Development of novel supported metal catalysts with self-controlling function for suppression of thermal runaway of catalytic reactions

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560944
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Catalyst/Resource chemical process
• Research Institution: University of Yamanashi
• Principal Investigator: MIYAO Toshihiro 山梨大学, 総合研究部, 教授 (90312090)
• Co-Investigator(Kenkyū-buntansha): HIGASHIYAMA Kazutoshi 山梨大学, 総合研究部, 教授 (10530090)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 暴走抑制 / 一酸化炭素メタン化反応 / 二酸化炭素メタン化反応 / 選択性制御 / ニッケル系触媒 / メソポーラスシリカ被覆 / 固体高分子形燃料電池 / 燃料改質反応

Outline of Final Research Achievements

In order to avoid a thermal runaway of a catalytic reaction, a catalyst with self-controlling function for the suppression of undesired reaction was investigated. Residual chlorine on alumina-supported nickel catalysts significantly suppressed CO2 methanation and the reverse water gas-shift reaction in the course of selective CO methanation. FT-IR measurements revealed that chlorine suppressed the dissociation of CO2 on the catalyst surface. Also, vanadium was effective for the selectivity control. A mesoporous silica-coated Ni/alumina-based catalyst was developed for the further development of the suppression of the thermal runaway reaction. The catalytic activity and CO removal ability of the Ni/AlVOx catalyst were significantly improved by the coating of mesoporous silica on the Ni/AlVOx. The Ni-V species transported from the Ni/AlVOx to the coating layer may also act as active sites for CO methanation.

Free Research Field

触媒化学