Light-induced switchable adsorption in azobenzene- and stilbene-based porous materials

Hannah F. Drake, Gregory S. Day, Zhifeng Xiao, Hong Cai Zhou, Matthew R. Ryder

Research output: Contribution to journalReview articlepeer-review

16 Scopus citations

Abstract

Despite the long history of porous materials as adsorbates, fundamental limitations remain regarding the efficient capture and release of the gas molecules, with the working capacity of the material often overlooked. In microporous materials, the uptake is dominated by low-pressure adsorption, with much of this being at pressures below the minimum working threshold for many gas utilization processes. Thus, research has focused on several advances in porous materials, including photoresponsive organic units for light-induced switchable adsorption. This process utilizes light to trigger structural or electronic changes, alter the gas uptake, and change the working capacity. While a relatively recent development, there is a significant body of research regarding the use of light to control gas storage performance.

Original languageEnglish
Pages (from-to)32-47
Number of pages16
JournalTrends in Chemistry
Volume4
Issue number1
DOIs
StatePublished - Jan 2022

Funding

H.F.D., G.S.D., and M.R.R. acknowledge the US Department of Energy (DOE) Office of Science Graduate Student Research (SCGSR) program for funding. The SCGSR program is administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE under contract number DE-SC0014664. M.R.R. also acknowledges the DOE Office of Science (Basic Energy Sciences) and the DOE Office of Fossil Energy and Carbon Management for additional research funding.

Keywords

  • azobenzene
  • gas storage and separation
  • photoresponsive behavior
  • porous materials
  • stillbene
  • switchable adsorption

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