The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells
Proton conducting membranes for fuel cell applications have been prepared by grafting of styrene onto pre-formed fluoropolymer films using electron beam or gamma radiation and then sulfonated. The influence of the preparation conditions and the role of the initial fluoropolymer has been investigate...
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| Định dạng: | Bài viết |
| Ngôn ngữ: | Vietnamese |
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Trường Đại học Đà Lạt
2012
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/33400 |
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oai:scholar.dlu.edu.vn:DLU123456789-334002013-05-08T02:07:44Z The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells Dương, Văn Đông Hóa phân tích Proton conducting membrane Proton conducting membranes for fuel cell applications have been prepared by grafting of styrene onto pre-formed fluoropolymer films using electron beam or gamma radiation and then sulfonated. The influence of the preparation conditions and the role of the initial fluoropolymer has been investigated. The investigation of PVDF and PTFE-graft-Styren films aimed to prepare the novel ion-exchanger and apply on electrolyte fuel cells. The grafting yields of PVDF and PTFE films gradually increased with the grafting time and then leveled off after 24 hours, which is independent of the irradiation condition. The concentration of free radical generated by Gamma-irradiation in PVDF and PTFE films increased with the irradiation dose in the range of 5 to 60 kGy. The free radicals generated in PVDF an d PTFE films decayed with storage time. 2012-12-03T07:33:16Z 2012-12-03T07:33:16Z 2005 Working Paper https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/33400 vi Kỷ yếu Hội nghị khoa học – Sau đại học 2011;tr. 13-18 application/pdf Trường Đại học Đà Lạt |
| institution |
Thư viện Trường Đại học Đà Lạt |
| collection |
Thư viện số |
| language |
Vietnamese |
| topic |
Hóa phân tích Proton conducting membrane |
| spellingShingle |
Hóa phân tích Proton conducting membrane Dương, Văn Đông The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| description |
Proton conducting membranes for fuel cell applications have been prepared by grafting of styrene onto pre-formed fluoropolymer films using electron beam or gamma radiation and then sulfonated. The influence of the preparation conditions and the role of the initial fluoropolymer has been investigated. The investigation of PVDF and PTFE-graft-Styren films aimed to prepare the novel ion-exchanger and apply on electrolyte fuel cells. The grafting yields of PVDF and PTFE films gradually increased with the grafting time and then leveled off after 24 hours, which is independent of the irradiation condition. The concentration of free radical generated by Gamma-irradiation in PVDF and PTFE films increased with the irradiation dose in the range of 5 to 60 kGy. The free radicals generated in PVDF an d PTFE films decayed with storage time. |
| format |
Working Paper |
| author |
Dương, Văn Đông |
| author_facet |
Dương, Văn Đông |
| author_sort |
Dương, Văn Đông |
| title |
The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| title_short |
The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| title_full |
The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| title_fullStr |
The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| title_full_unstemmed |
The preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| title_sort |
preparation of novel ion-exchange membranes by grafting of styrene onto pvdf and ptfe for application of polymer electrolyte fuel cells |
| publisher |
Trường Đại học Đà Lạt |
| publishDate |
2012 |
| url |
https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/33400 |
| _version_ |
1819827058245632000 |