JP2020084322A - 多金属ナノ構造を作製するための全般的な合成ストラテジ - Google Patents
多金属ナノ構造を作製するための全般的な合成ストラテジ Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- B22F1/054—Nanosized particles
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/0547—Nanofibres or nanotubes
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B22F1/0551—Flake form nanoparticles
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
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- B22F9/00—Making metallic powder or suspensions thereof
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- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B22F2301/255—Silver or gold
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Abstract
Description
Claims (23)
- 中空多金属ナノ構造を調製する方法であって、
複数の第1の金属原子を有する第1の金属ナノ構造を提供することと、合成ストラテジを実施することと、を含み、前記合成ストラテジが、
前記複数の第1の金属原子の一部を対応する数の第2の金属イオンで置換することと、
第1の金属原子の拡散を促進して、前記中空多金属ナノ構造を提供することと、
を含む、方法。 - 前記複数の第1の金属原子の一部を前記対応する数の第2の金属イオンで置換することが、第1の金属ナノシートを含む前記第1の金属ナノシート溶液を、前記第2の金属イオンを含有する金属前駆体を含む金属前駆体溶液と合わせることを含む、請求項1に記載の方法。
- 前記第1の金属原子が第1の酸化電位を有し、前記第2の金属イオンが、第2の酸化電位を有する金属のイオンであり、前記第2の酸化電位が前記第1の酸化電位よりも高い、請求項2に記載の方法。
- 前記第2の酸化電位が、前記第1の酸化電位よりも少なくとも約0.6V高い、請求項3に記載の方法。
- 前記第2の金属が、金、白金、パラジウム、及びこれらの組み合わせからなる群から選択される、請求項3に記載の方法。
- 前記第1の金属が、銅を含む、請求項3に記載の方法。
- 前記金属前駆体が、クロロ金酸(HAuCl4)、パラジウム(II)アセチルアセトナート(Pd(acac)2)、塩化白金酸(H2PtCl6)、これらの組み合わせ、及びこれらの水和物からなる群から選択される、請求項2に記載の方法。
- 高温で、前記第1の金属ナノシート溶液を前記金属前駆体溶液と合わせる、請求項2に記載の方法。
- 前記高温が、約50〜180℃である、請求項8に記載の方法。
- 合わせられた前記第1の金属ナノシート溶液及び金属前駆体溶液が、約1分間〜3時間の合成時間にわたって前記高温で維持される、請求項8に記載の方法。
- 前記合成ストラテジが、一段階合成ストラテジである、請求項1に記載の方法。
- 前記一段階合成ストラテジが、前記第1の金属ナノシートを含む第1の金属ナノシート溶液を、前記第2の金属イオンを含有する金属前駆体を含む金属前駆体溶液と合わせることを含む、請求項11に記載の方法。
- 前記第1の金属原子が第1の酸化電位を有し、前記第2の金属イオンが、第2の酸化電位を有する金属のイオンであり、前記第2の酸化電位が前記第1の酸化電位よりも高い、請求項12に記載の方法。
- 前記第2の酸化電位が、前記第1の酸化電位よりも少なくとも約0.6V高い、請求項13に記載の方法。
- 前記第2の金属が、金、白金、パラジウム、及びこれらの組み合わせからなる群から選択される、請求項13に記載の方法。
- 前記第1の金属が、銅を含む、請求項13に記載の方法。
- 前記金属前駆体が、クロロ金酸(HAuCl4)、パラジウム(II)アセチルアセトナート(Pd(acac)2)、塩化白金酸(H2PtCl6)、これらの組み合わせ、及びこれらの水和物からなる群から選択される、請求項12に記載の方法。
- 高温で、前記第1の金属ナノシート溶液を前記金属前駆体溶液と合わせる、請求項12に記載の方法。
- 前記高温が、約50〜180℃である、請求項18に記載の方法。
- 合わせられた前記第1の金属ナノシート溶液及び金属前駆体溶液が、約1分間〜3時間の合成時間にわたって前記高温で維持される、請求項18に記載の方法。
- 第1の金属原子の拡散が、前記第1の金属ナノシート内部の第1の金属原子が前記第1の金属ナノシートの外部に拡散することを含む、請求項1に記載の方法。
- 複数の第1の金属原子及び複数の第2の金属原子を含み、
前記第1の金属が、銅、ニッケル、コバルト、鉄、及びこれらの組み合わせからなる群から選択され、
前記第2の金属が、金、白金、パラジウム、及びこれらの組み合わせからなる群から選択される、
中空多金属二次元ナノ構造。 - 中空多金属ナノ構造を調製する方法であって、
第1の金属ナノ構造を準備することと、
第2の金属のイオンを含む金属前駆体溶液を準備することであって、前記第2の金属が前記第1の金属とは異なり、かつ前記第1の金属の酸化電位よりも少なくとも0.6V高い酸化電位を有するように、第2の金属のイオンを含む金属前駆体溶液を準備することと、
前記第1の金属ナノ構造及び前記金属前駆体溶液を合わせて、前記第1の金属ナノ構造の1つ以上の第1の金属原子を前記第2の金属イオンで置換し、前記第1の金属及び前記第2の金属を含む中空ナノ構造を形成することと、
を含む、方法。
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