Hydrogen Storage Properties of Nanostructured Nitrides

2014 Fiscal Year Final Research Report

• Project/Area Number: 24561057
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Energy engineering
• Research Institution: Yamaguchi University
• Principal Investigator: HAYAO IMAMURA 山口大学, 理工学研究科, 教授 (60136166)
• Co-Investigator(Kenkyū-buntansha): SAKATA Yoshihisa 山口大学, 大学院理工学研究科, 准教授 (40211263)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 水素貯蔵 / 窒化物 / カルシウム窒化物 / 窒化炭素

Outline of Final Research Achievements

It has been observed that nanostructured calcium nitride(Ca2N) obtained by the thermal decomposition of calcium amide(Ca(NH2)2) shows the hydrogen storage capacity under mild conditions. To enhance further the hydrogen storage properties of the calcium nitride, highly dispersed Ca2N on activated carbon and Ca2N-based nanocomposite materials milled with different catalysts have been also investigated. The characterization of the nanostructured calcium nitride as hydrogen storage materials was performed by using XRD, TDS, DSC and FT-IR.
Carbon nitride(g-C3N4) synthesized by melamine, urea or cyanuric acid as a raw material has a similar layered structure to graphite with a triazine ring, but shows low hydrogen storage capacity due to low surface area. Moreover, expecting the change in hydrogen storage properties with synthesis conditions of g-C3N4, I examine g-C3N4 ball-milled with catalytically active metals, dispersd on carriers or treated with acid.

Free Research Field

エネルギー学