DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oh, Keun-Hwan | ko |
dc.contributor.author | Lee, Dongju | ko |
dc.contributor.author | Choo, Min-Ju | ko |
dc.contributor.author | Park, Kwang Hyun | ko |
dc.contributor.author | Jeon, Seokwoo | ko |
dc.contributor.author | Hong, Soon Hyung | ko |
dc.contributor.author | Park, Jung-Ki | ko |
dc.contributor.author | Choi, Jang Wook | ko |
dc.date.accessioned | 2014-09-04T08:29:33Z | - |
dc.date.available | 2014-09-04T08:29:33Z | - |
dc.date.created | 2014-06-30 | - |
dc.date.created | 2014-06-30 | - |
dc.date.issued | 2014-05 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.6, no.10, pp.7751 - 7758 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/189998 | - |
dc.description.abstract | We report boron nitride nanoflakes (BNNFs), for the first time, as a nanofiller for polymer electrolyte membranes in fuel cells. Utilizing the intrinsic mechanical strength of two-dimensional (2D) BN, addition of BNNFs even at a marginal content (0.3 wt %) significantly improves mechanical stability of the most representative hydrocarbon-type (HC-type) polymer electrolyte membrane, namely sulfonated poly(ether ether ketone) (sPEEK), during substantial water uptake through repeated wet/dry cycles. For facile processing with BNNFs that frequently suffer from poor dispersion in most organic solvents, we non-covalently functionalized BNNFs with 1-pyrenesulfonic acid (PSA). Besides good dispersion, PSA supports efficient proton transport through its sulfonic functional groups. Compared to bare sPEEK, the composite membrane containing BNNF nanofiller exhibited far improved long-term durability originating from enhanced dimensional stability and diminished chronic edge failure. This study suggests that introduction of properly functionalized 2D BNNFs is an effective strategy in making various HC-type membranes sustainable without sacrificing their original adventurous properties in polymer electrolyte membrane fuel cells. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | PROTON-EXCHANGE MEMBRANES | - |
dc.subject | POLY(ETHER ETHER KETONE) | - |
dc.subject | THERMAL-CONDUCTIVITY | - |
dc.subject | GRAPHENE SHEETS | - |
dc.subject | MECHANICAL-PROPERTIES | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | EPOXY COMPOSITES | - |
dc.subject | WATER | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | COPOLYMERS | - |
dc.title | Enhanced Durability of Polymer Electrolyte Membrane Fuel Cells by Functionalized 2D Boron Nitride Nanoflakes | - |
dc.type | Article | - |
dc.identifier.wosid | 000336639200094 | - |
dc.identifier.scopusid | 2-s2.0-84901684281 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 7751 | - |
dc.citation.endingpage | 7758 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/am5010317 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Jeon, Seokwoo | - |
dc.contributor.localauthor | Hong, Soon Hyung | - |
dc.contributor.localauthor | Park, Jung-Ki | - |
dc.contributor.localauthor | Choi, Jang Wook | - |
dc.contributor.nonIdAuthor | Park, Kwang Hyun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | boron nitride | - |
dc.subject.keywordAuthor | composite membrane | - |
dc.subject.keywordAuthor | durability | - |
dc.subject.keywordAuthor | nanoflake | - |
dc.subject.keywordAuthor | polymer electrolyte membrane fuel cell | - |
dc.subject.keywordPlus | PROTON-EXCHANGE MEMBRANES | - |
dc.subject.keywordPlus | POLY(ETHER ETHER KETONE) | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | THERMAL-CONDUCTIVITY | - |
dc.subject.keywordPlus | GRAPHENE SHEETS | - |
dc.subject.keywordPlus | EPOXY NANOCOMPOSITES | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | COPOLYMERS | - |
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