各位虫友好,我最近想用NH3-FTIR来表征分子筛催化剂的B酸和L酸,但是前两天做实验,用的分子筛是HZSM-5(200),分别在200,300,400,500,600℃下采集背景和NH3脱附的图谱,得到的图这个样子的,感觉不像是出峰,所以在想是不是实验步骤出问题了?请各位大神帮帮忙,给予指点,谢谢啦! HZSM-5(200).jpg...
RT,最好是南京地区，不然长三角地区也可以。目的是要测出催化剂的表面酸性，L酸与B酸。粉末状。
NH3-TPD and FTIR spectroscopy of pyridine adsorption studies for characterization of Ag- and Cu-exchanged X zeolites Magnoux, NH3-TPD and FTIR spectroscopy of pyridine adsorption studies for characterization of Ag- and Cu-exchanged X zeolites, Microporous Mesoporous Mater... P Ayrault,Y Boucheffa,...
NH3 adsorptionNH3 competitive adsorbed FTIR method is proposed for investigating the interaction between confined species and acidic sites. Results indicate aromatic cations formed in SAPO-34 cages. The cations have much higher extinction coefficient than the corresponding aromatics. They cause the new ...
Therefore, the study of adsorbed ammonia at high temperature is a key step for the understanding of its role in the NH3-SCR catalytic cycle. We employed different spectroscopic techniques to investigate the nature of the different complexes occurring upon NH3 interaction. In particular, FTIR ...
NH3-TPD and FTIR spectroscopy of pyridine adsorption studies for characterization of Ag- and Cu-exchanged X zeolites. Microporous Mesoporous Mater. 2008, 111, 80-88.Benaliouche, F.; Boucheffa, Y.; Ayrault, P.; Mignard, S.; Magnoux, P. NH3-TPD and FTIR Spectroscopy of Pyridine Adsorption...
Copper-on-alumina catalystscopper formateFTIR spectroscopyNH3 and NO adsorptionAdsorption and coadsorption of NH 3 and NO on copper-on-alumina catalysts prepared from formate precursors by calcination at 670 and 870 K was studied by means of FTIR spectroscopy. It has been established that the ...
NH3 and NO adsorptionAdsorption and coadsorption of NH 3 and NO on alumina-supported manganese oxide catalyst prepared from manganese formate precursor has been studied by means of FTIR spectroscopy.doi:10.1007/BF02475263D. StoilovaK. Cheshkova...
FTIR study of CO and NH3 co-adsorption on TiO2 (rutile). Applied Surface Science 135 (1998) pp 331-338Konstantin Hadjiivanov, “FTIR study of CO and NH co-adsorption on TiO2 (rutile),” Applied Surface Science vol. 135, 1998, pp.331~338. :...
First multi-year ground-based measurements of NH3 total columns over the Paris region (France), from the OASIS FTIR solar observatoryChelin, PascaleTournadre, BenoitRay, MokhtarCuesta, JuanLandsheere, XavierFortems-Cheiney, AudreyDufour, Gaelle...