Hydrogen Conversion in Nanocages

Fabrication of cubic PtCu nanocages and their enhanced electrocatalytic activity towards hydrogen peroxide

Cubic PtCu nanocages (NCs) were successfully synthesized through a redox reaction using cuprous oxide (Cu2O) as a sacrificial template and reducing agent. The porous PtCu NCs were composed of amounts of PtCu nanograins with an average particle size of 2.9 nm. The electrocatalytic performance of the PtCu NC electrode towards H2O2 was studied by cyclic voltammetry (CV) and chronoamperometry. The ...

Nuclear conversion theory: molecular hydrogen in non-magnetic insulators

The hydrogen conversion patterns on non-magnetic solids sensitively depend upon the degree of singlet/triplet mixing in the intermediates of the catalytic reaction. Three main 'symmetry-breaking' interactions are brought together. In a typical channel, the electron spin-orbit (SO) couplings introduce some magnetic excitations in the non-magnetic solid ground state. The electron spin is exchange...

New ortho-para conversion mechanism in dense solid hydrogen.

Analysis of recent measurements of striking changes in the rate of ortho-para conversion of solid H(2) up to 58 GPa shows that the conversion mechanism must differ from that at ambient pressure. A new conversion mechanism is identified in which the emerging excitations are coupled to the converting molecules via electric quadrupole-quadrupole rather than nuclear spin-spin interactions. The latt...

Energy Carriers and Conversion Systems with Emphasis on Hydrogen

Metal-tunable nanocages as artificial chemosensors.

Supramolecular assembly of predesigned organic and inorganic building blocks is an excellent tool for constructing welldefined nanosized molecular cavities. The nanocages can encapsulate and stabilize guest substrates, and chemical transformations can be catalyzed within these “microreactor” cagelike structures. Recently, synthetic strategies for constructing functional coordination cages with ...