Recent progress in the use of electrochemical impedance spectroscopy for the measurement, monitoring, diagnosis and optimization of proton exchange membrane …

Z Tang, QA Huang, YJ Wang, F Zhang, W Li, A Li… - Journal of Power …, 2020 - Elsevier
The performance of proton exchange membrane fuel cells (PEMFCs), including reaction
activity and durability, requires further improvement before large-scale commercialization …

AC impedance technique in PEM fuel cell diagnosis—A review

X Yuan, H Wang, JC Sun, J Zhang - International Journal of Hydrogen …, 2007 - Elsevier
Because the AC impedance technique, also known as electrochemical impedance
spectroscopy (EIS), is being utilized by more and more researchers in proton exchange …

Soft-template synthesis of mesoporous non-precious metal catalyst with Fe-Nx/C active sites for oxygen reduction reaction in fuel cells

Y Mun, MJ Kim, SA Park, E Lee, Y Ye, S Lee… - Applied catalysis b …, 2018 - Elsevier
We synthesized ordered mesoporous Fe/N/C with highly active Fe-N x/C sites denoted as m-
FePhen-C as a non-precious metal catalyst (NPMC) for the oxygen reduction reaction in fuel …

PEM fuel cell open circuit voltage (OCV) in the temperature range of 23 C to 120 C

J Zhang, Y Tang, C Song, J Zhang, H Wang - Journal of power sources, 2006 - Elsevier
Open circuit voltages (OCVs) for a PEM fuel cell operating at 3.0 atm, 100% relative humidity
and in the temperature range of 23–120° C were measured. It was observed that the OCV …

Polybenzimidazole-membrane-based PEM fuel cell in the temperature range of 120–200 C

J Zhang, Y Tang, C Song, J Zhang - Journal of Power Sources, 2007 - Elsevier
Phosphoric acid-doped polybenzimidazole-membrane-based PEM fuel cells were tested in
the temperature range of 120–200° C, with ambient backpressure and 0% RH. AC …

PEM fuel cell relative humidity (RH) and its effect on performance at high temperatures

J Zhang, Y Tang, C Song, Z Xia, H Li, H Wang… - Electrochimica …, 2008 - Elsevier
The water balance inside a fuel cell was analysed and several equations were introduced
as functions of fuel cell gas-stream inlet and outlet pressures, inlet relative humidities (RHs) …

Equivalent electric circuit modeling and performance analysis of a PEM fuel cell stack using impedance spectroscopy

AM Dhirde, NV Dale, H Salehfar… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
In this paper, equivalent electric circuit models of a commercial 1.2-kW proton exchange
membrane (PEM) fuel cell stack are proposed based on AC impedance studies. The PEM …

Single-atom oxygen reduction reaction electrocatalysts of Fe, Si, and N co-doped carbon with 3D interconnected mesoporosity

HS Kim, CH Lee, JH Jang, MS Kang, H Jin… - Journal of Materials …, 2021 - pubs.rsc.org
The development of non Pt-based catalysts (non-PBCs) that show excellent oxygen
reduction reaction (ORR) activity for high-performance Zn–air battery (ZAB) and anion …

Electrochemical impedance spectroscopy of catalyst and carbon degradations in proton exchange membrane fuel cells

Q Meyer, Y Zeng, C Zhao - Journal of Power Sources, 2019 - Elsevier
Wide–scale commercialisation of proton exchange membrane fuel cell (PEMFC) is hindered
by the degradation of cathode catalyst and carbon support, making it crucial to understand …

Hydrogen crossover in high-temperature PEM fuel cells

X Cheng, J Zhang, Y Tang, C Song, J Shen… - Journal of Power …, 2007 - Elsevier
In this paper, hydrogen crossover was measured in an environment of high-temperature
proton exchange membrane (PEM) fuel cells using a steady-state electrochemical method at …