Mitigation of chemical degradation in perfluorosulfonic acid proton exchange membrane using regenerable hindered amine functionalized carbon quantum dots

2021 ◽  
pp. 119614
Author(s):  
Henghui Huang ◽  
Shaoyi Xu ◽  
Jiexin Zhou ◽  
Feiyan Luo ◽  
Jiantao Fan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Proton Exchange Membrane ◽  
Carbon Quantum Dots ◽  
Proton Exchange ◽  
Chemical Degradation ◽  
Perfluorosulfonic Acid ◽  
Amine Functionalized ◽  
Acid Proton ◽  
Exchange Membrane

scholarly journals Mechanical behavior of a hydrated perfluorosulfonic acid membrane at meso and nano scales

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9594-9603 ◽  
Author(s):  
Cong Feng ◽  
Yan Li ◽  
Kunnan Qu ◽  
Zhiming Zhang ◽  
Pengfei He
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Mechanical Behavior ◽  
Internal Structure ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Membrane Material ◽  
Perfluorosulfonic Acid ◽  
The Stability ◽  
Exchange Membrane

Perfluorosulfonic acid (PFSA) is widely used as the membrane material for proton-exchange membrane fuel cells, and its mechanical properties directly affect the stability and the life of the internal structure of the proton exchange membrane.

scholarly journals Characterizing the hydrophobic-to-hydrophilic transition of electrolyte structuring in proton exchange membrane mimicking surfaces

2018 ◽  
Vol 20 (17) ◽  
pp. 11722-11729 ◽  
Author(s):  
Laila Moreno Ostertag ◽  
Xiao Ling ◽  
Katrin F. Domke ◽  
Sapun H. Parekh ◽  
Markus Valtiner
Keyword(s):  
Sulfonic Acid ◽  
Surface Density ◽  
Proton Exchange Membrane ◽  
Ionic Channels ◽  
Proton Exchange ◽  
Perfluorosulfonic Acid ◽  
Head Groups ◽  
Exchange Membrane

The surface density of charged sulfonic acid head groups in a perfluorosulfonic acid (PFSA) proton exchange membrane determines the hydrophilicity of the ionic channels and is thus critical for the structuring and transport of water and protons.

scholarly journals Research Progress of Proton Exchange Membrane Failure and Mitigation Strategies

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2591
Author(s):  
Yijing Xing ◽  
Haibin Li ◽  
George Avgouropoulos
Keyword(s):  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Mitigation Strategies ◽  
Chemical Degradation ◽  
Research Progress ◽  
System Control ◽  
Degradation Behavior ◽  
Degradation Failure ◽  
Exchange Membrane

Proton exchange membrane (PEM) is critical for the efficient, reliable and safe operation of proton exchange membrane fuel cells (PEMFC). The lifetime of PEM is the main factor restricting the commercialization of PEMFC. The complexity of operating conditions, such as open-circuit/idling, dynamic load and startup-shutdown under automotive conditions, on PEMFC will cause the mechanical and chemical degradation of PEM and affect the service life of PEMFC. In order to understand the degradation behavior and durability of PEM, this paper presents an overview of the degradation failure mechanism and mitigation strategies of PEM. The mechanical and chemical degradation behavior of PEM and its causes, as well as the mitigation strategies are discussed in order to give a direction for PEM design and fuel cell system control strategy. It is proposed as a primary principle in order to further develop and promote the durability of PEM, to focus on the material improvement and system engineering.

Sign in / Sign up

Export Citation Format

Share Document