In-situ activated hydrogen evolution by molybdate addition to neutral and alkaline electrolytes

In situ activation of a Ni catalyst with Mo ion for hydrogen evolution reaction in alkaline solution

In this study Ni catalyst have been activated during hydrogen evolution reaction (HER) by adding Mo ions into the alkaline electrolyte. After dissolving different amounts of ammonium molybdate in the 1M NaOH as electrolyte, Ni catalyst was used as cathode for HER. Afterwards a comparison between hydrogen overpotential measured in Ni catalyst with and without in situ activation has been made; th...

Electrocatalysts for Hydrogen Evolution in Alkaline Electrolytes: Mechanisms, Challenges, and Prospective Solutions

Hydrogen evolution reaction (HER) in alkaline medium is currently a point of focus for sustainable development of hydrogen as an alternative clean fuel for various energy systems, but suffers from sluggish reaction kinetics due to additional water dissociation step. So, the state-of-the-art catalysts performing well in acidic media lose considerable catalytic performance in alkaline media. This...

LOCAL INTERSTELLAR NEUTRAL HYDROGEN SAMPLED IN SITU BY IBEX Citation

Hydrogen gas is the dominant component of the local interstellar medium. However, owing to ionization and interaction with the heliosphere, direct sampling of neutral hydrogen in the inner heliosphere is more difficult than sampling the local interstellar neutral helium, which penetrates deep into the heliosphere. In this paper, we report on the first detailed analysis of the direct sampling of...

Hydrogen/oxygen (Air) fuel cells with alkaline electrolytes

Molecular-level mechanisms of quartz dissolution under neutral and alkaline conditions in the presence of electrolytes

Copyright © 2014 by The Geochemical Society of Japan. Strandh et al., 1997), reactivity of different surface sites (e.g., Blum and Lasaga, 1988, 1991; Blum et al., 1990; Dove, 1994; Furrer and Stumm, 1986; Lasaga, 1992; Pelmenschikov et al., 2000; Raghavachari and Rohlfing, 1991; Bickmore et al., 2008; Wallace et al., 2010), the extent of undersaturation of the solution (e.g., Dove et al., 2005...