Proton conducting titanate, polymer nano-composite membrane including the same, and fuel cell adopting the polymer nano-composite membrane
申请人:Kim Hae-kyoung
公开号:US20070053826A1
公开(公告)日:2007-03-08
A proton conducting titanate includes titanate and a sulfonic acid group-containing moiety having proton conductivity introduced into the surface of the titanate, in which the sulfonic acid group-containing moiety is directly bound to the titanate via an ether bond (—O). A polymer nano-composite membrane includes the proton conducting titanate, and a fuel cell includes the polymer nano-composite membrane. The proton conducting titanate is provided with a sulfonic acid functional group having proton conductivity, which increases the proton conductivity of the polymer nano-composite membrane. The polymer nano-composite membrane includes the proton conducting titanate, and thus can have a controllable degree of swelling in a methanol solution, and the transmittance of the polymer nano-composite membrane can be reduced. The polymer nano-composite membrane can be used as a proton conducting membrane in fuel cells to improve the thermal stability, energy density, and fuel efficiency of the fuel cells.
Composite film, flexible substrate including the composite film, and organic light emitting device including the flexible substrate
申请人:Lim Jin-O
公开号:US20110193068A1
公开(公告)日:2011-08-11
A composite film, a flexible substrate, and an organic light emitting device, the composite film including a composite including a sulfonic acid group containing moiety connected by an ether linkage (—O—) to an inorganic material having a nano-sized interlayer distance.