• Time varying emission spectroscopy to characterize electrode deterioration. Highest rate of anode degradation occurring during arc jet startup. Characteristics the plasma estimated using a line-by-line radiation code. Analysis flow profile. The second generation miniature Arc Jet (mARC II) is subscale at NASA Ames Research Center that undergoing initial characterization. During its operation,...

A split anode calorimeter (SAC) has been developed for the measurement of plasma transferred arc (PTA) energy density. novel aspect is use a laser beam with well-defined profile which was first measured using commercial diagnosis system and used to calibrate SAC. The SAC temperature data generated showed same by system. This confirmed accuracy method its suitability measuring distribution an el...

In this paper, rutile TiO2 nanorod arrays are fabricated by a template-free method and proposed as a promising anode for aqueous Li-ion battery. The as-prepared TiO2 nanorod arrays exhibited reversible Li-ion insertion/extraction ability in aqueous LiOH electrolyte. Moreover, galvanostatic charge/discharge test results demonstrated that the reversible capacity of TiO2 nanorods could reach about...

Topological state of matter and lithium batteries are currently two hot topics in science and technology. Here we combine these two by exploring the possibility of using all-carbon-based porous topological semimetal for lithium battery anode material. Based on density-functional theory and the cluster-expansion method, we find that the recently identified topological semimetal bco-C16 is a prom...

Na-ion batteries are emerging as one of the most promising energy storage technologies, particularly for grid-level applications. Among anode candidate materials, hard carbon is very attractive due to its high capacity and low cost. However, hard carbon anodes often suffer a low first-cycle Coulombic efficiency and fast capacity fading. In this study, we discover that doping graphene oxide into...

Anode-supported micro-tubular solid oxide fuel cell (SOFC) offers many advantages over the electrolyte and cathode-supported confgurations in terms of simplicity, reliability, and efciency. In such design, the anode substrates should possess a highly porous structure, provide active sites reaction as well as serving good mechanical strength. This structure is desired to ...

nickel can also be determined using a copper anode. Conditions are similar to those for nickel except that the applied potentials must be 200 mV more positive than for nickel. The anodic reaction rate constants with copper are typically somewhat greater than with nickel, however the applied potential results in increased background noise so that copper offers no signal-to-noise advantage over n...

Cu ion was electrodeposited potentiostatically in 0.05 M CuSO4 aqueous solutions onto a foreign substrate of TiN film sputtered on a stainless steel sheet. The amount of electricity was limited to 31.8 mC cm , which corresponds to a 10 nm thick film, deposited uniformly without any void formation. Two different electrolytic cell configurations were designed in order to discuss quantitatively th...

Anode-less batteries are a promising innovation in energy storage technology, eliminating the need for traditional anodes and offering potential improvements efficiency capacity. Here, we have fabricated tested two types of anode-less pouch cells, first using solely copper negative current collector other same but coated with nucleation seed ZnO layer. Both cells used all-solid-state electrolyt...