Control of novel pressure-induced interaction working between hydrogen and carbon, and evaluation of its mechanism

2014 Fiscal Year Final Research Report

• Project/Area Number: 24550150
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: Niigata University
• Principal Investigator: NAKAYAMA Atsuko 新潟大学, 研究推進機構 超域学術院, 准教授 (50399383)
• Co-Investigator(Kenkyū-buntansha): YAMADA Yuh 新潟大学, 自然科学系, 教授 (10242835) ; FUJIHISA Hiroshi 独立行政法人, 産業技術総合研究所計測フロンティア研究部門, 主任研究員 (90357913)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 高圧物性 / 炭素π電子系 / 水素 / 圧力有機構造変化 / 水素貯蔵 / グラフェン / グラファイト / 窒化ホウ素

Outline of Final Research Achievements

In order to understand the novel pressure-induced interaction between hydrogen and carbon π electron system having graphite structure, few layer graphene and hexagonal boron nitride were pressurized in the helium or hydrogen gas and their pressure-induced structural-change were carried out in situ. The electronic structure has the large difference between graphite and hexagonal boron nitride, however, both structures were influenced by hydrogen under pressure up to 3 GPa.
We also tried the DFT calculations of the structures of graphite and hexagonal boron nitride pressurized under high pressure hydrogen atmosphere. The results showed that both did not show hydrogen stage or slightly small amount of hydrogen was accommodated in the inter layers.

Free Research Field

高圧物性