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This research aims to develop a better carbon resistant anode compared to conventional Ni-BCZY anode for methane fueled protonic ceramic fuel cell (PCFC). Solid-state reaction process is used to prepare alloy Ni 1-x Cu x -BCZY anode in PCFC. Ni is doped with Cu for better carbon resistance. Results show that, Ni 0·9 Cu 0.1 -BCZY anode calcined at 800 °C for 0.5 h exhibit an electrical conductivity of 2054 S/cm at 600 °C, which is 8.4% less than traditional Ni-BCZY anode. XPS, and Raman data show that Ni 0·9 Cu 0.1 -BCZY anode exhibit resistance to carbon deposition compared to traditional anode. The best carbon deposition resistance is observed for the Ni 0·7 Cu 0.3 -BCZY sample. This work demonstrates the suppression of carbon deposition and inhibition of anode deformation in methane fueled PCFC with Ni 1-x Cu x -BCZY anode. This work is helpful for development of carbon-resistant materials for energy generation with solid oxide fuel cells. • Cu is doped in Ni-BCZY anode for increasing carbon deposition resistance (CDR). • Effects of Cu content on CDR and conductivity of anode are investigated. • EDS, XPS, EA and Raman spectroscopy are used to characterize CDR. • Increasing Cu content increases CDR, but reduces conductivity. [ABSTRACT FROM AUTHOR]

A printed compact size folded inverted-F antenna with simple configuration for mobile handset operating within the global system for mobile communication/personal communication system/digital communication system bands is initially proposed.To additionally cover the wireless local-area network frequency spectrum at 2.4 GHz, a narrow stub is protruded from the printed shorting wall. The excitation of these operating bands with desirable bandwidth is achieved by feeding a 50-Ω microstrip line to the folded radiating element through a via hole. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1045-1050, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25919 [ABSTRACT FROM AUTHOR]

A compact size planar microstrip-fed monopole antenna designed for mobile handset applications is proposed. To operate at global system for mobile communication (GSM)/global positioning system/digital communication system/personal communication system/universal mobile telecommunications system and 2.4-GHz wireless local-area network bands, a hybrid technique of joining the horizontal section of a T-monopole to an open-loop back coupling strip and loading a pair of monopole slot into the ground plane is used. Two operating bands are observed (along 3:1 VSWR) with the lower band covering only the GSM application, while the wide upper operating band covers the remaining applications. The effects on the antenna performances by tuning the various vital parameters have also been studied. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:910-915, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25889 [ABSTRACT FROM AUTHOR]