Proton Conductive Channel Optimization in Methanol Resistive Hybrid Hyperbranched Polyamide Proton Exchange Membrane

Ma, Liying; Li, Jing; Xiong, Jie; Xu, Ge; Liu, Zhao; Cai, Weiwei

doi:10.3390/polym9120703

Cited by 8 publications

(5 citation statements)

References 39 publications

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“…The cost of a membrane electrode is about more than 50% of the total cost of the cell, in which the catalyst is the main source of membrane electrode cost, while the fuel cell life issue mainly depends on the material life and stability of the membrane electrode. The following three parts: catalyst, ionomer, and catalytic layer structure design will be investigated and analyzed for the latest research on proton exchange membrane fuel cells [7].…”

Section: Current Research Status Of Proton Exchange Membrane Fuel Cellsmentioning

confidence: 99%

Study on the Application of Hydrogen Fuel Cells in Passenge Cars and Prospects

Hou,

Zhang,

Zhou

2023

E3S Web Conf.

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The increasing demand for clean and sustainable energy sources has driven extensive research and development in the field of hydrogen fuel cell technology. This article provides an in-depth analysis of the advancements in hydrogen fuel cell technology and its potential application in passenger cars as a widely available, clean, and efficient energy source. By reviewing the current status of hydrogen fuel cells and national policies governing their implementation, this study aims to shed light on the development characteristics of China's hydrogen fuel cell industry, while also drawing comparisons with international hydrogen fuel cell policies and applications. Additionally, the article evaluates the performance of existing hydrogen fuel cell passenger cars in the market and proposes the application of future cutting-edge technologies to further enhance their capabilities. Through meticulous paraphrasing and enrichment, this scholarly work offers a comprehensive overview of hydrogen fuel cell technology, delves into the intricate landscape of the industry, and explores the promising prospects for its continued advancement. By encompassing a wide array of aspects related to hydrogen fuel cell technology, this article contributes to the academic discourse surrounding sustainable and efficient energy solutions for the transportation sector.

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Section: Current Research Status Of Proton Exchange Membrane Fuel Cellsmentioning

confidence: 99%

Study on the Application of Hydrogen Fuel Cells in Passenge Cars and Prospects

Hou,

Zhang,

Zhou

2023

E3S Web Conf.

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“…In the future, they will play a major role in improving energy efficiency and reducing fossil fuels. In DMFC components, proton exchange membranes (PEMs) act as proton-conductive mediums for protons as well as barriers for the passage of electrons and fuels between the anode and cathode components [ 9 , 10 , 11 , 12 ]. PEM is one of the key components which can directly affect the performance of DMFCs.…”

Section: Introductionmentioning

confidence: 99%

Precise Control of the Preparation of Proton Exchange Membranes via Direct Electrostatic Deposition

et al. 2022

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In this work, we reported a novel preparation method for a proton exchange membrane (PEM) named, the direct electrostatic deposition method. In theory, any required thickness and size of PEM can be precisely controlled via this method. By direct electrostatic spraying of Nafion solution containing amino modified SiO2 nanoparticles onto a metal collector, a hybrid membrane of 30 μm thickness was fabricated. The DMFC assembled with a prepared ultrathin membrane showed a maximum power density of 124.01 mW/cm2 at 40 °C and 100% RH, which was 95.29% higher than that of Nafion. This membrane formation method provides potential benefits for the preparation of ultrathin PEMs.

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“…to electrical energy. − Among fuel cells, the direct methanol fuel cell (DMFC) has attracted extensive attention because of the high specific energy density of methanol, plentiful methanol sources, and simplified system construction. − As one of the key components of DMFCs, the proton exchange membrane (PEM) is responsible for transferring protons and preventing fuels permeating between the two electrodes during the DMFC operation process. − The commercially used Nafion membranes possess many outstanding advantages, like high proton conductivity, outstanding mechanical strength, and excellent chemical and dimensional stability. − However, the serious methanol permeation of Nafion membranes limits them to applications only in DMFCs fed with low concentration methanol solutions, almost lower than 5 M, which results in at least 4 times lower power output than the DMFCs offered by neat methanol (24.8 M). − The most effective way to develop high concentration DMFCs is to replace Nafion membranes by novel high methanol-permeation resistant PEMs. In the past several decades, several alternatives such as sulfonated polyimide (SPI), , sulfonated polyamide (SPA), − sulfonated poly(arylene ether) (SPAE), − and sulfonated poly(ether ether ketone) (SPEEK) , have been widely investigated.…”

Section: Introductionmentioning

confidence: 99%

Semi-Interpenetrating Polymer Network Membranes from SPEEK and BPPO for High Concentration DMFC

Liu

Zhang

Deng

et al. 2018

ACS Appl. Energy Mater.

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In the present work, semi-interpenetrating polymer networks (semi-IPNs) fabricated by the in situ synthesis of crosslinking networks between diamine cross-linkers and bromomethylated poly(phenylene oxide) (BPPO) are used toward sulfonated poly(ether ether ketone) (SPEEK) membrane applications for high concentration direct methanol fuel cells (DMFCs). Four kinds of diamine cross-linkers with different structures of hydrophobic flexible, hydrophilic flexible, hydrophobic rigid/ bulky, and hydrophilic rigid/bulky are applied to construct the semi-IPNs. The influences of cross-linkers on the key properties, such as phase separation, water uptake, proton conductivity, and methanol permeability, as well as cell performances, are systematically investigated. The results indicate that fabricating semi-IPNs is an attentive approach to improve the properties of SPEEK. The hydrophobic rigid/bulky fluorine cross-linker is the most effective to reduce methanol permeability, giving rise to the highest power output of the high concentration DMFC. In particular, by analyzing the correlation of cell performances, proton conductivity, and methanol permeability, we note that methanol permeability is more important than proton conductivity for high concentration DMFCs.

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Proton Conductive Channel Optimization in Methanol Resistive Hybrid Hyperbranched Polyamide Proton Exchange Membrane

Cited by 8 publications

References 39 publications

Study on the Application of Hydrogen Fuel Cells in Passenge Cars and Prospects

Study on the Application of Hydrogen Fuel Cells in Passenge Cars and Prospects

Precise Control of the Preparation of Proton Exchange Membranes via Direct Electrostatic Deposition

Semi-Interpenetrating Polymer Network Membranes from SPEEK and BPPO for High Concentration DMFC

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