Highly enhanced proton conductivity of single-step-functionalized graphene oxide/nafion electrolyte membrane towards improved hydrogen fuel cell performance

被引：22

作者：

Barik, Bapun ^{[1
]}

Yun, Yejin ^{[1
]}

Kumar, Aniket ^{[1
]}

Bae, Hohan ^{[1
]}

Namgung, Yeon ^{[1
]}

Park, Jun-Young ^{[2
]}

Song, Sun-Ju ^{[1
]}

机构：

[1] Chonnam Natl Univ, Sch Mat Sci & Engn, Ion Lab, Gwangju 61186, South Korea

[2] Sejong Univ, Dept Nanotechnol & Adv Mat Engn, HMC, Seoul 05006, South Korea

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 29期

基金：

新加坡国家研究基金会;

关键词：

Nafion-based proton exchange; membrane; Single-step-phosphorylation; Graphene oxide; Proton conductivity; Hydrogen fuel cell; HIGH-TEMPERATURE; LOW HUMIDITY; COMPOSITE MEMBRANE; CARBON NANOTUBE; OXIDE; SILICA; DEGRADATION; ADSORPTION; STABILITY; MATRIX;

D O I：

10.1016/j.ijhydene.2022.12.137

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Acidic group functionalized graphene oxide (GO) as a filler to the state-of-art Nafion electrolytes are regarded as potential materials towards next-generation fuel cell application. However, the tedious synthesis process for GO functionalization, and aggravated chemical durability at high temperatures demands the scientific community to design suitable Nafion-based functionalized GO electrolytes with superior proton conductivity and power density at actual fuel cell conditions i.e., 80 degrees C and 100% relative humidity (RH). Herein, a potential single-step-phosphorylated graphene oxide (sPGO) modified Nafion (sPGO/NF) is introduced to simultaneously multifold the proton conductivity, chemical durability, and power density of Nafion. Under actual fuel cell conditions, the sPGO/NF exhibits maximum proton conductivity (0.306 Scm(-1)) which is 1.7-fold and 1.6-fold higher than that of rNF and GO/NF, respectively. Moreover, sPGO/NF achieves the maximum power density of 0.652 Wcm(-2) (80 degrees C, 100% RH), much higher than the rNF (0.51 Wcm(-2)) and GO/NF (0.53 Wcm(-2)) at same condition. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11029 / 11044

页数：16

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