Backbone NxH Compounds at High Pressures

Autor:	Goncharov, Alexander F., Holtgrewe, Nicholas, Qian, Guangrui, Hu, Chaohao, Oganov, Artem R., Somayazulu, M., Stavrou, E., Pickard, Chris J., Berlie, Adam, Yen, Fei, Mahmood, M., Lobanov, S. S., Konôpková, Z., Prakapenka, V. B.
Rok vydání:	2014
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Optical and synchrotron x-ray diffraction diamond anvil cell experiments have been combined with first principles theoretical structure predictions to investigate mixed N2 and H2 up to 55 GPa. We found the formation of oligomeric NxH (x>1) compounds using mechano- and photochemistry at pressures above 47 and 10 GPa, respectively, and room temperature. These compounds can be recovered to ambient pressure at T<130 K, whereas at room temperature, they can be metastable down to 3.5 GPa. Our results suggest new pathways for synthesis of environmentally benign high energy-density materials and alternative planetary ice. Comment: 26 pages, 12 figures, I table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1409.1181 Zobrazit plný text záznamu View this record from Arxiv