The changes in the surface phase and the morphology of nickel–yttria stabilized zirconia (YSZ) cermet anodes for solid oxide fuel cells (SOFCs) upon exposure to a fuel containing 100 parts per million (ppm)-level hydrogen sulfide (H2S) at elevated temperatures were investigated using in situ Raman microspectroscopy as well as ex situ techniques such as X-ray diffraction (XRD), scanning electron...

This paper aims to characterize and test the stability of sulfuric natural water (SNW) from Sebau East Lombok as a sulfidation agent for several dissolved metals (Mn, Cu, Pb Fe). The parameters used SNW characterization are temperature, pH, DO, BOD, COD, TSS, TDS. sample was divided into two categories, namely with preservation treatment without preservation, study SNW. determined by observing ...

Abstract Solid solutions of oxysulfides (RE0.95Ln0.05)2O2S (RE = La, Y; Ln Ho, Tm) were obtained by hydrogen reduction the co-precipitated sulfates followed sulfidation reaction products. The crystal chemical characteristics compounds refined Rietveld method. Morphological certification particles in dynamics synthesis was performed. Most produced reactions have a cut that indicates formation co...

In order to form model aluminide coatings for studying critical issues related to their high temperature oxidation and corrosion performance, a laboratory chemical vapor deposition (CVD) procedure is being used to more rigorously control the coating process in terms of composition, purity and microstructure. One ferritic (Fe-9Cr1Mo) and one austenitic alloy (304L) were selected as substrate mat...

Experimental modeling of ankerite–pyrite interaction was carried out on a multi-anvil high-pressure apparatus “split sphere” type (6.3 GPa, 1050–1550 °C, 20–60 h). At T ? 1250 the formation pyrrhotite, dolomite, magnesite, and metastable graphite established. higher temperatures, generation two immiscible melts (carbonate sulfide ones), as well crystallization diamond growth seeds, occurred. It...

The development of noble-metal-free electrocatalysts is regarded as a key factor for realizing industrial-scale hydrogen production powered by renewable energy sources. Inspired nature, which uses Fe- and Ni-containing enzymes efficient generation, Fe/Ni-containing chalcogenides, such oxides sulfides, received increasing attention promising to produce hydrogen. We herein present novel synthetic...