NMR analysis of phosphoric acid distribution in porous fuel cell catalysts

Zhang E, Fulik N, Zhang H, Bevilacqua N, Zeis R, Xu F, Brunner E, Kaskel S (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Chemical Communications Royal Society of Chemistry

Book Volume: 57

Pages Range: 2547-2550

Journal Issue: 20

DOI: 10.1039/d0cc07738k

Abstract

Understanding the interaction of phosphoric acid and porous electrocatalysts is of vital importance for a rational design of high performance phosphoric acid based fuel cells on a molecular level. We demonstrate for the first time that NMR spectroscopy can be used for elucidating the preferred distribution sites of phosphoric acid in various nanoporous carbons. A pore size dependent negative chemical shift of31P is observed, serving as a distinct signature of pore occupation, and applied for analysing a commercial catalyst (Pt@Vulcan) as a practical application.

Authors with CRIS profile

Roswitha Zeis

Involved external institutions

Technische Universität Dresden DE Germany (DE) Karlsruhe Institute of Technology (KIT) DE Germany (DE)

How to cite

APA:

Zhang, E., Fulik, N., Zhang, H., Bevilacqua, N., Zeis, R., Xu, F.,... Kaskel, S. (2021). NMR analysis of phosphoric acid distribution in porous fuel cell catalysts. Chemical Communications, 57(20), 2547-2550. https://doi.org/10.1039/d0cc07738k

MLA:

Zhang, En, et al. "NMR analysis of phosphoric acid distribution in porous fuel cell catalysts." Chemical Communications 57.20 (2021): 2547-2550.

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