JP2013522164A - 細孔構造が制御された、高度に多孔性の、安定な金属酸化物を製造する方法 - Google Patents
細孔構造が制御された、高度に多孔性の、安定な金属酸化物を製造する方法 Download PDFInfo
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Abstract
【選択図】 なし
Description
前記溶媒不足の方法は、±10%、±20%、或いは±50%という小さな粒径分布が特徴である、著しくナノサイズの微結晶(2〜20nm)を生成し得る。更に、当該固体状態、溶剤不足の反応条件、および気体副生物の除去は、吸着水が単一層未満である、特異にクリーンなナノ粒子表面を持つ高純度物質を生成し得るのである。
細孔構造を制御する本発明のさらなる態様は、メソ多孔性金属酸化物物質の細孔サイズ、細孔容積、及び比表面積を、該物質のリンスによって、制御する方法である。前駆体をリンスするか、或いはか焼金属酸化物をリンスすると、リンスしない生成物からBET表面パラメータが変化する。
Claims (20)
- 高度に多孔性の安定な金属酸化物を製造する方法であって、
金属塩および塩基を混合する工程であって、溶媒不足前駆体混合物を形成するものである、前記混合する工程と、
前記溶媒不足前駆体内において前記金属イオンと前記塩基との反応を可能にする工程であって、中間体水酸化物生成物を形成するものである、前記可能にする工程と、
前記中間体水酸化物生成物が中間体ナノ粒子を形成するようにさせる工程と、
前記中間体ナノ粒子をか焼する工程であって、細孔構造を有する安定な金属酸化物を生成するものである、前記か焼する工程と、
を有する方法。 - 請求項1に記載の方法において、前記か焼は、350℃よりも高い温度で実行されるものである、方法。
- 請求項1に記載の方法において、前記か焼は、350℃の温度で少なくとも30分間実行されるものである、方法。
- 請求項1に記載の方法において、前記金属塩の陰イオンは、目的とする細孔径を形成するように選択されるものである、方法。
- 請求項1に記載の方法であって、この方法は、さらに、
か焼前に前記ナノ粒子を洗浄する工程を有するものである、方法。 - 請求項1に記載の方法において、前記溶剤不足前駆体混合物は、スラリーを形成するものである、方法。
- 請求項6に記載の方法において、前記スラリーは、水、アルコール、ケトン、エーテル、またはそれらの組み合わせからなる群から選択される希釈剤を含むものである、方法。
- 請求項7に記載の方法において、前記希釈剤は水であり、当該水は水:アルコキシドのモル比が1:1〜1:10の範囲でアルコキシドに含められるものである、方法。
- 請求項1に記載の方法であって、この方法は、さらに、
前記安定な金属酸化物の熱安定性を増大させるドーパントを含む工程を有するものである、方法。 - 請求項9に記載の方法において、前記ドーパントは、La、Ba、Si、Zr、Al、Tiの酸化物またはそれらの組み合わせからなる群から選択されるものである、方法。
- 請求項9に記載の方法において、前記前駆体混合物中のドーパント濃度は、1%〜30%の範囲にあるものである、方法。
- 請求項11に記載の方法において、前記細孔サイズは、2〜50nmの範囲にあるものである、方法。
- 請求項12に記載の方法において、前記細孔サイズの分布は、平均細孔径の±100%である、方法。
- 請求項1に記載の方法において、前記細孔構造は、50m2/g〜800m2/gの範囲のBET表面積、0.05cm3/g〜2.5cm3/gの範囲の細孔容積、及び/又は2nm〜50nmの範囲の細孔径を有するものである、方法。
- 請求項1に記載の方法において、前記細孔構造は、300m2/g〜700m2/gの範囲のBET表面積を有するものである、方法。
- 請求項1に記載の方法において、前記細孔構造は、0.5〜1.8cm3/gの範囲の細孔容積を有するものである、方法。
- 請求項1に記載の方法において、前記金属塩はアルミニウムを含み、前記安定な金属酸化物は、1またはそれ以上のドーパントによって安定化されたγ-アルミナを含むものである、方法。
- 請求項1に記載の方法において、前記金属塩はチタン及びドーパントを含み、前記安定な金属酸化物は、主にルチル相のチタニアを含むものである、方法。
- 請求項1に記載の方法において、前記金属塩はチタン及びドーパントを含み、前記安定な金属酸化物は、主にアナターゼ相のチタニアを含むものである、方法。
- 請求項1の方法に従って製造された多孔性で安定な金属酸化物。
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US34076210P | 2010-03-22 | 2010-03-22 | |
US61/340,762 | 2010-03-22 | ||
PCT/US2011/029472 WO2011119638A2 (en) | 2010-03-22 | 2011-03-22 | Method for making highly porous, stable metal oxide with a controlled pore structure |
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JP2013522164A true JP2013522164A (ja) | 2013-06-13 |
JP2013522164A5 JP2013522164A5 (ja) | 2017-05-25 |
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US (1) | US9334173B2 (ja) |
EP (1) | EP2550235B1 (ja) |
JP (1) | JP6180927B2 (ja) |
CN (1) | CN102906013B (ja) |
CA (1) | CA2794009C (ja) |
WO (1) | WO2011119638A2 (ja) |
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WO2017126602A1 (ja) * | 2016-01-21 | 2017-07-27 | 株式会社フジミインコーポレーテッド | 多孔質金属酸化物の製造方法 |
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EP2550235B1 (en) | 2019-07-03 |
WO2011119638A3 (en) | 2012-01-19 |
JP6180927B2 (ja) | 2017-08-16 |
US20110257008A1 (en) | 2011-10-20 |
EP2550235A2 (en) | 2013-01-30 |
US9334173B2 (en) | 2016-05-10 |
CN102906013A (zh) | 2013-01-30 |
CN102906013B (zh) | 2016-05-25 |
CA2794009C (en) | 2020-01-07 |
CA2794009A1 (en) | 2011-09-29 |
WO2011119638A2 (en) | 2011-09-29 |
EP2550235A4 (en) | 2015-06-17 |
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