Preparation of highly-active CO2 methanation catalysts and investigation of their practical use

高活性CO2甲烷化催化剂的制备及其实用化研究

• 批准号: 23350073
• 负责人: ABE TAKAYUKI
• 金额: $ 12.48万
• 依托单位: University of Toyama
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23350073/
• 关键词: 環境; 二酸化炭素; 触媒

Temperature of CO2 methanation reaction (CO2 + 4H2 -> CH4 + 2H2O) can be decreased using a catalyst (TiO2-supported Ru: Ru/TiO2) prepared by the polygonal barrel-sputtering method. This finding is useful to solve global warming. In this study, effects of the deposited metals and the supports on the CO2 methanation reaction were investigated. The density functional theory indicated that the energy barriers of the reaction steps such as CO + H -> CHO and CH3 + H -> CH4 decreased by the deposition of the smaller Ru particles, resulting in the low temperature of the CO2 methanation reaction. Furthermore, we remodeled the polygonal barrel-sputtering system, allowing the increase in the catalyst yield. It should be noted that even though the Ru/TiO2 catalysts were prepared by a large scale polygonal barrel-sputtering unit, the physical and catalytic properties of the prepared catalysts were similar to those prepared by the laboratory scale unit.

采用多边形桶溅射法制备的负载型Ru：Ru/TiO2光催化剂可降低CO2甲烷化反应(CO2+4H2-&GT；CH4+2H2O)的温度。这一发现对解决全球变暖问题很有用。本研究考察了熔敷金属和载体对CO2甲烷化反应的影响。密度泛函理论表明，较小Ru粒子的沉积降低了CO+H-&GT；CHO和CH3+H-&GT；CH4等反应步骤的势垒，导致CO2甲烷化反应温度较低。此外，我们还对多边形桶溅射系统进行了改造，从而提高了催化剂的产率。值得注意的是，尽管Ru/Ti02催化剂是由大型多边形桶溅射装置制备的，但所制备的催化剂的物理和催化性能与实验室规模的装置制备的催化剂相似。

项目成果

二酸化炭素の水素還元用触媒及び二酸化炭素の水素還元方法

二氧化碳氢还原催化剂及二氧化碳氢还原方法

• 发表时间: 2013

Methanol oxidation performance of electrocatalysts prepared by the polygonal barrel-sputtering method

多边形桶溅射法制备的电催化剂的甲醇氧化性能

• 发表时间: 2012
• 作者: Etsushi Tsuji;Ken-ichi Fukui and Akihito Imanishi;吉井賢資;Mitsuhiro Inoue
• 通讯作者: Mitsuhiro Inoue

Theoretical study on reaction analysis of Ru/TiO_2 catalyst based on density functional theory (DFT) : CO_2 molecule in a bent

基于密度泛函理论(DFT)的Ru/TiO_2催化剂反应分析理论研究:弯曲的CO_2分子

• 发表时间: 2011
• 期刊: Annual Report of Hydrogen Isotope Research Center, University of Toyama, Japan
• 作者: T.Shimazaki;S.Akamaru;T.Abe;M.Kubo
• 通讯作者: M.Kubo

二酸化炭素の水素還元方法

将二氧化碳还原为氢气的方法

• 发表时间: 2013

Preparation of Ni Nanoparticles on Submicron-Sized Al2O3 Powdery Substrate by Polyhedral-Barrel-Sputtering Technique and Their Magnetic Properties

• DOI: 10.1143/jjap.51.065201
• 发表时间: 2012-05
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: S. Akamaru;M. Inoue;Yuji Honda;A. Taguchi;T. Abe