WebApr 1, 2013 · The interface formation between perylene red (PR) and ruthenium or iridium OER catalysts has been studied systematically by XPS and STEM. The OER catalyst over-layers with thicknesses ranging from ~0.1 to ~50 nm were vapor deposited onto PR ex-situ.As seen by STEM, Ru and Ir form into nanoparticles, which agglomerate with … WebHydroxide contamination peak is due to the reaction with residual water in the lab air or the vacuum. The O (1s) BE of the hydroxide (water) contamination normally appears 0.5 to …
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WebThe major advantage of PUR/PIR compared to other insulation materials is the insulation value. The Lambda value of PUR/PIR is situated between 0.022 to 0.032 W/mK. This … WebThe Great Alternative - Expanded Polystyrene. Unlike ISO and XPS insulation, Expanded Polystyrene (EPS) does not suffer from off gassing or thermal drift like the others. EPS rigid insulation does not derive its R-value from trapped gasses. It traps regular atmospheric air. st paul\u0027s cathedral tickets discount
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WebWater vapour diffusion resistance: EPS has a water vapour diffusion resistance of 30-70, whereas XPS reaches 80-250. EPS is slightly more permeable to air and moisture, … WebVarious figures: example of 95 MJ/kg (for XPS, calculated by Ecoinvent using data from leading factories in Germany and USA) 3. More: Thermal properties of insulation..... Rigid … WebFeb 7, 2014 · Compressive strength and panel sizes. Although both XPS and EPS are available in compressive strengths of 15, 25, 40, and 60 psi, XPS also comes in 100 psi. If the job requires 100 psi compressive strength, it needs XPS. Because of market dominance, XPS is more widely available from distributors and in the insulation marketplace as a whole. rothco one hole polar fleece balaclava