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Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid).
Author:	Shang, Zhihao.
Published:	Ann Arbor : ProQuest Dissertations & Theses, 2022
Description:	104 p.
Notes:	Source: Dissertations Abstracts International, Volume: 84-05, Section: B.
Notes:	Advisor: Pintauro, Peter N.
Contained By:	Dissertations Abstracts International84-05B.
Subject:	Chemical engineering.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30192826
ISBN:	9798352947029

Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid).
Shang, Zhihao.

Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid). - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 104 p.

Source: Dissertations Abstracts International, Volume: 84-05, Section: B.

Thesis (Ph.D.)--Vanderbilt University, 2022.

This item must not be sold to any third party vendors.

Typically, the proton conductivity of a polymer electrolyte membrane (PEM) decreases when the relative humidity (RH) of the environment decreases or the temperature increases. This drawback significantly complicates the design of PEM fuel cells. Crosslinkable poly(phenylene sulfonic acid) (cPPSA) copolymer could overcome the above limitation due to its superior proton conductivity even at low RH. Unfortunately, cPPSA has poor mechanical characteristics, which precludes its direct application as a fuel cell membrane material.In the present work, three approaches to reinforce cPPSA were investigated: (i) Pore-filling of electrospun PPSU mats; (ii) Pore filling of commercial expanded PTFE films; and (iii) Blending with a 3M PFSA ionomer. The best results were obtained with cPPSA-ePTFE composite membranes, which showed excellent proton conductivity - 3-4 times greater than that of Nafion® reference in the 40-90 %RH range at 80 ℃, and a high tensile strength exceed 20 MPa at room temperature and 50 %RH.Membrane-electrode assemblies fabricated with these membranes and commercial Pt/C-based electrodes, and tested in hydrogen fuel cell with air and oxygen, at 80 °C. Excellent power output of 1W/cm2 (PMAX) was generated in H2/Air fuel cell at 80 °C and 100 kPa backpressure, with only 15% power reduction, when RH was decreased from 100 %RH to 30 %RH.

ISBN: 9798352947029Subjects--Topical Terms:

206267
Chemical engineering.
Subjects--Index Terms:

PEM

Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid).
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100 1 $a Shang, Zhihao. $3 942658
245 1 0 $a Development and Testing of Fuel Cell Membranes from Reinforced Poly(Phenylene Sulfonic Acid).
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 104 p.
500 $a Source: Dissertations Abstracts International, Volume: 84-05, Section: B.
500 $a Advisor: Pintauro, Peter N.
502 $a Thesis (Ph.D.)--Vanderbilt University, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Typically, the proton conductivity of a polymer electrolyte membrane (PEM) decreases when the relative humidity (RH) of the environment decreases or the temperature increases. This drawback significantly complicates the design of PEM fuel cells. Crosslinkable poly(phenylene sulfonic acid) (cPPSA) copolymer could overcome the above limitation due to its superior proton conductivity even at low RH. Unfortunately, cPPSA has poor mechanical characteristics, which precludes its direct application as a fuel cell membrane material.In the present work, three approaches to reinforce cPPSA were investigated: (i) Pore-filling of electrospun PPSU mats; (ii) Pore filling of commercial expanded PTFE films; and (iii) Blending with a 3M PFSA ionomer. The best results were obtained with cPPSA-ePTFE composite membranes, which showed excellent proton conductivity - 3-4 times greater than that of Nafion® reference in the 40-90 %RH range at 80 ℃, and a high tensile strength exceed 20 MPa at room temperature and 50 %RH.Membrane-electrode assemblies fabricated with these membranes and commercial Pt/C-based electrodes, and tested in hydrogen fuel cell with air and oxygen, at 80 °C. Excellent power output of 1W/cm2 (PMAX) was generated in H2/Air fuel cell at 80 °C and 100 kPa backpressure, with only 15% power reduction, when RH was decreased from 100 %RH to 30 %RH.
590 $a School code: 0242.
650 4 $a Chemical engineering. $3 206267
653 $a PEM
653 $a Fuel cell
653 $a Ionomer
653 $a Sulfonated polyphenylene
690 $a 0542
710 2 $a Vanderbilt University. $3 795519
773 0 $t Dissertations Abstracts International $g 84-05B.
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791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30192826