Uptake of Methacrolein into Aqueous Solutions of Sulfuric Acid and   Hydrogen Peroxide

doi:10.1021/jp2100649

CORC > 北京大学 > 化学与分子工程学院

	Uptake of Methacrolein into Aqueous Solutions of Sulfuric Acid and Hydrogen Peroxide
	Liu, Ze ; Wu, Ling-Yan ; Wang, Tian-He ; Ge, Mao-Fa ; Wang, Wei-Gang
刊名	journal of physical chemistry a
	2012
关键词	METHYL VINYL KETONE PHASE OXIDATION-PRODUCTS GAS-PHASE AEROSOLS ISOPRENE OH ATMOSPHERE CLIMATE CLOUD TUBES
DOI	10.1021/jp2100649
英文摘要	Multiphase acid-catalyzed oxidation by hydrogen peroxide has been suggested to be a potential route to secondary organic aerosol (SOA) formation from isoprene and its gas-phase oxidation products, but the kinetics and chemical Mechanism remain largely uncertain. Here we report the first measurement of uptake of methacrolein into aqueous solutions of sulfuric acid and hydrogen peroxide in the temperature range of 253-293 K. The steady-state uptake coefficients were acquired and increased quickly with increasing sulfuric acid concentration and decreasing temperature. Propyne, acetone, and 2,3-dihydroxymethacrylic acid were suggested as the products. The chemical mechanism is proposed to be the oxidation of carbonyl group and C=C double bonds by peroxide hydrogen in acidic environment, which could explain the large content of polyhydroxyl compounds in atmospheric fine particles. These results indicate that multiphase acid-catalyzed oxidation of methacrolein by hydrogen peroxide can contribute to SOA mass in the atmosphere, especially in the upper troposphere.; Chemistry, Physical; Physics, Atomic, Molecular & Chemical; SCI(E); 0; ARTICLE; 1; 437-442; 116
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/235257]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Ze,Wu, Ling-Yan,Wang, Tian-He,et al. Uptake of Methacrolein into Aqueous Solutions of Sulfuric Acid and Hydrogen Peroxide[J]. journal of physical chemistry a,2012.
APA	Liu, Ze,Wu, Ling-Yan,Wang, Tian-He,Ge, Mao-Fa,&Wang, Wei-Gang.(2012).Uptake of Methacrolein into Aqueous Solutions of Sulfuric Acid and Hydrogen Peroxide.journal of physical chemistry a.
MLA	Liu, Ze,et al."Uptake of Methacrolein into Aqueous Solutions of Sulfuric Acid and Hydrogen Peroxide".journal of physical chemistry a (2012).