Cover Feature: Enhanced Water Management in PEMFCs: Perforated Catalyst Layer and Microporous Layers (ChemSusChem 11/2020). Issue 11 (20th May 2020)

• Record Type: Journal Article
• Authors: Mohseninia, Arezou; Kartouzian, Dena; Schlumberger, Robert; Markötter, Henning; Wilhelm, Florian; Scholta, Joachim; Manke, Ingo
• Is Part Of: ChemSusChem. Volume 13:Issue 11(2020)
• Page Start: 2804
• Page End: 2804
• Publication Date: 2020-05-20
• Subjects: catalyst layer -- fuel cells -- microporous layer -- neutron tomography -- water management; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202001210
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract : The Cover Feature shows the vital importance of water management in polymer electrolyte membrane fuel cells (PEMFCs): inadequate hydration leads to reduced proton conductivity whereas excess water hinders the access of reactant gases to the catalytic active sites. Structural properties of fuel cell materials, in particular porosity, strongly affect the liquid water content and distribution within the cells as illustrated by three schematics of porous materials. Operando high‐resolution neutron imaging was utilized to visualize the liquid water in PEMFCs. The curves represent the profile of water distribution within the cells. More information can be found in the Communication by A. Mohseninia et al. on page 2931 in Issue 11, 2020 (DOI: 10.1002/cssc.202000542 ).