| Download | - View accepted manuscript: PEM fuel cell cathode contamination in the presence of cobalt ion (Co2+) (PDF, 957 KiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.1016/j.electacta.2010.05.031 |
|---|
| Author | Search for: Li, Hui1; Search for: Gazzarri, Javier1; Search for: Tsay, Ken1; Search for: Wu, Shaohong1; Search for: Wang, Haijiang1; Search for: Zhang, Jiujun1; Search for: Wessel, Silvia; Search for: Abouatallah, Rami; Search for: Joos, Nathan; Search for: Schrooten, Jeremy |
|---|
| Affiliation | - National Research Council of Canada. NRC Institute for Fuel Cell Innovation
|
|---|
| Format | Text, Article |
|---|
| Subject | PEM fuel cells; Cobalt ion contamination; Electrode kinetics; Mass transfer; Membrane conductivity |
|---|
| Abstract | This paper reports the effects of Co²⁺ contamination on PEM fuel cell performance as a function of Co²⁺ concentration and operating temperature. A significant drop in fuel cell voltage occurred when Co²⁺ was injected into the cathode air stream, and Co²⁺ contamination became more severe with decreasing temperature. To investigate in detail the mechanism of Co²⁺ poisoning, AC impedance was monitored before and during Co²⁺ injection, revealing that both charge transfer and mass transport related processes deteriorated significantly in the presence of Co²⁺, whereas membrane conductivity decreased to a lesser extent. Surface cyclic voltammetry and contact angle measurements further revealed changes in physical properties, such as active Pt surface area and hydrophilicity, furthering our understanding of the contamination process. |
|---|
| Publication date | 2010-08-01 |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| NPARC number | 16942911 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 48d4e463-bba7-4a85-9f34-70da50bf0db0 |
|---|
| Record created | 2011-03-02 |
|---|
| Record modified | 2020-04-17 |
|---|
