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Articles 61 - 74 of 74
Full-Text Articles in Engineering
Temperature-Dependent Residual Stresses In Plasma Sprayed Electrolyte Thin-Film On The Cathode Substrate Of A Solid Oxide Fuel Cell, Kevin Huang, H. Harter
Temperature-Dependent Residual Stresses In Plasma Sprayed Electrolyte Thin-Film On The Cathode Substrate Of A Solid Oxide Fuel Cell, Kevin Huang, H. Harter
Kevin Huang
No abstract provided.
A Solid Oxide Fuel Cell Based On Sr- And Mg-Doped Lagao3 Electrolyte: The Role Of A Rare-Earth Oxide Buffer, Kevin Huang, John Goodenough
A Solid Oxide Fuel Cell Based On Sr- And Mg-Doped Lagao3 Electrolyte: The Role Of A Rare-Earth Oxide Buffer, Kevin Huang, John Goodenough
Kevin Huang
No abstract provided.
Superior Perovskite Oxide-Ion Conductor; Strontium- And Magnesium-Doped Lagao3: I, Phase Relationships And Electrical Properties, Kevin Huang, Robin Tichy, John Goodenough
Superior Perovskite Oxide-Ion Conductor; Strontium- And Magnesium-Doped Lagao3: I, Phase Relationships And Electrical Properties, Kevin Huang, Robin Tichy, John Goodenough
Kevin Huang
No abstract provided.
Promoting Electrocatalytic Activity Of A Composite Sofc Cathode La0.8Sr0.2Mno3+Δ/Ce0.8Gd0.2O2-Δ With Molten Carbonates, Yunhui Gong, Xue Li, Lingling Zhang, Whitney Tharp, Changyong Qin, Kevin Huang
Promoting Electrocatalytic Activity Of A Composite Sofc Cathode La0.8Sr0.2Mno3+Δ/Ce0.8Gd0.2O2-Δ With Molten Carbonates, Yunhui Gong, Xue Li, Lingling Zhang, Whitney Tharp, Changyong Qin, Kevin Huang
Kevin Huang
The effect of molten carbonates (MCs) on polarization resistance (RP), a direct measure of oxygen reduction reaction (ORR) activity, of a composite La0.8Sr0.2MnO3+δ/Ce0.8Gd0.2O2-δ (LSM/GDC) solid oxide fuel cell (SOFC) cathode has been systematically investigated in this study over a temperature range of 550–650°C and partial pressure of oxygen (pO2) span of 10−3 ∼ 1 atm. It is shown that the LSM/GDC cathode, either in the pristine or MC-modified states, can be generally modeled by two consecutive parallel circuits consisting of a resistance and a constant phase element (CPE). The high-frequency RP(HF)//CPE(HF) component is related to a charge-transfer process, while the …
Sr3<−3xNa3xSi3O9−1.5x (X = 0.45) As A Superior Solid Oxide-Ion Electrolyte For Intermediate Temperature-Solid Oxide Fuel Cells, Tao Wei, Preetam Singh, Yunhui Gong, John Goodenough, Yunhui Huang, Kevin Huang
Sr3<−3xNa3xSi3O9−1.5x (X = 0.45) As A Superior Solid Oxide-Ion Electrolyte For Intermediate Temperature-Solid Oxide Fuel Cells, Tao Wei, Preetam Singh, Yunhui Gong, John Goodenough, Yunhui Huang, Kevin Huang
Kevin Huang
We here report that a newly discovered superior oxide-ion conductor Sr3−3xNa3xSi3O9−1.5x (x = 0.45) (SNS) demonstrates full potential to be a practical solid electrolyte for intermediate temperature-solid oxide fuel cells (IT-SOFCs). It exhibits the highest oxide-ion conductivity with the lowest activation energy among all the chemically stable solid oxide-ion conductors reported. The ionic conductivity is stable over a broad range of partial pressures of oxygen (10−30 to 1 atm) for an extended period of time. A SOFC based on a 294 μm thick SNS-electrolyte produces peak power densities …
Study Of A Renewable Biomass Fueled Sofc: The Effect Of Catalysts, Yunhui Gong, Kevin Huang
Study Of A Renewable Biomass Fueled Sofc: The Effect Of Catalysts, Yunhui Gong, Kevin Huang
Kevin Huang
No abstract provided.
Investigations On Commercially Available Mgopsz Electrolytes With Y2O3 Fsz Coating For Low Oxygen Determination In Liquid Steel, Kevin Huang, Yuhua Xia, Weijiang Wu, Qingguo Liu, Wen Liu
Investigations On Commercially Available Mgopsz Electrolytes With Y2O3 Fsz Coating For Low Oxygen Determination In Liquid Steel, Kevin Huang, Yuhua Xia, Weijiang Wu, Qingguo Liu, Wen Liu
Kevin Huang
No abstract provided.
P–N Heterojunction On Ordered Zno Nanowires/Polyaniline Microrods Double Array, Qunwei Tang, Lin Lin, Xuan Zhao, Kevin Huang, Jihuai Wu
P–N Heterojunction On Ordered Zno Nanowires/Polyaniline Microrods Double Array, Qunwei Tang, Lin Lin, Xuan Zhao, Kevin Huang, Jihuai Wu
Kevin Huang
No abstract provided.
Atomic Layer Deposition Functionalized Composite Sofc Cathode La0.6Sr0.4Fe0.8Co0.2O3-Δ -Gd0.2Ce0.8O1.9: Enhanced Long-Term Stability, Yunhui Gong, Rajankumar Patel, Xinhua Liang, Diego Palacio, Xueyan Song, John Goodenough, Kevin Huang
Atomic Layer Deposition Functionalized Composite Sofc Cathode La0.6Sr0.4Fe0.8Co0.2O3-Δ -Gd0.2Ce0.8O1.9: Enhanced Long-Term Stability, Yunhui Gong, Rajankumar Patel, Xinhua Liang, Diego Palacio, Xueyan Song, John Goodenough, Kevin Huang
Kevin Huang
No abstract provided.
Can Silver Be A Reliable Current Collector For Electrochemical Tests?, Yunhui Gong, Changyong Qin, Kevin Huang
Can Silver Be A Reliable Current Collector For Electrochemical Tests?, Yunhui Gong, Changyong Qin, Kevin Huang
Kevin Huang
The true functionality of a current collector employed in electrochemical cells is to ensure a low- resistance steady electrons flow between the cell and instrumentation without involving in any local electrochemical reactions of the electrode. In this study, we investigated the effect of curing temperature of a common current collector, silver, on the polarization area specific resistance (ASR) of a cathode. The results explicitly showed that at least one order of magnitude lower ASR for a cathode with Ag cured at 800°C than that cured at 650°C of the same cathode configuration. Microscopic analysis of the 800°C-cured cells revealed a …
Mixed Conductors For Electrochemical Co2 Separation, Nansheng Xu, Lingling Zhang, Hailei Zhao, Kevin Huang
Mixed Conductors For Electrochemical Co2 Separation, Nansheng Xu, Lingling Zhang, Hailei Zhao, Kevin Huang
Kevin Huang
One of the major concerns of consuming fossil fuels to produce useful form of energy is the emission of CO2, a greenhouse gas that can cause climate change and ultimately threaten the survival of humanity. Controlling CO2-emission is an urgent but the only practical solution to stabilize CO2 concentration in the atmosphere. In this paper, we report our effort to capture CO2 from a simulated flue gas by utilizing a dual-phase mixed electron and carbonate-ion conducting (MECC) membrane. The obtained CO2 flux density is the highest among the published dual-phase carbonate systems. These results demonstrate the Ag-MC dual-phase composite as …
Effective Ionic Conductivity Of A Novel Intermediate-Temperature Mixed Oxide-Ion And Carbonate-Ion Conductor, Xue Li, Guoliang Xiao, Kevin Huang
Effective Ionic Conductivity Of A Novel Intermediate-Temperature Mixed Oxide-Ion And Carbonate-Ion Conductor, Xue Li, Guoliang Xiao, Kevin Huang
Kevin Huang
A systematic investigation on the effective ionic conductivity (σm) of a novel intermediate-temperature mixed oxide-ion and carbonate-ion conductor MOCC consisting of a ceria phase and a carbonate phase is reported. The study explicitly shows that the observed remarkable temperature-dependent σm is primarily the result of softening/melting of the carbonate phase as the physical state of the carbonate phase transforms from solid, softened to molten. Differential scanning calorimetry analysis complements the understanding of the observed electrical behavior by revealing temperatures of melting and solidification in agreement with the onset temperatures of σm. In addition, the measured σmagrees reasonably well with that …
Fuel Cells With Doped Lanthanum Gallate Electrolyte, Man Feng, John Goodenough, Kevin Huang, Christopher Milliken
Fuel Cells With Doped Lanthanum Gallate Electrolyte, Man Feng, John Goodenough, Kevin Huang, Christopher Milliken
Kevin Huang
No abstract provided.
Synthesis Of A Homogeneously Porous Solid Oxide Matrix With Tunable Porosity And Pore Size, Lingling Zhang, Zhengping Mao, James Thomason, Siwei Wang, Kevin Huang
Synthesis Of A Homogeneously Porous Solid Oxide Matrix With Tunable Porosity And Pore Size, Lingling Zhang, Zhengping Mao, James Thomason, Siwei Wang, Kevin Huang
Kevin Huang
No abstract provided.