RU2011103676A - Высокоэффективный газофазный способ модификации и функционализации углеродных нановолокон парами азотной кислоты - Google Patents
Высокоэффективный газофазный способ модификации и функционализации углеродных нановолокон парами азотной кислоты Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract 15
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims abstract 7
- 229910017604 nitric acid Inorganic materials 0.000 title claims abstract 7
- 239000002134 carbon nanofiber Substances 0.000 title claims abstract 3
- 238000007306 functionalization reaction Methods 0.000 title claims abstract 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract 3
- 238000012986 modification Methods 0.000 title 1
- 230000004048 modification Effects 0.000 title 1
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract 17
- 239000004917 carbon fiber Substances 0.000 claims abstract 17
- 238000004438 BET method Methods 0.000 claims abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract 2
- 239000011521 glass Substances 0.000 claims abstract 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 125000002843 carboxylic acid group Chemical group 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 239000003463 adsorbent Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 claims 1
- 239000000969 carrier Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000003795 desorption Methods 0.000 claims 1
- 238000004146 energy storage Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000002638 heterogeneous catalyst Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
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Abstract
1. Способ функционализации углеродных волокон (1), при котором ! a) углеродные волокна (1) помещают в реактор (2), который имеет входное отверстие (3) и выходное отверстие (4), ! b) реактор (2) нагревают до температуры в интервале от 125 до 500°С, ! c) через реактор (2) пропускают пары азотной кислоты (5), а также ! d) обработанные углеродные волокна (1) затем высушивают. ! 2. Способ по п.1, отличающийся тем, что в качестве углеродных волокон (1) используют углеродные нановолокна, в частности такие, которые имеют внешний диаметр в интервале от 3 до 500 нм. ! 3. Способ по п.1, отличающийся тем, что в качестве углеродных волокон (1) используют такие, которые имеют удельную поверхность, определенную по методу БЭТ, в области от 10 до 500 м2/г, прежде всего в области от 20 до 200 м2/г. ! 4. Способ по п.1, отличающийся тем, что после выхода из реактора (4) предусматривают конденсатор (6), причем выходное отверстие этого конденсатора (7) для конденсата посредством обратной сливной линии (8) соединено с накопительной емкостью (9) для азотной кислоты. ! 5. Способ по п.4, отличающийся тем, что в качестве накопительной емкости (9) для азотной кислоты используют стеклянную колбу, которая нагревается, в частности, с помощью масляной бани (10). ! 6. Способ по п.1, отличающийся тем, что после стадии b) реактор (2) выдерживают при данной температуре в течение промежутка времени в интервале от 3 до 20 ч, в частности в интервале от 5 до 15 ч. ! 7. Способ по п.1, отличающийся тем, что стадию с) проводят в течение промежутка времени в интервале от 0,5 до 4 ч, а также, независимо от этого, при температуре в области от 80 до 150°С. ! 8. Углеродные волокна, отличающиеся тем, что соотношение атомов кислорода и атомов угл
Claims (13)
1. Способ функционализации углеродных волокон (1), при котором
a) углеродные волокна (1) помещают в реактор (2), который имеет входное отверстие (3) и выходное отверстие (4),
b) реактор (2) нагревают до температуры в интервале от 125 до 500°С,
c) через реактор (2) пропускают пары азотной кислоты (5), а также
d) обработанные углеродные волокна (1) затем высушивают.
2. Способ по п.1, отличающийся тем, что в качестве углеродных волокон (1) используют углеродные нановолокна, в частности такие, которые имеют внешний диаметр в интервале от 3 до 500 нм.
3. Способ по п.1, отличающийся тем, что в качестве углеродных волокон (1) используют такие, которые имеют удельную поверхность, определенную по методу БЭТ, в области от 10 до 500 м2/г, прежде всего в области от 20 до 200 м2/г.
4. Способ по п.1, отличающийся тем, что после выхода из реактора (4) предусматривают конденсатор (6), причем выходное отверстие этого конденсатора (7) для конденсата посредством обратной сливной линии (8) соединено с накопительной емкостью (9) для азотной кислоты.
5. Способ по п.4, отличающийся тем, что в качестве накопительной емкости (9) для азотной кислоты используют стеклянную колбу, которая нагревается, в частности, с помощью масляной бани (10).
6. Способ по п.1, отличающийся тем, что после стадии b) реактор (2) выдерживают при данной температуре в течение промежутка времени в интервале от 3 до 20 ч, в частности в интервале от 5 до 15 ч.
7. Способ по п.1, отличающийся тем, что стадию с) проводят в течение промежутка времени в интервале от 0,5 до 4 ч, а также, независимо от этого, при температуре в области от 80 до 150°С.
8. Углеродные волокна, отличающиеся тем, что соотношение атомов кислорода и атомов углерода, полученное из атомных поверхностных концентраций, измеренных с помощью рентгеновской фотоэлектронной спектроскопии (РФЭС), больше, чем 0,18.
9. Углеродные волокна, отличающиеся тем, что они в химически связанном виде содержат более чем 350 мкмоль групп карбоновых кислот на каждый грамм углерода.
10. Углеродные волокна по п.9, отличающиеся тем, что они в химически связанном виде содержат более чем 400 мкмоль суммарного количества групп карбоновых кислот и групп ангидридов карбоновых кислот на каждый грамм углерода.
11. Углеродные волокна по п.9, отличающиеся тем, что они при анализе методом термопрограммируемой десорбции (ТПД) отщепляют более чем 45% от своего химически связанного кислорода в виде CO2.
12. Углеродные волокна по п.8, отличающиеся тем, что эти волокна обладают средним диаметром от 3 до 500 нм, а также отношением длины к диаметру, составляющим по меньшей мере 5:1.
13. Применение углеродных волокон по пп.8-12 в композитных конструкционных материалах, аккумуляторах энергии, в качестве сенсоров, в качестве адсорбирующих средств, носителей для гетерогенных катализаторов или в качестве материалов с каталитической активностью.
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CN102153069B (zh) * | 2011-02-25 | 2012-12-19 | 中国科学院长春应用化学研究所 | 一种纳米碳材料的处理方法 |
KR20120105827A (ko) * | 2011-03-16 | 2012-09-26 | 삼성전자주식회사 | 정착장치용 발열체, 이를 구비한 정착장치 및 화상형성장치 |
CN102424379B (zh) * | 2011-09-20 | 2013-11-20 | 奇瑞汽车股份有限公司 | 一种高分散性碳纳米管的制备方法 |
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CN106215949A (zh) * | 2016-08-02 | 2016-12-14 | 上海应用技术学院 | 一种低温选择性催化还原脱硝催化剂及其制备方法 |
JP6857806B2 (ja) * | 2016-12-05 | 2021-04-14 | パナソニックIpマネジメント株式会社 | 燃料電池用の金属粒子担持触媒およびその製造方法、およびその触媒を用いた燃料電池 |
CN109847706A (zh) * | 2019-02-12 | 2019-06-07 | 广州大学 | 一种表面官能团功能化水热炭吸附剂及其制备方法与应用 |
CN111139646A (zh) * | 2020-01-14 | 2020-05-12 | 贵州大学 | 一种改性碳纤维及其与尼龙6复合材料的制备 |
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US4729820A (en) * | 1986-05-30 | 1988-03-08 | Amoco Corporation | Multielectrolyte shear treatment of carbon fibers |
JPH02118121A (ja) * | 1988-10-25 | 1990-05-02 | Osaka Gas Co Ltd | ピッチ系活性炭素繊維およびその製造方法 |
JPH06166953A (ja) * | 1992-11-25 | 1994-06-14 | Osaka Gas Co Ltd | 炭素繊維の表面処理方法および炭素繊維 |
EP1061042A1 (en) * | 1999-06-15 | 2000-12-20 | Iljin Nanotech Co., Ltd. | Method for gas phase purification of carbon nanotubes by thermal treatment in diffusion furnace |
KR100382878B1 (ko) * | 1999-06-15 | 2003-05-09 | 일진나노텍 주식회사 | 고순도 탄소나노튜브의 합성 방법 |
JP2002177702A (ja) | 2000-12-08 | 2002-06-25 | Sony Corp | カーボンナノ構造体の一段階精製用の超音波還流システム |
DE50209165D1 (de) * | 2001-02-21 | 2007-02-15 | Basf Ag | Verfahren zur herstellung von d-pantothensäure und/oder salze als zusatz zu tierfuttermitteln |
WO2003040446A2 (en) * | 2001-06-15 | 2003-05-15 | The Pennsylvania State Research Foundation | Method of purifying nanotubes and nanofibers using electromagnetic radiation |
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KR100533414B1 (ko) * | 2004-05-12 | 2005-12-02 | 한국전력공사 | 활성탄소섬유의 질산 표면처리장치 및 표면처리방법 |
US20080031802A1 (en) * | 2004-10-22 | 2008-02-07 | Hyperion Catalysis International, Inc. | Ozonolysis of carbon nanotubes |
DE102004054959A1 (de) * | 2004-11-13 | 2006-05-18 | Bayer Technology Services Gmbh | Katalysator zur Herstellung von Kohlenstoffnanoröhrchen durch Zersetzung von gas-förmigen Kohlenverbindungen an einem heterogenen Katalysator |
DE102006007147A1 (de) * | 2006-02-16 | 2007-08-23 | Bayer Technology Services Gmbh | Verfahren zur kontinuierlichen Herstellung von Katalysatoren |
DE102007044031A1 (de) * | 2007-09-14 | 2009-03-19 | Bayer Materialscience Ag | Kohlenstoffnanoröhrchenpulver, Kohlenstoffnanoröhrchen und Verfahren zu ihrer Herstellung |
KR101001385B1 (ko) * | 2008-04-23 | 2010-12-14 | 한화케미칼 주식회사 | 탄소나노튜브의 연속적인 표면처리 방법 및 장치 |
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2009
- 2009-06-27 CN CN2009801252026A patent/CN102099515A/zh active Pending
- 2009-06-27 EP EP09772124A patent/EP2297386A2/de not_active Withdrawn
- 2009-06-27 WO PCT/EP2009/004664 patent/WO2010000424A2/de active Application Filing
- 2009-06-27 KR KR1020107029695A patent/KR20110027723A/ko not_active Application Discontinuation
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JP2011526331A (ja) | 2011-10-06 |
EP2297386A2 (de) | 2011-03-23 |
AU2009266063A1 (en) | 2010-01-07 |
WO2010000424A3 (de) | 2010-12-29 |
US20110104492A1 (en) | 2011-05-05 |
DE102008031579A1 (de) | 2010-01-07 |
BRPI0915597A2 (pt) | 2019-08-27 |
CN102099515A (zh) | 2011-06-15 |
KR20110027723A (ko) | 2011-03-16 |
CA2729693A1 (en) | 2010-01-07 |
WO2010000424A2 (de) | 2010-01-07 |
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