Superbase-derived protic ionic liquids

Dai, Sheng; Luo, Huimin; Baker, Gary A.

Title: Superbase-derived protic ionic liquids

Patent · Tue Sep 03 00:00:00 EDT 2013

OSTI ID:1092764

Dai, Sheng; Luo, Huimin; Baker, Gary A.

Protic ionic liquids having a composition of formula (A.sup.-)(BH.sup.+) wherein A.sup.- is a conjugate base of an acid HA, and BH.sup.+ is a conjugate acid of a superbase B. In particular embodiments, BH.sup.+ is selected from phosphazenium species and guanidinium species encompassed, respectively, by the general formulas: ##STR00001## The invention is also directed to films and membranes containing these protic ionic liquids, with particular application as proton exchange membranes for fuel cells.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 8,524,388

Application Number:: 12/690,224

OSTI ID:: 1092764

Country of Publication:: United States

Language:: English

References (12)

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New Types of Brönsted Acid–Base Ionic Liquids-Based Membranes for Applications in PEMFCs Fernicola, Alessandra; Panero, Stefania; Scrosati, Bruno ChemPhysChem, Vol. 8, Issue 7 https://doi.org/10.1002/cphc.200600782	journal	May 2007
Brønsted acid–base ionic liquids for fuel cell electrolytes Nakamoto, Hirofumi; Watanabe, Masayoshi Chem. Commun., Issue 24 https://doi.org/10.1039/B618953A	journal	January 2007
The distillation and volatility of ionic liquids Earle, Martyn J.; Esperança, José M. S. S.; Gilea, Manuela A. Nature, Vol. 439, Issue 7078 https://doi.org/10.1038/nature04451	journal	February 2006
Brønsted acid–base ionic liquids and their use as new materials for anhydrous proton conductors Susan, Md. A. B. H.; Noda, Akihiro; Mitsushima, Shigenori Chemical Communications, Issue 8 https://doi.org/10.1039/b300959a	journal	January 2003
A New Strategy for Synthesis of Novel Classes of Room-Temperature Ionic Liquids Based on Complexation Reaction of Cations Huang, Jing-Fang; Luo, Huimin; Dai, Sheng Journal of The Electrochemical Society, Vol. 153, Issue 2 https://doi.org/10.1149/1.2150161	journal	January 2006
Polarity Measurement for Ionic Liquids Containing Dissociable Protons Ogihara, Wataru; Aoyama, Takahiro; Ohno, Hiroyuki Chemistry Letters, Vol. 33, Issue 11 https://doi.org/10.1246/cl.2004.1414	journal	November 2004
Ultrastable Superbase-Derived Protic Ionic Liquids Luo, Huimin; Baker, Gary A.; Lee, Je Seung The Journal of Physical Chemistry B, Vol. 113, Issue 13 https://doi.org/10.1021/jp901312d	journal	February 2009
Protic Ionic Liquids: Preparation, Characterization, and Proton Free Energy Level Representation ^† Belieres, Jean-Philippe; Angell, C. Austen The Journal of Physical Chemistry B, Vol. 111, Issue 18 https://doi.org/10.1021/jp067589u	journal	May 2007
Binary inorganic salt mixtures as high conductivity liquid electrolytes for >100 °C fuel cells Belieres, Jean-Philippe; Gervasio, Don; Angell, C. Austen Chem. Commun., Issue 46 https://doi.org/10.1039/B611150E	journal	January 2006
Guanidinophosphazenes: Design, Synthesis, and Basicity in THF and in the Gas Phase Kolomeitsev, Alexander A.; Koppel, Ilmar A.; Rodima, Toomas Journal of the American Chemical Society, Vol. 127, Issue 50 https://doi.org/10.1021/ja053543n	journal	November 2005
Protic Ionic Liquids: Properties and Applications Greaves, Tamar L.; Drummond, Calum J. Chemical Reviews, Vol. 108, Issue 1, p. 206-237 https://doi.org/10.1021/cr068040u	journal	January 2008

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