◽  
Author(s):  
Augusta M. Hofstead-Duffy ◽  
De-Jun Chen ◽  
YuYe J. Tong
2006 ◽  
Vol 110 (9) ◽  
pp. 4162-4169 ◽  
Author(s):  
Sheng-Juan Huo ◽  
Xiao-Kang Xue ◽  
Yan ◽  
Qiao-Xia Li ◽  
Min Ma ◽  
...  

2017 ◽  
Vol 10 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Michal Oravec ◽  
Katsuya Miura ◽  
Michal Čeppana

Abstract Only black inkjet prints were studied with regard to forensic examination of documents. We analysed twenty-one inkjet prints using surface-enhanced infrared absorption spectroscopy (SEIRAS). The present paper deals with micro-destructive document analysis based on silver nanoparticles (AgNPs) use to obtain surface enhanced ATR-FTIR (attenuated total reflection - Fourier transform infrared) spectra directly from the document. For this experiment, AgNPs in colloid form was applied. AgNPs for SEIRAS analyses were synthesised and afterwards analysed by scanning electron microscopy (SEM). The purpose of the enhancement of colloids was to improve the resolution of the absorption signal of the analysed samples from noise. In the experiment, the obtained ink ATR-FTIR spectra, with and without silver treatment, were significantly affected by the paper base.


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