%0 Journal Article
%A Zhi, M.
%A Lee, S.
%A Miller, N.
%A Menzler, N.H.
%A Wu, N.
%T An intermediate-temperature solid oxide fuel cell with electrospun nanofiber cathode
%J Energy & environmental science
%V 5
%@ 1754-5692
%C Cambridge
%I RSC Publ.
%M PreJuSER-20874
%P 7066 - 7071
%D 2012
%Z This work was supported by the National Energy Technology Laboratory's on-going research in fuel cell project DE-FE0000400 under the URS Corporation contract and West Virginia State Research Challenge Grant Energy Materials Program (EPS08-01). The authors are grateful for the helpful discussion with Dr Kirk Gerdes at NETL and Fanke Meng and Savan Suri at WVU for characterization assistance.
%X Lanthanum strontium cobalt ferrite (LSCF) nanofibers have been fabricated by the electrospinning method and used as the cathode of an intermediate-temperature solid oxide fuel cell (SOFC) with yttria-stabilized zirconia (YSZ) electrolyte. The three-dimensional nanofiber network cathode has several advantages: (i) high porosity; (ii) high percolation; (iii) continuous pathway for charge transport; (iv) good thermal stability at the operating temperature; and (v) excellent scaffold for infiltration. The fuel cell with the monolithic LSCF nanofiber cathode exhibits a power density of 0.90 W cm(-2) at 1.9 A cm(-2) at 750 degrees C. The electrochemical performance of the fuel cell has been further improved by infiltration of 20 wt% of gadolinia-doped ceria (GDC) into the LSCF nanofiber cathode. The fuel cell with the LSCF-20% GDC composite cathode shows a power density of 1.07 W cm(-2) at 1.9 A cm(-2) at 750 degrees C. The results obtained show that one-dimensional nanostructures such as nanofibers hold great promise as electrode materials for intermediate-temperature SOFCs.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000303251500049
%R 10.1039/c2ee02619h
%U https://juser.fz-juelich.de/record/20874