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[ CAS No. 874-60-2 ] {[proInfo.proName]}

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Chemical Structure| 874-60-2
Chemical Structure| 874-60-2
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Jonah B. Eisenberg ; Kwanpyung Lee ; Xin Yuan , et al. DOI:

Abstract: Phosphonic acid (PA) self-assembled monolayers (SAMs) were deposited onto Pt/Al2O3 catalysts to enable control over CO2 adsorption and CO2 activity. Significant differences in catalytic activity toward CO2 (reverse water-gas shift, RWGS) were observed after coating Al2O3 with , suggesting that the reaction was mediated by CO2adsorption on the support. Amine-functionalized were found to outperform their counterparts in terms of activity, however there was little effect of location in the (i.e., spacing between the functional group and phosphonate attachment group). One amine-PA and one alkyl-PA, aminopropyl phosphonic acid (C3NH2PA) and methyl phosphonic acid (C1PA), respectively, were investigated in more detail. The C3NH2PA-modified catalyst was found to bind CO2 as a combination of and bicarbonate. Additionally, at 30 °C, both were found to reduce CO2 adsorption uptake by approximately 50% compared to unmodified 5%Pt/Al2O3. CO2 adsorption enthalpy was measured for the catalysts and found to be strongly correlated with activity, with the trend in binding enthalpy and CO2 hydrogen rate trending as uncoated > C3NH2PA > C1PA. SAMs were found to have weaker effects on CO binding and CO selectivity, consistent with selective modification of the Al2O3support by the .

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

Phosphonic acid (PA) self-assembled monolayers (SAMs) were deposited onto Pt/Al2O3 catalysts to enable control over CO2 adsorption and CO2 hydrogenation activity. Significant differences in catalytic activity toward CO2 hydrogenation (reverse water-gas shift, RWGS) were observed after coating Al2O3 with PAs, suggesting that the reaction was mediated by CO2adsorption on the support. Amine-functionalized PAs were found to outperform their alkyl counterparts in terms of activity, however there was little effect of amine location in the SAM (i.e., spacing between the amine functional group and phosphonate attachment group). One amine-PA and one alkyl-PA, aminopropyl phosphonic acid (C3NH2PA) and methyl phosphonic acid (C1PA), respectively, were investigated in more detail. The C3NH2PA-modified catalyst was found to bind CO2 as a combination of carbamate and bicarbonate. Additionally, at 30 °C, both PAs were found to reduce CO2 adsorption uptake by approximately 50% compared to unmodified 5%Pt/Al2O3. CO2 adsorption enthalpy was measured for the catalysts and found to be strongly correlated with hydrogenation activity, with the trend in binding enthalpy and CO2 hydrogen rate trending as uncoated > C3NH2PA > C1PA. PA SAMs were found to have weaker effects on CO binding and CO selectivity, consistent with selective modification of the Al2O3support by the PAs. ; DOI:

Abstract: Phosphonic acid (PA) self-assembled monolayers (SAMs) were deposited onto Pt/Al2O3 catalysts to enable control over CO2 adsorption and CO2 activity. Significant differences in catalytic activity toward CO2 (reverse water-gas shift, RWGS) were observed after coating Al2O3 with , suggesting that the reaction was mediated by CO2adsorption on the support. Amine-functionalized were found to outperform their counterparts in terms of activity, however there was little effect of location in the (i.e., spacing between the functional group and phosphonate attachment group). One amine-PA and one alkyl-PA, aminopropyl phosphonic acid (C3NH2PA) and methyl phosphonic acid (C1PA), respectively, were investigated in more detail. The C3NH2PA-modified catalyst was found to bind CO2 as a combination of and bicarbonate. Additionally, at 30 °C, both were found to reduce CO2 adsorption uptake by approximately 50% compared to unmodified 5%Pt/Al2O3. CO2 adsorption enthalpy was measured for the catalysts and found to be strongly correlated with activity, with the trend in binding enthalpy and CO2 hydrogen rate trending as uncoated > C3NH2PA > C1PA. SAMs were found to have weaker effects on CO binding and CO selectivity, consistent with selective modification of the Al2O3support by the .

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

Zea is a genus of grasses in the Poaceae family, with its most famous member being corn. Corn is not only a crucial food source for humans and animals but also has widespread applications in the industrial and bioenergy sectors. Plants in the Zea genus are rich in carbohydrates, fiber, vitamins, and minerals, playing a significant role in providing energy and nutrition. ; DOI:

Abstract: Zea is a genus of grasses in the Poaceae family, with its most famous member being corn. Corn is not only a crucial food source for humans and animals but also has widespread applications in the industrial and bioenergy sectors. Plants in the Zea genus are rich in carbohydrates, fiber, vitamins, and minerals, playing a significant role in providing energy and nutrition.

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

Product Details of [ 874-60-2 ]

CAS No. :874-60-2 MDL No. :MFCD00000696
Formula : C8H7ClO Boiling Point : No data available
Linear Structure Formula :- InChI Key :NQUVCRCCRXRJCK-UHFFFAOYSA-N
M.W : 154.59 Pubchem ID :13405
Synonyms :
Chemical Name :4-Methylbenzoyl chloride

Safety of [ 874-60-2 ]

Signal Word:Danger Class:8
Precautionary Statements:P280-P305+P351+P338-P310 UN#:3265
Hazard Statements:H314 Packing Group:
GHS Pictogram:
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