Adsorbed carbon monoxide — FTIR-absorptions-toppe og tildelinger
Dette er de karakteristiske FTIR-bølgetal, hvor Adsorbed carbon monoxide har tendens til at absorbere, samlet fra publiceret litteratur og rangeret efter understøttende bevis. Hver tildeling kan spores til en kilde (DOI) og krydsvalideres mod vores 130.000+ referencespektre og vidensgraf.
Backed by 8 cited sources
Hurtigt svar
Adsorbed carbon monoxide tildeles normalt ved at lede efter en tilbagevendende klynge af karakteristiske toppe frem for et præcist lærebogsnummer. Tabellen nedenfor viser, hvor litteraturen oftest placerer denne gruppe i FTIR, rangeret efter akkumuleret evidens.
Karakteristiske FTIR-toppe for Adsorbed carbon monoxide
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 2100 | 7 | 4 | 1,0 |
| 2000 | 5 | 3 | 1,0 |
| 669 | 4 | 4 | 1,0 |
| 2181 | 4 | 4 | 1,0 |
| 1900 | 4 | 3 | 1,0 |
| 2050 | 4 | 3 | 1,0 |
| 2115 | 4 | 2 | 1,0 |
| 2060 | 3 | 2 | 1,0 |
| 2079 | 3 | 1 | 1,0 |
| 2040 | 2 | 2 | 1,0 |
| 2080 | 2 | 2 | 1,0 |
| 2173 | 2 | 2 | 1,0 |
| 3650 | 2 | 2 | 1,0 |
| 2070 | 2 | 2 | 1,0 |
| 2186 | 2 | 2 | 1,0 |
| 2130 | 2 | 2 | 1,0 |
| 2065 | 2 | 2 | 1,0 |
| 2010 | 2 | 2 | 1,0 |
| 2141 | 2 | 2 | 1,0 |
| 2113 | 2 | 2 | 1,0 |
| 1760 | 2 | 1 | 1,0 |
| 2140 | 2 | 1 | 1,0 |
| 2119 | 2 | 1 | 1,0 |
| 2178 | 2 | 1 | 1,0 |
| 2170 | 2 | 1 | 1,0 |
| 2156 | 2 | 1 | 1,0 |
| 2200 | 2 | 1 | 1,0 |
| 2112 | 2 | 1 | 1,0 |
| 2035 | 2 | 1 | 1,0 |
| 2124 | 2 | 1 | 1,0 |
Viser de 30 bedst understøttede toppe ud af 149 i alt for Adsorbed carbon monoxide.
Spektrumlogik
En funktionel gruppetildeling bliver mere sikker, når flere forventede bånd optræder sammen. Brug denne side til at finde de bedst understøttede peaks, og bekræft derefter, at den samme prøve udviser et sammenhængende mønster snarere end et enkelt isoleret hit.
Anvendelse i virkeligheden
Disse sider er nyttige til analyse af ukendte materialer, topforklaring i rapporter, polymerfejlfinding og verifikation af, om en kandidatmaterialefamilie er kemisk plausibel.
Almindelige fejl
- Brug af én funktionel-gruppe-side som en komplet materialebedømmelse uden at kontrollere resten af spektret.
- Antager, at det stærkeste bånd altid er det mest diagnostiske.
- At glemme, at forarbejdning, tilsætningsstoffer, ældning og blandinger kan flytte eller udvide forventede toppe.
Verifikationsrådgivning
Brug DSC, GC-MS eller TGA, når flere materialefamilier deler lignende bånd, eller når blandings-effekter gør FTIR-tildelingen usikker.
Litteratur bag disse tildelinger
-
2400 cm⁻¹ tillid 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 tillid 1,0
“FTIR cm-1 of 1% Pt/CeO shows a strongly adsorbed CO peak at 2082 corresponding to oxidized Pt.”
Bera 等 - 2003 - Promoting effect of CeO2 in combustion synthesized DOI: 10.1021/jp022132f -
2091 cm⁻¹ tillid 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.”
Chen 等 - 2005 - Infrared study of benzene hydrogenation on PtSiO2 DOI: 10.1007/s10562-005-8684-7 -
1611 cm⁻¹ tillid 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.”
Effect of gallia doping on the acid⠍base and redox properties of ceria DOI: 10.1016/j.apcata.2010.08.050 -
2088 cm⁻¹ tillid 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 tillid 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.”
Fanson 等 - 2001 - Island formation during kinetic rate oscillations DOI: 10.1006/jcat.2001.3369 -
2115 cm⁻¹ tillid 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”
Gaur 等 - 2013 - CO oxidation studies over cluster-derived AuTiO2 DOI: 10.1016/j.cattod.2012.10.029 -
2340 cm⁻¹ tillid 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/TiO<sub>2</sub> DOI: 10.1021/jp0568733
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