JP6524215B2 - 中空型炭素カプセルの製造方法 - Google Patents
中空型炭素カプセルの製造方法 Download PDFInfo
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- JP6524215B2 JP6524215B2 JP2017508968A JP2017508968A JP6524215B2 JP 6524215 B2 JP6524215 B2 JP 6524215B2 JP 2017508968 A JP2017508968 A JP 2017508968A JP 2017508968 A JP2017508968 A JP 2017508968A JP 6524215 B2 JP6524215 B2 JP 6524215B2
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- carbon
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- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/043—Drying and spraying
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- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
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- C01B32/174—Derivatisation; Solubilisation; Dispersion in solvents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S977/734—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
- Y10S977/742—Carbon nanotubes, CNTs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本出願は、2014年9月30日付の韓国特許出願第10−2014−0131859号、2014年9月30日付の韓国特許出願第10−2014−0131860号、および2015年9月25日付の韓国特許出願第10−2015−0137058号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
炭素前駆体、高分子粒子、および溶媒を含む噴霧溶液を製造する段階(段階1);
前記噴霧溶液を噴霧および乾燥して粒子を製造する段階(段階2);および
前記粒子を熱処理して炭素前駆体を炭化させ、高分子粒子を除去する段階(段階3)。
本発明に係る中空型炭素カプセルの製造に先立ち、ソフトテンプレートとして用いられるポリスチレン粒子を製造した。
1)中空型炭素カプセルの製造
本発明に係る中空型炭素カプセルの製造方法を図1に概略的に示した。
熱処理工程でリグノスルホネートおよびポリスチレンの温度による挙動を確認するための熱重量分析(thermogravimetric analysis)を実施した。
前記結果から、リグノスルホネートとポリスチレンの熱的特性が異なり、ポリスチレンが全て熱分解する温度の前にリグノスルホネートがthermal polymerizationされることを確認した。
前記熱重量分析と同様の方法で実験するが、前記実施例で噴霧および乾燥して製造された粒子を用いて温度による重量を測定し、その結果を図3に示した。
前記製造した中空型炭素カプセルの比表面積およびpore容積を図4のように測定し、その結果、BET surface areaは126.9483m2/g、pore容積は0.328744cm3/gと測定された。
前記製造した中空型炭素カプセルを顕微鏡で観察して図5に示し、比較のために、ポリスチレン粒子、熱処理工程前のコア/シェル粒子も共に観察した。
1)炭素ナノチューブを含む中空型炭素カプセルの製造
蒸留水125mLに、CNT(暁星、10〜30μm)1.5gおよびPSS−Li水溶液(Aldrich、30wt%)2.5gを添加した後、10分間3回超音波処理して、炭素ナノチューブ水分散液を製造した。リグノスルホネート(lignosulfonate)1gを蒸留水150mLに添加し、bath sonicationを用いて完全に溶かした後、前記炭素ナノチューブ水分散液に添加した。これに、前記製造例で製造した10wt%PS sol.30mLを添加してhomogenizerで混合して、噴霧溶液を製造した。前記噴霧溶液をSpray−dryer(Outlet temp.:180℃、aspirator:95%、feeding rate:15%)で噴霧および乾燥し、tube furnaceで10℃/minの速度で600℃まで温度を上げた後、600℃で2時間焼成して(Ar条件)、中空型炭素カプセルを製造した。
前記実施例で製造した中空型炭素カプセルを顕微鏡で観察し、SEMイメージを図7に、TEMイメージを図8にそれぞれ示した。
前記実施例で製造した中空型炭素カプセルの比表面積およびpore容積を図9のように測定し、その結果、BET surface areaは133.5264m2/g、pore容積は0.309500cm3/gと測定された。
前記実施例で製造した中空型炭素カプセルの粉体抵抗を測定した。また、比較のために、実施例1で製造した中空型炭素カプセルの粉体抵抗も共に測定した。
Claims (12)
- 炭素前駆体、高分子粒子、および溶媒を含む噴霧溶液を製造する段階と、
前記噴霧溶液を噴霧および乾燥して粒子を製造する段階と、
前記粒子を200〜350℃で一次熱処理し、400〜600℃で二次熱処理して炭素前駆体を炭化させて炭素シェルを形成し、高分子粒子を除去する段階とを含み、
前記炭素前駆体は、前記高分子粒子の熱分解温度より低い温度で架橋される、中空型炭素カプセルの製造方法。 - 前記噴霧溶液は、炭素ナノチューブを含むことを特徴とする、請求項1に記載の製造方法。
- 前記炭素前駆体は、リグノスルホネート、タンニン酸、没食子酸、バニリン酸、ドーパミン、葉酸、コーヒー酸、ロズマリン酸、クロロゲン酸、フェルラ酸、シナピン酸、エラグ酸、カスタラギン、カスタリン、カスアリクチン、グランジニン、プニカラギン、プニカリン、ロブリンA、テリマグランジン、およびテルフラビンBから構成される群より選択される1種以上であることを特徴とする、請求項1に記載の製造方法。
- 前記高分子粒子の高分子は、ポリスチレン、ポリ(メチルメタクリレート)、ポリプロピレン、ポリエチレン、ポリウレタン、ポリビニルアルコール、ポリビニルアセテート、およびエチレン−ビニルアセテートから構成される群より選択される1種以上であることを特徴とする、請求項1に記載の製造方法。
- 前記高分子粒子の直径は、10nm〜20μmであることを特徴とする、請求項4に記載の製造方法。
- 前記炭素ナノチューブの長さは、0.5μm〜50μmであることを特徴とする、請求項2に記載の製造方法。
- 前記溶媒は、水であることを特徴とする、請求項1に記載の製造方法。
- 前記炭素前駆体および高分子粒子の重量比は、0.07:3〜70:3であることを特徴とする、請求項1に記載の製造方法。
- 前記炭素ナノチューブおよび炭素前駆体の重量比は、1.5:1〜10:1であることを特徴とする、請求項2に記載の製造方法。
- 前記炭素前駆体および高分子粒子の重量比は、1:3〜1:45であることを特徴とする、請求項1に記載の製造方法。
- 前記中空型炭素カプセルのporeの直径は、10nm〜20μmであることを特徴とする、請求項1に記載の製造方法。
- 前記中空型炭素カプセルのシェルの厚さは、1nm〜1,000nmであることを特徴とする、請求項1に記載の製造方法。
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KR1020150137058A KR101783446B1 (ko) | 2014-09-30 | 2015-09-25 | 중공형 탄소 캡슐의 제조 방법 |
KR10-2015-0137058 | 2015-09-25 | ||
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US9096955B2 (en) * | 2011-09-30 | 2015-08-04 | Ut-Battelle, Llc | Method for the preparation of carbon fiber from polyolefin fiber precursor, and carbon fibers made thereby |
US9358533B2 (en) | 2012-12-20 | 2016-06-07 | Basf Corporation | Hollow microsphere catalyst support and methods of making same |
PL3131848T3 (pl) * | 2014-04-14 | 2018-09-28 | Imerys Graphite & Carbon Switzerland Ltd. | Amorficzna powłoka węglowa cząstek węglowych z zawiesin zawierających amfifilowe związki organiczne |
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JP2017530076A (ja) | 2017-10-12 |
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