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- Churchard, A. J., et al.
(författare)
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A multifaceted approach to hydrogen storage
- 2011
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Ingår i: Physical Chemistry Chemical Physics. - : Royal Society of Chemistry (RSC). - 1463-9084 .- 1463-9076. ; 13:38, s. 16955-16972
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Tidskriftsartikel (refereegranskat)abstract
- The widespread adoption of hydrogen as an energy carrier could bring significant benefits, but only if a number of currently intractable problems can be overcome. Not the least of these is the problem of storage, particularly when aimed at use onboard light-vehicles. The aim of this overview is to look in depth at a number of areas linked by the recently concluded HYDROGEN research network, representing an intentionally multi-faceted selection with the goal of advancing the field on a number of fronts simultaneously. For the general reader we provide a concise outline of the main approaches to storing hydrogen before moving on to detailed reviews of recent research in the solid chemical storage of hydrogen, and so provide an entry point for the interested reader on these diverse topics. The subjects covered include: the mechanisms of Ti catalysis in alanates; the kinetics of the borohydrides and the resulting limitations; novel transition metal catalysts for use with complex hydrides; less common borohydrides; protic-hydridic stores; metal ammines and novel approaches to nano-confined metal hydrides.
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| 6. |
- Romanszki, Lorand, 1980, et al.
(författare)
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Hydrogen storage in thin metallic films
- 2009
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Ingår i: Trends in Nanotechnology 2009, Oviedo, Spain, September 1-5 2009.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 7. |
- Romanszki, Lorand, 1980, et al.
(författare)
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Hydrogen storage – problems and solutions
- 2009
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Ingår i: 6th International Congress of Young Chemists, Kraków, Poland, October 15-19, 2009.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 8. |
- Venkataraman, Nagaiyanallur V., et al.
(författare)
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Spatial tuning of the metal work function by means of alkanethiol and fluorinated alkanethiol gradients
- 2009
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Ingår i: Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 113:14, s. 5620-5628
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Tidskriftsartikel (refereegranskat)abstract
- Surface-chemical gradients composed of self-assembled monolayers (SAM) of deeanethiol (DT) and a partially fluorinated decanethiol (PFDT) on gold, exhibiting gradual changes in surface concentration of one or both components, have been prepared by a simple, controlled-immersion process. Infrared spectroscopic studies on a single-component PFDT gradient indicate a change in average molecular orientation with increasing surface coverage, whereas on a two-component gradient, the orientation remains invariant over the entire length of the gradient. X-ray photoelectron spectroscopic measurements on a single-component PFDT gradient show a systematic decrease in the fluorine (F Is) binding energy with increasing surface coverage, whereas a single-component DT gradient shows an increase in the carbon (C Is) binding energy. In two-component (DT-PFDT) gradients, the molar ratios of the two components at any particular location on the sample surface determine the magnitude of the binding-energy shifts at that location. Such shifts, which are on the order of 1 eV, are shown to be a consequence of work-function changes in the underlying gold upon SAM formation. These results are discussed in light of the surface-potential measurements on a DT-PFDT gradient by Kelvin Probe Force Microscopy and XP spectra acquired on "floating" and grounded samples.
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