Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC
The important reason of the reduction of the catalytic performance of Pt/C catalyst is carbon carrier corrosion. The risk of oxgen flooding in proton-exchange membrane fuel cellsis also increased by hydrophilicity of this catalyst. The Pt/C catalyst was subsequently reduced using hydrazine hydrate t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2019-06-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2019/V47/I6/63 |
| _version_ | 1797964876855902208 |
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| author | LU Lu WU Lei SHI Ji-cheng XU Hong-feng CONG Tao-quan |
| author_facet | LU Lu WU Lei SHI Ji-cheng XU Hong-feng CONG Tao-quan |
| author_sort | LU Lu |
| collection | DOAJ |
| description | The important reason of the reduction of the catalytic performance of Pt/C catalyst is carbon carrier corrosion. The risk of oxgen flooding in proton-exchange membrane fuel cellsis also increased by hydrophilicity of this catalyst. The Pt/C catalyst was subsequently reduced using hydrazine hydrate to make Pt/C corrosion resistant and anti-flooding. Comparison by infrared spectra of absorption peaks shows the increased number of oxygen-containing functional groups in the XC-72 carbon surface treated with hydrogen peroxide. Its measured contact angle is less than that of untreated XC-72 carbon. Reduction of oxidized XC-72 carbon with hydrazine hydrate shows that the contact angle is increased by 22.4° compared with that of the oxidized XC-72 carbon, indicating anti-flooding enhancement. As shown in the specific surface area measurement, the specific surface area of XC-72 is reduced by the hydrogen peroxide treatment but its mespopore ratio is increased, which favors the carrier load Pt. The anti-flooding of Pt/C catalyst after reduction with hydrazine hydrate is stronger than that before reduction, indicating an increase in contact angle by 6.2°. After 2000 cycles of cyclic voltammetry, the electrochemical specific surface loss is decreased and the durability is improved for the reduced Pt/C catalyst by hydrazine hydrate. |
| first_indexed | 2024-04-11T01:50:31Z |
| format | Article |
| id | doaj.art-0a503781942644f1a8221680798ea584 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:50:31Z |
| publishDate | 2019-06-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-0a503781942644f1a8221680798ea5842023-01-03T06:26:51ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-06-01476636910.11868/j.issn.1001-4381.2018.000379201906000379Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFCLU Lu0WU Lei1SHI Ji-cheng2XU Hong-feng3CONG Tao-quan4Liaoning Province Key Laboratory of New Energy Battery, Dalian Jiaotong University, Dalian 116028, Liaoning, ChinaLiaoning Province Key Laboratory of New Energy Battery, Dalian Jiaotong University, Dalian 116028, Liaoning, ChinaLiaoning Province Key Laboratory of New Energy Battery, Dalian Jiaotong University, Dalian 116028, Liaoning, ChinaLiaoning Province Key Laboratory of New Energy Battery, Dalian Jiaotong University, Dalian 116028, Liaoning, ChinaLiaoning Province Key Laboratory of New Energy Battery, Dalian Jiaotong University, Dalian 116028, Liaoning, ChinaThe important reason of the reduction of the catalytic performance of Pt/C catalyst is carbon carrier corrosion. The risk of oxgen flooding in proton-exchange membrane fuel cellsis also increased by hydrophilicity of this catalyst. The Pt/C catalyst was subsequently reduced using hydrazine hydrate to make Pt/C corrosion resistant and anti-flooding. Comparison by infrared spectra of absorption peaks shows the increased number of oxygen-containing functional groups in the XC-72 carbon surface treated with hydrogen peroxide. Its measured contact angle is less than that of untreated XC-72 carbon. Reduction of oxidized XC-72 carbon with hydrazine hydrate shows that the contact angle is increased by 22.4° compared with that of the oxidized XC-72 carbon, indicating anti-flooding enhancement. As shown in the specific surface area measurement, the specific surface area of XC-72 is reduced by the hydrogen peroxide treatment but its mespopore ratio is increased, which favors the carrier load Pt. The anti-flooding of Pt/C catalyst after reduction with hydrazine hydrate is stronger than that before reduction, indicating an increase in contact angle by 6.2°. After 2000 cycles of cyclic voltammetry, the electrochemical specific surface loss is decreased and the durability is improved for the reduced Pt/C catalyst by hydrazine hydrate.http://jme.biam.ac.cn/CN/Y2019/V47/I6/63proton exchange membrane fuel cellcatalystanti-floodinghydrogen peroxidehydrazine hydrate |
| spellingShingle | LU Lu WU Lei SHI Ji-cheng XU Hong-feng CONG Tao-quan Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC Cailiao gongcheng proton exchange membrane fuel cell catalyst anti-flooding hydrogen peroxide hydrazine hydrate |
| title | Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC |
| title_full | Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC |
| title_fullStr | Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC |
| title_full_unstemmed | Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC |
| title_short | Preparation and characterization of anti-flooding functional Pt/C catalyst for PEMFC |
| title_sort | preparation and characterization of anti flooding functional pt c catalyst for pemfc |
| topic | proton exchange membrane fuel cell catalyst anti-flooding hydrogen peroxide hydrazine hydrate |
| url | http://jme.biam.ac.cn/CN/Y2019/V47/I6/63 |
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