Project Info

Carbon Dioxide Concentration using an AEM Fuel Cell

Andrew Herring

Project Goals and Description:

Anion Exchange Membrane (AEM) fuel cells have been shown to strongly pump carbon dioxide from air.  This lead to the possibility of designing an electrochemical  carbon dioxide pump based on an AEM fuel cell.  Ion this project will optimize an AEM fuel cell for CO2 pumping.  We will This is part  the relative carbonate and bicarbonate anion transport and optimize the ionomer and catalyst ninth fuel cell to selectively and efficiently pump CO2.

More Information:

Grand Challenge: Develop carbon sequestration methods.
The work with this membranes is described in:
  1. “A Polyethylene-based Triblock Copolymer Anion Exchange Membrane with High Conductivity and Practical Mechanical Properties.” N.C. Buggy, Y. Du, M.-C. Kuo, K.A. Ahrens,S. Wilkinson, S. Seifert, E.B. Coughlin,* and A.M. Herring*, ACS Applied Polymer Materials, 2020, 2, 1294 – 1303.
  2. “Investigating Quaternary Ammonium Interactions with Silver Nanoparticles: Dependence of Triblock Copolymer Crystallinity on Cation Identity.” N.C. Buggy, Y. Du, M.-C. Kuo, R.J. Gasvoda, S. Seifert, S. Agarwal, E.B. Coughlin, and A.M. Herring*, ACS Applied Polymer Materials, 2020, 2, 4914 – 4923.
  3. “Designing Anion Exchange Ionomers with Oriented Nanoscale Phase Separation at a Silver Interface.” C. Buggy, Y. Du, M.-C. Kuo, S. Seifert, E.B. Coughlin, A.M. Herring,* J.Phys.Chem. C, 2021, 125, 20592 – 20605.
  4. “Evaluating the Effect of Ionomer Chemical Composition in Silver-Ionomer Catalyst Inks toward the Oxygen Evolution Reaction by Half-Cell Measurements and Water Electrolysis.” N.C. Buggy, I. Wu, Y. Du, R. Ghosh, M.-C. Kuo, M.S. Ezell, J.M. Crawford, S. Seifert, M.A. Carreon, E.B. Coughlin, A.M. Herring,* Electrochimica Acta., 2022, 412, 140124.

Primary Contacts:

Andrew Herring,, Ivy Wu,

Student Preparation


Sophomore science and engineering class, basic laboratory skills.




Uisng electrochemical measurements to measure the conductivity of various ions in AEMs Fabrication and testing of membrane electrode assemblies Fabrications of 5 cm2 single cell devices and their testing.


Biweekly group meetings, closely working with graduate student.


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