DataVXACS Energy LettersPaper
journal article·2022-05-13Open access

Dispersing Agents Impact Performance of Protonated Phosphonic Acid High-Temperature Polymer Electrolyte Membrane Fuel Cells

Jiyoon Jung, Katie H. Lim, Sandip Maurya, Luis Delfin Manriquez, Vladimir Atanasov, Cheol-Hee Ahn, Seung Sang Hwang, Albert S. Lee, Yu Seung Kim

ACS Energy Letters· Volume 7· Issue 5
Publisher pageOpen full text
Source abstract

Abstract

The microstructure of ionomers plays a significant role in the performance of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Here, we establish direct correlations between the properties of dispersing agents and the microstructure of a protonated phosphonic acid ionomer. Most importantly, the formation of the porous structure of a protonated phosphonic acid ionomer depends on the pKa of the liquid media. Namely, the acid–base interaction between the charged polymer and dispersing agents determines the porosity in the ionomer thin films. The HT-PEMFC performance increases with the level of porosity of the ionomer, as the pores enable fast reactant gas accessibility. This study concludes the importance of the pKa of ionomers’ dispersing media for the HT-PEMFC performance.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storagePolymers

OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Membrane-based Ion Separation Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea

Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea

Materials Synthesis and Integrated Devices Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States

Institute of Chemical Process Engineering, University of Stuttgart, Boeblinger Straße 78, 70199 Stuttgart, Germany

Funding

Bundesministerium f?r Bildung und Forschung · National Research Foundation of Korea · Deutsche Forschungsgemeinschaft · Advanced Research Projects Agency - Energy · Korea Institute of Science and Technology

References (32)

Show source-provided references
1. 10.1016/0376-7388(96)00088-910.1016/0376-7388(96)00088-9 ↗
2. 10.1016/j.memsci.2008.11.02510.1016/j.memsci.2008.11.025 ↗
3. 10.1016/j.memsci.2013.10.01510.1016/j.memsci.2013.10.015 ↗
4. 10.1021/ma400735a10.1021/ma400735a ↗
5. 10.1021/mz300475g10.1021/mz300475g ↗
6. 10.1021/ma00234a00810.1021/ma00234a008 ↗
7. 10.1021/ma020960110.1021/ma0209601 ↗
8. 10.1039/C4CP00496E10.1039/C4CP00496E ↗
9. 10.1021/acs.chemrev.6b0015910.1021/acs.chemrev.6b00159 ↗
10. 10.1002/advs.20210028410.1002/advs.202100284 ↗
11. 10.1021/acsapm.0c0140510.1021/acsapm.0c01405 ↗
12. 10.1021/acs.jpcb.8b0649310.1021/acs.jpcb.8b06493 ↗
13. 10.1021/acs.macromol.9b0166310.1021/acs.macromol.9b01663 ↗
14. 10.1016/j.jpowsour.2014.01.09610.1016/j.jpowsour.2014.01.096 ↗
15. 10.1016/j.polymer.2009.01.06010.1016/j.polymer.2009.01.060 ↗
16. 10.1038/s41563-020-00841-z10.1038/s41563-020-00841-z ↗
17. 10.1038/s41560-021-00971-x10.1038/s41560-021-00971-x ↗
18. 10.1149/2.0151412jes10.1149/2.0151412jes ↗
19. 10.1021/acsami.8b0175110.1021/acsami.8b01751 ↗
20. 10.1039/C2TA01034H10.1039/C2TA01034H ↗
21. 10.1021/acsapm.0c0131810.1021/acsapm.0c01318 ↗
22. 10.1016/0022-1902(68)80417-810.1016/0022-1902(68)80417-8 ↗
23. 10.1039/a705491b10.1039/a705491b ↗
24. 10.1021/ac60316a03010.1021/ac60316a030 ↗
25. 10.1246/bcsj.44.287710.1246/bcsj.44.2877 ↗
26. 10.1021/ja01628a03110.1021/ja01628a031 ↗
27. Breant M. · C. R. Seances Acad. Sci., Ser. C · 1969 · 269 · 306
28. 10.1007/BF0091359910.1007/BF00913599 ↗
29. 10.1021/ma502538k10.1021/ma502538k ↗
30. 10.1039/c0cp00433b10.1039/c0cp00433b ↗
31. 10.1149/2.0751503jes10.1149/2.0751503jes ↗
32. 10.1016/j.jpowsour.2020.22925910.1016/j.jpowsour.2020.229259 ↗