Application of FTIR in direct methanol fuel cells - Quantitative analysis of PTFE in gas diffusion layers
文献类型：期刊论文
| 作者 | Jing, Mingyi1,2; Jiang, Luhua1; Wang, Suli1; Jing, Fenning1; Sun, Gongquan1 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2013-06-27 |
| 卷号 | 38期号:19页码:7957-7963 |
| 关键词 | FTIR Diffusion reflection ATR Gas diffusion layers PTFE |
| 英文摘要 | gas diffusion layers (gdls) of direct methanol fuel cells (dmfcs), consisting of a microporous layer (mpl) and a back layer (bl), influence the cell performance and stability significantly due to the critical function that the gdl undertook, i.e., distribution of reactants and removal of the products in electrodes. the hydrophilic/hydrophobic properties of the gdls are required to tailor to the transport/transfer of reactants/products depending on a specific electrode reaction. one important way to adjust the hydrophobic/hydrophilic properties of gdls is to vary ptfe content in gdls. in this paper, we employ infrared spectroscopy technique, specifically, diffuse reflection (dr) method and attenuation total reflection (atr) method, to determine the ptfe content in both mpls and bls quantitatively by comparing the measured c-f intensity with the pre-calibrated standard plots. compared to the atr method, the dr method takes advantages of sensitivity, wide range and precision. by the dr method, we succeed in observing that ptfe in mpls migrates to bls, consistent with the corresponding edx results for a sample experienced 600 h lifetime test, suggesting dr method an effective approach to determine quantitatively the hydrophilic/hydrophobic properties of both mpls and bls. crown copyright (c) 2013, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | water transport ; performance ; cathode ; durability ; electrodes |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321407500024 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137854]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cell & Battery, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jing, Mingyi,Jiang, Luhua,Wang, Suli,et al. Application of FTIR in direct methanol fuel cells - Quantitative analysis of PTFE in gas diffusion layers[J]. international journal of hydrogen energy,2013,38(19):7957-7963. |
| APA | Jing, Mingyi,Jiang, Luhua,Wang, Suli,Jing, Fenning,&Sun, Gongquan.(2013).Application of FTIR in direct methanol fuel cells - Quantitative analysis of PTFE in gas diffusion layers.international journal of hydrogen energy,38(19),7957-7963. |
| MLA | Jing, Mingyi,et al."Application of FTIR in direct methanol fuel cells - Quantitative analysis of PTFE in gas diffusion layers".international journal of hydrogen energy 38.19(2013):7957-7963. |
入库方式： OAI收割
来源：大连化学物理研究所
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