1
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Hernández-Fontes C, Araiza DG, Díaz G, Pfeiffer H. Insight into CO selective chemisorption from syngas mixtures through Li 2MnO 3; a new H 2 enrichment material. REACT CHEM ENG 2023. [DOI: 10.1039/d2re00382a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Li2MnO3 is able to selectively trap CO in the presence of H2 at high temperatures, favoring H2 enrichment from syngas flows.
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Affiliation(s)
- Carlos Hernández-Fontes
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, Del. Coyoacán, Ciudad de México, CP 04510, Mexico
| | - Daniel G. Araiza
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, Del. Coyoacán, Ciudad de México, CP 04510, Mexico
| | - Gabriela Díaz
- Instituto de Física, Departamento de Física Química, Universidad Nacional Autónoma de México, Ciudad de México, CP 04510, Mexico
| | - Heriberto Pfeiffer
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, Del. Coyoacán, Ciudad de México, CP 04510, Mexico
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2
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Yuan S, Liu S, Du Y, Wang X, Zhang H, Yuan S. Atomistic insights into heterogeneous reaction of formic acid on mineral oxide particles. CHEMOSPHERE 2022; 287:132430. [PMID: 34600931 DOI: 10.1016/j.chemosphere.2021.132430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/26/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
The heterogeneous reaction between formic acid and mineral dust play an important role in tropospheric chemistry. However, the molecular mechanism on formic acid uptake on mineral dust is not yet to be fully understood. In our work, a comprehensive and multiscale theoretical study (include density functional theory, DFT calculations and reactive molecular dynamics, RMD simulations) has been provided to investigate this heterogeneous reaction at molecular level. The results of DFT calculations show that the SiO2 and TiO2 particles have a strong tendency to adsorb formic acid to its surface, and the attractive part of the binding energy was dominated by electrostatic component. RMD simulations show that the uptake of formic acid and water on TiO2 particles would modified TiO2 particles, which formed Ti-OH and Ti-OCHO on particle surface. Besides, the formic acid coordination surface modes were dominated by the monodentate formate mode rather than bidentate formate mode. The molecular level study is helpful for understanding the accumulation of formic acid on mineral dust particles and global balance of atmospheric formic acid.
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Affiliation(s)
- Shideng Yuan
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan, 250100, PR China
| | - Shasha Liu
- School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan, 250100, PR China
| | - Yingzhe Du
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan, 250100, PR China
| | - Xueyu Wang
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan, 250100, PR China
| | - Heng Zhang
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan, 250100, PR China
| | - Shiling Yuan
- Key Lab of Colloid and Interface Chemistry, Shandong University, Jinan, 250100, PR China.
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3
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Wang T, Liu Y, Deng Y, Cheng H, Yang Y, Feng Y, Zhang L, Fu H, Chen J. Photochemical Oxidation of Water-Soluble Organic Carbon (WSOC) on Mineral Dust and Enhanced Organic Ammonium Formation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15631-15642. [PMID: 33210909 DOI: 10.1021/acs.est.0c04616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Water-soluble organic carbon (WSOC), which is closely related to biogenic emissions, is of great importance in the atmosphere for its ubiquitous existence and rich abundance. Levoglucosan, a typical WSOC, is usually considered to be stable and thus used as a tracer of biomass burning. However, we found that levoglucosan can be photo-oxidized on mineral dust, with formic acid, oxalic acid, glyoxylic acid, 2,3-dioxopropanoic acid, dicarbonic acid, performic acid, mesoxalaldehyde, 2-hydroxymalonaldehyde, carbonic formic anhydride, and 1,3-dioxolane-2,4-dione detected as main products. Further, we observed the heterogeneous uptake of NH3 promoted by the carboxylic acids stemming from the photocatalytic oxidation (PCO) of levoglucosan. The mineral-dust-initiated PCO of levoglucosan and enhanced heterogeneous uptake of NH3, which are highly influenced by irradiation and moisture conditions, were for the first time revealed. The reaction mechanisms and pathways were studied in detail by diffuse reflection infrared Fourier transform spectroscopy (DRIFTS), high-pressure photon ionization time-of-flight mass spectrometry (HPPI-ToF-MS) and flow reactor systems. Diverse WSOC constituents were studied as well, and the reactivity toward NH3 is related to the number of hydroxyl groups of the WSOC molecules. This work reveals a new precursor of secondary organic aerosols and provides experimental evidence of the existence of organic ammonium salts in atmospheric particles.
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Affiliation(s)
- Tao Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yangyang Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yue Deng
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Hanyun Cheng
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yang Yang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yiqing Feng
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, People's Republic of China
| | - Hongbo Fu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
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4
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Wu HC, Chen TC, Wu JH, Pao CW, Chen CS. Influence of sodium-modified Ni/SiO 2 catalysts on the tunable selectivity of CO 2 hydrogenation: Effect of the CH 4 selectivity, reaction pathway and mechanism on the catalytic reaction. J Colloid Interface Sci 2020; 586:514-527. [PMID: 33162050 DOI: 10.1016/j.jcis.2020.10.117] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/19/2020] [Accepted: 10/26/2020] [Indexed: 11/27/2022]
Abstract
CO2 hydrogenation over Ni/SiO2 catalysts with and without Na additives was investigated in terms of the catalytic activity, selectivity of CO2 methanation and reaction mechanism. Na additives could cause the formation of Na2O species that might deposit on the Ni surface of Ni/SiO2 (NiNax/SiO2). When the Ni metal is partially covered with Na2O species, a highly positive charge on the Ni metal could occur compared to the original Ni/SiO2 catalyst. The addition of Na to the Ni/SiO2 catalyst could influence selectivity toward CO formation. The adsorbed formic acid is the major intermediate on the Ni/SiO2 catalyst during CO2 hydrogenation. The formic acid species might decompose into adsorbed CO complexes in the forms of linear CO, bridged CO and multibonded CO. CH4 formation should be ascribed to the hydrogenation of these adsorbed CO complexes. The Ni/SiO2 catalyst with the Na additive might have very weak ability for H2 and CO adsorption, thus making it difficult for CO methanation to occur. The hydrogen carbonate species adsorbed on the NiNax/SiO2 catalysts were proposed to be the key intermediate, and they might decompose to CO or be hydrogenated to form CH4.
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Affiliation(s)
- Hung-Chi Wu
- Center for General Education, Chang Gung University, 259, Wen-Hua 1st Rd., Guishan Dist., Taoyuan City 33302, Taiwan, Republic of China
| | - Tse-Ching Chen
- Department of Pathology, Chang Gung Memorial Hospital Linkou, 5, Fusing St, Guishan Dist, Taoyuan City 33302, Taiwan, Republic of China
| | - Jia-Huang Wu
- Center for General Education, Chang Gung University, 259, Wen-Hua 1st Rd., Guishan Dist., Taoyuan City 33302, Taiwan, Republic of China
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, Republic of China
| | - Ching-Shiun Chen
- Center for General Education, Chang Gung University, 259, Wen-Hua 1st Rd., Guishan Dist., Taoyuan City 33302, Taiwan, Republic of China; Department of Pathology, Chang Gung Memorial Hospital Linkou, 5, Fusing St, Guishan Dist, Taoyuan City 33302, Taiwan, Republic of China.
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5
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Lian HY, Pang SF, He X, Yang M, Ma JB, Zhang YH. Heterogeneous reactions of isoprene and ozone on α-Al 2O 3: The suppression effect of relative humidity. CHEMOSPHERE 2020; 240:124744. [PMID: 31557643 DOI: 10.1016/j.chemosphere.2019.124744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 08/16/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
The heterogeneous reactions of α-Al2O3 particles with a mixture of ozone (∼50 ppm) and isoprene (∼50 ppm) were studied as a function of relative humidities (RHs). The reactions were monitored in real time through the microscopic Fourier transform infrared (micro-FTIR) spectrometer. The results show that the presence of ozone leads to the rapid conversion of isoprene to carboxylate (COO-) ions on the surfaces of α-Al2O3 particles in the initial stage. The water significantly suppresses the formation of the carboxylate ions. For the isoprene ozonolysis reaction on the α-Al2O3 particles, the reactive uptake coefficient is strongly suppressed by over a factor of 8 when the RH increases from 8% to 89%. The negative correlation between RH with the secondary organic aerosol (SOA) produced by isoprene ozonolysis plays a key role in the actual atmospheric environment under high humidity. Our results may provide insight into the ozonolysis process of biogenic alkenes over mineral aerosol surfaces with the influence of RHs.
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Affiliation(s)
- Hong-Yang Lian
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Shu-Feng Pang
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Xiang He
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; College of Resource and Environment Sciences, Xinjiang University, Urumqi, 830046, PR China
| | - Miao Yang
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jia-Bi Ma
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China.
| | - Yun-Hong Zhang
- Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China.
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6
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Yang N, Tsona NT, Cheng S, Li S, Xu L, Wang Y, Wu L, Du L. Competitive reactions of SO 2 and acetic acid on α-Al 2O 3 and CaCO 3 particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134362. [PMID: 31522042 DOI: 10.1016/j.scitotenv.2019.134362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/06/2019] [Accepted: 09/07/2019] [Indexed: 06/10/2023]
Abstract
Heterogeneous reactions between gaseous pollutants and mineral particles have gradually become a research hotspot in the field of atmospheric chemistry. In this paper, competitive reactions between SO2 and acetic acid on the surface of α-Al2O3 and CaCO3 particles were studied by the diffuse reflectance infrared Fourier transform spectroscopic (DRIFTS) technique in dark and dry conditions. At the same time, the temporary evolution of the integrated absorbance of acetate and sulfite was investigated to further understand the interaction of SO2 and acetic acid on the mineral particles. On the surface of α-Al2O3 particles, acetate and sulfite can compete for surface-active sites, resulting in a decrease in the total amount of acetates. In dark and dry conditions, the effect of acetic acid on SO2 cannot be obtained by the DRIFTS method. On the surface of CaCO3 particles, SO2 can have a competitive impact on acetic acid by grabbing active sites, leading to a slight decrease of the amount of acetates. The heterogeneous reaction of SO2 can be impeded by coexisting acetic acid, resulting in a drastic reduction of the number of sulfites. It can be seen that the formation mechanisms of acetate and sulfite on the surface of different mineral particles in the atmosphere are different, which provides a variety of ideas and possibilities for the formation of related inorganic and organic salts in the atmosphere.
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Affiliation(s)
- Ning Yang
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Narcisse T Tsona
- School of Life Science, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Shumin Cheng
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Siyang Li
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Li Xu
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lingyan Wu
- State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, 46 Zhong Guan Cun S. Ave., Beijing 100081, China
| | - Lin Du
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China.
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7
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Zhang J, Tang C, Wang Q, Liu X, Du D. Analysis of nano-SiO2 affecting the acids diffusion in the interface between oil and cellulose paper. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2019.110557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Gao X, Leng C, Zeng G, Fu D, Zhang Y, Liu Y. Ozone initiated heterogeneous oxidation of unsaturated carboxylic acids by ATR-FTIR spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 214:177-183. [PMID: 30776719 DOI: 10.1016/j.saa.2019.02.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 01/31/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Despite considerable effort has been directed to ozone-initiated heterogeneous oxidation of unsaturated organic species in atmospheric environment, current knowledge about how chemical structure of unsaturated carboxylic acids affects their reaction kinetics remains very limited. Here, kinetics of heterogeneous reaction of ozone with six unsaturated fatty acids (oleic acid, vaccenic acid, eladic acid, myristoleic acid, palmitoleic acid and 2-hexadecenoic acid) were studied via a flow system combined with attenuated total reflection Fourier-transformed infrared spectroscopy (ATR-FTIR). Pseudo-first-order rate constants (kapp) and overall reactive uptake coefficients (γ) values were derived according to the changes in absorbance from infrared spectra. Results have shown reaction rates are highly dependent on structures of unsaturated fatty acids. Cis-isomer has faster reaction kinetics than trans-isomer, and conjugated system between CC and CO bonds can greatly inhibit reactivity. Also, it is found that a longer carbon chain length between CC bond and COOH group or a shorter chain length between CC bond and last carbon seemingly enhances reaction kinetics. In addition, changes in redox activity and hydrophilicity of oleic acid samples before and after exposure ozone have been reported for the first time. Results have revealed that ozone-initiated heterogeneous reaction can markedly increase redox activity and hydrophilicity of unsaturated carboxylic acids.
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Affiliation(s)
- Xiaoyan Gao
- Department of Chemistry, University of Colorado Denver, Denver, CO, 80217, USA; School of Chemical Engineering, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Chunbo Leng
- Department of Chemistry, University of Colorado Denver, Denver, CO, 80217, USA; The Institute of Chemical Physics, Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Guang Zeng
- Department of Chemistry, University of Colorado Denver, Denver, CO, 80217, USA; Institute of Nuclear Physics and Chemistry, China Academy of Engineering of Physics, Mianyang 621900, China
| | - Dong Fu
- Department of Chemistry, University of Colorado Denver, Denver, CO, 80217, USA
| | - Yunhong Zhang
- The Institute of Chemical Physics, Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yong Liu
- Department of Chemistry, University of Colorado Denver, Denver, CO, 80217, USA.
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9
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Wang T, Liu Y, Deng Y, Fu H, Zhang L, Chen J. The influence of temperature on the heterogeneous uptake of SO 2 on hematite particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:1493-1502. [PMID: 30743862 DOI: 10.1016/j.scitotenv.2018.07.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/03/2018] [Accepted: 07/03/2018] [Indexed: 06/09/2023]
Abstract
Despite the increased awareness of heterogeneous reactions of SO2 on mineral particles, the knowledge of how temperature influences the product species and kinetic parameters remain a crucially important part in atmospheric research. Here, we reported the formation of sulfur-containing species on hematite particles under various temperature and humidity conditions by mean of in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and ion chromatography (IC). High temperature is helpful in the ionization of H2SO3, making sulfite compounds occupy a great share among total products. The whole reaction could be divided into three stages according to the formation rate of hydroxyl groups. High temperature brings about more activated SO2 and then results in the increased uptake coefficients with increasing temperature in the initial reaction stage. On the contrary, moisture absorption on particles is inhibited by high temperature, leading to the decreased uptake coefficients with increasing temperature in the latter two stages. Observed enthalpy and entropy, as well as activation energy values for relevant reactions were calculated. Overall, the product specie and reaction rate vary with temperature and humidity conditions, as well as reaction stages. This work broadens the knowledge of heterogeneous reactions on mineral dust influenced by temperature, and consequently provides important opportunities for atmospheric model improvements.
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Affiliation(s)
- Tao Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yangyang Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Yue Deng
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Hongbo Fu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, People's Republic of China.
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, People's Republic of China
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10
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Xia K, Tong S, Zhang Y, Tan F, Chen Y, Zhang W, Guo Y, Jing B, Ge M, Zhao Y, Alamry KA, Marwani HM, Wang S. Heterogeneous Reaction of HCOOH on NaCl Particles at Different Relative Humidities. J Phys Chem A 2018; 122:7218-7226. [PMID: 30118231 DOI: 10.1021/acs.jpca.8b02790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The contribution of volatile organic acids to chloride depletion still remains unclear under ambient conditions in the coast and inland. In this work, the heterogeneous reaction of HCOOH on the NaCl surface at a series of relative humidities (RHs) was investigated using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The formate was found to be formed on NaCl surface under dry and wet conditions, accompanied by the corresponding chloride depletion. The adsorbed HCOOH and the formation of formate on NaCl surface decreased with increasing RH below 30% RH. The adsorbed HCOOH decreased, while the formation of formate increased with enhanced RH at 45-70% RH. The variation in the formation of formate with RH suggests that chloride depletion may undergo similar changes. Additionally, the mechanism and kinetics for uptake of HCOOH on NaCl surface at various RHs were discussed and analyzed. Our results highlight the role of heterogeneous chemistry of volatile organic acid in the chloride depletion of NaCl in the coast and inland.
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Affiliation(s)
- Kaihui Xia
- Institute of Intelligent Machines , Chinese Academy of Sciences , Hefei , Anhui 230031 , P. R. China.,University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China.,State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Shengrui Tong
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Ying Zhang
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Fang Tan
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yi Chen
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Wenqian Zhang
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yucong Guo
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Bo Jing
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstale and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yao Zhao
- Key Laboratory of Analytical Chemistry for Living Biosystems , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Khalid A Alamry
- Chemistry Department, Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Hadi M Marwani
- Chemistry Department, Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Suhua Wang
- Institute of Intelligent Machines , Chinese Academy of Sciences , Hefei , Anhui 230031 , P. R. China.,University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China.,Chemistry Department, Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia.,School of Environment and Chemical Engineering , North China Electric Power University , Beijing 102206 , P. R. China
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11
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Gao X, Zhang Y, Liu Y. A kinetics study of the heterogeneous reaction ofn-butylamine with succinic acid using an ATR-FTIR flow reactor. Phys Chem Chem Phys 2018; 20:15464-15472. [DOI: 10.1039/c8cp01914b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterogeneous reaction between succinic acid thin film and gas phasen-butylamine was studied, and results show that the reaction follows Langmuir–Hinshelwood mechanism and overall kinetics is dominated by surface reaction.
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Affiliation(s)
- Xiaoyan Gao
- The Institute of Chemical Physics
- Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Yunhong Zhang
- The Institute of Chemical Physics
- Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Yong Liu
- Department of Chemistry
- University of Colorado Denver
- Denver
- USA
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12
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Chen CS, Budi CS, Wu HC, Saikia D, Kao HM. Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO2 Hydrogenation. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02310] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ching-Shiun Chen
- Center
for General Education, Chang Gung University, 259, Wen-Hua First Road, Guishan District, Taoyuan City 33302, Taiwan, Republic of China
- Department
of Pathology, Chang Gung Memorial Hospital, 5, Fusing Street, Guishan District, Taoyuan City 33302, Taiwan, Republic of China
| | - Canggih Setya Budi
- Department
of Chemistry, National Central University, Chung-Li 32001, Taiwan, Republic of China
| | - Hung-Chi Wu
- Center
for General Education, Chang Gung University, 259, Wen-Hua First Road, Guishan District, Taoyuan City 33302, Taiwan, Republic of China
| | - Diganta Saikia
- Department
of Chemistry, National Central University, Chung-Li 32001, Taiwan, Republic of China
| | - Hsien-Ming Kao
- Department
of Chemistry, National Central University, Chung-Li 32001, Taiwan, Republic of China
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13
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Liu Q, Wang Y, Wu L, Jing B, Tong S, Wang W, Ge M. Temperature dependence of the heterogeneous uptake of acrylic acid on Arizona test dust. J Environ Sci (China) 2017; 53:107-112. [PMID: 28372734 DOI: 10.1016/j.jes.2016.03.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/07/2016] [Accepted: 03/26/2016] [Indexed: 06/07/2023]
Abstract
In this study, the temperature dependence of the heterogeneous uptake of acrylic acid on Arizona test dust (ATD) has been investigated within a temperature range of 255-315K using a Knudsen cell reactor. Combined with diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiment, it was found that acrylic acid could adsorb on ATD via surface OH groups and convert to carboxylate on the particle surface. The kinetics study suggests that the initial true uptake coefficient (γt) of acrylic acid on ATD decreases from (4.02±0.12)×10-5 to (1.73±0.05)×10-5 with a temperature increase from 255 to 315K. According to the temperature dependence of uptake coefficients, the enthalpy (ΔHobs) and entropy (ΔSobs) of uptake processes were determined to be -(9.60±0.38) KJ/mol and -(121.55±1.33) J·K/mol, respectively. The activation energy for desorption (Edes) was calculated to be (14.57±0.60) KJ/mol. These results indicated that the heterogeneous uptake of acrylic acid on ATD surface was sensitive to temperature. The heterogeneous uptake on ATD could affect the concentration of acrylic acid in the atmosphere, especially at low temperature.
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Affiliation(s)
- Qifan Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Yidan Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lingyan Wu
- State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing, 100081, China.
| | - Bo Jing
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Shengrui Tong
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Weigang Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Maofa Ge
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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14
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Wu L, Liu Q, Tong S, Jing B, Wang W, Guo Y, Ge M. Mechanism and Kinetics of Heterogeneous Reactions of Unsaturated Organic Acids on α-Al 2 O 3 and CaCO 3. Chemphyschem 2016; 17:3515-3523. [PMID: 27504908 DOI: 10.1002/cphc.201600668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 11/05/2022]
Abstract
Heterogeneous reactions have a vital role in the atmosphere due to their significant effects on the evolution of atmospheric aerosols, which in turn contribute to air pollution. However, the mechanism and kinetics of these processes involving unsaturated organic acids, important types of volatile organic compounds, are still unclear. In this work, the heterogeneous uptake of two representative atmospheric unsaturated organic acids (acrylic acid and methacrylic acid) on mineral aerosols including α-Al2 O3 and CaCO3 are investigated using a Knudsen cell reactor and an in situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) reactor. The corresponding reaction pathways are proposed from the DRIFTS analysis. In addition, the initial uptake coefficients of unsaturated organic acids and their heterogeneous fate are obtained for the first time. Our results suggest that heterogeneous reactions on α-Al2 O3 and CaCO3 can be important sinks for acrylic acid and methacrylic acid, as well as possible contributors to the organic coating found on atmospheric aerosols, especially in high-pollution events.
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Affiliation(s)
- Lingyan Wu
- State Key Laboratory of Severe Weather and Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing, 100081, P.R. China
| | - Qifan Liu
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R.China
| | - Shengrui Tong
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Bo Jing
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Weigang Wang
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yucong Guo
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Maofa Ge
- Beijing National Laboratory for Molecular Science (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R.China.,CAS Center for Excellence in Urban Atmospheric Environment (CEUAE), Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, P. R. China
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15
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Hou S, Tong S, Zhang Y, Tan F, Guo Y, Ge M. Heterogeneous Uptake of Gas-Phase Acetic Acid on the Surface of α-Al 2 O 3 Particles: Temperature Effects. Chem Asian J 2016; 11:2749-2755. [PMID: 27251942 DOI: 10.1002/asia.201600402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Indexed: 11/09/2022]
Abstract
Heterogeneous reactions are thought to play a significant role in the formation of haze, especially in wintertime, which suggests that temperature may affect the heterogeneous formation of organic aerosols. As the most-abundant carboxylic acid in the Earth's atmosphere, we chose acetic acid to study the effect of temperature on its heterogeneous reaction with α-Al2 O3 between 248 and 298 K. The products were characterized by in situ DRIFTS, which indicated that lowering the temperature slowed the formation of acetate, but promoted the formation of crystalline acetic acid. Moreover, low temperatures promoted a different reaction mechanism to that at room temperature. Owing to the formation of chain structures at low temperatures, crystalline acetic acid molecules covered the surface active sites on α-Al2 O3 , thereby inhibiting the formation of acetate. However, crystalline acetic acid reacted with α-Al2 O3 itself in a sequential manner. Furthermore, the reactive uptake coefficients, active energies, and acetic acid lifetimes at different temperatures were investigated.
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Affiliation(s)
- Siqi Hou
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shengrui Tong
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Ying Zhang
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Fang Tan
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yucong Guo
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
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16
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Fang Y, Tang M, Grassian VH. Competition between Displacement and Dissociation of a Strong Acid Compared to a Weak Acid Adsorbed on Silica Particle Surfaces: The Role of Adsorbed Water. J Phys Chem A 2016; 120:4016-24. [DOI: 10.1021/acs.jpca.6b02262] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan Fang
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
- Department
of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Mingjin Tang
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Vicki H. Grassian
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
- Department
of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
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17
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Rubasinghege G, Ogden S, Baltrusaitis J, Grassian VH. Heterogeneous uptake and adsorption of gas-phase formic acid on oxide and clay particle surfaces: the roles of surface hydroxyl groups and adsorbed water in formic acid adsorption and the impact of formic acid adsorption on water uptake. J Phys Chem A 2013; 117:11316-27. [PMID: 24079575 DOI: 10.1021/jp408169w] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic acids in the atmosphere are ubiquitous and are often correlated with mineral dust aerosol. Heterogeneous chemistry and the uptake of organic acids on mineral dust particles can potentially alter the properties of the particle. In this study, heterogeneous uptake and reaction of formic acid, HCOOH, the most abundant carboxylic acid present in the atmosphere, on oxide and clays of the most abundant elements, Si and Al, present in the Earth's crust are investigated under dry and humid conditions. In particular, quantitative adsorption measurements using a Quartz Crystal Microbalance (QCM) coupled with spectroscopic studies using Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) spectroscopy are combined to allow for both quantification of the amount of uptake and identification of distinct adsorbed species formed on silica, alumina, and kaolinite particle surfaces at 298 K. These oxides and clay particles show significant differences in the extent and speciation of adsorbed HCOOH due to inherent differences in surface -OH group reactivity. Adsorbed water, controlled by relative humidity, can increase the irreversible uptake of formic acid. Interestingly, the resulting layer of adsorbed formate on the particle surface decreases the particle hydrophilicity thereby decreasing the amount of water taken up by the surface as measured by QCM. Atmospheric implications of this study are discussed.
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Affiliation(s)
- Gayan Rubasinghege
- Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
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18
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Wu LY, Tong SR, Zhou L, Wang WG, Ge MF. Synergistic Effects between SO2 and HCOOH on α-Fe2O3. J Phys Chem A 2013; 117:3972-9. [DOI: 10.1021/jp400195f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ling-Yan Wu
- Beijing National Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.
China
- Beijing National
Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Peking University, Beijing 100871, P. R. China
| | - Sheng-Rui Tong
- Beijing National Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.
China
| | - Li Zhou
- Beijing National Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.
China
| | - Wei-Gang Wang
- Beijing National Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.
China
| | - Mao-Fa Ge
- Beijing National Laboratory
for Molecular Science (BNLMS), State Key Laboratory for Structural
Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.
China
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