We present empirical formulae for the electron density vs. line profile widths and shifts developed from precise measurements of hydrogen Balmer series alpha and beta emissions for diagnostics of laser-induced plasma. The formulae are for the Stark width and Stark red shift of the Hα line, as well as for the Stark width and peak separation of the Hβ line and are tested using measurements of Hα ...

Non-supported microporous silica (amorphous) and titania thin films were made by the polymeric gel route. The titania system consisted of particles smaller than 5 nm. Reproducible modification of supported y-alumina films with silica demands a strict control of every modification step. Silica films of 3060 nm thickness on top of and presumably partly inside the y-alumina film were realised. The...

Multiple theories on hydrogen isotope fusion in Pd metal have been developed over the years. Among other important factors, the high concentration of H(D) atoms and their close proximity to each other within a host lattice are important. We use numerical modeling to investigate conditions favorable to lower H-H (D-D) separation. This separation depends on the background charge density within th...

The thermal cycling absorption process (TCAP) is a semi-continuous chromatographic process for hydrogen isotope separation developed at the Savannah River Technology Center (SRTC) of the Savannah River Site (SRS) to support the tritium production and recycling operations for the national defense program. Hydrogen has three isotopes—protium, deuterium, and tritium. Among these, protium is known ...

The title compound, C(16)H(19)NO(5), which was synthesized from p-meth-oxy-cinnamic acid, has intra-molecular O-H⋯O and N-H⋯O hydrogen-bonding inter-actions. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds and aromatic π-π stacking inter-actions [minimum ring centroid-centroid separation = 3.790 (1) Å].

The title compound, C(7)H(4)Br(2)O(3), has an intra-molecular O-H⋯O=C hydrogen bond and aggregates to form hydrogen-bonded dimers via O-H⋯O inter-actions. The formation of zigzag one-dimensional mol-ecular tapes via C-H⋯Br inter-actions and π-π stacking inter-actions (inter-planar separation = 3.42 Å) completes the crystal structure.

In the title mol-ecule, C(16)H(16)O(3), the ring system is planar and an intramolecular hydrogen bond is present. The mol-ecular packing is dominated by an inter-molecular hydrogen bond and by π-stacking inter-actions [inter-planar separation 3.8012 Å].

The purpose of this project is to develop hydrogen and CO2 selective membranes to allow combination of natural gas reforming with H2 or CO2 separation in separation enhanced reactors, i.e. membrane reactors, for carbon-free hydrogen production or electricity generation. To achieve this, the project comprises three distinct tasks: system and reactor analysis, membrane materials research and cata...

We theoretically extend the applications of graphdiyne, an experimentally available one-atom-thin carbon allotrope, to nanoelectronics and superior separation membrane for hydrogen purification on a precise level.