Effects of various operating conditions and optimal ionomer-gradient distribution on temperature-driven water transport in cathode catalyst layer of PEMFC

Y Xu, G Chang, R Fan, T Cai - Chemical Engineering Journal, 2023 - Elsevier
Temperature distribution affects water transport by phase-change-induced (PCI) flow in the
cathode catalyst layer, where water generates and heat releases. To elucidate the role of …

Investigating temperature-driven water transport in cathode gas diffusion media of PEMFC with a non-isothermal, two-phase model

Y Xu, R Fan, G Chang, S Xu, T Cai - Energy Conversion and Management, 2021 - Elsevier
Temperature distribution affects water transport in the porous medium layer of proton
exchange membrane fuel cell (PEMFC) by phase-change-induced (PCI) flow. Thus, it is …

Pore-scale study of effects of relative humidity on reactive transport processes in catalyst layers in PEMFC

R Zhang, T Min, L Chen, H Li, J Yan, WQ Tao - Applied Energy, 2022 - Elsevier
High surface area carbon (HSC) particles can be adopted to increase the specific surface
area of catalyst layer (CL) in proton exchange membrane fuel cells. Relative humidity (RH) …

EIS and local resolved current density distribution analysis on effects of MPL on PEMFC performance at varied humidification

J Shan, R Lin, X Chen, X Diao - International Journal of Heat and Mass …, 2018 - Elsevier
The performance of two MEA samples with different kinds of gas diffusion layer (with and
without micro-porous layer) were investigated at different humidification conditions …

Multi-objective optimization of graded catalyst layer to improve performance and current density uniformity of a PEMFC

R Fan, G Chang, Y Xu, J Xu - Energy, 2023 - Elsevier
The optimal use of compositions (platinum and ionomer) in cathode catalyst layers (CCLs) is
essential to enhance the performance and improve the current density uniformity of proton …

A 3D model of PEMFC considering detailed multiphase flow and anisotropic transport properties

G Zhang, L Fan, J Sun, K Jiao - International Journal of Heat and Mass …, 2017 - Elsevier
A comprehensive 3D (three-dimensional) multiphase model of PEMFC (proton exchange
membrane fuel cell) is developed, in which the gas and liquid two-phase flow in channel …

Lung-inspired hybrid flow field to enhance PEMFC performance: a case of dual optimization by response surface and artificial intelligence

G Lu, W Fan, D Lu, T Zhao, Q Wu, M Liu, Z Liu - Applied Energy, 2024 - Elsevier
The design and optimization of flow field play a crucial role in the development of proton
exchange membrane fuel cells (PEMFC). This study presents a modular tri-layer lung …

Effects of basic gas diffusion layer components on PEMFC performance with capillary pressure gradient

J Sim, M Kang, K Min - International Journal of Hydrogen Energy, 2021 - Elsevier
The gas diffusion layer (GDL) is composed of a substrate and a micro-porous layer (MPL),
and is treated with polytetrafluoroethylene (PTFE) to promote water discharge. Additionally …

Enhancing water transport performance of gas diffusion layers through coupling manipulation of pore structure and hydrophobicity

XL Wang, ZG Qu, T Lai, GF Ren, WK Wang - Journal of Power Sources, 2022 - Elsevier
The water discharge capacity of gas diffusion layer (GDL) is a key factor for improving the
performance of proton exchange membrane fuel cells (PEMFCs) at high current density. In …

Collective enhancement in hydrophobicity and electrical conductivity of gas diffusion layer and the electrochemical performance of PEMFCs

XL Wang, ZG Qu, GF Ren - Journal of Power Sources, 2023 - Elsevier
Gas diffusion layer (GDL) with optimized water management capacity facilitates the
electrochemical performance of proton exchange membrane fuel cells (PEMFCs). However …