JP7269173B2 - 結晶配向制御複合体 - Google Patents
結晶配向制御複合体 Download PDFInfo
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Description
[2]本発明の態様は、前記結晶片が、ナノ結晶片である[1]に記載の結晶配向制御複合体である。
本発明の結晶配向制御複合体は、薄片状のナノ結晶配向制御複合体であり、主表面及び端面をもつ複数のナノ結晶片が、相互に連結された、薄膜状の連結集合体であり、前記主表面が、特定の結晶面の結晶配向性を有し、薄膜状で、さらに偏光特異性を有することを特徴とする。
本発明の実施形態例に係るナノ結晶配向制御複合体の製造方法としては、例えば、まず、ナノ結晶片の二次元成長を優先的に起こすことで、複数のナノ結晶片が相互に連結された、薄膜状であるナノ結晶複合体を調製する。薄膜状であるナノ結晶複合体を調製するには、例えば、気相と液相の間、気相と液相と固相との間のような、異なる相が存在する境界に接する境界面を、核生成場所として利用する。具体例としては、気体と溶液の境界面、気体と溶液と反応装置壁面である固体との境界面、異なる種類の溶液の境界面、または溶液中に配置した基材(支持台)との境界面等に、複数のナノ結晶片が相互に連結された、薄膜状であるナノ結晶複合体を調製する。なお、本発明の製造方法では、核生成場所を限定して二次元成長させるので、通常の水熱法よりは低い温度で製造することが望ましい。
2.0gの塩化銅(II)二水和物(純正化学株式会社製)と、1.6gの尿素(純正化学株式会社製)とを混合した後、180mlのエチレングリコール(純正化学株式会社製)と120mlの水を添加してさらに混合した。得られた塩化銅と尿素の混合溶液を、内容積500mlの耐圧硝子容器に注入し、該容器内の密閉雰囲気下で150℃、12時間の熱処理を行った。その後、混合溶液を、室温に冷却して1日保持し、密閉容器から薄膜状の浮遊物であるナノ結晶複合体を生成させた。生成したナノ結晶複合体を回収し、メタノールおよび純水で洗浄後、真空下、70℃で10時間真空乾燥させて、酸化銅のナノ結晶片が連結された薄膜状の連結集合体からなるナノ結晶配向制御複合体を作製した。さらに、回収したナノ結晶複合体の光沢の有無を光学顕微鏡、マイクロスコープまたは肉眼での観察により、光沢を有するナノ結晶複合体、すなわち、偏光特異性を有するナノ結晶配向制御複合体(薄膜状において光沢を有する、偏光特異性を有するナノ結晶配向制御複合体)の触媒材料を得た。
実施例において、回収したナノ結晶複合体の光沢の有無を光学顕微鏡、マイクロスコープまたは肉眼で観察することで、光沢を有するナノ結晶複合体(偏光特異性を有するナノ結晶複合体)を選別、採取したことに代えて、回収したナノ結晶複合体の光沢の有無を光学顕微鏡または肉眼で観察することで、光沢を有さないナノ結晶複合体(偏光特異性を有さないナノ結晶複合体)を選別、採取した以外は、実施例と同様にして触媒を調製した。
上記実施例および比較例に係る触媒を用いて、触媒性能を評価した。触媒性能の評価は、ガス供給ライン、反応管及びガスサンプリング部よりなる試験装置を用いて行った。具体的には以下の通りである。
まず、反応管のガラスフィルタの間に、触媒を20mg充填した。次に、触媒を充填した反応管を、室温で試験装置の恒温槽にセットした。その後、キャリアガス(ヘリウム)を流して200℃まで加熱して表面に吸着した水分を除去後、原料ガスを反応管に一定量充填した後、一定時間毎に反応管出口ガスを採取・ガス分析を行い、触媒性能としてのNO還元率、N2生成率を算出した。
NO還元率(%)={NO(入口)-NO(出口)}×100/NO(入口)・・・(1)
N2生成率(%)=N2(出口)×100/NO(入口)・・・(2)
本実施例では、NO還元率及びN2生成率が、それぞれ50%以上を良好と評価した。
20 連結集合体
21 ナノ結晶片
22 主表面
23 端面
Claims (8)
- 薄片状であり、主表面及び端面をもつ複数の結晶片が、相互に連結された、薄膜状の連結集合体であり、
前記結晶片が、ナノ結晶片であり、
前記主表面が、特定の結晶面に対する結晶配向性を有し、
前記薄膜状連結集合体が、偏光特異性を有する結晶配向制御複合体。 - 前記結晶面が、原子交互積層面で原子最密面である請求項1に記載の結晶配向制御複合体。
- 前記主表面が、前記連結集合体の表面を形成している請求項1または2に記載の結晶配向制御複合体。
- 前記主表面が、前記端面よりも高い触媒活性を有する請求項1乃至3のいずれか1項に記載の結晶配向制御複合体。
- 前記結晶片が、酸化物である請求項1乃至4のいずれか1項に記載の結晶配向制御複合体。
- 前記結晶片が、酸化銅である請求項1乃至5のいずれか1項に記載の結晶配向制御複合体。
- 平面視における面積が200mm2以上、厚さが1~500μmである請求項1乃至6のいずれか1項に記載の結晶配向制御複合体。
- 請求項1乃至7のいずれか1項に記載の結晶配向制御複合体が、基材と一体になった結晶配向制御複合部品。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2018060414 | 2018-03-27 | ||
| JP2018060414 | 2018-03-27 | ||
| PCT/JP2019/012603 WO2019189032A1 (ja) | 2018-03-27 | 2019-03-25 | 結晶配向制御複合体 |
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| JPWO2019189032A1 JPWO2019189032A1 (ja) | 2021-02-12 |
| JP7269173B2 true JP7269173B2 (ja) | 2023-05-08 |
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| US20130089739A1 (en) | 2011-10-07 | 2013-04-11 | King Abdullah University of Science and Technology (KAUST) | Nanostructured metal oxides and mixed metal oxides, methods of making these nanoparticles, and methods of their use |
| WO2013133412A1 (ja) | 2012-03-08 | 2013-09-12 | 堺化学工業株式会社 | 板状集積型球状酸化亜鉛粒子、それらの製造方法、化粧料及び放熱性フィラー |
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| JP2016011247A (ja) | 2014-06-03 | 2016-01-21 | 株式会社豊田中央研究所 | 板状リン酸化合物粒子、それを含む板状リン酸化合物粉体、及び、板状リン酸化合物粉体の製造方法、並びに板状リン酸化合物粉体を用いた結晶配向アパタイトの製造方法 |
| WO2017010492A1 (ja) | 2015-07-15 | 2017-01-19 | 古河電気工業株式会社 | 基材一体型ナノ結晶金属酸化物複合体含有触媒およびその製造方法ならびに触媒部品 |
| WO2017010491A1 (ja) | 2015-07-15 | 2017-01-19 | 古河電気工業株式会社 | 水素貯蔵・供給用ナノ結晶複合体触媒および水素貯蔵・供給用ナノ結晶複合体触媒混合物並びに水素の供給方法 |
| CN106947995A (zh) | 2017-04-28 | 2017-07-14 | 合肥工业大学 | 一种单相CuO纳米片阵列薄膜及其制备方法 |
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- 2019-03-25 CN CN201980008508.7A patent/CN111629992B/zh active Active
- 2019-03-25 EP EP19777271.8A patent/EP3778470A4/en active Pending
- 2019-03-25 JP JP2019534429A patent/JP7269173B2/ja active Active
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2020
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Also Published As
| Publication number | Publication date |
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| CN111629992A (zh) | 2020-09-04 |
| WO2019189032A1 (ja) | 2019-10-03 |
| US20210008525A1 (en) | 2021-01-14 |
| EP3778470A4 (en) | 2021-12-22 |
| EP3778470A1 (en) | 2021-02-17 |
| JPWO2019189032A1 (ja) | 2021-02-12 |
| CN111629992B (zh) | 2022-10-14 |
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