Organic Proton-Conducting Molecules as Solid-State Separator Materials for Fuel Cell Applications

被引:39
作者
Jimenez-Garcia, Lucia [1 ]
Kaltbeitzel, Anke [1 ]
Enkelmann, Volker [1 ]
Gutmann, Jochen S. [1 ]
Klapper, Markus [1 ]
Muellen, Klaus [1 ]
机构
[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
关键词
BASE IONIC LIQUIDS; METAL PHOSPHONATE CHEMISTRY; EXCHANGE MEMBRANES PEMS; INTERMEDIATE-TEMPERATURE; GRAMICIDIN CHANNELS; POLYMER MEMBRANES; AQUEOUS-SOLUTIONS; PROTOGENIC GROUP; WATER-UPTAKE; SIDE-CHAINS;
D O I
10.1002/adfm.201002357
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Organic proton-conducting molecules are presented as alternative materials to state-of-the-art polymers used as electrolytes in proton-exchanging membrane (PEM) fuel cells. Instead of influencing proton conductivity via the mobility offered by polymeric materials, the goal is to create organic molecules that control the proton-transport mechanism through supramolecular order. Therefore, a series of phosphonic acid-containing molecules possessing a carbon-rich hydrophobic core and a hydrophilic periphery was synthesized and characterized. Proton conductivity measurements as well as water uptake and crystallinity studies (powder and single-crystal X-ray analysis) were performed under various conditions. These experiments reveal that proton mobility is closely connected to crystallinity and strongly dependent on the supramolecular ordering of the compound. This study provides insights into the proton-conducting properties of this novel class of materials and the mechanisms responsible for proton transport.
引用
收藏
页码:2216 / 2224
页数:9
相关论文
共 59 条
[11]  
2-5
[12]   PROTON TRANSPORT MECHANISM IN CONCENTRATED AQUEOUS-SOLUTIONS AND SOLID HYDRATES OF ACIDS [J].
DIPPEL, T ;
KREUER, KD .
SOLID STATE IONICS, 1991, 46 (1-2) :3-9
[13]   Fuel cell materials and components [J].
Haile, SM .
ACTA MATERIALIA, 2003, 51 (19) :5981-6000
[14]   Solid acids as fuel cell electrolytes [J].
Haile, SM ;
Boysen, DA ;
Chisholm, CRI ;
Merle, RB .
NATURE, 2001, 410 (6831) :910-913
[15]   Solid acid proton conductors: from laboratory curiosities to fuel cell electrolytes [J].
Haile, Sossina M. ;
Chisholm, Calum R. I. ;
Sasaki, Kenji ;
Boysen, Dane A. ;
Uda, Tetsuya .
FARADAY DISCUSSIONS, 2007, 134 :17-39
[16]  
Hailwood A.J., 1946, T FARADAY SOC, V42, P84, DOI DOI 10.1039/TF946420B084
[17]   Alternative polymer systems for proton exchange membranes (PEMs) [J].
Hickner, MA ;
Ghassemi, H ;
Kim, YS ;
Einsla, BR ;
McGrath, JE .
CHEMICAL REVIEWS, 2004, 104 (10) :4587-4611
[18]   A supramolecular ladderlike structure formed by the auto-assembly of benzene-1,3,5-triphosphonic acid [J].
Hix, Gary B. ;
Caignaert, Vincent ;
Rueff, Jean-Michel ;
Le Pluart, Loic ;
Warren, John E. ;
Jaffres, Paul-Alain .
CRYSTAL GROWTH & DESIGN, 2007, 7 (02) :208-211
[19]   Phosphonated Hexaphenylbenzene: A Crystalline Proton Conductor [J].
Jimenez-Garcia, Lucia ;
Kaltbeitzel, Anke ;
Pisula, Wojciech ;
Gutmann, Jochen S. ;
Klapper, Markus ;
Muellen, Klaus .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (52) :9951-9953
[20]   An adamantane-based tetraphosphonic acid that forms an open diamondoid net via a hydrogen-bonded phosphonic acid-water cluster [J].
Jones, Katherine M. E. ;
Mahmoudkhani, Amir H. ;
Chandler, Brett D. ;
Shimizu, George K. H. .
CRYSTENGCOMM, 2006, 8 (04) :303-305