Herakles

Snpe Materiaux Energetiques

Eurenco

Joel Renouard

Pierre Yvart

Jean-Philippe Goudon

Christian Perut

Jean-Marc Bouchez

Florent Muscatelli

Hugues Rocton

Helene Blanchard

Nancy Desgardin

The main subject of the present invention are solid compounds capable of generating hydrogen by a self-sustaining combustion reaction. Their composition comprises borazane and/or polyaminoborane and at least one inorganic oxidant, advantageously chosen from ammonium nitrate, alkali metal nitrates, alkaline-earth metal nitrates, metal nitrates, metal oxides, oxidants of the family of dinitramines and mixtures thereof. It also relates to the generation of hydrogen by self-sustaining combustion of at least one such compound.

Solid compounds, self-sustaining combustion hydrogen generators containing borazane and/or polyaminoborane and at least one inorganic oxidant, and method for generating hydrogen

The present invention relates to a method for crystallizing ammonium dinitramide (ADN), through spontaneous nucleation and crystal growth, from a solution containing said ammonium dinitramide (AND) dissolved in a solvent. Said solvent characteristically has a viscosity greater than or equal to 0.25 Pa s (250 cP) when said spontaneous nucleation is implemented. The ADN crystals obtained by said method have a median shape factor of 1 to 1.5 and are perfectly suitable for placement in the composition of energy materials.

Method for obtaining ADN crystals through crystallization in a viscous medium

The invention relates to a solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, this composition being characterized in that it comprises an alkali metal borohydride or alkaline earth metal borohydride and a perchlorate-based oxidizing salt corresponding to the general formula SClOin which X represents the NHgroup, an alkali metal or an alkaline earth metal.

Solid composition, hydrogen generating method, and proton exchange membrane fuel cell

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Saint Martin en Biere, France

Joel Renouard