Impact of substrate diffusion and enzyme distribution in 3D-porous electrodes: a combined electrochemical and modelling study of a thermostable H2/O2enzymatic fuel cell

2017 ◽  
Vol 10 (9) ◽  
pp. 1966-1982 ◽  
Author(s):  
Ievgen Mazurenko ◽  
Karen Monsalve ◽  
Pascale Infossi ◽  
Marie-Thérèse Giudici-Orticoni ◽  
Frédéric Topin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Porous Electrodes ◽  
Term Stability ◽  
Long Term Stability ◽  
Enzymatic Fuel Cell ◽  
Substrate Diffusion ◽  
Enzyme Distribution ◽  
Modelling Study

High massic catalytic currents and long-term stability are reached in a thermostable H2/O2enzymatic fuel cell.

On the Properties and Long-Term Stability of Infiltrated Lanthanum Cobalt Nickelates (LCN) in Solid Oxide Fuel Cell Cathodes

2017 ◽  
Vol 164 (7) ◽  
pp. F748-F758 ◽  
Author(s):  
Ragnar Kiebach ◽  
Philipp Zielke ◽  
Sune Veltzé ◽  
Simona Ovtar ◽  
Yu Xu ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Term Stability ◽  
Long Term Stability ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

Long-Term Stability of the LSM-Coated Crofer22APU for Solid Oxide Fuel Cell Interconnect

2019 ◽  
Vol 25 (2) ◽  
pp. 1473-1476
Author(s):  
Rak-Hyun Song ◽  
Seong-Soo Pyo ◽  
Tak-Hyung Lim ◽  
Seung-Bok Lee ◽  
Dong-Ryul Shin
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Term Stability ◽  
Long Term Stability

Porous Graphene Layers on Pt Catalyst for Long-Term Stability of Fuel Cell Electrode

2016 ◽  
Vol 75 (14) ◽  
pp. 837-840
Author(s):  
H. Kim ◽  
A. W. Robertson ◽  
J. H. Warner ◽  
S. O. Kim
Keyword(s):  
Fuel Cell ◽  
Pt Catalyst ◽  
Graphene Layers ◽  
Porous Graphene ◽  
Term Stability ◽  
Long Term Stability ◽  
Fuel Cell Electrode ◽  
Cell Electrode

Accelerated Degradation for Hardware in the Loop Simulation of Fuel Cell-Gas Turbine Hybrid

2014 ◽  
Author(s):  
Maria Abreu-Sepulveda ◽  
David Tucker ◽  
Nor Farida Harun ◽  
Gregory Hackett ◽  
Anke Hagen
Keyword(s):  
Fuel Cell ◽  
Real Time ◽  
Gas Turbine ◽  
Degradation Rate ◽  
Operating Conditions ◽  
Hardware In The Loop ◽  
Electrochemical Degradation ◽  
Term Stability ◽  
Long Term Stability

Solid oxide fuel cells (SOFCs) are a promising technology for clean power generation, however their implementation has been limited by several degradation mechanisms, which significantly reduce its lifetime under constant output power and inhibits the technology for commercialization in the near future. With the purpose of harnessing the capabilities offered by SOFCs, the U.S. DOE-National Energy Technology Laboratory (NETL) in Morgantown, WV has developed the Hybrid Performance (HyPer) project in which a SOFC 1D, real-time operating model is coupled to a gas turbine hardware system by utilizing hardware-in-the-loop simulation (HiLS). More recently, in order to assess the long-term stability of the SOFC part of the system, electrochemical degradation due to operating conditions such as current density and fuel utilization have been incorporated into the SOFC model and successfully recreated in real time for standalone and hybrid operation. The mathematical expression for degradation rate was obtained through the analysis of empirical voltage versus time plots for different current densities and fuel utilizations at 750, 800, and 850°C. Simulation results well reflected the behavior of SOFC degradation rates from which the long-term stability of the cell under various conditions was assessed. Distributed fuel cell parameters are presented for both standalone and hybrid configurations. The incorporation of the electrochemical degradation rate into the SOFC model provides a framework to study more realistically Fuel Cell-hybrid systems and set forth a mechanism to improve the long-term stability of SOFCs through the hybridization of such technology.

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