Adsorbed carbon monoxide — Puncak serapan FTIR dan tugasan

Jawapan pantas

Adsorbed carbon monoxide biasanya ditetapkan dengan mencari kelompok berulang puncak ciri dan bukan satu nombor tepat buku teks. Jadual di bawah menunjukkan di mana literatur paling kerap meletakkan kumpulan ini dalam FTIR, yang disusun mengikut bukti terkumpul.

Puncak FTIR ciri untuk Adsorbed carbon monoxide

Menunjukkan 30 puncak terbaik disokong daripada 147 jumlah untuk Adsorbed carbon monoxide.

Logik spektrum

Tugasan kumpulan berfungsi menjadi lebih yakin apabila beberapa jalur yang dijangkakan muncul bersama. Gunakan halaman ini untuk mencari puncak yang paling disokong, kemudian sahkan bahawa sampel yang sama menunjukkan corak yang koheren dan bukannya satu hit terpencil.

Penggunaan dunia sebenar

Halaman-halaman ini berguna untuk analisis bahan yang tidak diketahui, penjelasan puncak dalam laporan, penyelesaian masalah polimer, dan mengesahkan sama ada keluarga bahan calon adalah boleh dipercayai secara kimia.

Kesilapan biasa

• Menggunakan satu halaman kumpulan berfungsi sebagai keputusan bahan lengkap tanpa memeriksa spektrum yang lain.
• Dengan menganggap jalur yang paling kuat sentiasa menjadi yang paling diagnostik.
• Melupakan bahawa pemprosesan, bahan tambahan, penuaan, dan campuran boleh mengalihkan atau melebarkan puncak yang dijangkakan.

Nasihat pengesahan

Gunakan DSC, GC-MS, atau TGA apabila beberapa keluarga bahan berkongsi jalur yang serupa atau apabila kesan campuran menyebabkan tugasan FTIR tidak pasti.

Literatur di sebalik penetapan ini

• 2400 cm⁻¹ keyakinan 1.0

  “The deformation band of C=O at around and absorption peaks ob2400cm(cid:2)1 served ordinary between 2300 and due to adsorbed CO molecules in air are absent in our”

  Mn doped ZnO nanostructured thin films prepared by ultrasonic spray pyrolysis method DOI: 10.1016/j.spmi.2012.06.023
• 2082 cm⁻¹ keyakinan 1.0

  “FTIR cm-1 of 1% Pt/CeO shows a strongly adsorbed CO peak at 2082 corresponding to oxidized Pt.”

  Promoting Effect of CeO2 in Combustion Synthesized Pt/CeO2 Catalyst for CO Oxidation DOI: 10.1021/jp022132f
• 2091 cm⁻¹ keyakinan 1.0

  “Results of CO adsorbed on atop sites on Pt/SiO 2 2 cm)1 includes: an peak at 2091 a peak at 2080 and a peak at 2067 indicating three kinds of adsorption sites for a b c dissociative hydrogen on Pt/SiO 2.”

  Infrared Study of Benzene Hydrogenation on Pt/SiO2 Catalyst by Co-adsorption of CO and Benzene DOI: 10.1007/s10562-005-8684-7
• 1611 cm⁻¹ keyakinan 1.0

  “comparetothatobservedonpuregalliumorceriumoxides.Inaddition to the bands mentioned above, the spectrum of CO adsorbed on CeGa-IC shows intense and sharp bands at 1611, 1390, and 1216cm-1, similar to those observed in the CO-Ga 2O spectrum.”

  Collins 等 - 2010 - Effect of gallia doping on the acid-base and redox DOI: 10.1016/j.apcata.2010.08.050
• 2088 cm⁻¹ keyakinan 1.0

  “1997, 1880, and 1651 The observed peaks at 2088 and cm(cid:3)1 1880 are characteristic of CO adsorbed on different species of reflecting the decrease of the population of adsorption sites as a Pt0.Accordingtoliteraturedata,thesmallcarbonyls”

  CO oxidation and 4-nitrophenol reduction over ceria-promoted platinum nanoparticles impregnated with ZSM-5 zeolite DOI: 10.1016/j.jre.2021.07.009
• 2120 cm⁻¹ keyakinan 1.0

  “over Pt/SiO 2 Otherauthors,however,eitherhavenotobservedapeak The oxidation of carbon monoxide is one of the most incm¡1 at all (1, 12) or have not observed the peak to at 2120 tensely studied reactions in the history of catalysis.”

  Island Formation during Kinetic Rate Oscillations in the Oxidation of CO over Pt/SiO2: A Transient Fourier Transform Infrared Spectrometry Study DOI: 10.1006/jcat.2001.3369
• 2115 cm⁻¹ keyakinan 1.0

  “DRIFTS results on 2 cm-1 bands at 2115 and 2173 are indicative of linearly adsorbed CO adsorption using in situ FTIR (DRIFTS) was used to probe the on metallic gold [5] and the titania support [29], respectively, CO”

  CO oxidation studies over cluster-derived Au/TiO2 and AUROlite™ Au/TiO2 catalysts using DRIFTS DOI: 10.1016/j.cattod.2012.10.029
• 2340 cm⁻¹ keyakinan 1.0

  “(A) Changes in the IR peak at around 2100 after switching to a flow of 2.5% O and (B) corresponding changes in the peak 2 cm-1, intensity (curve b) and intensity of the adsorbed CO peak (2340 curve a).”

  In Situ Transient FTIR and XANES Studies of the Evolution of Surface Species in CO Oxidation on Au/TiO2 DOI: 10.1021/jp0568733