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Dey S, Folkestad SD, Paul AC, Koch H, Krylov AI. Core-ionization spectrum of liquid water. Phys Chem Chem Phys 2024; 26:1845-1859. [PMID: 38174659 DOI: 10.1039/d3cp02499g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
We present state-of-the-art calculations of the core-ionization spectrum of water. Despite significant progress in procedures developed to mitigate various experimental complications and uncertainties, the experimental determination of ionization energies of solvated species involves several non-trivial steps such as assessing the effect of the surface potential, electrolytes, and finite escape depths of photoelectrons. This provides a motivation to obtain robust theoretical values of the intrinsic bulk ionization energy and the corresponding solvent-induced shift. Here we develop theoretical protocols based on coupled-cluster theory and electrostatic embedding. Our value of the intrinsic solvent-induced shift of the 1sO ionization energy of water is -1.79 eV. The computed absolute position and the width of the 1sO peak in photoelectron spectrum of water are 538.47 eV and 1.44 eV, respectively, agreeing well with the best experimental values.
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Affiliation(s)
- Sourav Dey
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Sarai Dery Folkestad
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Alexander C Paul
- Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Henrik Koch
- Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Anna I Krylov
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
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2
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Hong A, Ulrich T, Thomson ES, Trachsel J, Riche F, Murphy JG, Donaldson DJ, Schneebeli M, Ammann M, Bartels-Rausch T. Uptake of Hydrogen Peroxide from the Gas Phase to Grain Boundaries: A Source in Snow and Ice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:11626-11633. [PMID: 37497736 PMCID: PMC10413943 DOI: 10.1021/acs.est.3c01457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023]
Abstract
Hydrogen peroxide is a primary atmospheric oxidant significant in terminating gas-phase chemistry and sulfate formation in the condensed phase. Laboratory experiments have shown an unexpected oxidation acceleration by hydrogen peroxide in grain boundaries. While grain boundaries are frequent in natural snow and ice and are known to host impurities, it remains unclear how and to which extent hydrogen peroxide enters this reservoir. We present the first experimental evidence for the diffusive uptake of hydrogen peroxide into grain boundaries directly from the gas phase. We have machined a novel flow reactor system featuring a drilled ice flow tube that allows us to discern the effect of the ice grain boundary content on the uptake. Further, adsorption to the ice surface for temperatures from 235 to 258 K was quantified. Disentangling the contribution of these two uptake processes shows that the transfer of hydrogen peroxide from the atmosphere to snow at temperatures relevant to polar environments is considerably more pronounced than previously thought. Further, diffusive uptake to grain boundaries appears to be a novel mechanism for non-acidic trace gases to fill the highly reactive impurity reservoirs in snow's grain boundaries.
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Affiliation(s)
- Angela
C. Hong
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Thomas Ulrich
- Laboratory
of Atmospheric Chemistry, Paul Scherrer
Institute, Villigen
PSI CH-5232, Switzerland
| | - Erik S. Thomson
- Department
of Chemistry and Molecular Biology, Atmospheric Science, University of Gothenburg, Gothenburg SE-41296, Sweden
| | - Jürg Trachsel
- WSL
Institute for Snow and Avalanche Research SLF, Davos Dorf CH-7260, Switzerland
| | - Fabienne Riche
- WSL
Institute for Snow and Avalanche Research SLF, Davos Dorf CH-7260, Switzerland
| | - Jennifer G. Murphy
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - D. James Donaldson
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Martin Schneebeli
- WSL
Institute for Snow and Avalanche Research SLF, Davos Dorf CH-7260, Switzerland
| | - Markus Ammann
- Laboratory
of Atmospheric Chemistry, Paul Scherrer
Institute, Villigen
PSI CH-5232, Switzerland
| | - Thorsten Bartels-Rausch
- Laboratory
of Atmospheric Chemistry, Paul Scherrer
Institute, Villigen
PSI CH-5232, Switzerland
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3
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Haug L, Griesser C, Thurner CW, Winkler D, Moser T, Thaler M, Bartl P, Rainer M, Portenkirchner E, Schumacher D, Dierschke K, Köpfle N, Penner S, Beyer MK, Loerting T, Kunze-Liebhäuser J, Klötzer B. A laboratory-based multifunctional near ambient pressure X-ray photoelectron spectroscopy system for electrochemical, catalytic, and cryogenic studies. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:065104. [PMID: 37862508 DOI: 10.1063/5.0151755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/27/2023] [Indexed: 10/22/2023]
Abstract
A versatile multifunctional laboratory-based near ambient pressure x-ray photoelectron spectroscopy (XPS) instrument is presented. The entire device is highly customized regarding geometry, exchangeable manipulators and sample stages for liquid- and solid-state electrochemistry, cryochemistry, and heterogeneous catalysis. It therefore delivers novel and unique access to a variety of experimental approaches toward a broad choice of functional materials and their specific surface processes. The high-temperature (electro)catalysis manipulator is designed for probing solid state/gas phase interactions for heterogeneous catalysts including solid electrolyzer/fuel cell electrocatalysts at pressures up to 15 mbar and temperatures from room temperature to 1000 °C. The liquid electrochemistry manipulator is specifically designed for in situ spectroscopic investigations of polarized solid/liquid interfaces using aqueous electrolytes and the third one for experiments for ice and ice-like materials at cryogenic temperatures to approximately -190 °C. The flexible and modular combination of these setups provides the opportunity to address a broad spectrum of in situ and operando XPS experiments on a laboratory-based system, circumventing the limited accessibility of experiments at synchrotron facilities.
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Affiliation(s)
- Leander Haug
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Christoph Griesser
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Christoph W Thurner
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Daniel Winkler
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Toni Moser
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Marco Thaler
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Pit Bartl
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Manuel Rainer
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | | | - David Schumacher
- SPECS Surface Nano Analysis GmbH, Voltastraße 5, 13355 Berlin, Germany
| | - Karsten Dierschke
- SPECS Surface Nano Analysis GmbH, Voltastraße 5, 13355 Berlin, Germany
| | - Norbert Köpfle
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Simon Penner
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Martin K Beyer
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - Thomas Loerting
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Julia Kunze-Liebhäuser
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Bernhard Klötzer
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
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4
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Liu J, Han Y, Liu C, Yang B, Liu Z. Origin of the Liquid/Gaseous Water Binding Energy Splitting Measured via X-ray Photoelectron Spectroscopy. J Phys Chem Lett 2023; 14:863-869. [PMID: 36657017 DOI: 10.1021/acs.jpclett.2c03099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ambient-pressure X-ray photoelectron spectroscopy (APXPS) provides an effective way of tackling the challenge of detecting chemical states within complex systems. Here a fundamental understanding of the core-level shift (CLS) of water in the liquid/gas phase observed via APXPS is obtained with computational modeling at the molecular and electronic levels. The CLS value of ∼2 eV derived from experiments is reproduced by modeling in terms of the total shift and photon energy dependence. The contributions of collective electrical effects, including electrostatic potential, orbital deformation, and electronic polarization, to the CLS were further analyzed and discussed. Our results show that the CLS is dominated by the final state effect due to electronic polarization of the surrounding molecules following photoionization, while the peak broadening is mainly determined by the electrostatic potential, which belongs to an initial state effect. The physical insights and computational approaches could be further applied to study more complex molecules or materials.
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Affiliation(s)
- Jian Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Yong Han
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Center for Transformative Science, ShanghaiTech University, Shanghai201210, China
| | - Chiyan Liu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Bo Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Zhi Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Center for Transformative Science, ShanghaiTech University, Shanghai201210, China
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5
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Ivanova T, Harizanova A, Shipochka M, Vitanov P. Nickel Oxide Films Deposited by Sol-Gel Method: Effect of Annealing Temperature on Structural, Optical, and Electrical Properties. MATERIALS 2022; 15:ma15051742. [PMID: 35268971 PMCID: PMC8910923 DOI: 10.3390/ma15051742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/10/2022]
Abstract
In our study, transparent and conductive films of NiOx were successfully deposited by sol-gel technology. NiOx films were obtained by spin coating on glass and Si substrates. The vibrational, optical, and electrical properties were studied as a function of the annealing temperatures from 200 to 500 °C. X-ray Photoelectron (XPS) spectroscopy revealed that NiO was formed at the annealing temperature of 400 °C and showed the presence of Ni+ states. The optical transparency of the films reached 90% in the visible range for 200 °C treated samples, and it was reduced to 76–78% after high-temperature annealing at 500 °C. The optical band gap of NiOx films was decreased with thermal treatments and the values were in the range of 3.92–3.68 eV. NiOx thin films have good p-type electrical conductivity with a specific resistivity of about 4.8 × 10−3 Ω·cm. This makes these layers suitable for use as wideband semiconductors and as a hole transport layer (HTL) in transparent solar cells.
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Affiliation(s)
- Tatyana Ivanova
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria; (A.H.); (P.V.)
- Correspondence:
| | - Antoaneta Harizanova
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria; (A.H.); (P.V.)
| | - Maria Shipochka
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G, Bonchev St., bl. 11, 1113 Sofia, Bulgaria;
| | - Petko Vitanov
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria; (A.H.); (P.V.)
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6
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Barry ME, Aydogan Gokturk P, DeStefano AJ, Leonardi AK, Ober CK, Crumlin EJ, Segalman RA. Effects of Amphiphilic Polypeptoid Side Chains on Polymer Surface Chemistry and Hydrophilicity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7340-7349. [PMID: 35089024 DOI: 10.1021/acsami.1c22683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polymers are commonly used in applications that require long-term exposure to water and aqueous mixtures, serving as water purification membranes, marine antifouling coatings, and medical implants, among many other applications. Because polymer surfaces restructure in response to the surrounding environment, in situ characterization is crucial for providing an accurate understanding of the surface chemistry under conditions of use. To investigate the effects of surface-active side chains on polymer surface chemistry and resultant interactions with interfacial water (i.e., water sorption), we present synchrotron ambient pressure X-ray photoelectron spectroscopy (APXPS) studies performed on poly(ethylene oxide) (PEO)- and poly(dimethylsiloxane) (PDMS)-based polymer surfaces modified with amphiphilic polypeptoid side chains, previously demonstrated to be efficacious in marine fouling prevention and removal. The polymer backbone and environmental conditions were found to affect polypeptoid surface presentation: due to the surface segregation of its fluorinated polypeptoid monomers under vacuum, the PEO-peptoid copolymer showed significant polypeptoid content in both vacuum and hydrated conditions, while the modified PDMS-based copolymer showed increased polypeptoid content only in hydrated conditions due to the hydrophilicity of the ether monomers and polypeptoid backbone. Polypeptoids were found to bind approximately 2.8 water molecules per monomer unit in both copolymers, and the PEO-peptoid surface showed substantial water sorption that suggests a surface with a more diffuse water/polymer interface. This work implies that side chains are ideal for tuning water affinity without altering the base polymer composition, provided that surface-driving groups are present to ensure activity at the interface. These types of systematic modifications will generate novel polymers that maximize bound interfacial water and can deliver surface-active groups to the surface to improve the effectiveness of polymer materials.
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Affiliation(s)
- Mikayla E Barry
- Materials Department, University of California, Santa Barbara, California 93106, United States
| | - Pinar Aydogan Gokturk
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Audra J DeStefano
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Amanda K Leonardi
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Christopher K Ober
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Ethan J Crumlin
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rachel A Segalman
- Materials Department, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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7
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Interlayered modified hydroxides for removal of graphene oxide from water: Mechanism and secondary applications. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Arrigo R, Blume R, Streibel V, Genovese C, Roldan A, Schuster ME, Ampelli C, Perathoner S, Velasco Vélez JJ, Hävecker M, Knop-Gericke A, Schlögl R, Centi G. Dynamics at Polarized Carbon Dioxide–Iron Oxyhydroxide Interfaces Unveil the Origin of Multicarbon Product Formation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04296] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Rosa Arrigo
- School of Science, Engineering and Environment, University of Salford, Cockcroft Building, Greater Manchester M5 4WT, U.K
- Diamond Light Source Ltd., Harwell Science & Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | - Raoul Blume
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Verena Streibel
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Chiara Genovese
- Departments ChiBioFarAm, ERIC aisbl, and CASPE/INSTM, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Alberto Roldan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Wales U.K
| | | | - Claudio Ampelli
- Departments ChiBioFarAm, ERIC aisbl, and CASPE/INSTM, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Siglinda Perathoner
- Departments ChiBioFarAm, ERIC aisbl, and CASPE/INSTM, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Juan J. Velasco Vélez
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Michael Hävecker
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Axel Knop-Gericke
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Gabriele Centi
- Departments ChiBioFarAm, ERIC aisbl, and CASPE/INSTM, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
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Enhanced surface coverage of anchoring quaternary ammonium salts (AQAS) on oxygen-plasma treated quartz substrates. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Tkachenko NV, Tkachenko AA, Kulyukin VA, Boldyrev AI. DFT Study of Microsolvated [NO 3·(H 2O) n] - ( n = 1-12) Clusters and Molecular Dynamics Simulation of Nitrate Solution. J Phys Chem A 2021; 125:8899-8906. [PMID: 34591472 DOI: 10.1021/acs.jpca.1c07206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Investigation of the process of the NO3- anion solvation is central to understanding the chemical and physical properties of its aqueous solutions. The importance of this topic can be seen in atmospheric chemistry, as well as in nuclear waste processing research. In this work, we used a particle swarm optimization technique driven by density functional theory to sample the potential energy surface of various microsolvated [NO3·(H2O)n]- (n = 1-12) clusters. We found that the charge transfer plays a crucial role in the stabilization of the investigated species. Moreover, by conducting ab initio molecular dynamics simulations, we showed that at low concentrations (∼0.2 M) the NO3- species tend to be located on the surface of water solution. We also observed that the contact ion pair K+-NO3- undergoes a fast dissociation and each of the ions is solvated separately. As a result, from our calculations, we expect that at low concentration there could be oppositely signed concentration gradients for NO3- and K+ ions in a thin water film.
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Affiliation(s)
- Nikolay V Tkachenko
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, Utah 84322-0300, United States
| | - Anastasiia A Tkachenko
- Department of Computer Science, Utah State University, 0300 Old Main Hill, Logan, Utah 84322-0300, United States
| | - Vladimir A Kulyukin
- Department of Computer Science, Utah State University, 0300 Old Main Hill, Logan, Utah 84322-0300, United States
| | - Alexander I Boldyrev
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, Utah 84322-0300, United States
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11
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Pinakov DV, Makotchenko VG, Semushkina GI, Chekhova GN, Prosvirin IP, Asanov IP, Fedoseeva YV, Makarova AA, Shubin YV, Okotrub AV, Bulusheva LG. Redox reactions between acetonitrile and nitrogen dioxide in the interlayer space of fluorinated graphite matrices. Phys Chem Chem Phys 2021; 23:10580-10590. [PMID: 33903859 DOI: 10.1039/d0cp06412b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The interlayer space of 2D materials can be a slit reactor where transformations not typical for the gas phase occur. We report redox reactions involving acetonitrile and nitrogen oxide guests in galleries of fluorinated graphite. Fluorinated graphite intercalation compounds with acetonitrile are treated with dinitrogen tetraoxide and the synthesis products are studied by a set of experimental methods. Data analysis reveals that N2O4 dissociates in fluorinated graphite matrices to form nitrogen-containing species NO3, NO2, NO, and N2. The interaction of NO3 with acetonitrile yields HNO3, which predominates as a guest in the synthesis products independently of the fluorination degree of the matrix. This reaction is accompanied by the removal of fluorine atoms weakly bonded to the graphite layers, leading to partial defluorination of the matrices. Our work demonstrates the possibility of using fluorinated graphite as a test nanoreactor whose dimension can be controlled by fluorination of the layers.
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Affiliation(s)
- D V Pinakov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - V G Makotchenko
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - G I Semushkina
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - G N Chekhova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - I P Prosvirin
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - I P Asanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - Yu V Fedoseeva
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - A A Makarova
- Physikalische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany
| | - Yu V Shubin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - A V Okotrub
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
| | - L G Bulusheva
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia.
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12
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Chen YH, Chen G, Lee DJ. Synthesis of low surface energy thin film of polyepichlorohydrin-triazole-ols. J Colloid Interface Sci 2020; 575:452-463. [PMID: 32388291 DOI: 10.1016/j.jcis.2020.04.130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 10/24/2022]
Abstract
HYPOTHESIS The dispersive and polar components of surface energy are influenced by the effective molecular size and the intra-molecular configurations of the polar groups, respectively. The surface energy was hypothesized that the surface energy of a polyepichlorohydrin (PECH)-triazole polymer can be reduced by adding an end hydroxyl group (a polar group) which can interact with the nitrogen on the triazole group to reduce the net dipole of the molecule and to reduce the increase in dispersive surface energy by the addition of alkyl chain (dispersive group). EXPERIMENTS The chlorine atom on PECH rubber was firstly substituted by an azide group, which was then converted to triazole groups linked with alkyl-ol that contained 1-4 carbon atoms. The polymers thus-produced were then spin-coated onto a silicon wafer to form a thin film characterized by static contact angles (30 s contact) and dynamic contact angles for drops of water and diiodomethane. FINDINGS The newly synthesized materials have sufficient thin film-formation capacity. Dual interactions that involve interactions between alkyl-ol hydroxyl group and amine nitrogen and the interaction between ether oxygen and imine nitrogen cause the dispersive surface energy to decrease as the alkyl chain length increases. Consequently, a very low polar surface energy of 0.14 mJ/m2 was obtained for PECH-triazole-propyl-ol, a material without any halogen atoms.
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Affiliation(s)
- Yu-Han Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan, Republic of China
| | - Guohua Chen
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan, Republic of China; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China; College of Engineering, Tunghai University, Taichung 40704, Taiwan, Republic of China.
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13
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Rehr JJ, Vila FD, Kas JJ, Hirshberg NY, Kowalski K, Peng B. Equation of motion coupled-cluster cumulant approach for intrinsic losses in x-ray spectra. J Chem Phys 2020; 152:174113. [PMID: 32384843 DOI: 10.1063/5.0004865] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a combined equation of motion coupled-cluster cumulant Green's function approach for calculating and understanding intrinsic inelastic losses in core level x-ray absorption spectra (XAS) and x-ray photoemission spectra. The method is based on a factorization of the transition amplitude in the time domain, which leads to a convolution of an effective one-body absorption spectrum and the core-hole spectral function. The spectral function characterizes intrinsic losses in terms of shake-up excitations and satellites using a cumulant representation of the core-hole Green's function that simplifies the interpretation. The one-body spectrum also includes orthogonality corrections that enhance the XAS at the edge.
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Affiliation(s)
- J J Rehr
- Department of Physics, University of Washington Seattle, Seattle, Washington 98195, USA
| | - F D Vila
- Department of Physics, University of Washington Seattle, Seattle, Washington 98195, USA
| | - J J Kas
- Department of Physics, University of Washington Seattle, Seattle, Washington 98195, USA
| | - N Y Hirshberg
- Department of Physics, University of Washington Seattle, Seattle, Washington 98195, USA
| | - K Kowalski
- Physical Sciences Division, Battelle, Pacific Northwest National Laboratory, K8-91, PO Box 999, Richland, Washington 99352, USA
| | - B Peng
- Physical Sciences Division, Battelle, Pacific Northwest National Laboratory, K8-91, PO Box 999, Richland, Washington 99352, USA
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14
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Ferrag C, Abdinejad M, Kerman K. Synthesis of a polyacrylamide hydrogel using CO2 at room temperature. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0337] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Carbon dioxide (CO2) is an environmentally harmful “greenhouse gas” that is present in abundant quantities in the earth’s atmosphere. Thus, the sequestration and conversion of CO2 to value-added organic chemicals is of environmental and economical importance. In this proof-of-concept study, amine groups of acrylamide compounds were found to react with CO2 under ambient conditions to form a polyacrylamide hydrogel. This composite was characterized using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR) and electrospray ionization mass spectrometry (ESI–MS), which confirmed successful synthesis and demonstrated all characteristics representative of a typical hydrogel material. Rheology analyses further proved the formation of the hydrogel, as well as its self-healing nature. The novel approach proposed in this work can potentially be used in the construction of versatile amine-based gel materials for efficient CO2 utilization applications.
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Affiliation(s)
- Celia Ferrag
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
| | - Maryam Abdinejad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
| | - Kagan Kerman
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
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15
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Singh J, Chae KH. Local Electronic Structure Perspectives of Nanoparticle Growth: The Case of MgO. ACS OMEGA 2019; 4:7140-7150. [PMID: 31459823 PMCID: PMC6649258 DOI: 10.1021/acsomega.9b00262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 02/19/2019] [Indexed: 06/10/2023]
Abstract
Herein, we reported nanoparticle growth from the point of view of the local electronic structure by taking MgO as a prototype material. These nanoparticles were obtained from the sol-gel autocombustion process. The precursor formed in this process was annealed for various temperatures ranging from 300 to 1200 °C for 0.5 and 1 h. It was observed that the amorphous phase occurred in the material synthesized at an annealing temperature of 300 °C for 1 h. This phase transformed to crystalline when the annealing temperature was increased to 350 °C. Crystallite size increased with annealing temperature; however, annealing time did not influence the crystallite size. To get deeper insights of modifications occurring at the atomic scale during crystallization growth, the local electronic structure of synthesized materials was investigated by measuring near-edge X-ray absorption fine structure at Mg, O, N, and C K-edges. These results envisaged that Mg2+ ion coordination improved with the increase of annealing temperature. It was also observed that both annealing time and annealing temperature are sensitive to the local electronic structural changes.
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Affiliation(s)
| | - Keun Hwa Chae
- Advanced Analysis Center, Korea
Institute of Science and Technology, Seoul 02792, Republic
of Korea
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16
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Dehvari K, Liu KY, Tseng PJ, Gedda G, Girma WM, Chang JY. Sonochemical-assisted green synthesis of nitrogen-doped carbon dots from crab shell as targeted nanoprobes for cell imaging. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.08.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Waldner A, Artiglia L, Kong X, Orlando F, Huthwelker T, Ammann M, Bartels-Rausch T. Pre-melting and the adsorption of formic acid at the air-ice interface at 253 K as seen by NEXAFS and XPS. Phys Chem Chem Phys 2018; 20:24408-24417. [PMID: 30221299 DOI: 10.1039/c8cp03621g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interactions between trace gases and ice are important in environmental chemistry and for Earth's climate. In particular, the adsorption of trace gases to ice surfaces at temperatures approaching the melting point has raised interest in the past, because of the prevailing pre-melting. Here, we present Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy data at ambient partial pressure of water to better define the onset temperature of pre-melting at the interfacial region of ice. Further, this study directly compares the interaction between an organic acid common in the atmosphere, formic acid, and that of an aliphatic carbon with ice at 253 K. It makes use of X-ray Photoelectron Spectroscopy (XPS) with its inherent narrow probing depth covering both the surface and near-surface bulk region when detecting electrons. We use the tender X-ray range for excitation to locate the organic species within the interfacial region with an extended probing depth compared to published XPS work. Electron kinetic energy dependent C1s photoemission data indicate that, at low coverage of a few 1014 molecules cm-2, the presence of formic acid is restricted to the upper ice layers of the interfacial region. Increasing the dosage, formic acid penetrates 6-7 nm into the air-ice interface. The presence of the more hydrophobic aliphatic carbon is restricted to the upper ice monolayers. This direct comparison of an organic acid with an aliphatic compound confirms the emerging picture where solutes enter the interfacial region of ice at a depth related to their specific tendency to form solvation shells.
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Affiliation(s)
- Astrid Waldner
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
| | - Luca Artiglia
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
| | - Xiangrui Kong
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
| | - Fabrizio Orlando
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
| | - Thomas Huthwelker
- Swiss Light Source (SLS), Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Markus Ammann
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
| | - Thorsten Bartels-Rausch
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
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18
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McFall AS, Edwards KC, Anastasio C. Nitrate Photochemistry at the Air-Ice Interface and in Other Ice Reservoirs. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5710-5717. [PMID: 29667816 DOI: 10.1021/acs.est.8b00095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The photolysis of snowpack nitrate (NO3-) is an important source of gaseous reactive nitrogen species that affect atmospheric oxidants, particularly in remote regions. However, it is unclear whether nitrate photochemistry differs between the three solute reservoirs in/on ice: in liquid-like regions (LLRs) in the ice; within the solid ice matrix; and in a quasi-liquid layer (QLL) at the air-ice interface, where past work indicates photolysis is enhanced. In this work, we explore the photoformation of nitrite in these reservoirs using laboratory ices. Nitrite quantum yields, Φ(NO2-), at 313 nm for aqueous and LLR ice samples agree with previous values, e.g., 0.65 ± 0.07% at -10 °C. For ice samples made via flash-freezing solution in liquid nitrogen, where nitrate is possibly present as a solid solution, the nitrite quantum yield is 0.57 ± 0.05% at -10 °C, similar to the LLR results. In contrast, the quantum yield at the air-ice interface is enhanced by a factor of 3.7 relative to LLRs, with a value of 2.39 ± 0.24%. These results indicate nitrate photolysis is enhanced at the air-ice interface, although the importance of this enhancement in the environment depends on the amount of nitrate present at the interface.
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Affiliation(s)
- Alexander S McFall
- Department of Land, Air, and Water Resources , University of California, Davis , Davis , California 95616 , United States
| | - Kasey C Edwards
- Department of Land, Air, and Water Resources , University of California, Davis , Davis , California 95616 , United States
| | - Cort Anastasio
- Department of Land, Air, and Water Resources , University of California, Davis , Davis , California 95616 , United States
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19
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Lin X, Liu B, Huang H, Shi C, Liu Y, Kang Z. One-step synthesis of ZnS-N/C nanocomposites derived from Zn-based chiral metal–organic frameworks with highly efficient photocatalytic activity for the selective oxidation of cis-cyclooctene. Inorg Chem Front 2018. [DOI: 10.1039/c7qi00693d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnS-N/C derived from Zn-based chiral MOFs exhibits excellent photocatalytic activity for the selective oxidation of cis-cyclooctene under mild conditions.
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Affiliation(s)
- Xiaoling Lin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou
- China
| | - Beibei Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou
- China
| | - Hui Huang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou
- China
| | - Chunfeng Shi
- State Key Laboratory of Catalytic Materials and Reaction Engineering
- Research Institute of Petroleum Processing
- SINOPEC
- Beijing
- China
| | - Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou
- China
| | - Zhenhui Kang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou
- China
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20
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Kong X, Waldner A, Orlando F, Artiglia L, Huthwelker T, Ammann M, Bartels-Rausch T. Coexistence of Physisorbed and Solvated HCl at Warm Ice Surfaces. J Phys Chem Lett 2017; 8:4757-4762. [PMID: 28902513 DOI: 10.1021/acs.jpclett.7b01573] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The interfacial ionization of strong acids is an essential factor of multiphase and heterogeneous chemistry in environmental science, cryospheric science, catalysis research and material science. Using near ambient pressure core level X-ray photoelectron spectroscopy, we directly detected a low surface coverage of adsorbed HCl at 253 K in both molecular and dissociated states. Depth profiles derived from XPS data indicate the results as physisorbed molecular HCl at the outermost ice surface and dissociation occurring upon solvation deeper in the interfacial region. Complementary X-ray absorption measurements confirm that the presence of Cl- ions induces significant changes to the hydrogen bonding network in the interfacial region. This study gives clear evidence for nonuniformity across the air-ice interface and questions the use of acid-base concepts in interfacial processes.
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Affiliation(s)
- Xiangrui Kong
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Astrid Waldner
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
- Department of Environmental System Science, ETH Zürich , CH-8092 Zürich, Switzerland
| | - Fabrizio Orlando
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
| | - Luca Artiglia
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
| | - Thomas Huthwelker
- Swiss Light Source, Paul Scherrer Institute , CH-5232, Villigen PSI, Switzerland
| | - Markus Ammann
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
| | - Thorsten Bartels-Rausch
- Laboratory of Environmental Chemistry, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
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21
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Artiglia L, Edebeli J, Orlando F, Chen S, Lee MT, Corral Arroyo P, Gilgen A, Bartels-Rausch T, Kleibert A, Vazdar M, Andres Carignano M, Francisco JS, Shepson PB, Gladich I, Ammann M. A surface-stabilized ozonide triggers bromide oxidation at the aqueous solution-vapour interface. Nat Commun 2017; 8:700. [PMID: 28951540 PMCID: PMC5615067 DOI: 10.1038/s41467-017-00823-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 07/26/2017] [Indexed: 12/02/2022] Open
Abstract
Oxidation of bromide in aqueous environments initiates the formation of molecular halogen compounds, which is important for the global tropospheric ozone budget. In the aqueous bulk, oxidation of bromide by ozone involves a [Br•OOO−] complex as intermediate. Here we report liquid jet X-ray photoelectron spectroscopy measurements that provide direct experimental evidence for the ozonide and establish its propensity for the solution-vapour interface. Theoretical calculations support these findings, showing that water stabilizes the ozonide and lowers the energy of the transition state at neutral pH. Kinetic experiments confirm the dominance of the heterogeneous oxidation route established by this precursor at low, atmospherically relevant ozone concentrations. Taken together, our results provide a strong case of different reaction kinetics and mechanisms of reactions occurring at the aqueous phase-vapour interface compared with the bulk aqueous phase. Heterogeneous oxidation of bromide in atmospheric aqueous environments has long been suspected to be accelerated at the interface between aqueous solution and air. Here, the authors provide spectroscopic, kinetic and theoretical evidence for a rate limiting, surface active ozonide formed at the interface.
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Affiliation(s)
- Luca Artiglia
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland
| | - Jacinta Edebeli
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Institute of Atmospheric and Climate Sciences, ETH Zürich, 8092, Zürich, Switzerland
| | - Fabrizio Orlando
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland
| | - Shuzhen Chen
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Institute of Atmospheric and Climate Sciences, ETH Zürich, 8092, Zürich, Switzerland
| | - Ming-Tao Lee
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Chemical Physics Division, Department of Physics, Stockholm University, 10691, Stockholm, Sweden
| | - Pablo Corral Arroyo
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland
| | - Anina Gilgen
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.,Institute of Atmospheric and Climate Sciences, ETH Zürich, 8092, Zürich, Switzerland
| | | | - Armin Kleibert
- Swiss Light Source, Paul Scherrer Institut, 5232, Villigen, Switzerland
| | - Mario Vazdar
- Division of Organic Chemistry and Biochemistry, Rudjer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia
| | - Marcelo Andres Carignano
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, P.O. Box 34110, Doha, Qatar
| | - Joseph S Francisco
- Department of Chemistry, University of Nebraska-Lincoln, 433 Hamilton Hall, Lincoln, NE, 68588-0304, USA
| | - Paul B Shepson
- Department of Chemistry, and Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN, 46097, USA
| | - Ivan Gladich
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, P.O. Box 34110, Doha, Qatar.
| | - Markus Ammann
- Laboratory of Environmental Chemistry, Paul Scherrer Institut, 5232, Villigen, Switzerland.
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22
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Hudait A, Allen MT, Molinero V. Sink or Swim: Ions and Organics at the Ice–Air Interface. J Am Chem Soc 2017; 139:10095-10103. [DOI: 10.1021/jacs.7b05233] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arpa Hudait
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Michael T. Allen
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Valeria Molinero
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
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23
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Lee HJ, Hur SO, Ahn MK, Changez M, Lee JS. In situ formation of molecular-scale ordered polyaniline films by zinc coordination. NANOSCALE 2017; 9:6545-6550. [PMID: 28470300 DOI: 10.1039/c7nr01060e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Considerable research approaches have focused on improving the crystallinity of conducting polymers to enhance the electrical conductivity. However, it is difficult to control the arrangement of polymer chains without the use of expensive and complex methods because of the intrinsic morphology of polymers. Herein, we report a one-step in situ process to produce controlled molecular-scale ordered polyaniline (PANI) films by coordination crosslinking with Zn ions using solvent-vapor thermal annealing (SVTA). The resulting PANI film crosslinked by Zn coordination has a face-centered cubic structure at the molecular scale, which was confirmed by high-voltage electron microscopy. The in situ coordination crosslinking produced a new class of molecular ordering in the PANI films and drastically enhanced their conductivity, showing their potential for use in various electronic and energy devices.
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Affiliation(s)
- Hong-Joon Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, Korea.
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24
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Björneholm O, Hansen MH, Hodgson A, Liu LM, Limmer DT, Michaelides A, Pedevilla P, Rossmeisl J, Shen H, Tocci G, Tyrode E, Walz MM, Werner J, Bluhm H. Water at Interfaces. Chem Rev 2016; 116:7698-726. [PMID: 27232062 DOI: 10.1021/acs.chemrev.6b00045] [Citation(s) in RCA: 333] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The interfaces of neat water and aqueous solutions play a prominent role in many technological processes and in the environment. Examples of aqueous interfaces are ultrathin water films that cover most hydrophilic surfaces under ambient relative humidities, the liquid/solid interface which drives many electrochemical reactions, and the liquid/vapor interface, which governs the uptake and release of trace gases by the oceans and cloud droplets. In this article we review some of the recent experimental and theoretical advances in our knowledge of the properties of aqueous interfaces and discuss open questions and gaps in our understanding.
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Affiliation(s)
- Olle Björneholm
- Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden
| | - Martin H Hansen
- Technical University of Denmark , 2800 Kongens Lyngby, Denmark.,Department of Chemistry, University of Copenhagen , Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Andrew Hodgson
- Department of Chemistry, University of Liverpool , Liverpool L69 7ZD, United Kingdom
| | - Li-Min Liu
- Thomas Young Centre, London Centre for Nanotechnology, Department of Physics and Astronomy, and Department of Chemistry, University College London , London WC1E 6BT, United Kingdom.,Beijing Computational Science Research Center , Beijing, 100193, China
| | - David T Limmer
- Princeton Center for Theoretical Science, Princeton University , Princeton, New Jersey 08544, United States
| | - Angelos Michaelides
- Thomas Young Centre, London Centre for Nanotechnology, Department of Physics and Astronomy, and Department of Chemistry, University College London , London WC1E 6BT, United Kingdom
| | - Philipp Pedevilla
- Thomas Young Centre, London Centre for Nanotechnology, Department of Physics and Astronomy, and Department of Chemistry, University College London , London WC1E 6BT, United Kingdom
| | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen , Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Huaze Shen
- International Center for Quantum Materials and School of Physics, Peking University , Beijing 100871, China
| | - Gabriele Tocci
- Thomas Young Centre, London Centre for Nanotechnology, Department of Physics and Astronomy, and Department of Chemistry, University College London , London WC1E 6BT, United Kingdom.,Laboratory for fundamental BioPhotonics, Laboratory of Computational Science and Modeling, Institutes of Bioengineering and Materials Science and Engineering, School of Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne, Switzerland
| | - Eric Tyrode
- Department of Chemistry, KTH Royal Institute of Technology , 10044 Stockholm, Sweden
| | - Marie-Madeleine Walz
- Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden
| | - Josephina Werner
- Department of Physics and Astronomy, Uppsala University , Box 516, 751 20 Uppsala, Sweden.,Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences , Box 7015, 750 07 Uppsala, Sweden
| | - Hendrik Bluhm
- Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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25
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Flórez E, Acelas N, Ibargüen C, Mondal S, Cabellos JL, Merino G, Restrepo A. Microsolvation of NO3−: structural exploration and bonding analysis. RSC Adv 2016. [DOI: 10.1039/c6ra15059d] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rich and complex structural diversity is uncovered in the microsolvation of the nitrate anion.
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Affiliation(s)
| | - Nancy Acelas
- Departamento de Ciencias Básicas
- Universidad de Medellín
- Colombia
| | - César Ibargüen
- Departamento de Ciencias Básicas
- Universidad de Medellín
- Colombia
- Instituto de Química
- Universidad de Antioquia UdeA
| | - Sukanta Mondal
- Departamento de Física Aplicada
- Centro de Investigación y de Estudios Avanzados
- Unidad Mérida
- Mérida
- Mexico
| | - José Luis Cabellos
- Departamento de Física Aplicada
- Centro de Investigación y de Estudios Avanzados
- Unidad Mérida
- Mérida
- Mexico
| | - Gabriel Merino
- Departamento de Física Aplicada
- Centro de Investigación y de Estudios Avanzados
- Unidad Mérida
- Mérida
- Mexico
| | - Albeiro Restrepo
- Instituto de Química
- Universidad de Antioquia UdeA
- Medellín
- Colombia
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26
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George C, Ammann M, D’Anna B, Donaldson DJ, Nizkorodov S. Heterogeneous photochemistry in the atmosphere. Chem Rev 2015; 115:4218-58. [PMID: 25775235 PMCID: PMC4772778 DOI: 10.1021/cr500648z] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Indexed: 02/06/2023]
Affiliation(s)
- Christian George
- Université
de Lyon 1, Lyon F-69626, France
- CNRS, UMR5256,
IRCELYON, Institut de Recherches sur la Catalyse et
l’Environnement de Lyon, Villeurbanne F-69626, France
| | - Markus Ammann
- Laboratory
of Radiochemistry and Environmental Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Barbara D’Anna
- Université
de Lyon 1, Lyon F-69626, France
- CNRS, UMR5256,
IRCELYON, Institut de Recherches sur la Catalyse et
l’Environnement de Lyon, Villeurbanne F-69626, France
| | - D. J. Donaldson
- Department
of Chemistry and Department of Physical & Environmental Sciences, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Sergey
A. Nizkorodov
- Department
of Chemistry, University of California, Irvine, California 92697, United States
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27
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Marcotte G, Marchand P, Pronovost S, Ayotte P, Laffon C, Parent P. Surface-Enhanced Nitrate Photolysis on Ice. J Phys Chem A 2015; 119:1996-2005. [DOI: 10.1021/jp511173w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Guillaume Marcotte
- Département
de Chimie, Université de Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec, Canada J1K 2R1
| | - Patrick Marchand
- Département
de Chimie, Université de Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec, Canada J1K 2R1
| | - Stéphanie Pronovost
- Département
de Chimie, Université de Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec, Canada J1K 2R1
| | - Patrick Ayotte
- Département
de Chimie, Université de Sherbrooke, 2500 boul. de l’Université, Sherbrooke, Québec, Canada J1K 2R1
| | - Carine Laffon
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France
| | - Philippe Parent
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France
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28
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Yamuna A, Mandalam A, Karthigaiselvi A, Balasubramanian M, Thiruparasakthi B, Ravichandran S, Mayavan S. One-step synthesis of boron nitride carbon nanosheets containing zinc oxide for catalysis of the oxygen reduction reaction and degradation of organic dyes. RSC Adv 2015. [DOI: 10.1039/c5ra12082a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Boron nitride carbon sheets containing zinc oxide (ZnO/h-BNC) with a hexagonal B–N bond structure were synthesized by a one-step thermal treatment, and investigated for catalysis of oxygen reduction reaction and degradation of organic dye.
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Affiliation(s)
- A. Yamuna
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
| | - Aditya Mandalam
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
| | | | | | | | | | - Sundar Mayavan
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
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29
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Newberg JT, Bluhm H. Adsorption of 2-propanol on ice probed by ambient pressure X-ray photoelectron spectroscopy. Phys Chem Chem Phys 2015; 17:23554-8. [DOI: 10.1039/c5cp03821a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of 2-propanol with ice was examined via ambient pressure X-ray photoelectron spectroscopy (APXPS), a surface sensitive technique that probes the adsorbed 2-propanol directly with submonolayer resolution.
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Affiliation(s)
- John T. Newberg
- University of Delaware
- Department of Chemistry and Biochemistry
- Newark
- USA
| | - Hendrik Bluhm
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
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30
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Marrocco HA, Michelsen RRH. Nitrate Concentration near the Surface of Frozen Aqueous Solutions. J Phys Chem B 2014; 118:14929-41. [PMID: 25495473 DOI: 10.1021/jp508244u] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photolysis of nitrate plays an important role in the emission of nitrogen oxides from snow and ice, which affects the composition of the overlying atmosphere. In order to quantify these reactions, it is necessary to know how much nitrate is available for photolysis near the surfaces of snow and ice. The concentration of nitrate excluded from frozen solutions of nitric acid, sodium nitrate, and magnesium nitrate was measured with attenuated total reflection infrared spectroscopy. Liquid water and nitrate were observed at and near the bottom surface of frozen aqueous solutions during annealing from -18 to -2 °C. At -2 °C, the nitrate concentration was determined to be ∼1.0 mol/L for frozen NaNO(3) and Mg(NO(3))(2) solutions and ∼0.8 mol/L for frozen HNO(3) solutions. At lower temperatures, nitrate concentration ranged from 1.6 to 3.7 mol/L. Ideal thermodynamics overestimates nitrate concentration at colder temperatures where the brine is highly concentrated for all solutions. The nitrate concentration at ice surfaces is well described by bulk freezing point depression data close to the melting point of ice and for nitric acid at colder temperatures. Effects of temperature and counterions and implications for modeling snow chemistry are discussed.
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Affiliation(s)
- Harley A Marrocco
- Department of Chemistry, Randolph-Macon College , P.O. Box 5005, Ashland, Virginia 23005, United States
| | - Rebecca R H Michelsen
- Department of Chemistry, Randolph-Macon College , P.O. Box 5005, Ashland, Virginia 23005, United States
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31
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Kong X, Thomson ES, Papagiannakopoulos P, Johansson SM, Pettersson JBC. Water accommodation on ice and organic surfaces: insights from environmental molecular beam experiments. J Phys Chem B 2014; 118:13378-86. [PMID: 25079605 DOI: 10.1021/jp5044046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Water uptake on aerosol and cloud particles in the atmosphere modifies their chemistry and microphysics with important implications for climate on Earth. Here, we apply an environmental molecular beam (EMB) method to characterize water accommodation on ice and organic surfaces. The adsorption of surface-active compounds including short-chain alcohols, nitric acid, and acetic acid significantly affects accommodation of D2O on ice. n-Hexanol and n-butanol adlayers reduce water uptake by facilitating rapid desorption and function as inefficient barriers for accommodation as well as desorption of water, while the effect of adsorbed methanol is small. Water accommodation is close to unity on nitric-acid- and acetic-acid-covered ice, and accommodation is significantly more efficient than that on the bare ice surface. Water uptake is inefficient on solid alcohols and acetic acid but strongly enhanced on liquid phases including a quasi-liquid layer on solid n-butanol. The EMB method provides unique information on accommodation and rapid kinetics on volatile surfaces, and these studies suggest that adsorbed organic and acidic compounds need to be taken into account when describing water at environmental interfaces.
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Affiliation(s)
- Xiangrui Kong
- Department of Chemistry and Molecular Biology, Atmospheric Science, University of Gothenburg , SE-412 96 Gothenburg, Sweden
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32
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Shavorskiy A, Karslioglu O, Zegkinoglou I, Bluhm H. Synchrotron-based Ambient Pressure X-ray Photoelectron Spectroscopy. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/08940886.2014.889547] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Zhang Y, Chapleski RC, Lu JW, Rockhold TH, Troya D, Morris JR. Gas-surface reactions of nitrate radicals with vinyl-terminated self-assembled monolayers. Phys Chem Chem Phys 2014; 16:16659-70. [DOI: 10.1039/c4cp01982b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interfacial reactions between gas-phase nitrate radicals, a key nighttime atmospheric oxidant, and a model unsaturated organic surface have been investigated to determine the reaction kinetics and probable reaction mechanism.
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Affiliation(s)
- Yafen Zhang
- Department of Chemistry
- Virginia Polytechnic Institute and State University
- Blacksburg, USA
| | - Robert C. Chapleski
- Department of Chemistry
- Virginia Polytechnic Institute and State University
- Blacksburg, USA
| | - Jessica W. Lu
- Laboratory of Physical Chemistry
- ETH Zürich
- Zürich, Switzerland
| | | | - Diego Troya
- Department of Chemistry
- Virginia Polytechnic Institute and State University
- Blacksburg, USA
| | - John R. Morris
- Department of Chemistry
- Virginia Polytechnic Institute and State University
- Blacksburg, USA
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34
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Svoboda O, Kubelová L, Slavíček P. Enabling Forbidden Processes: Quantum and Solvation Enhancement of Nitrate Anion UV Absorption. J Phys Chem A 2013; 117:12868-77. [DOI: 10.1021/jp4098777] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ondřej Svoboda
- Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, 16628 Prague 6, Czech Republic
| | - Lucie Kubelová
- Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, 16628 Prague 6, Czech Republic
| | - Petr Slavíček
- Department of Physical Chemistry, Institute of Chemical Technology, Technická 5, 16628 Prague 6, Czech Republic
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35
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Kelly ST, Nigge P, Prakash S, Laskin A, Wang B, Tyliszczak T, Leone SR, Gilles MK. An environmental sample chamber for reliable scanning transmission x-ray microscopy measurements under water vapor. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:073708. [PMID: 23902077 DOI: 10.1063/1.4816649] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have designed, fabricated, and tested a compact gas-phase reactor for performing in situ soft x-ray scanning transmission x-ray microscopy (STXM) measurements. The reactor mounts directly to the existing sample holder used in the majority of STXM instruments around the world and installs with minimal instrument reconfiguration. The reactor accommodates many gas atmospheres, but was designed specifically to address the needs of measurements under water vapor. An on-board sensor measures the relative humidity and temperature inside the reactor, minimizing uncertainties associated with measuring these quantities outside the instrument. The reactor reduces x-ray absorption from the process gas by over 85% compared to analogous experiments with the entire STXM instrument filled with process gas. Reduced absorption by the process gas allows data collection at full instrumental resolution, minimizes radiation dose to the sample, and results in much more stable imaging conditions. The reactor is in use at the STXM instruments at beamlines 11.0.2 and 5.3.2.2 at the Advanced Light Source.
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Affiliation(s)
- Stephen T Kelly
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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36
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Schreiber S, Kerbrat M, Huthwelker T, Birrer M, Ammann M. Coupling a Knudsen reactor with the short lived radioactive tracer (13)N for atmospheric chemistry studies. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:035101. [PMID: 23556846 DOI: 10.1063/1.4793405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A Knudsen cell flow reactor was coupled to an online gas phase source of the short-lived radioactive tracer (13)N to study the adsorption of nitrogen oxides on ice at temperatures relevant for the upper troposphere. This novel approach has several benefits over the conventional coupling of a Knudsen cell with a mass spectrometer. Experiments at lower partial pressures close to atmospheric conditions are possible. The uptake to the substrate is a direct observable of the experiment. Operation of the experiment in continuous or pulse mode allows to retrieve steady state uptake kinetics and more details of adsorption and desorption kinetics.
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Affiliation(s)
- S Schreiber
- Department of Biology and Chemistry, Paul Scherrer Institut, Villigen, Switzerland
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37
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Křepelová A, Bartels-Rausch T, Brown MA, Bluhm H, Ammann M. Adsorption of Acetic Acid on Ice Studied by Ambient-Pressure XPS and Partial-Electron-Yield NEXAFS Spectroscopy at 230–240 K. J Phys Chem A 2013; 117:401-9. [DOI: 10.1021/jp3102332] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adéla Křepelová
- Laboratory
for Radiochemistry
and Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Thorsten Bartels-Rausch
- Laboratory
for Radiochemistry
and Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Matthew A. Brown
- Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland
| | - Hendrik Bluhm
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California
94720, United States
| | - Markus Ammann
- Laboratory
for Radiochemistry
and Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
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38
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Moussa SG, Kuo MH, McNeill VF. Nitric acid-induced surface disordering on ice. Phys Chem Chem Phys 2013; 15:10989-95. [DOI: 10.1039/c3cp50487e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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39
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Starr DE, Liu Z, Hävecker M, Knop-Gericke A, Bluhm H. Investigation of solid/vapor interfaces using ambient pressure X-ray photoelectron spectroscopy. Chem Soc Rev 2013; 42:5833-57. [DOI: 10.1039/c3cs60057b] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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40
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Marchand P, Marcotte G, Ayotte P. Spectroscopic Study of HNO3 Dissociation on Ice. J Phys Chem A 2012; 116:12112-22. [DOI: 10.1021/jp309533f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Patrick Marchand
- Département de Chimie, Université de Sherbrooke, 2500, boulevard université, Sherbrooke,
Québec J1K 2R1, Canada
| | - Guillaume Marcotte
- Département de Chimie, Université de Sherbrooke, 2500, boulevard université, Sherbrooke,
Québec J1K 2R1, Canada
| | - Patrick Ayotte
- Département de Chimie, Université de Sherbrooke, 2500, boulevard université, Sherbrooke,
Québec J1K 2R1, Canada
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41
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George C, D’Anna B, Herrmann H, Weller C, Vaida V, Donaldson DJ, Bartels-Rausch T, Ammann M. Emerging Areas in Atmospheric Photochemistry. Top Curr Chem (Cham) 2012; 339:1-53. [DOI: 10.1007/128_2012_393] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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42
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Parameters controlling the photocatalytic performance of ZnO/Hombikat TiO2 composites. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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43
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Affiliation(s)
- Veronica Vaida
- Department of Chemistry and Biochemistry, CIRES, University of Colorado, Boulder, Colorado 80309-0215, USA
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44
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Starr DE, Pan D, Newberg JT, Ammann M, Wang EG, Michaelides A, Bluhm H. Acetone adsorption on ice investigated by X-ray spectroscopy and density functional theory. Phys Chem Chem Phys 2011; 13:19988-96. [DOI: 10.1039/c1cp21493d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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45
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Křepelová A, Huthwelker T, Bluhm H, Ammann M. Surface Chemical Properties of Eutectic and Frozen NaCl Solutions Probed by XPS and NEXAFS. Chemphyschem 2010; 11:3859-66. [DOI: 10.1002/cphc.201000461] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Adéla Křepelová
- Laboratory for Radio‐ and Environmental Chemistry, Paul Scherrer Institut, 5232 Villigen (Switzerland), Fax: (+41) 056‐310‐4435
| | - Thomas Huthwelker
- Swiss Light Source, Paul Scherrer Institut, 5232 Villigen (Switzerland)
| | - Hendrik Bluhm
- Chemical Sciences Division, Lawrence Berkeley National Laboratory,Stop 6R2100, One Cyclotron Road, 94720 Berkeley, CA (USA)
| | - Markus Ammann
- Laboratory for Radio‐ and Environmental Chemistry, Paul Scherrer Institut, 5232 Villigen (Switzerland), Fax: (+41) 056‐310‐4435
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