High-performance fuel cells using Nafion composite membranes with alignment of sulfonated graphene oxides induced by a strong magnetic field

Liu, Lei; Li, Xu; Liu, Zhe; Zhang, Shengjie; Qian, Libing; Chen, Zhiyuan; Li, Jingjing; Fang, Pengfei; He, Chunqing

doi:10.1016/j.memsci.2022.120516

Cited by 27 publications

(15 citation statements)

References 45 publications

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“…Moreover, the high durability of the membrane is attributed to the fact that the magnetic field effect promotes the formation of a more stable paramagnetic PWA-CP4VP complex [ 417 ]. The use of strong magnetic fields was also employed by L. Liu and co-workers to prepare magnetized Nafion composite membranes with sulfonated graphene oxides (SGOs) [ 423 ]. The group observed that magnetizing just 1% in weight of SGOs was enough to achieve superior performance for proton transport (~37% of enhancement) in comparison with non-magnetized membranes in single fuel cell tests (T = 333 K).…”

Section: Basics Of Fuel Cellsmentioning

confidence: 99%

Review on Magnetism in Catalysis: From Theory to PEMFC Applications of 3d Metal Pt-Based Alloys

Biz

Gracia²,

Fianchini³

2022

IJMS

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The relationship between magnetism and catalysis has been an important topic since the mid-20th century. At present time, the scientific community is well aware that a full comprehension of this relationship is required to face modern challenges, such as the need for clean energy technology. The successful use of (para-)magnetic materials has already been corroborated in catalytic processes, such as hydrogenation, Fenton reaction and ammonia synthesis. These catalysts typically contain transition metals from the first to the third row and are affected by the presence of an external magnetic field. Nowadays, it appears that the most promising approach to reach the goal of a more sustainable future is via ferromagnetic conducting catalysts containing open-shell metals (i.e., Fe, Co and Ni) with extra stabilization coming from the presence of an external magnetic field. However, understanding how intrinsic and extrinsic magnetic features are related to catalysis is still a complex task, especially when catalytic performances are improved by these magnetic phenomena. In the present review, we introduce the relationship between magnetism and catalysis and outline its importance in the production of clean energy, by describing the representative case of 3d metal Pt-based alloys, which are extensively investigated and exploited in PEM fuel cells.

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Section: Basics Of Fuel Cellsmentioning

confidence: 99%

Review on Magnetism in Catalysis: From Theory to PEMFC Applications of 3d Metal Pt-Based Alloys

Biz

Gracia²,

Fianchini³

2022

IJMS

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“…Nanoparticles require the application of electric 48,84,85 or magnetic fields [86][87][88][89] in order to construct long-range ordered proton transport channels. Their mechanical characteristics and proton conductivity will be reduced due to their complex procedure and agglomeration issues, which will impair their performance.…”

Section: Lamellamentioning

confidence: 99%

The advances development of proton exchange membrane with high proton conductivity and balanced stability in fuel cells

Wei

Sui

Meng

et al. 2023

J of Applied Polymer Sci

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In the proton exchange membrane fuel cell, proton exchange membrane (PEM) serves as both the main conductor of protons and the fuel‐blocking membrane. Thus, high proton conductivity and excellent stability are expected for PEMs at the same time. According to chemical structure, this review divides PEM into three groups. Recently, high‐performance PEM has been made possible by controlling chemical structure, organic–inorganic hybrid composite membranes, and nanofiber composite membranes. One of them, nanofiber composite membranes, is distinguished by long‐range order and is capable of achieving both strong proton conductivity with exceptional stability. The high‐performance PEM has been accomplished by the presence of an acid‐rich layer, acid–base interaction, and proton transport channel in PEMs are also summarized in this paper. We believe that our discussion will help the researcher create high‐performance PEM and pave the way for further developments in the field of energy materials as a whole.

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“…Due to it being a powerful tool in microstructure characterization, PALS was widely used in the investigation for GPN in recent years [ 41 ], including the GPN used for nanofiltration membranes [ 42 , 43 ], gas barrier [ 44 , 45 ], gas separation [ 46 , 47 ], fuel cells [ 48 ], supercapacitors [ 49 ]. The correlation of structure and property for GPN is also focused on the f v and β , which can be obtained with the determination of τ 3 and I 2 .…”

Section: Application Of Pals In Structure-property Correlation For Gpnmentioning

confidence: 99%

Application Progress of PALS in the Correlation of Structure and Properties for Graphene/Polymer Nanocomposites

et al. 2022

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Giving a deep insight into the microstructure, and realizing the correlation between microstructure and properties is very important to the precise construction of high-performance graphene/polymer nanocomposites (GPN). For the promising application in microstructure characterization, much attention has been focused on the effective technique of positron annihilation lifetime spectroscopy (PALS). Based on the introduction of the basic principle, this review summarized the application progress of PALS in the correlation of microstructure and properties for GPN, especially for the characterization of free volume and interfacial interaction, and the correlation of these microstructures and properties.

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High-performance fuel cells using Nafion composite membranes with alignment of sulfonated graphene oxides induced by a strong magnetic field

Cited by 27 publications

References 45 publications

Review on Magnetism in Catalysis: From Theory to PEMFC Applications of 3d Metal Pt-Based Alloys

Review on Magnetism in Catalysis: From Theory to PEMFC Applications of 3d Metal Pt-Based Alloys

The advances development of proton exchange membrane with high proton conductivity and balanced stability in fuel cells

Application Progress of PALS in the Correlation of Structure and Properties for Graphene/Polymer Nanocomposites

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