Development of hydrothermal stability of mesoporous material

介孔材料水热稳定性研究进展

• 批准号: 23560915
• 负责人: NAGANO Takayuki
• 金额: $ 3.33万
• 依托单位: Japan Fine Ceramics Center
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560915/
• 关键词: アルミナ; シリカ; メソポーラス; 水蒸気; 多孔質; セラミックス; 構造機能材料; 反応分離工学; 化学工学

The starting mixture for synthesizing the mesoporous materials was prepared as follows. In preparation of A solution, 20.837 g of TEOS was dissolved in 4 ml of deionized water and HCl. After stirring 30 min, HCl was added. In preparation of B solution, 7.2 g of Puronic P123 was dissolved in 10 ml of deionized water and 10 ml of ethanol. After stirring 30 min, HCl was added. The A and B solutions were mixed with 20 ml of water and 20 ml of ethanol (solution C). The 15 ml of solution C and 5 ml of polyvinyl alcohol solution were mixed as a dip-coating solution. An alpha-Al2O3 porous tubular was used as the substrate. After dipping, the membrane was rapidly dried in vacuum desiccator using a vacuum pump. It was then calcined at 1073 K for 2 h. The pore size distribution was evaluated by capillary condensed method. The pores was consisted of the disappearance of tri-block copolymer (1.8 nm) and the modification of pores on porous support (12 nm).

合成介孔材料的起始混合物制备如下。在A溶液的制备中，将20.837 g正硅酸乙酯溶解在4ml去离子水和盐酸中。搅拌30min后，加入盐酸。在B液的制备中，将7.2g的紫罗兰素P123溶解在10ml去离子水和10ml乙醇中。搅拌30min后，加入盐酸。将A和B溶液与20毫升水和20毫升乙醇(C溶液)混合。将15毫升C溶液和5毫升聚乙烯醇溶液混合，作为浸渍包衣溶液。采用α-Al_2O_3多孔管作为衬底。浸渍后，用真空泵在真空干燥器中快速干燥。然后在1073K下焙烧2 h，用毛细管凝聚法测定其孔径分布。孔洞由三嵌段共聚物的消失(1.8 nm)和多孔载体上的孔洞修饰(12 Nm)组成。

项目成果

対向拡散CVD法を用いたアモルファスシリカ系水素分離膜の開発

采用反扩散CVD法开发非晶态二氧化硅氢分离膜

• 发表时间: 2012
• 期刊: マテリアルインテグレーション
• 作者: T. Nagano;K. Sato;永野孝幸
• 通讯作者: 永野孝幸

高温水蒸気雰囲気におけるアモルファスシリカ系水素選択透過膜の劣化メカニズム

非晶态二氧化硅基氢选择性渗透膜在高温蒸汽气氛中的降解机理

• 发表时间: 2012
• 作者: 永野孝幸;佐藤功二
• 通讯作者: 佐藤功二

Degradation mechanism of H_2-permselective amorphous silica membrane

H_2选择性渗透无定形二氧化硅膜的降解机理

• 发表时间: 2014
• 期刊: J. Mater Sci.
• 作者: T. Nagano;K. Sato
• 通讯作者: K. Sato

Pore size control of amorphous silica membrane synthesized by chemical vapor deposition

化学气相沉积法合成的无定形二氧化硅膜的孔径控制

• 作者: 永野孝幸;佐藤功二;Takayuki Nagano
• 通讯作者: Takayuki Nagano