标题：In situ synthesis of TiH2layer on metallic titanium foil through gaseous hydrogen free acid-hydrothermal method
作者：Ren, Na ;Wang, Guancong ;Liu, Hong ;Ohachi, Tadashi
作者机构：[Ren, Na ;Wang, Guancong ;Liu, Hong ] State Key Laboratory of Crystal Materials, Shandong University, 27 Shandanan Road, Jinan, Shandong 250100, China 更多
来源：Materials Research Bulletin
摘要：A novel strategy for synthesis of TiH2layer on surface of metallic titanium by using an acid-hydrothermal method was proposed. During the synthesis process, no any elemental hydrogen was involved. X-ray powder diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy results confirmed that a TiH2layer of 20 μm thickness on a Ti foil surface can be formed in situ by an interface reaction of metallic titanium with sulfuric acid solution, hydrochloric acid, or phosphoric acid, which is a hydrogen self-storage process. By tuning reaction parameters, for example, concentration of acid, composition and morphology of TiH2-Ti hybrid materials can be adjusted. The TiH2layer on a metallic titanium surface can be decompounded completely heated below 400 C. This convenient, safe and low-cost method is a promising gaseous hydrogen free approach for the synthesis of hydride-based hydrogen storage materials. © 2013 Elsevier Ltd. All rights reserved.