Characteristics of Proton Exchange Membrane Fuel Cells(PEMFC) Membrane and Electrode Assembly(MEA) Using Sulfonated Poly(ether ether ketone) Membrane
| Autor: | Sung-June Oh, Jung-Hun Lee, Hye-Ri Lee, Il-Chai Na, Byungchan Hwang, Kwon-Pil Park, Se-Hoon Lee |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Chemistry
General Chemical Engineering Proton exchange membrane fuel cell 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Poly ether ether ketone Membrane Chemical engineering Electrode Polymer chemistry 0210 nano-technology |
| Zdroj: | Korean Chemical Engineering Research. 54:181-186 |
| ISSN: | 0304-128X |
| Popis: | 최근에 저가의 고분자 전해질 연료전지(Proton Exchange Membrane Fuel Cells, PEMFC)용 비불소계 전해질 막 연구개발이 활발히 진행되고 있다. 본 연구에서는 sulfonated Poly(ether ether ketone)(sPEEK)막의 특성을 술폰화도, 상대습도, 단위 전지 온도에 따라 PEMFC 운전 조건에서 비교하였다. I-V 분극곡선, 수소투과도, 전기화학적 표면적, 막 저항 및 부하 전달 저항 등을 측정·분석했다. 술폰화도와 온도, 상대습도가 높을수록 성능이 높았으며, 특히 낮은 슬폰화도와 낮은 상대습도에서 이온 전도도 감소 때문에 성능이 큰 폭으로 감소함을 확인하였다.Abstract − Recently, there are many efforts focused on development of more economical non-fluorinated membranesfor use in PEMFCs (Proton Exchange Membrane Fuel Cells). In this study, characteristics of sulfonated Poly(ether etherketone) (sPEEK) were compared according to degrees of sulfonation (DS), relative humidity, cell temperatures at PEMFCoperation condition. I-V polarization curve, hydrogen crossover, electrochemical surface area, membrane resistance andcharge transfer resistance were measured. sPEEK membrane showed high performance at high DS, high temperatureand high relative humidity, in particular, performance of sPEEK membrane decreased largely due to low ionic conduc-tivity at low DS and low relative humidity.Key words: PEMFC, sPEEK, Performance, Degrees of sulfonation, Relative Humidity, Cell Temperatures, Ionic Conductivity |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|