Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Aqueous Ammonium Nitrate Investigated Using Photoelectron Spectroscopy of Cylindrical and Flat Liquid Jets

Gallo, Tamires LU ; Michailoudi, Georgia ; Valerio, Joana ; Adriano, Luigi ; Heymann, Michael ; Schulz, Joachim LU ; Marinho, Ricardo dos Reis Teixeira LU ; Callefo, Flavia LU ; Walsh, Noelle LU and Öhrwall, Gunnar LU orcid (2024) In Journal of Physical Chemistry B 128(28). p.6866-6875
Abstract

Ammonium nitrate in aqueous solution was investigated with synchrotron radiation based photoelectron spectroscopy using two types of liquid jet nozzles. Electron emission from a cylindrical microjet of aqueous ammonium nitrate solution was measured at two different angles relative to the horizontal polarization of the incident synchrotron radiation, 90° and 54.7° (the “magic angle”), for a range of photon energies (470-530 eV). We obtained β parameter values as a function of photon energy, based on a normalization procedure relying on simulations of background intensity with the SESSA (Simulation of Electron Spectra for Surface Analysis) package. The β values are similar to literature data for O 1s ionization of liquid water, and the β... (More)

Ammonium nitrate in aqueous solution was investigated with synchrotron radiation based photoelectron spectroscopy using two types of liquid jet nozzles. Electron emission from a cylindrical microjet of aqueous ammonium nitrate solution was measured at two different angles relative to the horizontal polarization of the incident synchrotron radiation, 90° and 54.7° (the “magic angle”), for a range of photon energies (470-530 eV). We obtained β parameter values as a function of photon energy, based on a normalization procedure relying on simulations of background intensity with the SESSA (Simulation of Electron Spectra for Surface Analysis) package. The β values are similar to literature data for O 1s ionization of liquid water, and the β value of N 1s from NH4+ is higher than that for NO3-, by ≈0.1. The measurements also show that the photoelectron signal from NO3- exhibits a photon energy dependent cross section variation not observed in NH4+. Additional measurements using a flat jet nozzle found that the ammonium and nitrate peak area ratio was unaffected by changes in the takeoff angle, indicating a similar distribution of both ammonium and nitrate in the surface region.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry B
volume
128
issue
28
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85198107109
  • pmid:38976651
ISSN
1520-6106
DOI
10.1021/acs.jpcb.4c01755
language
English
LU publication?
yes
id
ef20c3d9-485d-4f69-87a3-d1bf30142b13
date added to LUP
2024-09-24 14:43:36
date last changed
2024-09-25 13:22:08
@article{ef20c3d9-485d-4f69-87a3-d1bf30142b13,
  abstract     = {{<p>Ammonium nitrate in aqueous solution was investigated with synchrotron radiation based photoelectron spectroscopy using two types of liquid jet nozzles. Electron emission from a cylindrical microjet of aqueous ammonium nitrate solution was measured at two different angles relative to the horizontal polarization of the incident synchrotron radiation, 90° and 54.7° (the “magic angle”), for a range of photon energies (470-530 eV). We obtained β parameter values as a function of photon energy, based on a normalization procedure relying on simulations of background intensity with the SESSA (Simulation of Electron Spectra for Surface Analysis) package. The β values are similar to literature data for O 1s ionization of liquid water, and the β value of N 1s from NH<sub>4</sub><sup>+</sup> is higher than that for NO<sub>3</sub><sup>-</sup>, by ≈0.1. The measurements also show that the photoelectron signal from NO<sub>3</sub><sup>-</sup> exhibits a photon energy dependent cross section variation not observed in NH<sub>4</sub><sup>+</sup>. Additional measurements using a flat jet nozzle found that the ammonium and nitrate peak area ratio was unaffected by changes in the takeoff angle, indicating a similar distribution of both ammonium and nitrate in the surface region.</p>}},
  author       = {{Gallo, Tamires and Michailoudi, Georgia and Valerio, Joana and Adriano, Luigi and Heymann, Michael and Schulz, Joachim and Marinho, Ricardo dos Reis Teixeira and Callefo, Flavia and Walsh, Noelle and Öhrwall, Gunnar}},
  issn         = {{1520-6106}},
  language     = {{eng}},
  number       = {{28}},
  pages        = {{6866--6875}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry B}},
  title        = {{Aqueous Ammonium Nitrate Investigated Using Photoelectron Spectroscopy of Cylindrical and Flat Liquid Jets}},
  url          = {{http://dx.doi.org/10.1021/acs.jpcb.4c01755}},
  doi          = {{10.1021/acs.jpcb.4c01755}},
  volume       = {{128}},
  year         = {{2024}},
}