Experimental validation for enhancement of PEMFC cold start performance: Based on the optimization of micro porous layer

Lin, Rui; Zhong, Di; Lan, Shunbo; Guo, Rong; Ma, Yunyang; Cai, Xin

doi:10.1016/j.apenergy.2021.117306

Cited by 31 publications

(11 citation statements)

References 35 publications

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“…The current density distribution was monitored by segmented cell technology by Rui Lin’s group by putting the segmented cell on the anode side. The segmented cell includes 49 integrated current detectors …”

Section: Methodsmentioning

confidence: 99%

Reducing Irreversible Performance Losses via a Graphene Oxide Buffer Layer for Proton-Exchange Membrane Fuel Cells

Wang

Lin

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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Alloy catalysts are promising for proton-exchange membrane fuel cells but are difficult to realize high-durability operation because the dissolution of Pt–M (M = Co, Ni, etc.) metals inevitably accelerates irreversible performance degradation. Here, we propose a buffer layer solution that inserts a trace layer of a graphene oxide (GO) film between the PEM and the alloy catalyst layer to mitigate the poison effect. To distinguish the irreversible and reversible losses, two typical recovery procedures (shutdown and JRC-based protocols) being part of a fuel cell dynamic load cycle durability test are characterized. The electrochemical evaluation reveals that GO-1 μg/cm2 enables a higher initial performance and stability. Furthermore, the GO buffer layer design allows the realization of membrane electrode assemblies with a highly homogeneous current density distribution and a low accessible mass transport resistance. Thanks to the ion sieving effect in the GO buffer layer, high anti-poisoning and stability during the accelerated stress test process are ensured.

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Section: Methodsmentioning

confidence: 99%

Reducing Irreversible Performance Losses via a Graphene Oxide Buffer Layer for Proton-Exchange Membrane Fuel Cells

Wang

Lin

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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“…Membrane electrode assembly (MEA) is the core component of PEMFC, which greatly affects the performance and service life of cells. Therefore, a significant amount of research has been conducted on it, as well as how to improve it [23][24][25][26]. Nafion is the base of MEA and, due to the hydrophobic fluorocarbon backbones of Nafion, it has excellent thermal and chemical stability and owing to the -SO 3 H as the hydrophilic domains, the membrane absorbs water easily.…”

Section: Methodsmentioning

confidence: 99%

Research on Energy and Economics of Self-Made Catalyst-Coated Membrane for Fuel Cell under Different Oxidants

Bai

Hsieh

2022

Membranes

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In the context of global warming, clean energy represented by fuel cells has ushered in a window period of rapid development; however, most research mainly focuses on the improvement of catalysts and performance, and there is very little research on the performance differences and energy consumption between different oxidants. In this paper, the performance differences of fuel cells with different oxidants (air and oxygen) are studied using a self-made CCM, and the economic aspect is calculated from the perspective of power improvement and energy consumption. Firstly, the CCM and GDL are prepared, and the hydrophilicity and hydrophobicity of GDL are realized by the addition of PTFE and SiO2, respectively. Secondly, through the experiment, it is found that the fuel cell can achieve the best comprehensive performance at 60 °C, and the use of oxygen can achieve the highest power increase, 117.1%, compared with air. Finally, from the perspective of economics, after excluding the power consumed for preparing oxygen, the use of oxygen as an oxidant still achieved a net power increase of 29.512%. The research in this paper clearly shows that using oxygen instead of air can greatly improve performance and is good economically, which makes it a useful exploration for the research of fuel cells.

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“…19–23 In addition, recent years have witnessed the effective application of SFCs in the field of PEM fuel cell cold start. 24,25…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21][22][23] In addition, recent years have witnessed the effective application of SFCs in the eld of PEM fuel cell cold start. 24,25 Although several researchers have conducted extensive research on PEM fuel cells using SFCs, it is still necessary to further understand the underlying relationships between the parameters measured through experiments and the water states in fuel cells and to classify the cold-start modes in detail for guiding the design of cold start strategies. In this study, we investigated the current density/temperature distribution characteristics of a rectangular PEM fuel cell with an activation area of 108 cm 2 using an SFC during the cold start processes under different operating conditions in the CC or CV mode.…”

Section: Introductionmentioning

confidence: 99%

Cold start mode classification based on the water state for proton exchange membrane fuel cells

et al. 2022

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Experimental validation for enhancement of PEMFC cold start performance: Based on the optimization of micro porous layer

Cited by 31 publications

References 35 publications

Reducing Irreversible Performance Losses via a Graphene Oxide Buffer Layer for Proton-Exchange Membrane Fuel Cells

Reducing Irreversible Performance Losses via a Graphene Oxide Buffer Layer for Proton-Exchange Membrane Fuel Cells

Research on Energy and Economics of Self-Made Catalyst-Coated Membrane for Fuel Cell under Different Oxidants

Cold start mode classification based on the water state for proton exchange membrane fuel cells

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