Portable proton exchange membrane fuel cell using polyoxometalates as multi-functional hydrogen carrier

Yuanting Shen, Xiaohui Yan, Liang An, Shuiyun Shen, Lu An, Junliang Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Proton exchange membrane fuel cell (PEMFC) is an ideal energy-conversion technology for portable, motile as well as stationary applications. However, the use as a portable power source is still hindered by the stringent requirements for hydrogen storage. Herein, we propose a PEMFC system using hydrogenable polyoxometalate (POM) solution as hydrogen carrier that enables the whole system to work under atmospheric temperature and pressure. A proof-of-concept air-breathing PEMFC is constructed and three typical POMs are tested, the corresponding results demonstrate good cell performance and stability. Another impressive result shows that the hydrogen carrier, POMs, can be hydrogenated by multiple hydrogen sources such as H2, H2O and NaBH4 through both electrochemical and chemical ways. The newly designed system obtained a peak power density of 51 mW cm−2, making the real-world application of portable PEMFC possible.

Original languageEnglish
Article number118781
JournalApplied Energy
Volume313
DOIs
Publication statusPublished - 1 May 2022

Keywords

  • Air-breathing
  • Fuel cells
  • Hydrogen storage
  • Polyoxometalates
  • Portable power source

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering
  • Energy(all)
  • Management, Monitoring, Policy and Law

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