Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Rensselaer Polytechnic Inst., Troy, NY (United States). Dept. of Chemistry and Chemical Biology
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Chemical and Biological Engineering and Center for Micro-Engineered Materials (CMEM)
Alkaline membrane fuel cells (AMFCs) show great potential as alternative energy conversion devices to acidic proton exchange membrane fuel cells (PEMFCs). Over the last decade, there has been significant progress in the development of alkaline-stable polyaromatic materials for membrane separators and ionomeric binders for AMFCs. However, the AMFC performance using polyaromatic ionomers is generally poor, ca. a peak power density of <400 mW cm-2. We report a rational design for polyaromatic ionomers which can minimize undesirable phenyl group interaction with hydrogen oxidation catalysts. The AMFC using a newly designed aryl ether-free poly(fluorene) ionomer exhibits a peak power density of 1.46 W cm-2, which is approaching that of Nafion-based PEMFCs. This study further discusses the remaining challenges of high-performing AMFCs.
Maurya, Sandip, et al. "Rational design of polyaromatic ionomers for alkaline membrane fuel cells with >1 W cm<sup>-2</sup> power density." Energy & Environmental Science, vol. 11, no. 11, Sep. 2018. https://doi.org/10.1039/C8EE02192A
Maurya, Sandip, Noh, Sangtaik, Matanovic, Ivana, et al., "Rational design of polyaromatic ionomers for alkaline membrane fuel cells with >1 W cm<sup>-2</sup> power density," Energy & Environmental Science 11, no. 11 (2018), https://doi.org/10.1039/C8EE02192A
@article{osti_1473818,
author = {Maurya, Sandip and Noh, Sangtaik and Matanovic, Ivana and Park, Eun Joo and Narvaez Villarrubia, Claudia and Martinez, Ulises and Han, Junyoung and Bae, Chulsung and Kim, Yu Seung},
title = {Rational design of polyaromatic ionomers for alkaline membrane fuel cells with >1 W cm<sup>-2</sup> power density},
annote = {Alkaline membrane fuel cells (AMFCs) show great potential as alternative energy conversion devices to acidic proton exchange membrane fuel cells (PEMFCs). Over the last decade, there has been significant progress in the development of alkaline-stable polyaromatic materials for membrane separators and ionomeric binders for AMFCs. However, the AMFC performance using polyaromatic ionomers is generally poor, ca. a peak power density of -2. We report a rational design for polyaromatic ionomers which can minimize undesirable phenyl group interaction with hydrogen oxidation catalysts. The AMFC using a newly designed aryl ether-free poly(fluorene) ionomer exhibits a peak power density of 1.46 W cm-2, which is approaching that of Nafion-based PEMFCs. This study further discusses the remaining challenges of high-performing AMFCs.},
doi = {10.1039/C8EE02192A},
url = {https://www.osti.gov/biblio/1473818},
journal = {Energy & Environmental Science},
issn = {ISSN 1754-5692},
number = {11},
volume = {11},
place = {United States},
publisher = {Royal Society of Chemistry},
year = {2018},
month = {09}}
USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division
Grant/Contract Number:
AC02-05CH11231; AC52-06NA25396
OSTI ID:
1473818
Alternate ID(s):
OSTI ID: 1473989
Report Number(s):
LA-UR-18-22341
Journal Information:
Energy & Environmental Science, Journal Name: Energy & Environmental Science Journal Issue: 11 Vol. 11; ISSN 1754-5692
