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Journal Article 9

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PEM fuel cell 2

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bipolar board 1

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A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack

Arunkumar JAYAKUMAR

Frontiers in Energy 2019, Volume 13, Issue 2, Pages 325-338 doi: 10.1007/s11708-019-0618-y

Abstract: Polymer electrolyte membrane (PEM) fuel cell is the most promising among the various types of fuel cellsapplications in numerous fields, the cost and durability are key barriers impeding the commercialization of PEM

Keywords： PEM fuel cell gas diffusion electrode(GDE) gas diffusion layer(GDL) membrane electrode assembly durability

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Recent advances in cathode electrocatalysts for PEM fuel cells

Junliang ZHANG

Frontiers in Energy 2011, Volume 5, Issue 2, Pages 137-148 doi: 10.1007/s11708-011-0153-y

Abstract: Great progress has been made in the past two decades in the development of the electrocatalysts for proton exchange membrane fuel cells (PEMFCs). This review article is focused on recent advances made in the kinetic-activity improvement on platinum- (Pt-) based cathode electrocatalysts for the oxygen reduction reaction (ORR). The origin of the limited ORR activity of Pt catalysts is discussed, followed by a review on the development of Pt alloy catalysts, Pt monolayer catalysts, and shape- and facet-controlled Pt-alloy nanocrystal catalysts. Mechanistic understanding is reviewed as well on the factors contributing to the enhanced ORR activity of these catalysts. Finally, future directions for PEMFC catalyst research are proposed.

Keywords： proton exchange membrane fuel cells (PEMFCs) cathode electrocatalysts platinum oxygen reduction reaction (ORR)

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Current challenge and perspective of PGM-free cathode catalysts for PEM fuel cells

Gang WU

Frontiers in Energy 2017, Volume 11, Issue 3, Pages 286-298 doi: 10.1007/s11708-017-0477-3

Abstract: To significantly reduce the cost of proton exchange membrane fuel cells, platinum-group metal (PGM)-free cathode catalysts are highly desirable. Current M-N-C (M: Fe, Co or Mn) catalysts are considered the most promising due to their encouraging performance. The challenge thus has been their stability under acidic conditions, which has hindered their use for any practical applications. In this review, based on the author’s research experience in the field for more than 10 years, current challenges and possible solutions to overcome these problems were discussed. The current Edisonian approach (i.e., trial and error) to developing PGM-free catalysts has been ineffective in achieving revolutionary breakthroughs. Novel synthesis techniques based on a more methodological approach will enable atomic control and allow us to achieve optimal electronic and geometric structures for active sites uniformly dispersed within the 3D architectures. Structural and chemical controlled precursors such as metal-organic frameworks are highly desirable for making catalysts with an increased density of active sites and strengthening local bonding structures among N, C and metals. Advanced electrochemical and physical characterization, such as electron microscopy and X-ray absorption spectroscopy should be combined with first principle density functional theory (DFT) calculations to fully elucidate the active site structures.

Keywords： oxygen reduction fuel cells cathode nonprecious metal catalysts carbon nanocomposites

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Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Frontiers in Energy 2021, Volume 15, Issue 2, Pages 460-472 doi: 10.1007/s11708-021-0733-4

Abstract: pore structure reduces the water back diffusion resistance from the CCL to proton exchange membrane (PEM), thus enhancing the water storage in PEM, while reducing the tortuosity in ionomer network of CCL is

Keywords： cold start energy conversion fuel cells mesoscale morphology tortuosity water management

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A linear quadratic regulator control of a stand-alone PEM fuel cell power plant

Amar BENAISSA, Boualaga RABHI, Ammar MOUSSI, Dahmani AISSA

Frontiers in Energy 2014, Volume 8, Issue 1, Pages 62-72 doi: 10.1007/s11708-013-0291-5

Abstract: output voltage at the load point versus load variation from a stand-alone proton exchange membrane (PEM

Keywords： modeling of proton exchange membrane fuel cell (PEMFC) controlling of PEMFC linear quadratic regulator (LQR) DC/DC converter DC/AC inverter

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Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

Frontiers in Energy 2017, Volume 11, Issue 3, Pages 326-333 doi: 10.1007/s11708-017-0489-z

Abstract: In this paper, a novel accelerated test method was proposed to analyze the durability of MEA, considering the actual operation of the fuel cell vehicle. The proposed method includes 7 working conditions: open circuit voltage (OCV), idling, rated output, overload, idling-rated cycle, idling-overload cycle, and OCV-idling cycle. The experimental results indicate that the proposed method can effectively destroy the MEA in a short time (165 h). Moreover, the degradation mechanism of MEA was analyzed by measuring the polarization curve, CV, SEM and TEM. This paper may provide a new research direction for improving the durability of fuel cell.

Keywords： polymer electrolyte membrane fuel cell accelerated life-time test load cycling test durability

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Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3, Pages 297-302 doi: 10.1007/s11705-011-1201-1

Abstract: A lattice model of the nanoscaled catalyst layer structure in proton exchange membrane fuel cells (PEMFC) was established by Monte Carlo method. The model takes into account all the four components in a typical PEMFC catalyst layer: platinum (Pt), carbon, ionomer and pore. The elemental voxels in the lattice were set fine enough so that each average sized Pt particulate in Pt/C catalyst can be represented. Catalyst utilization in the modeled catalyst layer was calculated by counting up the number of facets of Pt voxels where “three phase contact” are met. The effects of some factors, including porosity, ionomer content, Pt/C particle size and Pt weight percentage in the Pt/C catalyst, on catalyst utilization were investigated and discussed.

Keywords： catalyst layer PEM fuel cell lattice model Monte Carlo method catalyst utilization

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Research Progress in Proton Exchange Membrane Fuel Cell

Ren Xueyou

Strategic Study of CAE 2005, Volume 7, Issue 1, Pages 86-94

Abstract: Simultaneously, hydrogen storage technique, and some key technique including PEM, bipolar board, membrane

Keywords： FC PEM bipolar board membrane electrode electrocatalyst developing status

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Hydrogen Production by Water Electrolysis: Progress and Suggestions

Yu Hongmei, Shao Zhigang, Hou Ming, Yi Baolian, Duan Fangwei, Yang Yingxuan

Strategic Study of CAE 2021, Volume 23, Issue 2, Pages 146-152 doi: 10.15302/J-SSCAE-2021.02.020

Abstract: electrolysis technology is analyzed, including alkaline water electrolysis and proton exchange membrane (PEMbipolar plate surface treatment, and electrolytic bath structures helps optimize the performance of PEMThe PEM water electrolysis has high operating current density, low energy consumption, and high output

Keywords： hydrogen production by water electrolysis renewable energy proton exchange membrane (PEM) water electrolysis