PH effects on molecular hydrogen storage in porous organic cages deposited onto platinum electrodes

Naiara Hernández-Ibáñez, Jet Sing M. Lee, Jesus Iniesta, Vicente Montiel Leguey, Michael E. Briggs, Andrew I. Cooper, Elena Madrid, Frank Marken

Research output: Contribution to journalArticle

3 Citations (Scopus)
158 Downloads (Pure)

Abstract

Hydrogen absorption is a crucial process in energy storage (microscopic or macroscopic) and management and here a porous organic cage (POC) material is shown to bind and release hydrogen when deposited directly onto a platinum electrode and immersed into aqueous electrolyte. Preliminary voltammetry experiments for the POC CC3 deposited onto a platinum disc electrode reveal uptake and release of hydrogen gas (probably coupled to water release and uptake, respectively) in the vicinity of the electrode. Significant pH effects on the rate of binding and release are reported and explained with a change in H2 binding rate. In future, "wet" POCs or POCs dispersed in aqueous solution could be employed for enhancing hydrogen capture/transport in energy applications.

Original languageEnglish
Pages (from-to)46-50
Number of pages5
JournalJournal of Electroanalytical Chemistry
Volume819
Early online date8 Jul 2017
DOIs
Publication statusPublished - 15 Jun 2018

Keywords

  • Clathrates
  • Fuel cells
  • Gas diffusion
  • Hydrogen storage
  • Porous organic cages
  • Water splitting

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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  • Cite this

    Hernández-Ibáñez, N., Lee, J. S. M., Iniesta, J., Leguey, V. M., Briggs, M. E., Cooper, A. I., Madrid, E., & Marken, F. (2018). PH effects on molecular hydrogen storage in porous organic cages deposited onto platinum electrodes. Journal of Electroanalytical Chemistry, 819, 46-50. https://doi.org/10.1016/j.jelechem.2017.07.009