A Self-Basifying Direct Formate Fuel Cell

  • Author: Angewandte Chemie International Edition
  • Published Date: 21 June 2017
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: A Self-Basifying Direct Formate Fuel Cell

Alkaline sodium-ion conducting direct liquid fuel cells convert chemical energy directly into electricity with high energy-conversion efficiency and no emissions. However, current technology requires addition of base to the fuel solution to achieve an alkali environment with adequate charge carrier properties.


Yinshi Li, Xi’an Jiaotong University, Shaanxi, China, and colleagues have developed a sodium-ion conducting direct formate fuel cell (Na-DFFC), which converts the chemical energy stored in formate into electricity without the need for added base. Conductivity is achieved with hydroxide and sodium ions produced from hydrolyzed sodium formate, while sodium hydroxide byproduct is produced at the cathode.

The Na-DFFC produces a 33 mW cm–2 peak power density at 60 ºC and operates continuously for 13 hours at a constant 10 mA current. Contrary to the conventional chlor-alkali process, the Na-DFFC generates electricity and base simultaneously.


The team suggests that the formate fuel used to power the fuel cell may be synthesized photocatalytically from atmospheric carbon dioxide; thereby producing electricity from existing chemical feedstocks without environmental pollution.


 

Article Views: 1907

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH