신소재공학과

행사일 20171113 

■ 제목 : Recent Development and Understanding of High-Temperature PEM Fuel Cells at DTU Energy
■ 연사 : Prof. Jens Oluf Jensen (Technical University of Denmark)       

■ 초청자 : 신소재공학과 조은애 교수 (T. 3317)      
■ 일시 : 11 13일 (월오후 4      
■ 장소 : 응용공학동 (W1-1) 2층 2425      

 

■ 내용(초록) : 

High-temperature PEM fuel cells (HT-PEMFC) have been studies and developed at Technical University of Denmark for two decades. Today the technology has reached a high level of maturity and commercialization is gaining momentum through industries like Danish Power systems, Serenergy, Siqens and Elcore. The immediate aim is now to reduce cost and extend durability.

 

Recent durability studies will be presented and the learning points discussed. The effect of temperature, current load and gas flow rates was studied systematically in a matrix study.[1] All three parameters have significant effects on voltage decay at constant current. It will moreover be shown that that even though HT-PEMFCs run perfectly without humidification, humidity control is crucial for accelerated stress tests of the catalysts by potential cycling, if the tests shall be meaningful.[2] Finally, work on oxygen reduction catalysts without the use of platinum group metals will be presented. Highly organized nanostructured catalysts can be synthesized from simple precursors in a one-pot autoclave process leading to oxygen reduction catalysts with high activity in acidic as well as alkaline environment.[3] The understanding, or lack of understanding, of the active site of what is believed to be iron-nitrogen-carbon based catalysts will be discussed.

A book on HT-PEMFC was published recently.[4]

        

References:

1. [1] M. T. D. Jakobsen, L. N. Cleemann, H. Becker, T. Steenberg, H. A. Hjuler, L. Seerup, Q. Li, J. O. Jensen. Parametric Accelerated Stress Test Study in Relation to Long-term Durability of PBI-based HT-PEM Fuel Cells. Submitted to J. Electrochem. Soc.

[2] M. T. D. Jakobsen, L. N. Cleemann, L. Zhong, H. Becker, T. Steenberg, H. A. Hjuler, L. Seerup, Q. Li and J. O. Jensen. Catalyst Degradation under Accelerated Stress Test for PBI based HT-PEM Fuel Cells – Effect of Humidification. Published online in Electrocatalysis. DOI: 10.1007/s12678-017-0427-1

[3] Y. Hu, J. O.  Jensen, W. Zhang, L. N. Cleemann, W. Xing, N. J. Bjerrum and Q. Li,. Hollow Spheres of Iron Carbide Nanoparticles Encased in Graphitic Layers as Oxygen Reduction Catalysts. Angew. Chem. Int. Ed. 53 (14) 3675 –3679(2014) DOI: 10.1002/anie.201400358

[4] Q. Li, D. Aili, H. A. Hjuler and J. O. Jensen (eds). High Temperature Polymer Electrolyte Membrane Fuel Cells- Approaches, Status and Perspectives. Springer-Verlag 2016.

 

No. Subject Author Date Views
Notice 5/15 (Tue) 김명길 교수 (중앙대 화학과) ADMINI 2018.05.15 22
Notice 5/8 (Tue) 김주영 교수 (UNIST 신소재공학부) ADMINI 2018.05.09 23
Notice 5/1 (Tue) 윤덕용 명예교수 (KAIST 신소재공학과) ADMINI 2018.04.30 28
Notice 4/24 (Tue) 장경호 대표이사 (이녹스첨단소재, Innox Advanced Materials) ADMINI 2018.04.23 43
Notice 4/10 (Tue) 유기준 교수 (연세대학교 전기전자공학부) ADMINI 2018.04.09 93
Notice 4/3 (Tue) 최병기 마스터 (삼성전자종합기술원) ADMINI 2018.04.02 94
Notice 3/27 (Tue) 홍승범 교수 (KAIST MSE) ADMINI 2018.03.26 115
Notice 3/20 (Tue) 정인호 교수 (서울대학교 재료공학부) ADMINI 2018.03.20 122
Notice 3/13 (Tue) 백종범 교수 (School of Energy and Chemical Engineering, UNIST) ADMINI 2018.03.13 110
Notice 3/6 (Tue) 류석영 교수 (KAIST 전산학부) ADMINI 2018.03.05 118
Notice 2/27 (Tue) 한우진 박사 (NASA) ADMINI 2018.02.27 152
Notice 2/20 (Tue) 장재범 박사 (성균관대학) ADMINI 2018.02.19 148
Notice 2/8 (Thu) Prof. Pei-Chen Su (Nanyang Technological University) ADMINI 2018.02.05 139
Notice 2/13 (Tue) 김성규 교수 (Northwestern Univ) ADMINI 2018.01.31 162
Notice 1/9 (Tue) 변춘원 선임연구원 (ETRI) ADMINI 2018.01.09 164
Notice 12/23 (Sat) Prof. Liangbing (Bing) Hu/Univ. of Maryland ADMINI 2017.12.22 164
Notice 2017 신소재공학과 가을학기 정기세미나 ADMINI 2017.09.08 1868
247 11/21 (Tue) 민병권 센터장 (한국과학기술연구원) ADMINI 2017.11.17 708
246 11/13 (Mon) Dr. Hans Aage Hiuler (Danish Power System) ADMINI 2017.11.10 182
» 11/13 (Mon) Prof. Jens Oluf Jensen (Technical University of Denmark) ADMINI 2017.11.10 286
244 11/14 (Tue) 장재범 교수 (성균관대학교) ADMINI 2017.11.10 319
243 11/7 (Tue) 허수미 교수 (전남대학교 ADMINI 2017.11.05 204
242 10/31 (Tue) 장세영 상무 (삼성전자) ADMINI 2017.10.26 197
241 11/6 (Mon) Redouane Borsali 교수 (Grenoble Alpes University) ADMINI 2017.10.26 190
240 11/6 ~ 7 Erik Luijten 교수 (Northwestern University) file ADMINI 2017.10.25 222
239 10/23 ~ 24 Paul C. McIntyre 교수 (Stanford University) file ADMINI 2017.10.25 168
238 10/24 (Tue) 김선재 교수 (세종대학교) ADMINI 2017.10.20 539
237 10/19 (Thu) 정상철 교수 (순천대학교) ADMINI 2017.10.18 950
236 10/10 (Tue) 최 주 원장 (POSCO) ADMINI 2017.09.29 1259
235 9/26 (Tue) 이태우 교수 (서울대학교) ADMINI 2017.09.22 537
234 9/19 (Tue) 이상민 의원 (국회의원) ADMINI 2017.09.15 660
233 9/12 (Tue) Monika Fleischer(Eberhard Karls University Tübingen) ADMINI 2017.09.14 331
232 9/12 (Tue) 유필진 교수 (성균관대학교) ADMINI 2017.09.08 743
231 9/11 (Mon) 조원준 박사 (Lawrence Berkeley National Lab, Berkeley) ADMINI 2017.09.06 672
230 9/13 (Wed) 유인경 박사 (SAIT) ADMINI 2017.09.06 770
229 8/24 (Tue) 육종민 교수 (KAIST 신소재공학과) ADMINI 2017.08.24 960