Raman and inelastic neutron scattering spectra of (NH4)2SO3, an intermediate for solar hydrogen production

Raúl E. Orozco-Mena, Stewart F. Parker, Eduardo F. Herrera-Peraza, David Chávez-Flores, Hernando Romero-Paredes, Víctor H. Ramos-Sánchez

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The sulfur-ammonia (S–NH3) cycle uses the entire solar radiation spectrum to split water. It uses the UV radiation to promote the photolytic oxidation of ammonium sulfite to produce hydrogen and ammonium sulfate. Here, Raman and inelastic neutron scattering spectra of (NH4)2SO3·H2O at 20 K are discussed, supported by density functional theory (DFT) calculations. The feasibility of photolytic oxidation of this monohydrate to produce hydrogen at room temperature was also demonstrated.

Original languageEnglish (US)
Pages (from-to)30216-30222
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number51
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Ammonium sulfite
  • Inelastic neutron scattering
  • Photolytic oxidation
  • Raman scattering
  • Solar thermochemical cycle

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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